[PATCH v7 0/9] Add STG/ISP/VOUT clock and reset drivers for StarFive JH7110

[PATCH v7 0/9] Add STG/ISP/VOUT clock and reset drivers for StarFive JH7110

[Xingyu Wu]

This patch serises are base on the basic JH7110 SYSCRG/AONCRG
drivers and add new partial clock drivers and reset supports
about System-Top-Group(STG), Image-Signal-Process(ISP)
and Video-Output(VOUT) for the StarFive JH7110 RISC-V SoC. These
clocks and resets could be used by DMA, VIN and Display modules.

Patches 1 and 2 are about the System-Top-Group clock and reset
generator(STGCRG) part. The first patch adds docunmentation to
describe STG bindings, and the second patch adds clock driver to
support STG clocks and resets as auxiliary device for JH7110.

Patches 3 and 4 are about the Image-Signal-Process clock and reset
gennerator(ISPCRG) part. The first patch adds docunmentation to
describe ISP bindings, and the second patch adds clock driver to
support ISP clocks and resets as auxiliary device for JH7110.
And ISP clocks should power on and enable the SYSCRG clocks first
before registering.

Patches 5 and 6 are about the Video-Output clock and reset
generator(VOUTCRG) part. The first patch adds docunmentation to
describe VOUT bindings, and the second patch adds clock driver to
support VOUT clocks and resets as auxiliary device for JH7110.
And VOUT clocks also should power on and enable the SYSCRG clocks
first before registering.

Patch 7 adds struct members to support STG/ISP/VOUT resets.
Patch 8 adds external clocks which ISP and VOUT clock driver need.
Patch 9 adds device node about STGCRG, ISPCRG and VOUTCRG to JH7110 dts.

Changes since v6:
- Rebased on the Linux 6.5-rc1.
- Dropped the unnecessary selections in the Kconfig.
- Dropped the patches about the PMU node and MAINTIANERS.
- Add the reviews.

v6: https://lore.kernel.org/all/20230518101234.143748-1-xingyu.wu@starfivetech.com/

Changes since v5: 
- Rebased on the Linux 6.4-rc2.
- Modified the reset name about VOUTCRG to fix the error with
  CONFIG_FORTIFY_SOURCE=y
- Added the patch about pmu node.

v5: https://lore.kernel.org/all/20230424135409.6648-1-xingyu.wu@starfivetech.com/

Changes since v4: 
- Rebased on the lastest patches about fixing the basic clock and reset drivers.
- Dropped the 'dev_set_drvdata()' in STG clock driver.
- Modified the data with 'dev_set_drvdata()' in ISP/VOUT clock driver
  and move the struct about the data to JH7110 header file, which both
  ISP and VOUT clock drivers will use.

v4: https://lore.kernel.org/all/20230411135558.44282-1-xingyu.wu@starfivetech.com/

Changes since v3: 
- Rebased on the lastest JH71X0 clock and reset driver of patchset[1]
  and modified the parameters of the register reset functions.
- The patch 1 combined three commits on STG/ISP/VOUT resets into one.
  And Changed the auxiliary_device_id name from
  "clk_starfive_jh71x0.reset-*" to "clk_starfive_jh7110_sys.rst-*".
- Added a maintainer in STARFIVE JH71X0 CLOCK DRIVERS.

v3: https://lore.kernel.org/all/20230314124404.117592-1-xingyu.wu@starfivetech.com/

Changes since v2:
Patch 1:
- Dropped the modification of maintainers.
- Modified clock and reset names in the dt-bindings header files.
Patch 3:
- Added 'Emil Renner Berthing' as the author.
- Used 'default m' in Kconfig file.
- Changed the flags of 'CLK_IGNORE_UNUSED' to 0 or 'CLK_IS_CRITICAL'.
Patch 4:
- Dropped the 'reset-names' property.
- Shortened the clock and reset names in the dt-bindings header files.
Pacth 6:
- Used 'default m' in Kconfig file.
- Changed the flags of 'CLK_IGNORE_UNUSED' to 0.
- Set reset_control struct to a local variable because it just is used
  one time in probe.
Pacth 7:
- Dropped the 'reset-names' property.
Patch 9:
- Used 'default m' in Kconfig file.
- Set reset_control struct to a local variable because it just is used
  one time in probe.
Patch 10:
- Changed the order of externel clock in alphanumerical order.
Patch 11:
- Dropped the 'reset-names' property in ispcrg and voutcrg node.

v2: https://lore.kernel.org/all/20230221083323.302471-1-xingyu.wu@starfivetech.com/

Changes since v1:
- Modified the binding and dropped the indentation.
- Removed the useless header files in the drivers.
- Used an array lookup instead of a pile of conditions about parent
  clocks' name.
- Added clocks operation on driver remove.

v1: https://lore.kernel.org/all/20230120024445.244345-1-xingyu.wu@starfivetech.com/

Emil Renner Berthing (1):
  clk: starfive: Add StarFive JH7110 System-Top-Group clock driver

Xingyu Wu (8):
  dt-bindings: clock: Add StarFive JH7110 System-Top-Group clock and
    reset generator
  dt-bindings: clock: Add StarFive JH7110 Image-Signal-Process clock and
    reset generator
  clk: starfive: Add StarFive JH7110 Image-Signal-Process clock driver
  dt-bindings: clock: Add StarFive JH7110 Video-Output clock and reset
    generator
  clk: starfive: Add StarFive JH7110 Video-Output clock driver
  reset: starfive: jh7110: Add StarFive STG/ISP/VOUT resets support
  riscv: dts: starfive: jh7110: Add DVP and HDMI TX pixel external
    clocks
  riscv: dts: starfive: jh7110: Add STGCRG/ISPCRG/VOUTCRG nodes

 .../clock/starfive,jh7110-ispcrg.yaml         |  87 +++++++
 .../clock/starfive,jh7110-stgcrg.yaml         |  82 ++++++
 .../clock/starfive,jh7110-voutcrg.yaml        |  90 +++++++
 .../jh7110-starfive-visionfive-2.dtsi         |   8 +
 arch/riscv/boot/dts/starfive/jh7110.dtsi      |  67 +++++
 drivers/clk/starfive/Kconfig                  |  24 ++
 drivers/clk/starfive/Makefile                 |   3 +
 .../clk/starfive/clk-starfive-jh7110-isp.c    | 232 +++++++++++++++++
 .../clk/starfive/clk-starfive-jh7110-stg.c    | 173 +++++++++++++
 .../clk/starfive/clk-starfive-jh7110-vout.c   | 239 ++++++++++++++++++
 drivers/clk/starfive/clk-starfive-jh7110.h    |   6 +
 .../reset/starfive/reset-starfive-jh7110.c    |  30 +++
 .../dt-bindings/clock/starfive,jh7110-crg.h   |  74 ++++++
 .../dt-bindings/reset/starfive,jh7110-crg.h   |  60 +++++
 14 files changed, 1175 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-ispcrg.yaml
 create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml
 create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-voutcrg.yaml
 create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-isp.c
 create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-stg.c
 create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-vout.c

-- 
2.25.1

[PATCH v7 1/9] dt-bindings: clock: Add StarFive JH7110 System-Top-Group clock and reset generator

[Xingyu Wu]

Add bindings for the System-Top-Group clock and reset generator (STGCRG)
on the JH7110 RISC-V SoC by StarFive Ltd.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
---
 .../clock/starfive,jh7110-stgcrg.yaml         | 82 +++++++++++++++++++
 .../dt-bindings/clock/starfive,jh7110-crg.h   | 34 ++++++++
 .../dt-bindings/reset/starfive,jh7110-crg.h   | 28 +++++++
 3 files changed, 144 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml

diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml
new file mode 100644
index 000000000000..b64ccd84200a
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/starfive,jh7110-stgcrg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 System-Top-Group Clock and Reset Generator
+
+maintainers:
+  - Xingyu Wu <xingyu.wu@starfivetech.com>
+
+properties:
+  compatible:
+    const: starfive,jh7110-stgcrg
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Main Oscillator (24 MHz)
+      - description: HIFI4 core
+      - description: STG AXI/AHB
+      - description: USB (125 MHz)
+      - description: CPU Bus
+      - description: HIFI4 Axi
+      - description: NOC STG Bus
+      - description: APB Bus
+
+  clock-names:
+    items:
+      - const: osc
+      - const: hifi4_core
+      - const: stg_axiahb
+      - const: usb_125m
+      - const: cpu_bus
+      - const: hifi4_axi
+      - const: nocstg_bus
+      - const: apb_bus
+
+  '#clock-cells':
+    const: 1
+    description:
+      See <dt-bindings/clock/starfive,jh7110-crg.h> for valid indices.
+
+  '#reset-cells':
+    const: 1
+    description:
+      See <dt-bindings/reset/starfive,jh7110-crg.h> for valid indices.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - '#clock-cells'
+  - '#reset-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/starfive,jh7110-crg.h>
+
+    stgcrg: clock-controller@10230000 {
+        compatible = "starfive,jh7110-stgcrg";
+        reg = <0x10230000 0x10000>;
+        clocks = <&osc>,
+                 <&syscrg JH7110_SYSCLK_HIFI4_CORE>,
+                 <&syscrg JH7110_SYSCLK_STG_AXIAHB>,
+                 <&syscrg JH7110_SYSCLK_USB_125M>,
+                 <&syscrg JH7110_SYSCLK_CPU_BUS>,
+                 <&syscrg JH7110_SYSCLK_HIFI4_AXI>,
+                 <&syscrg JH7110_SYSCLK_NOCSTG_BUS>,
+                 <&syscrg JH7110_SYSCLK_APB_BUS>;
+        clock-names = "osc", "hifi4_core",
+                      "stg_axiahb", "usb_125m",
+                      "cpu_bus", "hifi4_axi",
+                      "nocstg_bus", "apb_bus";
+        #clock-cells = <1>;
+        #reset-cells = <1>;
+    };
diff --git a/include/dt-bindings/clock/starfive,jh7110-crg.h b/include/dt-bindings/clock/starfive,jh7110-crg.h
index 06257bfd9ac1..6c8e8b4cf1f6 100644
--- a/include/dt-bindings/clock/starfive,jh7110-crg.h
+++ b/include/dt-bindings/clock/starfive,jh7110-crg.h
@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
 /*
  * Copyright 2022 Emil Renner Berthing <kernel@esmil.dk>
+ * Copyright 2022 StarFive Technology Co., Ltd.
  */
 
 #ifndef __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__
@@ -218,4 +219,37 @@
 
 #define JH7110_AONCLK_END			14
 
+/* STGCRG clocks */
+#define JH7110_STGCLK_HIFI4_CLK_CORE		0
+#define JH7110_STGCLK_USB0_APB			1
+#define JH7110_STGCLK_USB0_UTMI_APB		2
+#define JH7110_STGCLK_USB0_AXI			3
+#define JH7110_STGCLK_USB0_LPM			4
+#define JH7110_STGCLK_USB0_STB			5
+#define JH7110_STGCLK_USB0_APP_125		6
+#define JH7110_STGCLK_USB0_REFCLK		7
+#define JH7110_STGCLK_PCIE0_AXI_MST0		8
+#define JH7110_STGCLK_PCIE0_APB			9
+#define JH7110_STGCLK_PCIE0_TL			10
+#define JH7110_STGCLK_PCIE1_AXI_MST0		11
+#define JH7110_STGCLK_PCIE1_APB			12
+#define JH7110_STGCLK_PCIE1_TL			13
+#define JH7110_STGCLK_PCIE_SLV_MAIN		14
+#define JH7110_STGCLK_SEC_AHB			15
+#define JH7110_STGCLK_SEC_MISC_AHB		16
+#define JH7110_STGCLK_GRP0_MAIN			17
+#define JH7110_STGCLK_GRP0_BUS			18
+#define JH7110_STGCLK_GRP0_STG			19
+#define JH7110_STGCLK_GRP1_MAIN			20
+#define JH7110_STGCLK_GRP1_BUS			21
+#define JH7110_STGCLK_GRP1_STG			22
+#define JH7110_STGCLK_GRP1_HIFI			23
+#define JH7110_STGCLK_E2_RTC			24
+#define JH7110_STGCLK_E2_CORE			25
+#define JH7110_STGCLK_E2_DBG			26
+#define JH7110_STGCLK_DMA1P_AXI			27
+#define JH7110_STGCLK_DMA1P_AHB			28
+
+#define JH7110_STGCLK_END			29
+
 #endif /* __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__ */
diff --git a/include/dt-bindings/reset/starfive,jh7110-crg.h b/include/dt-bindings/reset/starfive,jh7110-crg.h
index d78e38690ceb..4e96ab81dd8e 100644
--- a/include/dt-bindings/reset/starfive,jh7110-crg.h
+++ b/include/dt-bindings/reset/starfive,jh7110-crg.h
@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
 /*
  * Copyright (C) 2022 Emil Renner Berthing <kernel@esmil.dk>
+ * Copyright (C) 2022 StarFive Technology Co., Ltd.
  */
 
 #ifndef __DT_BINDINGS_RESET_STARFIVE_JH7110_CRG_H__
@@ -151,4 +152,31 @@
 
 #define JH7110_AONRST_END			8
 
+/* STGCRG resets */
+#define JH7110_STGRST_SYSCON			0
+#define JH7110_STGRST_HIFI4_CORE		1
+#define JH7110_STGRST_HIFI4_AXI			2
+#define JH7110_STGRST_SEC_AHB			3
+#define JH7110_STGRST_E24_CORE			4
+#define JH7110_STGRST_DMA1P_AXI			5
+#define JH7110_STGRST_DMA1P_AHB			6
+#define JH7110_STGRST_USB0_AXI			7
+#define JH7110_STGRST_USB0_APB			8
+#define JH7110_STGRST_USB0_UTMI_APB		9
+#define JH7110_STGRST_USB0_PWRUP		10
+#define JH7110_STGRST_PCIE0_AXI_MST0		11
+#define JH7110_STGRST_PCIE0_AXI_SLV0		12
+#define JH7110_STGRST_PCIE0_AXI_SLV		13
+#define JH7110_STGRST_PCIE0_BRG			14
+#define JH7110_STGRST_PCIE0_CORE		15
+#define JH7110_STGRST_PCIE0_APB			16
+#define JH7110_STGRST_PCIE1_AXI_MST0		17
+#define JH7110_STGRST_PCIE1_AXI_SLV0		18
+#define JH7110_STGRST_PCIE1_AXI_SLV		19
+#define JH7110_STGRST_PCIE1_BRG			20
+#define JH7110_STGRST_PCIE1_CORE		21
+#define JH7110_STGRST_PCIE1_APB			22
+
+#define JH7110_STGRST_END			23
+
 #endif /* __DT_BINDINGS_RESET_STARFIVE_JH7110_CRG_H__ */
-- 
2.25.1

Re: [PATCH v7 1/9] dt-bindings: clock: Add StarFive JH7110 System-Top-Group clock and reset generator

[Emil Renner Berthing]

On Wed, 12 Jul 2023 at 11:22, Xingyu Wu <xingyu.wu@starfivetech.com> wrote:
>
> Add bindings for the System-Top-Group clock and reset generator (STGCRG)
> on the JH7110 RISC-V SoC by StarFive Ltd.
>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>

> Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
> ---
>  .../clock/starfive,jh7110-stgcrg.yaml         | 82 +++++++++++++++++++
>  .../dt-bindings/clock/starfive,jh7110-crg.h   | 34 ++++++++
>  .../dt-bindings/reset/starfive,jh7110-crg.h   | 28 +++++++
>  3 files changed, 144 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml
>
> diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml
> new file mode 100644
> index 000000000000..b64ccd84200a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml
> @@ -0,0 +1,82 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/starfive,jh7110-stgcrg.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: StarFive JH7110 System-Top-Group Clock and Reset Generator
> +
> +maintainers:
> +  - Xingyu Wu <xingyu.wu@starfivetech.com>
> +
> +properties:
> +  compatible:
> +    const: starfive,jh7110-stgcrg
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: Main Oscillator (24 MHz)
> +      - description: HIFI4 core
> +      - description: STG AXI/AHB
> +      - description: USB (125 MHz)
> +      - description: CPU Bus
> +      - description: HIFI4 Axi
> +      - description: NOC STG Bus
> +      - description: APB Bus
> +
> +  clock-names:
> +    items:
> +      - const: osc
> +      - const: hifi4_core
> +      - const: stg_axiahb
> +      - const: usb_125m
> +      - const: cpu_bus
> +      - const: hifi4_axi
> +      - const: nocstg_bus
> +      - const: apb_bus
> +
> +  '#clock-cells':
> +    const: 1
> +    description:
> +      See <dt-bindings/clock/starfive,jh7110-crg.h> for valid indices.
> +
> +  '#reset-cells':
> +    const: 1
> +    description:
> +      See <dt-bindings/reset/starfive,jh7110-crg.h> for valid indices.
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - '#clock-cells'
> +  - '#reset-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/starfive,jh7110-crg.h>
> +
> +    stgcrg: clock-controller@10230000 {
> +        compatible = "starfive,jh7110-stgcrg";
> +        reg = <0x10230000 0x10000>;
> +        clocks = <&osc>,
> +                 <&syscrg JH7110_SYSCLK_HIFI4_CORE>,
> +                 <&syscrg JH7110_SYSCLK_STG_AXIAHB>,
> +                 <&syscrg JH7110_SYSCLK_USB_125M>,
> +                 <&syscrg JH7110_SYSCLK_CPU_BUS>,
> +                 <&syscrg JH7110_SYSCLK_HIFI4_AXI>,
> +                 <&syscrg JH7110_SYSCLK_NOCSTG_BUS>,
> +                 <&syscrg JH7110_SYSCLK_APB_BUS>;
> +        clock-names = "osc", "hifi4_core",
> +                      "stg_axiahb", "usb_125m",
> +                      "cpu_bus", "hifi4_axi",
> +                      "nocstg_bus", "apb_bus";
> +        #clock-cells = <1>;
> +        #reset-cells = <1>;
> +    };
> diff --git a/include/dt-bindings/clock/starfive,jh7110-crg.h b/include/dt-bindings/clock/starfive,jh7110-crg.h
> index 06257bfd9ac1..6c8e8b4cf1f6 100644
> --- a/include/dt-bindings/clock/starfive,jh7110-crg.h
> +++ b/include/dt-bindings/clock/starfive,jh7110-crg.h
> @@ -1,6 +1,7 @@
>  /* SPDX-License-Identifier: GPL-2.0 OR MIT */
>  /*
>   * Copyright 2022 Emil Renner Berthing <kernel@esmil.dk>
> + * Copyright 2022 StarFive Technology Co., Ltd.
>   */
>
>  #ifndef __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__
> @@ -218,4 +219,37 @@
>
>  #define JH7110_AONCLK_END                      14
>
> +/* STGCRG clocks */
> +#define JH7110_STGCLK_HIFI4_CLK_CORE           0
> +#define JH7110_STGCLK_USB0_APB                 1
> +#define JH7110_STGCLK_USB0_UTMI_APB            2
> +#define JH7110_STGCLK_USB0_AXI                 3
> +#define JH7110_STGCLK_USB0_LPM                 4
> +#define JH7110_STGCLK_USB0_STB                 5
> +#define JH7110_STGCLK_USB0_APP_125             6
> +#define JH7110_STGCLK_USB0_REFCLK              7
> +#define JH7110_STGCLK_PCIE0_AXI_MST0           8
> +#define JH7110_STGCLK_PCIE0_APB                        9
> +#define JH7110_STGCLK_PCIE0_TL                 10
> +#define JH7110_STGCLK_PCIE1_AXI_MST0           11
> +#define JH7110_STGCLK_PCIE1_APB                        12
> +#define JH7110_STGCLK_PCIE1_TL                 13
> +#define JH7110_STGCLK_PCIE_SLV_MAIN            14
> +#define JH7110_STGCLK_SEC_AHB                  15
> +#define JH7110_STGCLK_SEC_MISC_AHB             16
> +#define JH7110_STGCLK_GRP0_MAIN                        17
> +#define JH7110_STGCLK_GRP0_BUS                 18
> +#define JH7110_STGCLK_GRP0_STG                 19
> +#define JH7110_STGCLK_GRP1_MAIN                        20
> +#define JH7110_STGCLK_GRP1_BUS                 21
> +#define JH7110_STGCLK_GRP1_STG                 22
> +#define JH7110_STGCLK_GRP1_HIFI                        23
> +#define JH7110_STGCLK_E2_RTC                   24
> +#define JH7110_STGCLK_E2_CORE                  25
> +#define JH7110_STGCLK_E2_DBG                   26
> +#define JH7110_STGCLK_DMA1P_AXI                        27
> +#define JH7110_STGCLK_DMA1P_AHB                        28
> +
> +#define JH7110_STGCLK_END                      29
> +
>  #endif /* __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__ */
> diff --git a/include/dt-bindings/reset/starfive,jh7110-crg.h b/include/dt-bindings/reset/starfive,jh7110-crg.h
> index d78e38690ceb..4e96ab81dd8e 100644
> --- a/include/dt-bindings/reset/starfive,jh7110-crg.h
> +++ b/include/dt-bindings/reset/starfive,jh7110-crg.h
> @@ -1,6 +1,7 @@
>  /* SPDX-License-Identifier: GPL-2.0 OR MIT */
>  /*
>   * Copyright (C) 2022 Emil Renner Berthing <kernel@esmil.dk>
> + * Copyright (C) 2022 StarFive Technology Co., Ltd.
>   */
>
>  #ifndef __DT_BINDINGS_RESET_STARFIVE_JH7110_CRG_H__
> @@ -151,4 +152,31 @@
>
>  #define JH7110_AONRST_END                      8
>
> +/* STGCRG resets */
> +#define JH7110_STGRST_SYSCON                   0
> +#define JH7110_STGRST_HIFI4_CORE               1
> +#define JH7110_STGRST_HIFI4_AXI                        2
> +#define JH7110_STGRST_SEC_AHB                  3
> +#define JH7110_STGRST_E24_CORE                 4
> +#define JH7110_STGRST_DMA1P_AXI                        5
> +#define JH7110_STGRST_DMA1P_AHB                        6
> +#define JH7110_STGRST_USB0_AXI                 7
> +#define JH7110_STGRST_USB0_APB                 8
> +#define JH7110_STGRST_USB0_UTMI_APB            9
> +#define JH7110_STGRST_USB0_PWRUP               10
> +#define JH7110_STGRST_PCIE0_AXI_MST0           11
> +#define JH7110_STGRST_PCIE0_AXI_SLV0           12
> +#define JH7110_STGRST_PCIE0_AXI_SLV            13
> +#define JH7110_STGRST_PCIE0_BRG                        14
> +#define JH7110_STGRST_PCIE0_CORE               15
> +#define JH7110_STGRST_PCIE0_APB                        16
> +#define JH7110_STGRST_PCIE1_AXI_MST0           17
> +#define JH7110_STGRST_PCIE1_AXI_SLV0           18
> +#define JH7110_STGRST_PCIE1_AXI_SLV            19
> +#define JH7110_STGRST_PCIE1_BRG                        20
> +#define JH7110_STGRST_PCIE1_CORE               21
> +#define JH7110_STGRST_PCIE1_APB                        22
> +
> +#define JH7110_STGRST_END                      23
> +
>  #endif /* __DT_BINDINGS_RESET_STARFIVE_JH7110_CRG_H__ */
> --
> 2.25.1
>
>
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv

[PATCH v7 2/9] clk: starfive: Add StarFive JH7110 System-Top-Group clock driver

[Xingyu Wu]

From: Emil Renner Berthing <emil.renner.berthing@canonical.com>

Add driver for the StarFive JH7110 System-Top-Group clock controller.

Reviewed-by: Hal Feng <hal.feng@starfivetech.com>
Co-developed-by: Xingyu Wu <xingyu.wu@starfivetech.com>
Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
Signed-off-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
---
 drivers/clk/starfive/Kconfig                  |   8 +
 drivers/clk/starfive/Makefile                 |   1 +
 .../clk/starfive/clk-starfive-jh7110-stg.c    | 173 ++++++++++++++++++
 3 files changed, 182 insertions(+)
 create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-stg.c

diff --git a/drivers/clk/starfive/Kconfig b/drivers/clk/starfive/Kconfig
index 5d2333106f13..eb1023b5e95a 100644
--- a/drivers/clk/starfive/Kconfig
+++ b/drivers/clk/starfive/Kconfig
@@ -39,3 +39,11 @@ config CLK_STARFIVE_JH7110_AON
 	help
 	  Say yes here to support the always-on clock controller on the
 	  StarFive JH7110 SoC.
+
+config CLK_STARFIVE_JH7110_STG
+	tristate "StarFive JH7110 System-Top-Group clock support"
+	depends on CLK_STARFIVE_JH7110_SYS
+	default m if ARCH_STARFIVE
+	help
+	  Say yes here to support the System-Top-Group clock controller
+	  on the StarFive JH7110 SoC.
diff --git a/drivers/clk/starfive/Makefile b/drivers/clk/starfive/Makefile
index f3df7d957b1e..b81e97ee2659 100644
--- a/drivers/clk/starfive/Makefile
+++ b/drivers/clk/starfive/Makefile
@@ -6,3 +6,4 @@ obj-$(CONFIG_CLK_STARFIVE_JH7100_AUDIO)	+= clk-starfive-jh7100-audio.o
 
 obj-$(CONFIG_CLK_STARFIVE_JH7110_SYS)	+= clk-starfive-jh7110-sys.o
 obj-$(CONFIG_CLK_STARFIVE_JH7110_AON)	+= clk-starfive-jh7110-aon.o
+obj-$(CONFIG_CLK_STARFIVE_JH7110_STG)	+= clk-starfive-jh7110-stg.o
diff --git a/drivers/clk/starfive/clk-starfive-jh7110-stg.c b/drivers/clk/starfive/clk-starfive-jh7110-stg.c
new file mode 100644
index 000000000000..dafcb7190592
--- /dev/null
+++ b/drivers/clk/starfive/clk-starfive-jh7110-stg.c
@@ -0,0 +1,173 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * StarFive JH7110 System-Top-Group Clock Driver
+ *
+ * Copyright (C) 2022 Emil Renner Berthing <kernel@esmil.dk>
+ * Copyright (C) 2022 StarFive Technology Co., Ltd.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+
+#include <dt-bindings/clock/starfive,jh7110-crg.h>
+
+#include "clk-starfive-jh7110.h"
+
+/* external clocks */
+#define JH7110_STGCLK_OSC			(JH7110_STGCLK_END + 0)
+#define JH7110_STGCLK_HIFI4_CORE		(JH7110_STGCLK_END + 1)
+#define JH7110_STGCLK_STG_AXIAHB		(JH7110_STGCLK_END + 2)
+#define JH7110_STGCLK_USB_125M			(JH7110_STGCLK_END + 3)
+#define JH7110_STGCLK_CPU_BUS			(JH7110_STGCLK_END + 4)
+#define JH7110_STGCLK_HIFI4_AXI			(JH7110_STGCLK_END + 5)
+#define JH7110_STGCLK_NOCSTG_BUS		(JH7110_STGCLK_END + 6)
+#define JH7110_STGCLK_APB_BUS			(JH7110_STGCLK_END + 7)
+#define JH7110_STGCLK_EXT_END			(JH7110_STGCLK_END + 8)
+
+static const struct jh71x0_clk_data jh7110_stgclk_data[] = {
+	/* hifi4 */
+	JH71X0_GATE(JH7110_STGCLK_HIFI4_CLK_CORE, "hifi4_clk_core", 0,
+		    JH7110_STGCLK_HIFI4_CORE),
+	/* usb */
+	JH71X0_GATE(JH7110_STGCLK_USB0_APB, "usb0_apb", 0, JH7110_STGCLK_APB_BUS),
+	JH71X0_GATE(JH7110_STGCLK_USB0_UTMI_APB, "usb0_utmi_apb", 0, JH7110_STGCLK_APB_BUS),
+	JH71X0_GATE(JH7110_STGCLK_USB0_AXI, "usb0_axi", 0, JH7110_STGCLK_STG_AXIAHB),
+	JH71X0_GDIV(JH7110_STGCLK_USB0_LPM, "usb0_lpm", 0, 2, JH7110_STGCLK_OSC),
+	JH71X0_GDIV(JH7110_STGCLK_USB0_STB, "usb0_stb", 0, 4, JH7110_STGCLK_OSC),
+	JH71X0_GATE(JH7110_STGCLK_USB0_APP_125, "usb0_app_125", 0, JH7110_STGCLK_USB_125M),
+	JH71X0__DIV(JH7110_STGCLK_USB0_REFCLK, "usb0_refclk", 2, JH7110_STGCLK_OSC),
+	/* pci-e */
+	JH71X0_GATE(JH7110_STGCLK_PCIE0_AXI_MST0, "pcie0_axi_mst0", 0,
+		    JH7110_STGCLK_STG_AXIAHB),
+	JH71X0_GATE(JH7110_STGCLK_PCIE0_APB, "pcie0_apb", 0, JH7110_STGCLK_APB_BUS),
+	JH71X0_GATE(JH7110_STGCLK_PCIE0_TL, "pcie0_tl", 0, JH7110_STGCLK_STG_AXIAHB),
+	JH71X0_GATE(JH7110_STGCLK_PCIE1_AXI_MST0, "pcie1_axi_mst0", 0,
+		    JH7110_STGCLK_STG_AXIAHB),
+	JH71X0_GATE(JH7110_STGCLK_PCIE1_APB, "pcie1_apb", 0, JH7110_STGCLK_APB_BUS),
+	JH71X0_GATE(JH7110_STGCLK_PCIE1_TL, "pcie1_tl", 0, JH7110_STGCLK_STG_AXIAHB),
+	JH71X0_GATE(JH7110_STGCLK_PCIE_SLV_MAIN, "pcie_slv_main", CLK_IS_CRITICAL,
+		    JH7110_STGCLK_STG_AXIAHB),
+	/* security */
+	JH71X0_GATE(JH7110_STGCLK_SEC_AHB, "sec_ahb", 0, JH7110_STGCLK_STG_AXIAHB),
+	JH71X0_GATE(JH7110_STGCLK_SEC_MISC_AHB, "sec_misc_ahb", 0, JH7110_STGCLK_STG_AXIAHB),
+	/* stg mtrx */
+	JH71X0_GATE(JH7110_STGCLK_GRP0_MAIN, "mtrx_grp0_main", CLK_IS_CRITICAL,
+		    JH7110_STGCLK_CPU_BUS),
+	JH71X0_GATE(JH7110_STGCLK_GRP0_BUS, "mtrx_grp0_bus", CLK_IS_CRITICAL,
+		    JH7110_STGCLK_NOCSTG_BUS),
+	JH71X0_GATE(JH7110_STGCLK_GRP0_STG, "mtrx_grp0_stg", CLK_IS_CRITICAL,
+		    JH7110_STGCLK_STG_AXIAHB),
+	JH71X0_GATE(JH7110_STGCLK_GRP1_MAIN, "mtrx_grp1_main", CLK_IS_CRITICAL,
+		    JH7110_STGCLK_CPU_BUS),
+	JH71X0_GATE(JH7110_STGCLK_GRP1_BUS, "mtrx_grp1_bus", CLK_IS_CRITICAL,
+		    JH7110_STGCLK_NOCSTG_BUS),
+	JH71X0_GATE(JH7110_STGCLK_GRP1_STG, "mtrx_grp1_stg", CLK_IS_CRITICAL,
+		    JH7110_STGCLK_STG_AXIAHB),
+	JH71X0_GATE(JH7110_STGCLK_GRP1_HIFI, "mtrx_grp1_hifi", CLK_IS_CRITICAL,
+		    JH7110_STGCLK_HIFI4_AXI),
+	/* e24_rvpi */
+	JH71X0_GDIV(JH7110_STGCLK_E2_RTC, "e2_rtc", 0, 24, JH7110_STGCLK_OSC),
+	JH71X0_GATE(JH7110_STGCLK_E2_CORE, "e2_core", 0, JH7110_STGCLK_STG_AXIAHB),
+	JH71X0_GATE(JH7110_STGCLK_E2_DBG, "e2_dbg", 0, JH7110_STGCLK_STG_AXIAHB),
+	/* dw_sgdma1p */
+	JH71X0_GATE(JH7110_STGCLK_DMA1P_AXI, "dma1p_axi", 0, JH7110_STGCLK_STG_AXIAHB),
+	JH71X0_GATE(JH7110_STGCLK_DMA1P_AHB, "dma1p_ahb", 0, JH7110_STGCLK_STG_AXIAHB),
+};
+
+static struct clk_hw *jh7110_stgclk_get(struct of_phandle_args *clkspec, void *data)
+{
+	struct jh71x0_clk_priv *priv = data;
+	unsigned int idx = clkspec->args[0];
+
+	if (idx < JH7110_STGCLK_END)
+		return &priv->reg[idx].hw;
+
+	return ERR_PTR(-EINVAL);
+}
+
+static int jh7110_stgcrg_probe(struct platform_device *pdev)
+{
+	struct jh71x0_clk_priv *priv;
+	unsigned int idx;
+	int ret;
+
+	priv = devm_kzalloc(&pdev->dev, struct_size(priv, reg, JH7110_STGCLK_END),
+			    GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	spin_lock_init(&priv->rmw_lock);
+	priv->dev = &pdev->dev;
+	priv->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(priv->base))
+		return PTR_ERR(priv->base);
+
+	for (idx = 0; idx < JH7110_STGCLK_END; idx++) {
+		u32 max = jh7110_stgclk_data[idx].max;
+		struct clk_parent_data parents[4] = {};
+		struct clk_init_data init = {
+			.name = jh7110_stgclk_data[idx].name,
+			.ops = starfive_jh71x0_clk_ops(max),
+			.parent_data = parents,
+			.num_parents =
+				((max & JH71X0_CLK_MUX_MASK) >> JH71X0_CLK_MUX_SHIFT) + 1,
+			.flags = jh7110_stgclk_data[idx].flags,
+		};
+		struct jh71x0_clk *clk = &priv->reg[idx];
+		const char *fw_name[JH7110_STGCLK_EXT_END - JH7110_STGCLK_END] = {
+			"osc",
+			"hifi4_core",
+			"stg_axiahb",
+			"usb_125m",
+			"cpu_bus",
+			"hifi4_axi",
+			"nocstg_bus",
+			"apb_bus"
+		};
+		unsigned int i;
+
+		for (i = 0; i < init.num_parents; i++) {
+			unsigned int pidx = jh7110_stgclk_data[idx].parents[i];
+
+			if (pidx < JH7110_STGCLK_END)
+				parents[i].hw = &priv->reg[pidx].hw;
+			else if (pidx < JH7110_STGCLK_EXT_END)
+				parents[i].fw_name = fw_name[pidx - JH7110_STGCLK_END];
+		}
+
+		clk->hw.init = &init;
+		clk->idx = idx;
+		clk->max_div = max & JH71X0_CLK_DIV_MASK;
+
+		ret = devm_clk_hw_register(&pdev->dev, &clk->hw);
+		if (ret)
+			return ret;
+	}
+
+	ret = devm_of_clk_add_hw_provider(&pdev->dev, jh7110_stgclk_get, priv);
+	if (ret)
+		return ret;
+
+	return jh7110_reset_controller_register(priv, "rst-stg", 2);
+}
+
+static const struct of_device_id jh7110_stgcrg_match[] = {
+	{ .compatible = "starfive,jh7110-stgcrg" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, jh7110_stgcrg_match);
+
+static struct platform_driver jh7110_stgcrg_driver = {
+	.probe = jh7110_stgcrg_probe,
+	.driver = {
+		.name = "clk-starfive-jh7110-stg",
+		.of_match_table = jh7110_stgcrg_match,
+	},
+};
+module_platform_driver(jh7110_stgcrg_driver);
+
+MODULE_AUTHOR("Xingyu Wu <xingyu.wu@starfivetech.com>");
+MODULE_AUTHOR("Emil Renner Berthing <kernel@esmil.dk>");
+MODULE_DESCRIPTION("StarFive JH7110 System-Top-Group clock driver");
+MODULE_LICENSE("GPL");
-- 
2.25.1

Re: [PATCH v7 2/9] clk: starfive: Add StarFive JH7110 System-Top-Group clock driver

[Emil Renner Berthing]

On Wed, 12 Jul 2023 at 11:22, Xingyu Wu <xingyu.wu@starfivetech.com> wrote:
>
> From: Emil Renner Berthing <emil.renner.berthing@canonical.com>
>
> Add driver for the StarFive JH7110 System-Top-Group clock controller.
>
> Reviewed-by: Hal Feng <hal.feng@starfivetech.com>

Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>

> Co-developed-by: Xingyu Wu <xingyu.wu@starfivetech.com>
> Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
> Signed-off-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
> ---
>  drivers/clk/starfive/Kconfig                  |   8 +
>  drivers/clk/starfive/Makefile                 |   1 +
>  .../clk/starfive/clk-starfive-jh7110-stg.c    | 173 ++++++++++++++++++
>  3 files changed, 182 insertions(+)
>  create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-stg.c
>
> diff --git a/drivers/clk/starfive/Kconfig b/drivers/clk/starfive/Kconfig
> index 5d2333106f13..eb1023b5e95a 100644
> --- a/drivers/clk/starfive/Kconfig
> +++ b/drivers/clk/starfive/Kconfig
> @@ -39,3 +39,11 @@ config CLK_STARFIVE_JH7110_AON
>         help
>           Say yes here to support the always-on clock controller on the
>           StarFive JH7110 SoC.
> +
> +config CLK_STARFIVE_JH7110_STG
> +       tristate "StarFive JH7110 System-Top-Group clock support"
> +       depends on CLK_STARFIVE_JH7110_SYS
> +       default m if ARCH_STARFIVE
> +       help
> +         Say yes here to support the System-Top-Group clock controller
> +         on the StarFive JH7110 SoC.
> diff --git a/drivers/clk/starfive/Makefile b/drivers/clk/starfive/Makefile
> index f3df7d957b1e..b81e97ee2659 100644
> --- a/drivers/clk/starfive/Makefile
> +++ b/drivers/clk/starfive/Makefile
> @@ -6,3 +6,4 @@ obj-$(CONFIG_CLK_STARFIVE_JH7100_AUDIO) += clk-starfive-jh7100-audio.o
>
>  obj-$(CONFIG_CLK_STARFIVE_JH7110_SYS)  += clk-starfive-jh7110-sys.o
>  obj-$(CONFIG_CLK_STARFIVE_JH7110_AON)  += clk-starfive-jh7110-aon.o
> +obj-$(CONFIG_CLK_STARFIVE_JH7110_STG)  += clk-starfive-jh7110-stg.o
> diff --git a/drivers/clk/starfive/clk-starfive-jh7110-stg.c b/drivers/clk/starfive/clk-starfive-jh7110-stg.c
> new file mode 100644
> index 000000000000..dafcb7190592
> --- /dev/null
> +++ b/drivers/clk/starfive/clk-starfive-jh7110-stg.c
> @@ -0,0 +1,173 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * StarFive JH7110 System-Top-Group Clock Driver
> + *
> + * Copyright (C) 2022 Emil Renner Berthing <kernel@esmil.dk>
> + * Copyright (C) 2022 StarFive Technology Co., Ltd.
> + */
> +
> +#include <linux/clk-provider.h>
> +#include <linux/io.h>
> +#include <linux/platform_device.h>
> +
> +#include <dt-bindings/clock/starfive,jh7110-crg.h>
> +
> +#include "clk-starfive-jh7110.h"
> +
> +/* external clocks */
> +#define JH7110_STGCLK_OSC                      (JH7110_STGCLK_END + 0)
> +#define JH7110_STGCLK_HIFI4_CORE               (JH7110_STGCLK_END + 1)
> +#define JH7110_STGCLK_STG_AXIAHB               (JH7110_STGCLK_END + 2)
> +#define JH7110_STGCLK_USB_125M                 (JH7110_STGCLK_END + 3)
> +#define JH7110_STGCLK_CPU_BUS                  (JH7110_STGCLK_END + 4)
> +#define JH7110_STGCLK_HIFI4_AXI                        (JH7110_STGCLK_END + 5)
> +#define JH7110_STGCLK_NOCSTG_BUS               (JH7110_STGCLK_END + 6)
> +#define JH7110_STGCLK_APB_BUS                  (JH7110_STGCLK_END + 7)
> +#define JH7110_STGCLK_EXT_END                  (JH7110_STGCLK_END + 8)
> +
> +static const struct jh71x0_clk_data jh7110_stgclk_data[] = {
> +       /* hifi4 */
> +       JH71X0_GATE(JH7110_STGCLK_HIFI4_CLK_CORE, "hifi4_clk_core", 0,
> +                   JH7110_STGCLK_HIFI4_CORE),
> +       /* usb */
> +       JH71X0_GATE(JH7110_STGCLK_USB0_APB, "usb0_apb", 0, JH7110_STGCLK_APB_BUS),
> +       JH71X0_GATE(JH7110_STGCLK_USB0_UTMI_APB, "usb0_utmi_apb", 0, JH7110_STGCLK_APB_BUS),
> +       JH71X0_GATE(JH7110_STGCLK_USB0_AXI, "usb0_axi", 0, JH7110_STGCLK_STG_AXIAHB),
> +       JH71X0_GDIV(JH7110_STGCLK_USB0_LPM, "usb0_lpm", 0, 2, JH7110_STGCLK_OSC),
> +       JH71X0_GDIV(JH7110_STGCLK_USB0_STB, "usb0_stb", 0, 4, JH7110_STGCLK_OSC),
> +       JH71X0_GATE(JH7110_STGCLK_USB0_APP_125, "usb0_app_125", 0, JH7110_STGCLK_USB_125M),
> +       JH71X0__DIV(JH7110_STGCLK_USB0_REFCLK, "usb0_refclk", 2, JH7110_STGCLK_OSC),
> +       /* pci-e */
> +       JH71X0_GATE(JH7110_STGCLK_PCIE0_AXI_MST0, "pcie0_axi_mst0", 0,
> +                   JH7110_STGCLK_STG_AXIAHB),
> +       JH71X0_GATE(JH7110_STGCLK_PCIE0_APB, "pcie0_apb", 0, JH7110_STGCLK_APB_BUS),
> +       JH71X0_GATE(JH7110_STGCLK_PCIE0_TL, "pcie0_tl", 0, JH7110_STGCLK_STG_AXIAHB),
> +       JH71X0_GATE(JH7110_STGCLK_PCIE1_AXI_MST0, "pcie1_axi_mst0", 0,
> +                   JH7110_STGCLK_STG_AXIAHB),
> +       JH71X0_GATE(JH7110_STGCLK_PCIE1_APB, "pcie1_apb", 0, JH7110_STGCLK_APB_BUS),
> +       JH71X0_GATE(JH7110_STGCLK_PCIE1_TL, "pcie1_tl", 0, JH7110_STGCLK_STG_AXIAHB),
> +       JH71X0_GATE(JH7110_STGCLK_PCIE_SLV_MAIN, "pcie_slv_main", CLK_IS_CRITICAL,
> +                   JH7110_STGCLK_STG_AXIAHB),
> +       /* security */
> +       JH71X0_GATE(JH7110_STGCLK_SEC_AHB, "sec_ahb", 0, JH7110_STGCLK_STG_AXIAHB),
> +       JH71X0_GATE(JH7110_STGCLK_SEC_MISC_AHB, "sec_misc_ahb", 0, JH7110_STGCLK_STG_AXIAHB),
> +       /* stg mtrx */
> +       JH71X0_GATE(JH7110_STGCLK_GRP0_MAIN, "mtrx_grp0_main", CLK_IS_CRITICAL,
> +                   JH7110_STGCLK_CPU_BUS),
> +       JH71X0_GATE(JH7110_STGCLK_GRP0_BUS, "mtrx_grp0_bus", CLK_IS_CRITICAL,
> +                   JH7110_STGCLK_NOCSTG_BUS),
> +       JH71X0_GATE(JH7110_STGCLK_GRP0_STG, "mtrx_grp0_stg", CLK_IS_CRITICAL,
> +                   JH7110_STGCLK_STG_AXIAHB),
> +       JH71X0_GATE(JH7110_STGCLK_GRP1_MAIN, "mtrx_grp1_main", CLK_IS_CRITICAL,
> +                   JH7110_STGCLK_CPU_BUS),
> +       JH71X0_GATE(JH7110_STGCLK_GRP1_BUS, "mtrx_grp1_bus", CLK_IS_CRITICAL,
> +                   JH7110_STGCLK_NOCSTG_BUS),
> +       JH71X0_GATE(JH7110_STGCLK_GRP1_STG, "mtrx_grp1_stg", CLK_IS_CRITICAL,
> +                   JH7110_STGCLK_STG_AXIAHB),
> +       JH71X0_GATE(JH7110_STGCLK_GRP1_HIFI, "mtrx_grp1_hifi", CLK_IS_CRITICAL,
> +                   JH7110_STGCLK_HIFI4_AXI),
> +       /* e24_rvpi */
> +       JH71X0_GDIV(JH7110_STGCLK_E2_RTC, "e2_rtc", 0, 24, JH7110_STGCLK_OSC),
> +       JH71X0_GATE(JH7110_STGCLK_E2_CORE, "e2_core", 0, JH7110_STGCLK_STG_AXIAHB),
> +       JH71X0_GATE(JH7110_STGCLK_E2_DBG, "e2_dbg", 0, JH7110_STGCLK_STG_AXIAHB),
> +       /* dw_sgdma1p */
> +       JH71X0_GATE(JH7110_STGCLK_DMA1P_AXI, "dma1p_axi", 0, JH7110_STGCLK_STG_AXIAHB),
> +       JH71X0_GATE(JH7110_STGCLK_DMA1P_AHB, "dma1p_ahb", 0, JH7110_STGCLK_STG_AXIAHB),
> +};
> +
> +static struct clk_hw *jh7110_stgclk_get(struct of_phandle_args *clkspec, void *data)
> +{
> +       struct jh71x0_clk_priv *priv = data;
> +       unsigned int idx = clkspec->args[0];
> +
> +       if (idx < JH7110_STGCLK_END)
> +               return &priv->reg[idx].hw;
> +
> +       return ERR_PTR(-EINVAL);
> +}
> +
> +static int jh7110_stgcrg_probe(struct platform_device *pdev)
> +{
> +       struct jh71x0_clk_priv *priv;
> +       unsigned int idx;
> +       int ret;
> +
> +       priv = devm_kzalloc(&pdev->dev, struct_size(priv, reg, JH7110_STGCLK_END),
> +                           GFP_KERNEL);
> +       if (!priv)
> +               return -ENOMEM;
> +
> +       spin_lock_init(&priv->rmw_lock);
> +       priv->dev = &pdev->dev;
> +       priv->base = devm_platform_ioremap_resource(pdev, 0);
> +       if (IS_ERR(priv->base))
> +               return PTR_ERR(priv->base);
> +
> +       for (idx = 0; idx < JH7110_STGCLK_END; idx++) {
> +               u32 max = jh7110_stgclk_data[idx].max;
> +               struct clk_parent_data parents[4] = {};
> +               struct clk_init_data init = {
> +                       .name = jh7110_stgclk_data[idx].name,
> +                       .ops = starfive_jh71x0_clk_ops(max),
> +                       .parent_data = parents,
> +                       .num_parents =
> +                               ((max & JH71X0_CLK_MUX_MASK) >> JH71X0_CLK_MUX_SHIFT) + 1,
> +                       .flags = jh7110_stgclk_data[idx].flags,
> +               };
> +               struct jh71x0_clk *clk = &priv->reg[idx];
> +               const char *fw_name[JH7110_STGCLK_EXT_END - JH7110_STGCLK_END] = {
> +                       "osc",
> +                       "hifi4_core",
> +                       "stg_axiahb",
> +                       "usb_125m",
> +                       "cpu_bus",
> +                       "hifi4_axi",
> +                       "nocstg_bus",
> +                       "apb_bus"
> +               };
> +               unsigned int i;
> +
> +               for (i = 0; i < init.num_parents; i++) {
> +                       unsigned int pidx = jh7110_stgclk_data[idx].parents[i];
> +
> +                       if (pidx < JH7110_STGCLK_END)
> +                               parents[i].hw = &priv->reg[pidx].hw;
> +                       else if (pidx < JH7110_STGCLK_EXT_END)
> +                               parents[i].fw_name = fw_name[pidx - JH7110_STGCLK_END];
> +               }
> +
> +               clk->hw.init = &init;
> +               clk->idx = idx;
> +               clk->max_div = max & JH71X0_CLK_DIV_MASK;
> +
> +               ret = devm_clk_hw_register(&pdev->dev, &clk->hw);
> +               if (ret)
> +                       return ret;
> +       }
> +
> +       ret = devm_of_clk_add_hw_provider(&pdev->dev, jh7110_stgclk_get, priv);
> +       if (ret)
> +               return ret;
> +
> +       return jh7110_reset_controller_register(priv, "rst-stg", 2);
> +}
> +
> +static const struct of_device_id jh7110_stgcrg_match[] = {
> +       { .compatible = "starfive,jh7110-stgcrg" },
> +       { /* sentinel */ }
> +};
> +MODULE_DEVICE_TABLE(of, jh7110_stgcrg_match);
> +
> +static struct platform_driver jh7110_stgcrg_driver = {
> +       .probe = jh7110_stgcrg_probe,
> +       .driver = {
> +               .name = "clk-starfive-jh7110-stg",
> +               .of_match_table = jh7110_stgcrg_match,
> +       },
> +};
> +module_platform_driver(jh7110_stgcrg_driver);
> +
> +MODULE_AUTHOR("Xingyu Wu <xingyu.wu@starfivetech.com>");
> +MODULE_AUTHOR("Emil Renner Berthing <kernel@esmil.dk>");
> +MODULE_DESCRIPTION("StarFive JH7110 System-Top-Group clock driver");
> +MODULE_LICENSE("GPL");
> --
> 2.25.1
>
>
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv

Re: [PATCH v7 2/9] clk: starfive: Add StarFive JH7110 System-Top-Group clock driver

[Xingyu Wu]

On 2023/7/13 1:50, Emil Renner Berthing wrote:
> On Wed, 12 Jul 2023 at 11:22, Xingyu Wu <xingyu.wu@starfivetech.com> wrote:
>>
>> From: Emil Renner Berthing <emil.renner.berthing@canonical.com>
>>
>> Add driver for the StarFive JH7110 System-Top-Group clock controller.
>>
>> Reviewed-by: Hal Feng <hal.feng@starfivetech.com>
> 
> Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>

Hi Emil,

Thanks. I already added you as the commit author of this patch, so I will not
add the Reviewed-by tag for you.

Best regards,
Xingyu Wu

> 
>> Co-developed-by: Xingyu Wu <xingyu.wu@starfivetech.com>
>> Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
>> Signed-off-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
>> ---
>>  drivers/clk/starfive/Kconfig                  |   8 +
>>  drivers/clk/starfive/Makefile                 |   1 +
>>  .../clk/starfive/clk-starfive-jh7110-stg.c    | 173 ++++++++++++++++++
>>  3 files changed, 182 insertions(+)
>>  create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-stg.c
>>
>> diff --git a/drivers/clk/starfive/Kconfig b/drivers/clk/starfive/Kconfig
>> index 5d2333106f13..eb1023b5e95a 100644
>> --- a/drivers/clk/starfive/Kconfig
>> +++ b/drivers/clk/starfive/Kconfig
>> @@ -39,3 +39,11 @@ config CLK_STARFIVE_JH7110_AON
>>         help
>>           Say yes here to support the always-on clock controller on the
>>           StarFive JH7110 SoC.
>> +
>> +config CLK_STARFIVE_JH7110_STG
>> +       tristate "StarFive JH7110 System-Top-Group clock support"
>> +       depends on CLK_STARFIVE_JH7110_SYS
>> +       default m if ARCH_STARFIVE
>> +       help
>> +         Say yes here to support the System-Top-Group clock controller
>> +         on the StarFive JH7110 SoC.
>> diff --git a/drivers/clk/starfive/Makefile b/drivers/clk/starfive/Makefile
>> index f3df7d957b1e..b81e97ee2659 100644
>> --- a/drivers/clk/starfive/Makefile
>> +++ b/drivers/clk/starfive/Makefile
>> @@ -6,3 +6,4 @@ obj-$(CONFIG_CLK_STARFIVE_JH7100_AUDIO) += clk-starfive-jh7100-audio.o
>>
>>  obj-$(CONFIG_CLK_STARFIVE_JH7110_SYS)  += clk-starfive-jh7110-sys.o
>>  obj-$(CONFIG_CLK_STARFIVE_JH7110_AON)  += clk-starfive-jh7110-aon.o
>> +obj-$(CONFIG_CLK_STARFIVE_JH7110_STG)  += clk-starfive-jh7110-stg.o
>> diff --git a/drivers/clk/starfive/clk-starfive-jh7110-stg.c b/drivers/clk/starfive/clk-starfive-jh7110-stg.c
>> new file mode 100644
>> index 000000000000..dafcb7190592
>> --- /dev/null
>> +++ b/drivers/clk/starfive/clk-starfive-jh7110-stg.c
>> @@ -0,0 +1,173 @@
>> +// SPDX-License-Identifier: GPL-2.0
>> +/*
>> + * StarFive JH7110 System-Top-Group Clock Driver
>> + *
>> + * Copyright (C) 2022 Emil Renner Berthing <kernel@esmil.dk>
>> + * Copyright (C) 2022 StarFive Technology Co., Ltd.
>> + */
>> +
>> +#include <linux/clk-provider.h>
>> +#include <linux/io.h>
>> +#include <linux/platform_device.h>
>> +
>> +#include <dt-bindings/clock/starfive,jh7110-crg.h>
>> +
>> +#include "clk-starfive-jh7110.h"
>> +
>> +/* external clocks */
>> +#define JH7110_STGCLK_OSC                      (JH7110_STGCLK_END + 0)
>> +#define JH7110_STGCLK_HIFI4_CORE               (JH7110_STGCLK_END + 1)
>> +#define JH7110_STGCLK_STG_AXIAHB               (JH7110_STGCLK_END + 2)
>> +#define JH7110_STGCLK_USB_125M                 (JH7110_STGCLK_END + 3)
>> +#define JH7110_STGCLK_CPU_BUS                  (JH7110_STGCLK_END + 4)
>> +#define JH7110_STGCLK_HIFI4_AXI                        (JH7110_STGCLK_END + 5)
>> +#define JH7110_STGCLK_NOCSTG_BUS               (JH7110_STGCLK_END + 6)
>> +#define JH7110_STGCLK_APB_BUS                  (JH7110_STGCLK_END + 7)
>> +#define JH7110_STGCLK_EXT_END                  (JH7110_STGCLK_END + 8)
>> +
>> +static const struct jh71x0_clk_data jh7110_stgclk_data[] = {
>> +       /* hifi4 */
>> +       JH71X0_GATE(JH7110_STGCLK_HIFI4_CLK_CORE, "hifi4_clk_core", 0,
>> +                   JH7110_STGCLK_HIFI4_CORE),
>> +       /* usb */
>> +       JH71X0_GATE(JH7110_STGCLK_USB0_APB, "usb0_apb", 0, JH7110_STGCLK_APB_BUS),
>> +       JH71X0_GATE(JH7110_STGCLK_USB0_UTMI_APB, "usb0_utmi_apb", 0, JH7110_STGCLK_APB_BUS),
>> +       JH71X0_GATE(JH7110_STGCLK_USB0_AXI, "usb0_axi", 0, JH7110_STGCLK_STG_AXIAHB),
>> +       JH71X0_GDIV(JH7110_STGCLK_USB0_LPM, "usb0_lpm", 0, 2, JH7110_STGCLK_OSC),
>> +       JH71X0_GDIV(JH7110_STGCLK_USB0_STB, "usb0_stb", 0, 4, JH7110_STGCLK_OSC),
>> +       JH71X0_GATE(JH7110_STGCLK_USB0_APP_125, "usb0_app_125", 0, JH7110_STGCLK_USB_125M),
>> +       JH71X0__DIV(JH7110_STGCLK_USB0_REFCLK, "usb0_refclk", 2, JH7110_STGCLK_OSC),
>> +       /* pci-e */
>> +       JH71X0_GATE(JH7110_STGCLK_PCIE0_AXI_MST0, "pcie0_axi_mst0", 0,
>> +                   JH7110_STGCLK_STG_AXIAHB),
>> +       JH71X0_GATE(JH7110_STGCLK_PCIE0_APB, "pcie0_apb", 0, JH7110_STGCLK_APB_BUS),
>> +       JH71X0_GATE(JH7110_STGCLK_PCIE0_TL, "pcie0_tl", 0, JH7110_STGCLK_STG_AXIAHB),
>> +       JH71X0_GATE(JH7110_STGCLK_PCIE1_AXI_MST0, "pcie1_axi_mst0", 0,
>> +                   JH7110_STGCLK_STG_AXIAHB),
>> +       JH71X0_GATE(JH7110_STGCLK_PCIE1_APB, "pcie1_apb", 0, JH7110_STGCLK_APB_BUS),
>> +       JH71X0_GATE(JH7110_STGCLK_PCIE1_TL, "pcie1_tl", 0, JH7110_STGCLK_STG_AXIAHB),
>> +       JH71X0_GATE(JH7110_STGCLK_PCIE_SLV_MAIN, "pcie_slv_main", CLK_IS_CRITICAL,
>> +                   JH7110_STGCLK_STG_AXIAHB),
>> +       /* security */
>> +       JH71X0_GATE(JH7110_STGCLK_SEC_AHB, "sec_ahb", 0, JH7110_STGCLK_STG_AXIAHB),
>> +       JH71X0_GATE(JH7110_STGCLK_SEC_MISC_AHB, "sec_misc_ahb", 0, JH7110_STGCLK_STG_AXIAHB),
>> +       /* stg mtrx */
>> +       JH71X0_GATE(JH7110_STGCLK_GRP0_MAIN, "mtrx_grp0_main", CLK_IS_CRITICAL,
>> +                   JH7110_STGCLK_CPU_BUS),
>> +       JH71X0_GATE(JH7110_STGCLK_GRP0_BUS, "mtrx_grp0_bus", CLK_IS_CRITICAL,
>> +                   JH7110_STGCLK_NOCSTG_BUS),
>> +       JH71X0_GATE(JH7110_STGCLK_GRP0_STG, "mtrx_grp0_stg", CLK_IS_CRITICAL,
>> +                   JH7110_STGCLK_STG_AXIAHB),
>> +       JH71X0_GATE(JH7110_STGCLK_GRP1_MAIN, "mtrx_grp1_main", CLK_IS_CRITICAL,
>> +                   JH7110_STGCLK_CPU_BUS),
>> +       JH71X0_GATE(JH7110_STGCLK_GRP1_BUS, "mtrx_grp1_bus", CLK_IS_CRITICAL,
>> +                   JH7110_STGCLK_NOCSTG_BUS),
>> +       JH71X0_GATE(JH7110_STGCLK_GRP1_STG, "mtrx_grp1_stg", CLK_IS_CRITICAL,
>> +                   JH7110_STGCLK_STG_AXIAHB),
>> +       JH71X0_GATE(JH7110_STGCLK_GRP1_HIFI, "mtrx_grp1_hifi", CLK_IS_CRITICAL,
>> +                   JH7110_STGCLK_HIFI4_AXI),
>> +       /* e24_rvpi */
>> +       JH71X0_GDIV(JH7110_STGCLK_E2_RTC, "e2_rtc", 0, 24, JH7110_STGCLK_OSC),
>> +       JH71X0_GATE(JH7110_STGCLK_E2_CORE, "e2_core", 0, JH7110_STGCLK_STG_AXIAHB),
>> +       JH71X0_GATE(JH7110_STGCLK_E2_DBG, "e2_dbg", 0, JH7110_STGCLK_STG_AXIAHB),
>> +       /* dw_sgdma1p */
>> +       JH71X0_GATE(JH7110_STGCLK_DMA1P_AXI, "dma1p_axi", 0, JH7110_STGCLK_STG_AXIAHB),
>> +       JH71X0_GATE(JH7110_STGCLK_DMA1P_AHB, "dma1p_ahb", 0, JH7110_STGCLK_STG_AXIAHB),
>> +};
>> +
>> +static struct clk_hw *jh7110_stgclk_get(struct of_phandle_args *clkspec, void *data)
>> +{
>> +       struct jh71x0_clk_priv *priv = data;
>> +       unsigned int idx = clkspec->args[0];
>> +
>> +       if (idx < JH7110_STGCLK_END)
>> +               return &priv->reg[idx].hw;
>> +
>> +       return ERR_PTR(-EINVAL);
>> +}
>> +
>> +static int jh7110_stgcrg_probe(struct platform_device *pdev)
>> +{
>> +       struct jh71x0_clk_priv *priv;
>> +       unsigned int idx;
>> +       int ret;
>> +
>> +       priv = devm_kzalloc(&pdev->dev, struct_size(priv, reg, JH7110_STGCLK_END),
>> +                           GFP_KERNEL);
>> +       if (!priv)
>> +               return -ENOMEM;
>> +
>> +       spin_lock_init(&priv->rmw_lock);
>> +       priv->dev = &pdev->dev;
>> +       priv->base = devm_platform_ioremap_resource(pdev, 0);
>> +       if (IS_ERR(priv->base))
>> +               return PTR_ERR(priv->base);
>> +
>> +       for (idx = 0; idx < JH7110_STGCLK_END; idx++) {
>> +               u32 max = jh7110_stgclk_data[idx].max;
>> +               struct clk_parent_data parents[4] = {};
>> +               struct clk_init_data init = {
>> +                       .name = jh7110_stgclk_data[idx].name,
>> +                       .ops = starfive_jh71x0_clk_ops(max),
>> +                       .parent_data = parents,
>> +                       .num_parents =
>> +                               ((max & JH71X0_CLK_MUX_MASK) >> JH71X0_CLK_MUX_SHIFT) + 1,
>> +                       .flags = jh7110_stgclk_data[idx].flags,
>> +               };
>> +               struct jh71x0_clk *clk = &priv->reg[idx];
>> +               const char *fw_name[JH7110_STGCLK_EXT_END - JH7110_STGCLK_END] = {
>> +                       "osc",
>> +                       "hifi4_core",
>> +                       "stg_axiahb",
>> +                       "usb_125m",
>> +                       "cpu_bus",
>> +                       "hifi4_axi",
>> +                       "nocstg_bus",
>> +                       "apb_bus"
>> +               };
>> +               unsigned int i;
>> +
>> +               for (i = 0; i < init.num_parents; i++) {
>> +                       unsigned int pidx = jh7110_stgclk_data[idx].parents[i];
>> +
>> +                       if (pidx < JH7110_STGCLK_END)
>> +                               parents[i].hw = &priv->reg[pidx].hw;
>> +                       else if (pidx < JH7110_STGCLK_EXT_END)
>> +                               parents[i].fw_name = fw_name[pidx - JH7110_STGCLK_END];
>> +               }
>> +
>> +               clk->hw.init = &init;
>> +               clk->idx = idx;
>> +               clk->max_div = max & JH71X0_CLK_DIV_MASK;
>> +
>> +               ret = devm_clk_hw_register(&pdev->dev, &clk->hw);
>> +               if (ret)
>> +                       return ret;
>> +       }
>> +
>> +       ret = devm_of_clk_add_hw_provider(&pdev->dev, jh7110_stgclk_get, priv);
>> +       if (ret)
>> +               return ret;
>> +
>> +       return jh7110_reset_controller_register(priv, "rst-stg", 2);
>> +}
>> +
>> +static const struct of_device_id jh7110_stgcrg_match[] = {
>> +       { .compatible = "starfive,jh7110-stgcrg" },
>> +       { /* sentinel */ }
>> +};
>> +MODULE_DEVICE_TABLE(of, jh7110_stgcrg_match);
>> +
>> +static struct platform_driver jh7110_stgcrg_driver = {
>> +       .probe = jh7110_stgcrg_probe,
>> +       .driver = {
>> +               .name = "clk-starfive-jh7110-stg",
>> +               .of_match_table = jh7110_stgcrg_match,
>> +       },
>> +};
>> +module_platform_driver(jh7110_stgcrg_driver);
>> +
>> +MODULE_AUTHOR("Xingyu Wu <xingyu.wu@starfivetech.com>");
>> +MODULE_AUTHOR("Emil Renner Berthing <kernel@esmil.dk>");
>> +MODULE_DESCRIPTION("StarFive JH7110 System-Top-Group clock driver");
>> +MODULE_LICENSE("GPL");
>> --
>> 2.25.1
>>
>>
>> _______________________________________________
>> linux-riscv mailing list
>> linux-riscv@lists.infradead.org
>> http://lists.infradead.org/mailman/listinfo/linux-riscv

Re: [PATCH v7 2/9] clk: starfive: Add StarFive JH7110 System-Top-Group clock driver

[Emil Renner Berthing]

On Thu, 13 Jul 2023 at 11:57, Xingyu Wu <xingyu.wu@starfivetech.com> wrote:
> On 2023/7/13 1:50, Emil Renner Berthing wrote:
> > On Wed, 12 Jul 2023 at 11:22, Xingyu Wu <xingyu.wu@starfivetech.com> wrote:
> >>
> >> From: Emil Renner Berthing <emil.renner.berthing@canonical.com>
> >>
> >> Add driver for the StarFive JH7110 System-Top-Group clock controller.
> >>
> >> Reviewed-by: Hal Feng <hal.feng@starfivetech.com>
> >
> > Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
>
> Hi Emil,
>
> Thanks. I already added you as the commit author of this patch, so I will not
> add the Reviewed-by tag for you.

Yeah, that's fine. I just wanted to let Conor know that I reviewed the
latest changes.

> Best regards,
> Xingyu Wu
>
> >
> >> Co-developed-by: Xingyu Wu <xingyu.wu@starfivetech.com>
> >> Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
> >> Signed-off-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
> >> ---
> >>  drivers/clk/starfive/Kconfig                  |   8 +
> >>  drivers/clk/starfive/Makefile                 |   1 +
> >>  .../clk/starfive/clk-starfive-jh7110-stg.c    | 173 ++++++++++++++++++
> >>  3 files changed, 182 insertions(+)
> >>  create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-stg.c
> >>
> >> diff --git a/drivers/clk/starfive/Kconfig b/drivers/clk/starfive/Kconfig
> >> index 5d2333106f13..eb1023b5e95a 100644
> >> --- a/drivers/clk/starfive/Kconfig
> >> +++ b/drivers/clk/starfive/Kconfig
> >> @@ -39,3 +39,11 @@ config CLK_STARFIVE_JH7110_AON
> >>         help
> >>           Say yes here to support the always-on clock controller on the
> >>           StarFive JH7110 SoC.
> >> +
> >> +config CLK_STARFIVE_JH7110_STG
> >> +       tristate "StarFive JH7110 System-Top-Group clock support"
> >> +       depends on CLK_STARFIVE_JH7110_SYS
> >> +       default m if ARCH_STARFIVE
> >> +       help
> >> +         Say yes here to support the System-Top-Group clock controller
> >> +         on the StarFive JH7110 SoC.
> >> diff --git a/drivers/clk/starfive/Makefile b/drivers/clk/starfive/Makefile
> >> index f3df7d957b1e..b81e97ee2659 100644
> >> --- a/drivers/clk/starfive/Makefile
> >> +++ b/drivers/clk/starfive/Makefile
> >> @@ -6,3 +6,4 @@ obj-$(CONFIG_CLK_STARFIVE_JH7100_AUDIO) += clk-starfive-jh7100-audio.o
> >>
> >>  obj-$(CONFIG_CLK_STARFIVE_JH7110_SYS)  += clk-starfive-jh7110-sys.o
> >>  obj-$(CONFIG_CLK_STARFIVE_JH7110_AON)  += clk-starfive-jh7110-aon.o
> >> +obj-$(CONFIG_CLK_STARFIVE_JH7110_STG)  += clk-starfive-jh7110-stg.o
> >> diff --git a/drivers/clk/starfive/clk-starfive-jh7110-stg.c b/drivers/clk/starfive/clk-starfive-jh7110-stg.c
> >> new file mode 100644
> >> index 000000000000..dafcb7190592
> >> --- /dev/null
> >> +++ b/drivers/clk/starfive/clk-starfive-jh7110-stg.c
> >> @@ -0,0 +1,173 @@
> >> +// SPDX-License-Identifier: GPL-2.0
> >> +/*
> >> + * StarFive JH7110 System-Top-Group Clock Driver
> >> + *
> >> + * Copyright (C) 2022 Emil Renner Berthing <kernel@esmil.dk>
> >> + * Copyright (C) 2022 StarFive Technology Co., Ltd.
> >> + */
> >> +
> >> +#include <linux/clk-provider.h>
> >> +#include <linux/io.h>
> >> +#include <linux/platform_device.h>
> >> +
> >> +#include <dt-bindings/clock/starfive,jh7110-crg.h>
> >> +
> >> +#include "clk-starfive-jh7110.h"
> >> +
> >> +/* external clocks */
> >> +#define JH7110_STGCLK_OSC                      (JH7110_STGCLK_END + 0)
> >> +#define JH7110_STGCLK_HIFI4_CORE               (JH7110_STGCLK_END + 1)
> >> +#define JH7110_STGCLK_STG_AXIAHB               (JH7110_STGCLK_END + 2)
> >> +#define JH7110_STGCLK_USB_125M                 (JH7110_STGCLK_END + 3)
> >> +#define JH7110_STGCLK_CPU_BUS                  (JH7110_STGCLK_END + 4)
> >> +#define JH7110_STGCLK_HIFI4_AXI                        (JH7110_STGCLK_END + 5)
> >> +#define JH7110_STGCLK_NOCSTG_BUS               (JH7110_STGCLK_END + 6)
> >> +#define JH7110_STGCLK_APB_BUS                  (JH7110_STGCLK_END + 7)
> >> +#define JH7110_STGCLK_EXT_END                  (JH7110_STGCLK_END + 8)
> >> +
> >> +static const struct jh71x0_clk_data jh7110_stgclk_data[] = {
> >> +       /* hifi4 */
> >> +       JH71X0_GATE(JH7110_STGCLK_HIFI4_CLK_CORE, "hifi4_clk_core", 0,
> >> +                   JH7110_STGCLK_HIFI4_CORE),
> >> +       /* usb */
> >> +       JH71X0_GATE(JH7110_STGCLK_USB0_APB, "usb0_apb", 0, JH7110_STGCLK_APB_BUS),
> >> +       JH71X0_GATE(JH7110_STGCLK_USB0_UTMI_APB, "usb0_utmi_apb", 0, JH7110_STGCLK_APB_BUS),
> >> +       JH71X0_GATE(JH7110_STGCLK_USB0_AXI, "usb0_axi", 0, JH7110_STGCLK_STG_AXIAHB),
> >> +       JH71X0_GDIV(JH7110_STGCLK_USB0_LPM, "usb0_lpm", 0, 2, JH7110_STGCLK_OSC),
> >> +       JH71X0_GDIV(JH7110_STGCLK_USB0_STB, "usb0_stb", 0, 4, JH7110_STGCLK_OSC),
> >> +       JH71X0_GATE(JH7110_STGCLK_USB0_APP_125, "usb0_app_125", 0, JH7110_STGCLK_USB_125M),
> >> +       JH71X0__DIV(JH7110_STGCLK_USB0_REFCLK, "usb0_refclk", 2, JH7110_STGCLK_OSC),
> >> +       /* pci-e */
> >> +       JH71X0_GATE(JH7110_STGCLK_PCIE0_AXI_MST0, "pcie0_axi_mst0", 0,
> >> +                   JH7110_STGCLK_STG_AXIAHB),
> >> +       JH71X0_GATE(JH7110_STGCLK_PCIE0_APB, "pcie0_apb", 0, JH7110_STGCLK_APB_BUS),
> >> +       JH71X0_GATE(JH7110_STGCLK_PCIE0_TL, "pcie0_tl", 0, JH7110_STGCLK_STG_AXIAHB),
> >> +       JH71X0_GATE(JH7110_STGCLK_PCIE1_AXI_MST0, "pcie1_axi_mst0", 0,
> >> +                   JH7110_STGCLK_STG_AXIAHB),
> >> +       JH71X0_GATE(JH7110_STGCLK_PCIE1_APB, "pcie1_apb", 0, JH7110_STGCLK_APB_BUS),
> >> +       JH71X0_GATE(JH7110_STGCLK_PCIE1_TL, "pcie1_tl", 0, JH7110_STGCLK_STG_AXIAHB),
> >> +       JH71X0_GATE(JH7110_STGCLK_PCIE_SLV_MAIN, "pcie_slv_main", CLK_IS_CRITICAL,
> >> +                   JH7110_STGCLK_STG_AXIAHB),
> >> +       /* security */
> >> +       JH71X0_GATE(JH7110_STGCLK_SEC_AHB, "sec_ahb", 0, JH7110_STGCLK_STG_AXIAHB),
> >> +       JH71X0_GATE(JH7110_STGCLK_SEC_MISC_AHB, "sec_misc_ahb", 0, JH7110_STGCLK_STG_AXIAHB),
> >> +       /* stg mtrx */
> >> +       JH71X0_GATE(JH7110_STGCLK_GRP0_MAIN, "mtrx_grp0_main", CLK_IS_CRITICAL,
> >> +                   JH7110_STGCLK_CPU_BUS),
> >> +       JH71X0_GATE(JH7110_STGCLK_GRP0_BUS, "mtrx_grp0_bus", CLK_IS_CRITICAL,
> >> +                   JH7110_STGCLK_NOCSTG_BUS),
> >> +       JH71X0_GATE(JH7110_STGCLK_GRP0_STG, "mtrx_grp0_stg", CLK_IS_CRITICAL,
> >> +                   JH7110_STGCLK_STG_AXIAHB),
> >> +       JH71X0_GATE(JH7110_STGCLK_GRP1_MAIN, "mtrx_grp1_main", CLK_IS_CRITICAL,
> >> +                   JH7110_STGCLK_CPU_BUS),
> >> +       JH71X0_GATE(JH7110_STGCLK_GRP1_BUS, "mtrx_grp1_bus", CLK_IS_CRITICAL,
> >> +                   JH7110_STGCLK_NOCSTG_BUS),
> >> +       JH71X0_GATE(JH7110_STGCLK_GRP1_STG, "mtrx_grp1_stg", CLK_IS_CRITICAL,
> >> +                   JH7110_STGCLK_STG_AXIAHB),
> >> +       JH71X0_GATE(JH7110_STGCLK_GRP1_HIFI, "mtrx_grp1_hifi", CLK_IS_CRITICAL,
> >> +                   JH7110_STGCLK_HIFI4_AXI),
> >> +       /* e24_rvpi */
> >> +       JH71X0_GDIV(JH7110_STGCLK_E2_RTC, "e2_rtc", 0, 24, JH7110_STGCLK_OSC),
> >> +       JH71X0_GATE(JH7110_STGCLK_E2_CORE, "e2_core", 0, JH7110_STGCLK_STG_AXIAHB),
> >> +       JH71X0_GATE(JH7110_STGCLK_E2_DBG, "e2_dbg", 0, JH7110_STGCLK_STG_AXIAHB),
> >> +       /* dw_sgdma1p */
> >> +       JH71X0_GATE(JH7110_STGCLK_DMA1P_AXI, "dma1p_axi", 0, JH7110_STGCLK_STG_AXIAHB),
> >> +       JH71X0_GATE(JH7110_STGCLK_DMA1P_AHB, "dma1p_ahb", 0, JH7110_STGCLK_STG_AXIAHB),
> >> +};
> >> +
> >> +static struct clk_hw *jh7110_stgclk_get(struct of_phandle_args *clkspec, void *data)
> >> +{
> >> +       struct jh71x0_clk_priv *priv = data;
> >> +       unsigned int idx = clkspec->args[0];
> >> +
> >> +       if (idx < JH7110_STGCLK_END)
> >> +               return &priv->reg[idx].hw;
> >> +
> >> +       return ERR_PTR(-EINVAL);
> >> +}
> >> +
> >> +static int jh7110_stgcrg_probe(struct platform_device *pdev)
> >> +{
> >> +       struct jh71x0_clk_priv *priv;
> >> +       unsigned int idx;
> >> +       int ret;
> >> +
> >> +       priv = devm_kzalloc(&pdev->dev, struct_size(priv, reg, JH7110_STGCLK_END),
> >> +                           GFP_KERNEL);
> >> +       if (!priv)
> >> +               return -ENOMEM;
> >> +
> >> +       spin_lock_init(&priv->rmw_lock);
> >> +       priv->dev = &pdev->dev;
> >> +       priv->base = devm_platform_ioremap_resource(pdev, 0);
> >> +       if (IS_ERR(priv->base))
> >> +               return PTR_ERR(priv->base);
> >> +
> >> +       for (idx = 0; idx < JH7110_STGCLK_END; idx++) {
> >> +               u32 max = jh7110_stgclk_data[idx].max;
> >> +               struct clk_parent_data parents[4] = {};
> >> +               struct clk_init_data init = {
> >> +                       .name = jh7110_stgclk_data[idx].name,
> >> +                       .ops = starfive_jh71x0_clk_ops(max),
> >> +                       .parent_data = parents,
> >> +                       .num_parents =
> >> +                               ((max & JH71X0_CLK_MUX_MASK) >> JH71X0_CLK_MUX_SHIFT) + 1,
> >> +                       .flags = jh7110_stgclk_data[idx].flags,
> >> +               };
> >> +               struct jh71x0_clk *clk = &priv->reg[idx];
> >> +               const char *fw_name[JH7110_STGCLK_EXT_END - JH7110_STGCLK_END] = {
> >> +                       "osc",
> >> +                       "hifi4_core",
> >> +                       "stg_axiahb",
> >> +                       "usb_125m",
> >> +                       "cpu_bus",
> >> +                       "hifi4_axi",
> >> +                       "nocstg_bus",
> >> +                       "apb_bus"
> >> +               };
> >> +               unsigned int i;
> >> +
> >> +               for (i = 0; i < init.num_parents; i++) {
> >> +                       unsigned int pidx = jh7110_stgclk_data[idx].parents[i];
> >> +
> >> +                       if (pidx < JH7110_STGCLK_END)
> >> +                               parents[i].hw = &priv->reg[pidx].hw;
> >> +                       else if (pidx < JH7110_STGCLK_EXT_END)
> >> +                               parents[i].fw_name = fw_name[pidx - JH7110_STGCLK_END];
> >> +               }
> >> +
> >> +               clk->hw.init = &init;
> >> +               clk->idx = idx;
> >> +               clk->max_div = max & JH71X0_CLK_DIV_MASK;
> >> +
> >> +               ret = devm_clk_hw_register(&pdev->dev, &clk->hw);
> >> +               if (ret)
> >> +                       return ret;
> >> +       }
> >> +
> >> +       ret = devm_of_clk_add_hw_provider(&pdev->dev, jh7110_stgclk_get, priv);
> >> +       if (ret)
> >> +               return ret;
> >> +
> >> +       return jh7110_reset_controller_register(priv, "rst-stg", 2);
> >> +}
> >> +
> >> +static const struct of_device_id jh7110_stgcrg_match[] = {
> >> +       { .compatible = "starfive,jh7110-stgcrg" },
> >> +       { /* sentinel */ }
> >> +};
> >> +MODULE_DEVICE_TABLE(of, jh7110_stgcrg_match);
> >> +
> >> +static struct platform_driver jh7110_stgcrg_driver = {
> >> +       .probe = jh7110_stgcrg_probe,
> >> +       .driver = {
> >> +               .name = "clk-starfive-jh7110-stg",
> >> +               .of_match_table = jh7110_stgcrg_match,
> >> +       },
> >> +};
> >> +module_platform_driver(jh7110_stgcrg_driver);
> >> +
> >> +MODULE_AUTHOR("Xingyu Wu <xingyu.wu@starfivetech.com>");
> >> +MODULE_AUTHOR("Emil Renner Berthing <kernel@esmil.dk>");
> >> +MODULE_DESCRIPTION("StarFive JH7110 System-Top-Group clock driver");
> >> +MODULE_LICENSE("GPL");
> >> --
> >> 2.25.1
> >>
> >>
> >> _______________________________________________
> >> linux-riscv mailing list
> >> linux-riscv@lists.infradead.org
> >> http://lists.infradead.org/mailman/listinfo/linux-riscv
>

[PATCH v7 3/9] dt-bindings: clock: Add StarFive JH7110 Image-Signal-Process clock and reset generator

[Xingyu Wu]

Add bindings for the Image-Signal-Process clock and reset
generator (ISPCRG) on the JH7110 RISC-V SoC by StarFive Ltd.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
---
 .../clock/starfive,jh7110-ispcrg.yaml         | 87 +++++++++++++++++++
 .../dt-bindings/clock/starfive,jh7110-crg.h   | 18 ++++
 .../dt-bindings/reset/starfive,jh7110-crg.h   | 16 ++++
 3 files changed, 121 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-ispcrg.yaml

diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-ispcrg.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-ispcrg.yaml
new file mode 100644
index 000000000000..3b8b85be5cd0
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-ispcrg.yaml
@@ -0,0 +1,87 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/starfive,jh7110-ispcrg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 Image-Signal-Process Clock and Reset Generator
+
+maintainers:
+  - Xingyu Wu <xingyu.wu@starfivetech.com>
+
+properties:
+  compatible:
+    const: starfive,jh7110-ispcrg
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: ISP Top core
+      - description: ISP Top Axi
+      - description: NOC ISP Bus
+      - description: external DVP
+
+  clock-names:
+    items:
+      - const: isp_top_core
+      - const: isp_top_axi
+      - const: noc_bus_isp_axi
+      - const: dvp_clk
+
+  resets:
+    items:
+      - description: ISP Top core
+      - description: ISP Top Axi
+      - description: NOC ISP Bus
+
+  '#clock-cells':
+    const: 1
+    description:
+      See <dt-bindings/clock/starfive,jh7110-crg.h> for valid indices.
+
+  '#reset-cells':
+    const: 1
+    description:
+      See <dt-bindings/reset/starfive,jh7110-crg.h> for valid indices.
+
+  power-domains:
+    maxItems: 1
+    description:
+      ISP domain power
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - resets
+  - '#clock-cells'
+  - '#reset-cells'
+  - power-domains
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/starfive,jh7110-crg.h>
+    #include <dt-bindings/power/starfive,jh7110-pmu.h>
+    #include <dt-bindings/reset/starfive,jh7110-crg.h>
+
+    ispcrg: clock-controller@19810000 {
+        compatible = "starfive,jh7110-ispcrg";
+        reg = <0x19810000 0x10000>;
+        clocks = <&syscrg JH7110_SYSCLK_ISP_TOP_CORE>,
+                 <&syscrg JH7110_SYSCLK_ISP_TOP_AXI>,
+                 <&syscrg JH7110_SYSCLK_NOC_BUS_ISP_AXI>,
+                 <&dvp_clk>;
+        clock-names = "isp_top_core", "isp_top_axi",
+                      "noc_bus_isp_axi", "dvp_clk";
+        resets = <&syscrg JH7110_SYSRST_ISP_TOP>,
+                 <&syscrg JH7110_SYSRST_ISP_TOP_AXI>,
+                 <&syscrg JH7110_SYSRST_NOC_BUS_ISP_AXI>;
+        #clock-cells = <1>;
+        #reset-cells = <1>;
+        power-domains = <&pwrc JH7110_PD_ISP>;
+    };
diff --git a/include/dt-bindings/clock/starfive,jh7110-crg.h b/include/dt-bindings/clock/starfive,jh7110-crg.h
index 6c8e8b4cf1f6..39acf30db491 100644
--- a/include/dt-bindings/clock/starfive,jh7110-crg.h
+++ b/include/dt-bindings/clock/starfive,jh7110-crg.h
@@ -252,4 +252,22 @@
 
 #define JH7110_STGCLK_END			29
 
+/* ISPCRG clocks */
+#define JH7110_ISPCLK_DOM4_APB_FUNC		0
+#define JH7110_ISPCLK_MIPI_RX0_PXL		1
+#define JH7110_ISPCLK_DVP_INV			2
+#define JH7110_ISPCLK_M31DPHY_CFG_IN		3
+#define JH7110_ISPCLK_M31DPHY_REF_IN		4
+#define JH7110_ISPCLK_M31DPHY_TX_ESC_LAN0	5
+#define JH7110_ISPCLK_VIN_APB			6
+#define JH7110_ISPCLK_VIN_SYS			7
+#define JH7110_ISPCLK_VIN_PIXEL_IF0		8
+#define JH7110_ISPCLK_VIN_PIXEL_IF1		9
+#define JH7110_ISPCLK_VIN_PIXEL_IF2		10
+#define JH7110_ISPCLK_VIN_PIXEL_IF3		11
+#define JH7110_ISPCLK_VIN_P_AXI_WR		12
+#define JH7110_ISPCLK_ISPV2_TOP_WRAPPER_C	13
+
+#define JH7110_ISPCLK_END			14
+
 #endif /* __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__ */
diff --git a/include/dt-bindings/reset/starfive,jh7110-crg.h b/include/dt-bindings/reset/starfive,jh7110-crg.h
index 4e96ab81dd8e..2c5d9dcefffa 100644
--- a/include/dt-bindings/reset/starfive,jh7110-crg.h
+++ b/include/dt-bindings/reset/starfive,jh7110-crg.h
@@ -179,4 +179,20 @@
 
 #define JH7110_STGRST_END			23
 
+/* ISPCRG resets */
+#define JH7110_ISPRST_ISPV2_TOP_WRAPPER_P	0
+#define JH7110_ISPRST_ISPV2_TOP_WRAPPER_C	1
+#define JH7110_ISPRST_M31DPHY_HW		2
+#define JH7110_ISPRST_M31DPHY_B09_AON		3
+#define JH7110_ISPRST_VIN_APB			4
+#define JH7110_ISPRST_VIN_PIXEL_IF0		5
+#define JH7110_ISPRST_VIN_PIXEL_IF1		6
+#define JH7110_ISPRST_VIN_PIXEL_IF2		7
+#define JH7110_ISPRST_VIN_PIXEL_IF3		8
+#define JH7110_ISPRST_VIN_SYS			9
+#define JH7110_ISPRST_VIN_P_AXI_RD		10
+#define JH7110_ISPRST_VIN_P_AXI_WR		11
+
+#define JH7110_ISPRST_END			12
+
 #endif /* __DT_BINDINGS_RESET_STARFIVE_JH7110_CRG_H__ */
-- 
2.25.1

Re: [PATCH v7 3/9] dt-bindings: clock: Add StarFive JH7110 Image-Signal-Process clock and reset generator

[Emil Renner Berthing]

On Wed, 12 Jul 2023 at 11:22, Xingyu Wu <xingyu.wu@starfivetech.com> wrote:
>
> Add bindings for the Image-Signal-Process clock and reset
> generator (ISPCRG) on the JH7110 RISC-V SoC by StarFive Ltd.
>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>

> Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
> ---
>  .../clock/starfive,jh7110-ispcrg.yaml         | 87 +++++++++++++++++++
>  .../dt-bindings/clock/starfive,jh7110-crg.h   | 18 ++++
>  .../dt-bindings/reset/starfive,jh7110-crg.h   | 16 ++++
>  3 files changed, 121 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-ispcrg.yaml
>
> diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-ispcrg.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-ispcrg.yaml
> new file mode 100644
> index 000000000000..3b8b85be5cd0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-ispcrg.yaml
> @@ -0,0 +1,87 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/starfive,jh7110-ispcrg.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: StarFive JH7110 Image-Signal-Process Clock and Reset Generator
> +
> +maintainers:
> +  - Xingyu Wu <xingyu.wu@starfivetech.com>
> +
> +properties:
> +  compatible:
> +    const: starfive,jh7110-ispcrg
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: ISP Top core
> +      - description: ISP Top Axi
> +      - description: NOC ISP Bus
> +      - description: external DVP
> +
> +  clock-names:
> +    items:
> +      - const: isp_top_core
> +      - const: isp_top_axi
> +      - const: noc_bus_isp_axi
> +      - const: dvp_clk
> +
> +  resets:
> +    items:
> +      - description: ISP Top core
> +      - description: ISP Top Axi
> +      - description: NOC ISP Bus
> +
> +  '#clock-cells':
> +    const: 1
> +    description:
> +      See <dt-bindings/clock/starfive,jh7110-crg.h> for valid indices.
> +
> +  '#reset-cells':
> +    const: 1
> +    description:
> +      See <dt-bindings/reset/starfive,jh7110-crg.h> for valid indices.
> +
> +  power-domains:
> +    maxItems: 1
> +    description:
> +      ISP domain power
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - resets
> +  - '#clock-cells'
> +  - '#reset-cells'
> +  - power-domains
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/starfive,jh7110-crg.h>
> +    #include <dt-bindings/power/starfive,jh7110-pmu.h>
> +    #include <dt-bindings/reset/starfive,jh7110-crg.h>
> +
> +    ispcrg: clock-controller@19810000 {
> +        compatible = "starfive,jh7110-ispcrg";
> +        reg = <0x19810000 0x10000>;
> +        clocks = <&syscrg JH7110_SYSCLK_ISP_TOP_CORE>,
> +                 <&syscrg JH7110_SYSCLK_ISP_TOP_AXI>,
> +                 <&syscrg JH7110_SYSCLK_NOC_BUS_ISP_AXI>,
> +                 <&dvp_clk>;
> +        clock-names = "isp_top_core", "isp_top_axi",
> +                      "noc_bus_isp_axi", "dvp_clk";
> +        resets = <&syscrg JH7110_SYSRST_ISP_TOP>,
> +                 <&syscrg JH7110_SYSRST_ISP_TOP_AXI>,
> +                 <&syscrg JH7110_SYSRST_NOC_BUS_ISP_AXI>;
> +        #clock-cells = <1>;
> +        #reset-cells = <1>;
> +        power-domains = <&pwrc JH7110_PD_ISP>;
> +    };
> diff --git a/include/dt-bindings/clock/starfive,jh7110-crg.h b/include/dt-bindings/clock/starfive,jh7110-crg.h
> index 6c8e8b4cf1f6..39acf30db491 100644
> --- a/include/dt-bindings/clock/starfive,jh7110-crg.h
> +++ b/include/dt-bindings/clock/starfive,jh7110-crg.h
> @@ -252,4 +252,22 @@
>
>  #define JH7110_STGCLK_END                      29
>
> +/* ISPCRG clocks */
> +#define JH7110_ISPCLK_DOM4_APB_FUNC            0
> +#define JH7110_ISPCLK_MIPI_RX0_PXL             1
> +#define JH7110_ISPCLK_DVP_INV                  2
> +#define JH7110_ISPCLK_M31DPHY_CFG_IN           3
> +#define JH7110_ISPCLK_M31DPHY_REF_IN           4
> +#define JH7110_ISPCLK_M31DPHY_TX_ESC_LAN0      5
> +#define JH7110_ISPCLK_VIN_APB                  6
> +#define JH7110_ISPCLK_VIN_SYS                  7
> +#define JH7110_ISPCLK_VIN_PIXEL_IF0            8
> +#define JH7110_ISPCLK_VIN_PIXEL_IF1            9
> +#define JH7110_ISPCLK_VIN_PIXEL_IF2            10
> +#define JH7110_ISPCLK_VIN_PIXEL_IF3            11
> +#define JH7110_ISPCLK_VIN_P_AXI_WR             12
> +#define JH7110_ISPCLK_ISPV2_TOP_WRAPPER_C      13
> +
> +#define JH7110_ISPCLK_END                      14
> +
>  #endif /* __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__ */
> diff --git a/include/dt-bindings/reset/starfive,jh7110-crg.h b/include/dt-bindings/reset/starfive,jh7110-crg.h
> index 4e96ab81dd8e..2c5d9dcefffa 100644
> --- a/include/dt-bindings/reset/starfive,jh7110-crg.h
> +++ b/include/dt-bindings/reset/starfive,jh7110-crg.h
> @@ -179,4 +179,20 @@
>
>  #define JH7110_STGRST_END                      23
>
> +/* ISPCRG resets */
> +#define JH7110_ISPRST_ISPV2_TOP_WRAPPER_P      0
> +#define JH7110_ISPRST_ISPV2_TOP_WRAPPER_C      1
> +#define JH7110_ISPRST_M31DPHY_HW               2
> +#define JH7110_ISPRST_M31DPHY_B09_AON          3
> +#define JH7110_ISPRST_VIN_APB                  4
> +#define JH7110_ISPRST_VIN_PIXEL_IF0            5
> +#define JH7110_ISPRST_VIN_PIXEL_IF1            6
> +#define JH7110_ISPRST_VIN_PIXEL_IF2            7
> +#define JH7110_ISPRST_VIN_PIXEL_IF3            8
> +#define JH7110_ISPRST_VIN_SYS                  9
> +#define JH7110_ISPRST_VIN_P_AXI_RD             10
> +#define JH7110_ISPRST_VIN_P_AXI_WR             11
> +
> +#define JH7110_ISPRST_END                      12
> +
>  #endif /* __DT_BINDINGS_RESET_STARFIVE_JH7110_CRG_H__ */
> --
> 2.25.1
>
>
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv

[PATCH v7 4/9] clk: starfive: Add StarFive JH7110 Image-Signal-Process clock driver

[Xingyu Wu]

Add driver for the StarFive JH7110 Image-Signal-Process clock controller.
And these clock controllers should power on and enable the clocks from
SYSCRG first before registering.

Reviewed-by: Hal Feng <hal.feng@starfivetech.com>
Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
---
 drivers/clk/starfive/Kconfig                  |   8 +
 drivers/clk/starfive/Makefile                 |   1 +
 .../clk/starfive/clk-starfive-jh7110-isp.c    | 232 ++++++++++++++++++
 drivers/clk/starfive/clk-starfive-jh7110.h    |   6 +
 4 files changed, 247 insertions(+)
 create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-isp.c

diff --git a/drivers/clk/starfive/Kconfig b/drivers/clk/starfive/Kconfig
index eb1023b5e95a..13b4d08cbcd2 100644
--- a/drivers/clk/starfive/Kconfig
+++ b/drivers/clk/starfive/Kconfig
@@ -47,3 +47,11 @@ config CLK_STARFIVE_JH7110_STG
 	help
 	  Say yes here to support the System-Top-Group clock controller
 	  on the StarFive JH7110 SoC.
+
+config CLK_STARFIVE_JH7110_ISP
+	tristate "StarFive JH7110 Image-Signal-Process clock support"
+	depends on CLK_STARFIVE_JH7110_SYS && JH71XX_PMU
+	default m if ARCH_STARFIVE
+	help
+	  Say yes here to support the Image-Signal-Process clock controller
+	  on the StarFive JH7110 SoC.
diff --git a/drivers/clk/starfive/Makefile b/drivers/clk/starfive/Makefile
index b81e97ee2659..76fb9f8d628b 100644
--- a/drivers/clk/starfive/Makefile
+++ b/drivers/clk/starfive/Makefile
@@ -7,3 +7,4 @@ obj-$(CONFIG_CLK_STARFIVE_JH7100_AUDIO)	+= clk-starfive-jh7100-audio.o
 obj-$(CONFIG_CLK_STARFIVE_JH7110_SYS)	+= clk-starfive-jh7110-sys.o
 obj-$(CONFIG_CLK_STARFIVE_JH7110_AON)	+= clk-starfive-jh7110-aon.o
 obj-$(CONFIG_CLK_STARFIVE_JH7110_STG)	+= clk-starfive-jh7110-stg.o
+obj-$(CONFIG_CLK_STARFIVE_JH7110_ISP)	+= clk-starfive-jh7110-isp.o
diff --git a/drivers/clk/starfive/clk-starfive-jh7110-isp.c b/drivers/clk/starfive/clk-starfive-jh7110-isp.c
new file mode 100644
index 000000000000..7e51447060fe
--- /dev/null
+++ b/drivers/clk/starfive/clk-starfive-jh7110-isp.c
@@ -0,0 +1,232 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * StarFive JH7110 Image-Signal-Process Clock Driver
+ *
+ * Copyright (C) 2022-2023 StarFive Technology Co., Ltd.
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+
+#include <dt-bindings/clock/starfive,jh7110-crg.h>
+
+#include "clk-starfive-jh7110.h"
+
+/* external clocks */
+#define JH7110_ISPCLK_ISP_TOP_CORE		(JH7110_ISPCLK_END + 0)
+#define JH7110_ISPCLK_ISP_TOP_AXI		(JH7110_ISPCLK_END + 1)
+#define JH7110_ISPCLK_NOC_BUS_ISP_AXI		(JH7110_ISPCLK_END + 2)
+#define JH7110_ISPCLK_DVP_CLK			(JH7110_ISPCLK_END + 3)
+#define JH7110_ISPCLK_EXT_END			(JH7110_ISPCLK_END + 4)
+
+static struct clk_bulk_data jh7110_isp_top_clks[] = {
+	{ .id = "isp_top_core" },
+	{ .id = "isp_top_axi" }
+};
+
+static const struct jh71x0_clk_data jh7110_ispclk_data[] = {
+	/* syscon */
+	JH71X0__DIV(JH7110_ISPCLK_DOM4_APB_FUNC, "dom4_apb_func", 15,
+		    JH7110_ISPCLK_ISP_TOP_AXI),
+	JH71X0__DIV(JH7110_ISPCLK_MIPI_RX0_PXL, "mipi_rx0_pxl", 8,
+		    JH7110_ISPCLK_ISP_TOP_CORE),
+	JH71X0__INV(JH7110_ISPCLK_DVP_INV, "dvp_inv", JH7110_ISPCLK_DVP_CLK),
+	/* vin */
+	JH71X0__DIV(JH7110_ISPCLK_M31DPHY_CFG_IN, "m31dphy_cfg_in", 16,
+		    JH7110_ISPCLK_ISP_TOP_CORE),
+	JH71X0__DIV(JH7110_ISPCLK_M31DPHY_REF_IN, "m31dphy_ref_in", 16,
+		    JH7110_ISPCLK_ISP_TOP_CORE),
+	JH71X0__DIV(JH7110_ISPCLK_M31DPHY_TX_ESC_LAN0, "m31dphy_tx_esc_lan0", 60,
+		    JH7110_ISPCLK_ISP_TOP_CORE),
+	JH71X0_GATE(JH7110_ISPCLK_VIN_APB, "vin_apb", 0,
+		    JH7110_ISPCLK_DOM4_APB_FUNC),
+	JH71X0__DIV(JH7110_ISPCLK_VIN_SYS, "vin_sys", 8, JH7110_ISPCLK_ISP_TOP_CORE),
+	JH71X0_GATE(JH7110_ISPCLK_VIN_PIXEL_IF0, "vin_pixel_if0", 0,
+		    JH7110_ISPCLK_MIPI_RX0_PXL),
+	JH71X0_GATE(JH7110_ISPCLK_VIN_PIXEL_IF1, "vin_pixel_if1", 0,
+		    JH7110_ISPCLK_MIPI_RX0_PXL),
+	JH71X0_GATE(JH7110_ISPCLK_VIN_PIXEL_IF2, "vin_pixel_if2", 0,
+		    JH7110_ISPCLK_MIPI_RX0_PXL),
+	JH71X0_GATE(JH7110_ISPCLK_VIN_PIXEL_IF3, "vin_pixel_if3", 0,
+		    JH7110_ISPCLK_MIPI_RX0_PXL),
+	JH71X0__MUX(JH7110_ISPCLK_VIN_P_AXI_WR, "vin_p_axi_wr", 2,
+		    JH7110_ISPCLK_MIPI_RX0_PXL,
+		    JH7110_ISPCLK_DVP_INV),
+	/* ispv2_top_wrapper */
+	JH71X0_GMUX(JH7110_ISPCLK_ISPV2_TOP_WRAPPER_C, "ispv2_top_wrapper_c", 0, 2,
+		    JH7110_ISPCLK_MIPI_RX0_PXL,
+		    JH7110_ISPCLK_DVP_INV),
+};
+
+static inline int jh7110_isp_top_rst_init(struct jh71x0_clk_priv *priv)
+{
+	struct reset_control *top_rsts;
+
+	/* The resets should be shared and other ISP modules will use its. */
+	top_rsts = devm_reset_control_array_get_shared(priv->dev);
+	if (IS_ERR(top_rsts))
+		return dev_err_probe(priv->dev, PTR_ERR(top_rsts),
+				     "failed to get top resets\n");
+
+	return reset_control_deassert(top_rsts);
+}
+
+static struct clk_hw *jh7110_ispclk_get(struct of_phandle_args *clkspec, void *data)
+{
+	struct jh71x0_clk_priv *priv = data;
+	unsigned int idx = clkspec->args[0];
+
+	if (idx < JH7110_ISPCLK_END)
+		return &priv->reg[idx].hw;
+
+	return ERR_PTR(-EINVAL);
+}
+
+#ifdef CONFIG_PM
+static int jh7110_ispcrg_suspend(struct device *dev)
+{
+	struct top_sysclk *top = dev_get_drvdata(dev);
+
+	clk_bulk_disable_unprepare(top->top_clks_num, top->top_clks);
+
+	return 0;
+}
+
+static int jh7110_ispcrg_resume(struct device *dev)
+{
+	struct top_sysclk *top = dev_get_drvdata(dev);
+
+	return clk_bulk_prepare_enable(top->top_clks_num, top->top_clks);
+}
+#endif
+
+static const struct dev_pm_ops jh7110_ispcrg_pm_ops = {
+	SET_RUNTIME_PM_OPS(jh7110_ispcrg_suspend, jh7110_ispcrg_resume, NULL)
+};
+
+static int jh7110_ispcrg_probe(struct platform_device *pdev)
+{
+	struct jh71x0_clk_priv *priv;
+	struct top_sysclk *top;
+	unsigned int idx;
+	int ret;
+
+	priv = devm_kzalloc(&pdev->dev,
+			    struct_size(priv, reg, JH7110_ISPCLK_END),
+			    GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	top = devm_kzalloc(&pdev->dev, sizeof(*top), GFP_KERNEL);
+	if (!top)
+		return -ENOMEM;
+
+	spin_lock_init(&priv->rmw_lock);
+	priv->dev = &pdev->dev;
+	priv->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(priv->base))
+		return PTR_ERR(priv->base);
+
+	top->top_clks = jh7110_isp_top_clks;
+	top->top_clks_num = ARRAY_SIZE(jh7110_isp_top_clks);
+	ret = devm_clk_bulk_get(priv->dev, top->top_clks_num, top->top_clks);
+	if (ret)
+		return dev_err_probe(priv->dev, ret, "failed to get main clocks\n");
+	dev_set_drvdata(priv->dev, top);
+
+	/* enable power domain and clocks */
+	pm_runtime_enable(priv->dev);
+	ret = pm_runtime_get_sync(priv->dev);
+	if (ret < 0)
+		return dev_err_probe(priv->dev, ret, "failed to turn on power\n");
+
+	ret = jh7110_isp_top_rst_init(priv);
+	if (ret)
+		goto err_exit;
+
+	for (idx = 0; idx < JH7110_ISPCLK_END; idx++) {
+		u32 max = jh7110_ispclk_data[idx].max;
+		struct clk_parent_data parents[4] = {};
+		struct clk_init_data init = {
+			.name = jh7110_ispclk_data[idx].name,
+			.ops = starfive_jh71x0_clk_ops(max),
+			.parent_data = parents,
+			.num_parents =
+				((max & JH71X0_CLK_MUX_MASK) >> JH71X0_CLK_MUX_SHIFT) + 1,
+			.flags = jh7110_ispclk_data[idx].flags,
+		};
+		struct jh71x0_clk *clk = &priv->reg[idx];
+		unsigned int i;
+		const char *fw_name[JH7110_ISPCLK_EXT_END - JH7110_ISPCLK_END] = {
+			"isp_top_core",
+			"isp_top_axi",
+			"noc_bus_isp_axi",
+			"dvp_clk"
+		};
+
+		for (i = 0; i < init.num_parents; i++) {
+			unsigned int pidx = jh7110_ispclk_data[idx].parents[i];
+
+			if (pidx < JH7110_ISPCLK_END)
+				parents[i].hw = &priv->reg[pidx].hw;
+			else
+				parents[i].fw_name = fw_name[pidx - JH7110_ISPCLK_END];
+		}
+
+		clk->hw.init = &init;
+		clk->idx = idx;
+		clk->max_div = max & JH71X0_CLK_DIV_MASK;
+
+		ret = devm_clk_hw_register(&pdev->dev, &clk->hw);
+		if (ret)
+			goto err_exit;
+	}
+
+	ret = devm_of_clk_add_hw_provider(&pdev->dev, jh7110_ispclk_get, priv);
+	if (ret)
+		goto err_exit;
+
+	ret = jh7110_reset_controller_register(priv, "rst-isp", 3);
+	if (ret)
+		goto err_exit;
+
+	return 0;
+
+err_exit:
+	pm_runtime_put_sync(priv->dev);
+	pm_runtime_disable(priv->dev);
+	return ret;
+}
+
+static int jh7110_ispcrg_remove(struct platform_device *pdev)
+{
+	pm_runtime_put_sync(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
+static const struct of_device_id jh7110_ispcrg_match[] = {
+	{ .compatible = "starfive,jh7110-ispcrg" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, jh7110_ispcrg_match);
+
+static struct platform_driver jh7110_ispcrg_driver = {
+	.probe = jh7110_ispcrg_probe,
+	.remove = jh7110_ispcrg_remove,
+	.driver = {
+		.name = "clk-starfive-jh7110-isp",
+		.of_match_table = jh7110_ispcrg_match,
+		.pm = &jh7110_ispcrg_pm_ops,
+	},
+};
+module_platform_driver(jh7110_ispcrg_driver);
+
+MODULE_AUTHOR("Xingyu Wu <xingyu.wu@starfivetech.com>");
+MODULE_DESCRIPTION("StarFive JH7110 Image-Signal-Process clock driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/clk/starfive/clk-starfive-jh7110.h b/drivers/clk/starfive/clk-starfive-jh7110.h
index f29682b8d400..5425fd89394a 100644
--- a/drivers/clk/starfive/clk-starfive-jh7110.h
+++ b/drivers/clk/starfive/clk-starfive-jh7110.h
@@ -4,6 +4,12 @@
 
 #include "clk-starfive-jh71x0.h"
 
+/* top clocks of ISP/VOUT domain from SYSCRG */
+struct top_sysclk {
+	struct clk_bulk_data *top_clks;
+	int top_clks_num;
+};
+
 int jh7110_reset_controller_register(struct jh71x0_clk_priv *priv,
 				     const char *adev_name,
 				     u32 adev_id);
-- 
2.25.1

Re: [PATCH v7 4/9] clk: starfive: Add StarFive JH7110 Image-Signal-Process clock driver

[Emil Renner Berthing]

On Wed, 12 Jul 2023 at 11:22, Xingyu Wu <xingyu.wu@starfivetech.com> wrote:
>
> Add driver for the StarFive JH7110 Image-Signal-Process clock controller.
> And these clock controllers should power on and enable the clocks from
> SYSCRG first before registering.
>
> Reviewed-by: Hal Feng <hal.feng@starfivetech.com>
> Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
> ---
>  drivers/clk/starfive/Kconfig                  |   8 +
>  drivers/clk/starfive/Makefile                 |   1 +
>  .../clk/starfive/clk-starfive-jh7110-isp.c    | 232 ++++++++++++++++++
>  drivers/clk/starfive/clk-starfive-jh7110.h    |   6 +
>  4 files changed, 247 insertions(+)
>  create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-isp.c
>
> diff --git a/drivers/clk/starfive/Kconfig b/drivers/clk/starfive/Kconfig
> index eb1023b5e95a..13b4d08cbcd2 100644
> --- a/drivers/clk/starfive/Kconfig
> +++ b/drivers/clk/starfive/Kconfig
> @@ -47,3 +47,11 @@ config CLK_STARFIVE_JH7110_STG
>         help
>           Say yes here to support the System-Top-Group clock controller
>           on the StarFive JH7110 SoC.
> +
> +config CLK_STARFIVE_JH7110_ISP
> +       tristate "StarFive JH7110 Image-Signal-Process clock support"
> +       depends on CLK_STARFIVE_JH7110_SYS && JH71XX_PMU
> +       default m if ARCH_STARFIVE
> +       help
> +         Say yes here to support the Image-Signal-Process clock controller
> +         on the StarFive JH7110 SoC.
> diff --git a/drivers/clk/starfive/Makefile b/drivers/clk/starfive/Makefile
> index b81e97ee2659..76fb9f8d628b 100644
> --- a/drivers/clk/starfive/Makefile
> +++ b/drivers/clk/starfive/Makefile
> @@ -7,3 +7,4 @@ obj-$(CONFIG_CLK_STARFIVE_JH7100_AUDIO) += clk-starfive-jh7100-audio.o
>  obj-$(CONFIG_CLK_STARFIVE_JH7110_SYS)  += clk-starfive-jh7110-sys.o
>  obj-$(CONFIG_CLK_STARFIVE_JH7110_AON)  += clk-starfive-jh7110-aon.o
>  obj-$(CONFIG_CLK_STARFIVE_JH7110_STG)  += clk-starfive-jh7110-stg.o
> +obj-$(CONFIG_CLK_STARFIVE_JH7110_ISP)  += clk-starfive-jh7110-isp.o
> diff --git a/drivers/clk/starfive/clk-starfive-jh7110-isp.c b/drivers/clk/starfive/clk-starfive-jh7110-isp.c
> new file mode 100644
> index 000000000000..7e51447060fe
> --- /dev/null
> +++ b/drivers/clk/starfive/clk-starfive-jh7110-isp.c
> @@ -0,0 +1,232 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * StarFive JH7110 Image-Signal-Process Clock Driver
> + *
> + * Copyright (C) 2022-2023 StarFive Technology Co., Ltd.
> + */
> +
> +#include <linux/clk.h>
> +#include <linux/clk-provider.h>
> +#include <linux/io.h>
> +#include <linux/platform_device.h>
> +#include <linux/pm_runtime.h>
> +#include <linux/reset.h>
> +
> +#include <dt-bindings/clock/starfive,jh7110-crg.h>
> +
> +#include "clk-starfive-jh7110.h"
> +
> +/* external clocks */
> +#define JH7110_ISPCLK_ISP_TOP_CORE             (JH7110_ISPCLK_END + 0)
> +#define JH7110_ISPCLK_ISP_TOP_AXI              (JH7110_ISPCLK_END + 1)
> +#define JH7110_ISPCLK_NOC_BUS_ISP_AXI          (JH7110_ISPCLK_END + 2)
> +#define JH7110_ISPCLK_DVP_CLK                  (JH7110_ISPCLK_END + 3)
> +#define JH7110_ISPCLK_EXT_END                  (JH7110_ISPCLK_END + 4)
> +
> +static struct clk_bulk_data jh7110_isp_top_clks[] = {
> +       { .id = "isp_top_core" },
> +       { .id = "isp_top_axi" }
> +};
> +
> +static const struct jh71x0_clk_data jh7110_ispclk_data[] = {
> +       /* syscon */
> +       JH71X0__DIV(JH7110_ISPCLK_DOM4_APB_FUNC, "dom4_apb_func", 15,
> +                   JH7110_ISPCLK_ISP_TOP_AXI),
> +       JH71X0__DIV(JH7110_ISPCLK_MIPI_RX0_PXL, "mipi_rx0_pxl", 8,
> +                   JH7110_ISPCLK_ISP_TOP_CORE),
> +       JH71X0__INV(JH7110_ISPCLK_DVP_INV, "dvp_inv", JH7110_ISPCLK_DVP_CLK),
> +       /* vin */
> +       JH71X0__DIV(JH7110_ISPCLK_M31DPHY_CFG_IN, "m31dphy_cfg_in", 16,
> +                   JH7110_ISPCLK_ISP_TOP_CORE),
> +       JH71X0__DIV(JH7110_ISPCLK_M31DPHY_REF_IN, "m31dphy_ref_in", 16,
> +                   JH7110_ISPCLK_ISP_TOP_CORE),
> +       JH71X0__DIV(JH7110_ISPCLK_M31DPHY_TX_ESC_LAN0, "m31dphy_tx_esc_lan0", 60,
> +                   JH7110_ISPCLK_ISP_TOP_CORE),
> +       JH71X0_GATE(JH7110_ISPCLK_VIN_APB, "vin_apb", 0,
> +                   JH7110_ISPCLK_DOM4_APB_FUNC),
> +       JH71X0__DIV(JH7110_ISPCLK_VIN_SYS, "vin_sys", 8, JH7110_ISPCLK_ISP_TOP_CORE),
> +       JH71X0_GATE(JH7110_ISPCLK_VIN_PIXEL_IF0, "vin_pixel_if0", 0,
> +                   JH7110_ISPCLK_MIPI_RX0_PXL),
> +       JH71X0_GATE(JH7110_ISPCLK_VIN_PIXEL_IF1, "vin_pixel_if1", 0,
> +                   JH7110_ISPCLK_MIPI_RX0_PXL),
> +       JH71X0_GATE(JH7110_ISPCLK_VIN_PIXEL_IF2, "vin_pixel_if2", 0,
> +                   JH7110_ISPCLK_MIPI_RX0_PXL),
> +       JH71X0_GATE(JH7110_ISPCLK_VIN_PIXEL_IF3, "vin_pixel_if3", 0,
> +                   JH7110_ISPCLK_MIPI_RX0_PXL),
> +       JH71X0__MUX(JH7110_ISPCLK_VIN_P_AXI_WR, "vin_p_axi_wr", 2,
> +                   JH7110_ISPCLK_MIPI_RX0_PXL,
> +                   JH7110_ISPCLK_DVP_INV),
> +       /* ispv2_top_wrapper */
> +       JH71X0_GMUX(JH7110_ISPCLK_ISPV2_TOP_WRAPPER_C, "ispv2_top_wrapper_c", 0, 2,
> +                   JH7110_ISPCLK_MIPI_RX0_PXL,
> +                   JH7110_ISPCLK_DVP_INV),
> +};
> +
> +static inline int jh7110_isp_top_rst_init(struct jh71x0_clk_priv *priv)
> +{
> +       struct reset_control *top_rsts;
> +
> +       /* The resets should be shared and other ISP modules will use its. */
> +       top_rsts = devm_reset_control_array_get_shared(priv->dev);
> +       if (IS_ERR(top_rsts))
> +               return dev_err_probe(priv->dev, PTR_ERR(top_rsts),
> +                                    "failed to get top resets\n");
> +
> +       return reset_control_deassert(top_rsts);
> +}
> +
> +static struct clk_hw *jh7110_ispclk_get(struct of_phandle_args *clkspec, void *data)
> +{
> +       struct jh71x0_clk_priv *priv = data;
> +       unsigned int idx = clkspec->args[0];
> +
> +       if (idx < JH7110_ISPCLK_END)
> +               return &priv->reg[idx].hw;
> +
> +       return ERR_PTR(-EINVAL);
> +}
> +
> +#ifdef CONFIG_PM
> +static int jh7110_ispcrg_suspend(struct device *dev)
> +{
> +       struct top_sysclk *top = dev_get_drvdata(dev);
> +
> +       clk_bulk_disable_unprepare(top->top_clks_num, top->top_clks);
> +
> +       return 0;
> +}
> +
> +static int jh7110_ispcrg_resume(struct device *dev)
> +{
> +       struct top_sysclk *top = dev_get_drvdata(dev);
> +
> +       return clk_bulk_prepare_enable(top->top_clks_num, top->top_clks);
> +}
> +#endif
> +
> +static const struct dev_pm_ops jh7110_ispcrg_pm_ops = {
> +       SET_RUNTIME_PM_OPS(jh7110_ispcrg_suspend, jh7110_ispcrg_resume, NULL)
> +};
> +
> +static int jh7110_ispcrg_probe(struct platform_device *pdev)
> +{
> +       struct jh71x0_clk_priv *priv;
> +       struct top_sysclk *top;
> +       unsigned int idx;
> +       int ret;
> +
> +       priv = devm_kzalloc(&pdev->dev,
> +                           struct_size(priv, reg, JH7110_ISPCLK_END),
> +                           GFP_KERNEL);
> +       if (!priv)
> +               return -ENOMEM;
> +
> +       top = devm_kzalloc(&pdev->dev, sizeof(*top), GFP_KERNEL);
> +       if (!top)
> +               return -ENOMEM;
> +
> +       spin_lock_init(&priv->rmw_lock);
> +       priv->dev = &pdev->dev;
> +       priv->base = devm_platform_ioremap_resource(pdev, 0);
> +       if (IS_ERR(priv->base))
> +               return PTR_ERR(priv->base);
> +
> +       top->top_clks = jh7110_isp_top_clks;
> +       top->top_clks_num = ARRAY_SIZE(jh7110_isp_top_clks);
> +       ret = devm_clk_bulk_get(priv->dev, top->top_clks_num, top->top_clks);
> +       if (ret)
> +               return dev_err_probe(priv->dev, ret, "failed to get main clocks\n");
> +       dev_set_drvdata(priv->dev, top);
> +
> +       /* enable power domain and clocks */
> +       pm_runtime_enable(priv->dev);
> +       ret = pm_runtime_get_sync(priv->dev);
> +       if (ret < 0)
> +               return dev_err_probe(priv->dev, ret, "failed to turn on power\n");
> +
> +       ret = jh7110_isp_top_rst_init(priv);
> +       if (ret)
> +               goto err_exit;
> +
> +       for (idx = 0; idx < JH7110_ISPCLK_END; idx++) {
> +               u32 max = jh7110_ispclk_data[idx].max;
> +               struct clk_parent_data parents[4] = {};
> +               struct clk_init_data init = {
> +                       .name = jh7110_ispclk_data[idx].name,
> +                       .ops = starfive_jh71x0_clk_ops(max),
> +                       .parent_data = parents,
> +                       .num_parents =
> +                               ((max & JH71X0_CLK_MUX_MASK) >> JH71X0_CLK_MUX_SHIFT) + 1,
> +                       .flags = jh7110_ispclk_data[idx].flags,
> +               };
> +               struct jh71x0_clk *clk = &priv->reg[idx];
> +               unsigned int i;
> +               const char *fw_name[JH7110_ISPCLK_EXT_END - JH7110_ISPCLK_END] = {
> +                       "isp_top_core",
> +                       "isp_top_axi",
> +                       "noc_bus_isp_axi",
> +                       "dvp_clk"
> +               };
> +
> +               for (i = 0; i < init.num_parents; i++) {
> +                       unsigned int pidx = jh7110_ispclk_data[idx].parents[i];
> +
> +                       if (pidx < JH7110_ISPCLK_END)
> +                               parents[i].hw = &priv->reg[pidx].hw;
> +                       else
> +                               parents[i].fw_name = fw_name[pidx - JH7110_ISPCLK_END];
> +               }
> +
> +               clk->hw.init = &init;
> +               clk->idx = idx;
> +               clk->max_div = max & JH71X0_CLK_DIV_MASK;
> +
> +               ret = devm_clk_hw_register(&pdev->dev, &clk->hw);
> +               if (ret)
> +                       goto err_exit;
> +       }
> +
> +       ret = devm_of_clk_add_hw_provider(&pdev->dev, jh7110_ispclk_get, priv);
> +       if (ret)
> +               goto err_exit;
> +
> +       ret = jh7110_reset_controller_register(priv, "rst-isp", 3);
> +       if (ret)
> +               goto err_exit;
> +
> +       return 0;
> +
> +err_exit:
> +       pm_runtime_put_sync(priv->dev);
> +       pm_runtime_disable(priv->dev);
> +       return ret;
> +}
> +
> +static int jh7110_ispcrg_remove(struct platform_device *pdev)
> +{
> +       pm_runtime_put_sync(&pdev->dev);
> +       pm_runtime_disable(&pdev->dev);
> +
> +       return 0;
> +}
> +
> +static const struct of_device_id jh7110_ispcrg_match[] = {
> +       { .compatible = "starfive,jh7110-ispcrg" },
> +       { /* sentinel */ }
> +};
> +MODULE_DEVICE_TABLE(of, jh7110_ispcrg_match);
> +
> +static struct platform_driver jh7110_ispcrg_driver = {
> +       .probe = jh7110_ispcrg_probe,
> +       .remove = jh7110_ispcrg_remove,
> +       .driver = {
> +               .name = "clk-starfive-jh7110-isp",
> +               .of_match_table = jh7110_ispcrg_match,
> +               .pm = &jh7110_ispcrg_pm_ops,
> +       },
> +};
> +module_platform_driver(jh7110_ispcrg_driver);
> +
> +MODULE_AUTHOR("Xingyu Wu <xingyu.wu@starfivetech.com>");
> +MODULE_DESCRIPTION("StarFive JH7110 Image-Signal-Process clock driver");
> +MODULE_LICENSE("GPL");
> diff --git a/drivers/clk/starfive/clk-starfive-jh7110.h b/drivers/clk/starfive/clk-starfive-jh7110.h
> index f29682b8d400..5425fd89394a 100644
> --- a/drivers/clk/starfive/clk-starfive-jh7110.h
> +++ b/drivers/clk/starfive/clk-starfive-jh7110.h
> @@ -4,6 +4,12 @@
>
>  #include "clk-starfive-jh71x0.h"
>
> +/* top clocks of ISP/VOUT domain from SYSCRG */
> +struct top_sysclk {
> +       struct clk_bulk_data *top_clks;
> +       int top_clks_num;
> +};
> +

When reviewing this I was very confused what data the vout and isp
clocks need to share. But as far as I can tell they don't actually
share any data, it's just that they both need a struct like this. I
guess that's ok to put here, but it should really be prefixed with
jh7110_ like the function below. Eg. struct jh7110_top_clks { .. }

With that fixed:
Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>

>  int jh7110_reset_controller_register(struct jh71x0_clk_priv *priv,
>                                      const char *adev_name,
>                                      u32 adev_id);
> --
> 2.25.1
>
>
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv

Re: [PATCH v7 4/9] clk: starfive: Add StarFive JH7110 Image-Signal-Process clock driver

[Xingyu Wu]

On 2023/7/13 1:59, Emil Renner Berthing wrote:
> On Wed, 12 Jul 2023 at 11:22, Xingyu Wu <xingyu.wu@starfivetech.com> wrote:
>>
>> Add driver for the StarFive JH7110 Image-Signal-Process clock controller.
>> And these clock controllers should power on and enable the clocks from
>> SYSCRG first before registering.
>>
>> Reviewed-by: Hal Feng <hal.feng@starfivetech.com>
>> Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
>> ---
>>  drivers/clk/starfive/Kconfig                  |   8 +
>>  drivers/clk/starfive/Makefile                 |   1 +
>>  .../clk/starfive/clk-starfive-jh7110-isp.c    | 232 ++++++++++++++++++
>>  drivers/clk/starfive/clk-starfive-jh7110.h    |   6 +
>>  4 files changed, 247 insertions(+)
>>  create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-isp.c
>>
>> diff --git a/drivers/clk/starfive/Kconfig b/drivers/clk/starfive/Kconfig
>> index eb1023b5e95a..13b4d08cbcd2 100644
>> --- a/drivers/clk/starfive/Kconfig
>> +++ b/drivers/clk/starfive/Kconfig
>> @@ -47,3 +47,11 @@ config CLK_STARFIVE_JH7110_STG
>>         help
>>           Say yes here to support the System-Top-Group clock controller
>>           on the StarFive JH7110 SoC.
>> +
>> +config CLK_STARFIVE_JH7110_ISP
>> +       tristate "StarFive JH7110 Image-Signal-Process clock support"
>> +       depends on CLK_STARFIVE_JH7110_SYS && JH71XX_PMU
>> +       default m if ARCH_STARFIVE
>> +       help
>> +         Say yes here to support the Image-Signal-Process clock controller
>> +         on the StarFive JH7110 SoC.
>> diff --git a/drivers/clk/starfive/Makefile b/drivers/clk/starfive/Makefile
>> index b81e97ee2659..76fb9f8d628b 100644
>> --- a/drivers/clk/starfive/Makefile
>> +++ b/drivers/clk/starfive/Makefile
>> @@ -7,3 +7,4 @@ obj-$(CONFIG_CLK_STARFIVE_JH7100_AUDIO) += clk-starfive-jh7100-audio.o
>>  obj-$(CONFIG_CLK_STARFIVE_JH7110_SYS)  += clk-starfive-jh7110-sys.o
>>  obj-$(CONFIG_CLK_STARFIVE_JH7110_AON)  += clk-starfive-jh7110-aon.o
>>  obj-$(CONFIG_CLK_STARFIVE_JH7110_STG)  += clk-starfive-jh7110-stg.o
>> +obj-$(CONFIG_CLK_STARFIVE_JH7110_ISP)  += clk-starfive-jh7110-isp.o
>> diff --git a/drivers/clk/starfive/clk-starfive-jh7110-isp.c b/drivers/clk/starfive/clk-starfive-jh7110-isp.c
>> new file mode 100644
>> index 000000000000..7e51447060fe
>> --- /dev/null
>> +++ b/drivers/clk/starfive/clk-starfive-jh7110-isp.c
>> @@ -0,0 +1,232 @@
>> +// SPDX-License-Identifier: GPL-2.0
>> +/*
>> + * StarFive JH7110 Image-Signal-Process Clock Driver
>> + *
>> + * Copyright (C) 2022-2023 StarFive Technology Co., Ltd.
>> + */
>> +
>> +#include <linux/clk.h>
>> +#include <linux/clk-provider.h>
>> +#include <linux/io.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/pm_runtime.h>
>> +#include <linux/reset.h>
>> +
>> +#include <dt-bindings/clock/starfive,jh7110-crg.h>
>> +
>> +#include "clk-starfive-jh7110.h"
>> +
>> +/* external clocks */
>> +#define JH7110_ISPCLK_ISP_TOP_CORE             (JH7110_ISPCLK_END + 0)
>> +#define JH7110_ISPCLK_ISP_TOP_AXI              (JH7110_ISPCLK_END + 1)
>> +#define JH7110_ISPCLK_NOC_BUS_ISP_AXI          (JH7110_ISPCLK_END + 2)
>> +#define JH7110_ISPCLK_DVP_CLK                  (JH7110_ISPCLK_END + 3)
>> +#define JH7110_ISPCLK_EXT_END                  (JH7110_ISPCLK_END + 4)
>> +
>> +static struct clk_bulk_data jh7110_isp_top_clks[] = {
>> +       { .id = "isp_top_core" },
>> +       { .id = "isp_top_axi" }
>> +};
>> +
>> +static const struct jh71x0_clk_data jh7110_ispclk_data[] = {
>> +       /* syscon */
>> +       JH71X0__DIV(JH7110_ISPCLK_DOM4_APB_FUNC, "dom4_apb_func", 15,
>> +                   JH7110_ISPCLK_ISP_TOP_AXI),
>> +       JH71X0__DIV(JH7110_ISPCLK_MIPI_RX0_PXL, "mipi_rx0_pxl", 8,
>> +                   JH7110_ISPCLK_ISP_TOP_CORE),
>> +       JH71X0__INV(JH7110_ISPCLK_DVP_INV, "dvp_inv", JH7110_ISPCLK_DVP_CLK),
>> +       /* vin */
>> +       JH71X0__DIV(JH7110_ISPCLK_M31DPHY_CFG_IN, "m31dphy_cfg_in", 16,
>> +                   JH7110_ISPCLK_ISP_TOP_CORE),
>> +       JH71X0__DIV(JH7110_ISPCLK_M31DPHY_REF_IN, "m31dphy_ref_in", 16,
>> +                   JH7110_ISPCLK_ISP_TOP_CORE),
>> +       JH71X0__DIV(JH7110_ISPCLK_M31DPHY_TX_ESC_LAN0, "m31dphy_tx_esc_lan0", 60,
>> +                   JH7110_ISPCLK_ISP_TOP_CORE),
>> +       JH71X0_GATE(JH7110_ISPCLK_VIN_APB, "vin_apb", 0,
>> +                   JH7110_ISPCLK_DOM4_APB_FUNC),
>> +       JH71X0__DIV(JH7110_ISPCLK_VIN_SYS, "vin_sys", 8, JH7110_ISPCLK_ISP_TOP_CORE),
>> +       JH71X0_GATE(JH7110_ISPCLK_VIN_PIXEL_IF0, "vin_pixel_if0", 0,
>> +                   JH7110_ISPCLK_MIPI_RX0_PXL),
>> +       JH71X0_GATE(JH7110_ISPCLK_VIN_PIXEL_IF1, "vin_pixel_if1", 0,
>> +                   JH7110_ISPCLK_MIPI_RX0_PXL),
>> +       JH71X0_GATE(JH7110_ISPCLK_VIN_PIXEL_IF2, "vin_pixel_if2", 0,
>> +                   JH7110_ISPCLK_MIPI_RX0_PXL),
>> +       JH71X0_GATE(JH7110_ISPCLK_VIN_PIXEL_IF3, "vin_pixel_if3", 0,
>> +                   JH7110_ISPCLK_MIPI_RX0_PXL),
>> +       JH71X0__MUX(JH7110_ISPCLK_VIN_P_AXI_WR, "vin_p_axi_wr", 2,
>> +                   JH7110_ISPCLK_MIPI_RX0_PXL,
>> +                   JH7110_ISPCLK_DVP_INV),
>> +       /* ispv2_top_wrapper */
>> +       JH71X0_GMUX(JH7110_ISPCLK_ISPV2_TOP_WRAPPER_C, "ispv2_top_wrapper_c", 0, 2,
>> +                   JH7110_ISPCLK_MIPI_RX0_PXL,
>> +                   JH7110_ISPCLK_DVP_INV),
>> +};
>> +
>> +static inline int jh7110_isp_top_rst_init(struct jh71x0_clk_priv *priv)
>> +{
>> +       struct reset_control *top_rsts;
>> +
>> +       /* The resets should be shared and other ISP modules will use its. */
>> +       top_rsts = devm_reset_control_array_get_shared(priv->dev);
>> +       if (IS_ERR(top_rsts))
>> +               return dev_err_probe(priv->dev, PTR_ERR(top_rsts),
>> +                                    "failed to get top resets\n");
>> +
>> +       return reset_control_deassert(top_rsts);
>> +}
>> +
>> +static struct clk_hw *jh7110_ispclk_get(struct of_phandle_args *clkspec, void *data)
>> +{
>> +       struct jh71x0_clk_priv *priv = data;
>> +       unsigned int idx = clkspec->args[0];
>> +
>> +       if (idx < JH7110_ISPCLK_END)
>> +               return &priv->reg[idx].hw;
>> +
>> +       return ERR_PTR(-EINVAL);
>> +}
>> +
>> +#ifdef CONFIG_PM
>> +static int jh7110_ispcrg_suspend(struct device *dev)
>> +{
>> +       struct top_sysclk *top = dev_get_drvdata(dev);
>> +
>> +       clk_bulk_disable_unprepare(top->top_clks_num, top->top_clks);
>> +
>> +       return 0;
>> +}
>> +
>> +static int jh7110_ispcrg_resume(struct device *dev)
>> +{
>> +       struct top_sysclk *top = dev_get_drvdata(dev);
>> +
>> +       return clk_bulk_prepare_enable(top->top_clks_num, top->top_clks);
>> +}
>> +#endif
>> +
>> +static const struct dev_pm_ops jh7110_ispcrg_pm_ops = {
>> +       SET_RUNTIME_PM_OPS(jh7110_ispcrg_suspend, jh7110_ispcrg_resume, NULL)
>> +};
>> +
>> +static int jh7110_ispcrg_probe(struct platform_device *pdev)
>> +{
>> +       struct jh71x0_clk_priv *priv;
>> +       struct top_sysclk *top;
>> +       unsigned int idx;
>> +       int ret;
>> +
>> +       priv = devm_kzalloc(&pdev->dev,
>> +                           struct_size(priv, reg, JH7110_ISPCLK_END),
>> +                           GFP_KERNEL);
>> +       if (!priv)
>> +               return -ENOMEM;
>> +
>> +       top = devm_kzalloc(&pdev->dev, sizeof(*top), GFP_KERNEL);
>> +       if (!top)
>> +               return -ENOMEM;
>> +
>> +       spin_lock_init(&priv->rmw_lock);
>> +       priv->dev = &pdev->dev;
>> +       priv->base = devm_platform_ioremap_resource(pdev, 0);
>> +       if (IS_ERR(priv->base))
>> +               return PTR_ERR(priv->base);
>> +
>> +       top->top_clks = jh7110_isp_top_clks;
>> +       top->top_clks_num = ARRAY_SIZE(jh7110_isp_top_clks);
>> +       ret = devm_clk_bulk_get(priv->dev, top->top_clks_num, top->top_clks);
>> +       if (ret)
>> +               return dev_err_probe(priv->dev, ret, "failed to get main clocks\n");
>> +       dev_set_drvdata(priv->dev, top);
>> +
>> +       /* enable power domain and clocks */
>> +       pm_runtime_enable(priv->dev);
>> +       ret = pm_runtime_get_sync(priv->dev);
>> +       if (ret < 0)
>> +               return dev_err_probe(priv->dev, ret, "failed to turn on power\n");
>> +
>> +       ret = jh7110_isp_top_rst_init(priv);
>> +       if (ret)
>> +               goto err_exit;
>> +
>> +       for (idx = 0; idx < JH7110_ISPCLK_END; idx++) {
>> +               u32 max = jh7110_ispclk_data[idx].max;
>> +               struct clk_parent_data parents[4] = {};
>> +               struct clk_init_data init = {
>> +                       .name = jh7110_ispclk_data[idx].name,
>> +                       .ops = starfive_jh71x0_clk_ops(max),
>> +                       .parent_data = parents,
>> +                       .num_parents =
>> +                               ((max & JH71X0_CLK_MUX_MASK) >> JH71X0_CLK_MUX_SHIFT) + 1,
>> +                       .flags = jh7110_ispclk_data[idx].flags,
>> +               };
>> +               struct jh71x0_clk *clk = &priv->reg[idx];
>> +               unsigned int i;
>> +               const char *fw_name[JH7110_ISPCLK_EXT_END - JH7110_ISPCLK_END] = {
>> +                       "isp_top_core",
>> +                       "isp_top_axi",
>> +                       "noc_bus_isp_axi",
>> +                       "dvp_clk"
>> +               };
>> +
>> +               for (i = 0; i < init.num_parents; i++) {
>> +                       unsigned int pidx = jh7110_ispclk_data[idx].parents[i];
>> +
>> +                       if (pidx < JH7110_ISPCLK_END)
>> +                               parents[i].hw = &priv->reg[pidx].hw;
>> +                       else
>> +                               parents[i].fw_name = fw_name[pidx - JH7110_ISPCLK_END];
>> +               }
>> +
>> +               clk->hw.init = &init;
>> +               clk->idx = idx;
>> +               clk->max_div = max & JH71X0_CLK_DIV_MASK;
>> +
>> +               ret = devm_clk_hw_register(&pdev->dev, &clk->hw);
>> +               if (ret)
>> +                       goto err_exit;
>> +       }
>> +
>> +       ret = devm_of_clk_add_hw_provider(&pdev->dev, jh7110_ispclk_get, priv);
>> +       if (ret)
>> +               goto err_exit;
>> +
>> +       ret = jh7110_reset_controller_register(priv, "rst-isp", 3);
>> +       if (ret)
>> +               goto err_exit;
>> +
>> +       return 0;
>> +
>> +err_exit:
>> +       pm_runtime_put_sync(priv->dev);
>> +       pm_runtime_disable(priv->dev);
>> +       return ret;
>> +}
>> +
>> +static int jh7110_ispcrg_remove(struct platform_device *pdev)
>> +{
>> +       pm_runtime_put_sync(&pdev->dev);
>> +       pm_runtime_disable(&pdev->dev);
>> +
>> +       return 0;
>> +}
>> +
>> +static const struct of_device_id jh7110_ispcrg_match[] = {
>> +       { .compatible = "starfive,jh7110-ispcrg" },
>> +       { /* sentinel */ }
>> +};
>> +MODULE_DEVICE_TABLE(of, jh7110_ispcrg_match);
>> +
>> +static struct platform_driver jh7110_ispcrg_driver = {
>> +       .probe = jh7110_ispcrg_probe,
>> +       .remove = jh7110_ispcrg_remove,
>> +       .driver = {
>> +               .name = "clk-starfive-jh7110-isp",
>> +               .of_match_table = jh7110_ispcrg_match,
>> +               .pm = &jh7110_ispcrg_pm_ops,
>> +       },
>> +};
>> +module_platform_driver(jh7110_ispcrg_driver);
>> +
>> +MODULE_AUTHOR("Xingyu Wu <xingyu.wu@starfivetech.com>");
>> +MODULE_DESCRIPTION("StarFive JH7110 Image-Signal-Process clock driver");
>> +MODULE_LICENSE("GPL");
>> diff --git a/drivers/clk/starfive/clk-starfive-jh7110.h b/drivers/clk/starfive/clk-starfive-jh7110.h
>> index f29682b8d400..5425fd89394a 100644
>> --- a/drivers/clk/starfive/clk-starfive-jh7110.h
>> +++ b/drivers/clk/starfive/clk-starfive-jh7110.h
>> @@ -4,6 +4,12 @@
>>
>>  #include "clk-starfive-jh71x0.h"
>>
>> +/* top clocks of ISP/VOUT domain from SYSCRG */
>> +struct top_sysclk {
>> +       struct clk_bulk_data *top_clks;
>> +       int top_clks_num;
>> +};
>> +
> 
> When reviewing this I was very confused what data the vout and isp
> clocks need to share. But as far as I can tell they don't actually
> share any data, it's just that they both need a struct like this. I
> guess that's ok to put here, but it should really be prefixed with
> jh7110_ like the function below. Eg. struct jh7110_top_clks { .. }
> 
> With that fixed:
> Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
> 

Will fix. Thanks.

Best regards,
Xingyu Wu

>>  int jh7110_reset_controller_register(struct jh71x0_clk_priv *priv,
>>                                      const char *adev_name,
>>                                      u32 adev_id);

[PATCH v7 5/9] dt-bindings: clock: Add StarFive JH7110 Video-Output clock and reset generator

[Xingyu Wu]

Add bindings for the Video-Output clock and reset generator (VOUTCRG)
on the JH7110 RISC-V SoC by StarFive Ltd.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
---
 .../clock/starfive,jh7110-voutcrg.yaml        | 90 +++++++++++++++++++
 .../dt-bindings/clock/starfive,jh7110-crg.h   | 22 +++++
 .../dt-bindings/reset/starfive,jh7110-crg.h   | 16 ++++
 3 files changed, 128 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-voutcrg.yaml

diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-voutcrg.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-voutcrg.yaml
new file mode 100644
index 000000000000..af77bd8c86b1
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-voutcrg.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/starfive,jh7110-voutcrg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JH7110 Video-Output Clock and Reset Generator
+
+maintainers:
+  - Xingyu Wu <xingyu.wu@starfivetech.com>
+
+properties:
+  compatible:
+    const: starfive,jh7110-voutcrg
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Vout Top core
+      - description: Vout Top Ahb
+      - description: Vout Top Axi
+      - description: Vout Top HDMI MCLK
+      - description: I2STX0 BCLK
+      - description: external HDMI pixel
+
+  clock-names:
+    items:
+      - const: vout_src
+      - const: vout_top_ahb
+      - const: vout_top_axi
+      - const: vout_top_hdmitx0_mclk
+      - const: i2stx0_bclk
+      - const: hdmitx0_pixelclk
+
+  resets:
+    maxItems: 1
+    description: Vout Top core
+
+  '#clock-cells':
+    const: 1
+    description:
+      See <dt-bindings/clock/starfive,jh7110-crg.h> for valid indices.
+
+  '#reset-cells':
+    const: 1
+    description:
+      See <dt-bindings/reset/starfive,jh7110-crg.h> for valid indices.
+
+  power-domains:
+    maxItems: 1
+    description:
+      Vout domain power
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - resets
+  - '#clock-cells'
+  - '#reset-cells'
+  - power-domains
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/starfive,jh7110-crg.h>
+    #include <dt-bindings/power/starfive,jh7110-pmu.h>
+    #include <dt-bindings/reset/starfive,jh7110-crg.h>
+
+    voutcrg: clock-controller@295C0000 {
+        compatible = "starfive,jh7110-voutcrg";
+        reg = <0x295C0000 0x10000>;
+        clocks = <&syscrg JH7110_SYSCLK_VOUT_SRC>,
+                 <&syscrg JH7110_SYSCLK_VOUT_TOP_AHB>,
+                 <&syscrg JH7110_SYSCLK_VOUT_TOP_AXI>,
+                 <&syscrg JH7110_SYSCLK_VOUT_TOP_HDMITX0_MCLK>,
+                 <&syscrg JH7110_SYSCLK_I2STX0_BCLK>,
+                 <&hdmitx0_pixelclk>;
+        clock-names = "vout_src", "vout_top_ahb",
+                      "vout_top_axi", "vout_top_hdmitx0_mclk",
+                      "i2stx0_bclk", "hdmitx0_pixelclk";
+        resets = <&syscrg JH7110_SYSRST_VOUT_TOP_SRC>;
+        #clock-cells = <1>;
+        #reset-cells = <1>;
+        power-domains = <&pwrc JH7110_PD_VOUT>;
+    };
diff --git a/include/dt-bindings/clock/starfive,jh7110-crg.h b/include/dt-bindings/clock/starfive,jh7110-crg.h
index 39acf30db491..016227c64a27 100644
--- a/include/dt-bindings/clock/starfive,jh7110-crg.h
+++ b/include/dt-bindings/clock/starfive,jh7110-crg.h
@@ -270,4 +270,26 @@
 
 #define JH7110_ISPCLK_END			14
 
+/* VOUTCRG clocks */
+#define JH7110_VOUTCLK_APB			0
+#define JH7110_VOUTCLK_DC8200_PIX		1
+#define JH7110_VOUTCLK_DSI_SYS			2
+#define JH7110_VOUTCLK_TX_ESC			3
+#define JH7110_VOUTCLK_DC8200_AXI		4
+#define JH7110_VOUTCLK_DC8200_CORE		5
+#define JH7110_VOUTCLK_DC8200_AHB		6
+#define JH7110_VOUTCLK_DC8200_PIX0		7
+#define JH7110_VOUTCLK_DC8200_PIX1		8
+#define JH7110_VOUTCLK_DOM_VOUT_TOP_LCD		9
+#define JH7110_VOUTCLK_DSITX_APB		10
+#define JH7110_VOUTCLK_DSITX_SYS		11
+#define JH7110_VOUTCLK_DSITX_DPI		12
+#define JH7110_VOUTCLK_DSITX_TXESC		13
+#define JH7110_VOUTCLK_MIPITX_DPHY_TXESC	14
+#define JH7110_VOUTCLK_HDMI_TX_MCLK		15
+#define JH7110_VOUTCLK_HDMI_TX_BCLK		16
+#define JH7110_VOUTCLK_HDMI_TX_SYS		17
+
+#define JH7110_VOUTCLK_END			18
+
 #endif /* __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__ */
diff --git a/include/dt-bindings/reset/starfive,jh7110-crg.h b/include/dt-bindings/reset/starfive,jh7110-crg.h
index 2c5d9dcefffa..eaf4a0d84f6a 100644
--- a/include/dt-bindings/reset/starfive,jh7110-crg.h
+++ b/include/dt-bindings/reset/starfive,jh7110-crg.h
@@ -195,4 +195,20 @@
 
 #define JH7110_ISPRST_END			12
 
+/* VOUTCRG resets */
+#define JH7110_VOUTRST_DC8200_AXI		0
+#define JH7110_VOUTRST_DC8200_AHB		1
+#define JH7110_VOUTRST_DC8200_CORE		2
+#define JH7110_VOUTRST_DSITX_DPI		3
+#define JH7110_VOUTRST_DSITX_APB		4
+#define JH7110_VOUTRST_DSITX_RXESC		5
+#define JH7110_VOUTRST_DSITX_SYS		6
+#define JH7110_VOUTRST_DSITX_TXBYTEHS		7
+#define JH7110_VOUTRST_DSITX_TXESC		8
+#define JH7110_VOUTRST_HDMI_TX_HDMI		9
+#define JH7110_VOUTRST_MIPITX_DPHY_SYS		10
+#define JH7110_VOUTRST_MIPITX_DPHY_TXBYTEHS	11
+
+#define JH7110_VOUTRST_END			12
+
 #endif /* __DT_BINDINGS_RESET_STARFIVE_JH7110_CRG_H__ */
-- 
2.25.1

Re: [PATCH v7 5/9] dt-bindings: clock: Add StarFive JH7110 Video-Output clock and reset generator

[Emil Renner Berthing]

On Wed, 12 Jul 2023 at 11:22, Xingyu Wu <xingyu.wu@starfivetech.com> wrote:
>
> Add bindings for the Video-Output clock and reset generator (VOUTCRG)
> on the JH7110 RISC-V SoC by StarFive Ltd.
>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>

> Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
> ---
>  .../clock/starfive,jh7110-voutcrg.yaml        | 90 +++++++++++++++++++
>  .../dt-bindings/clock/starfive,jh7110-crg.h   | 22 +++++
>  .../dt-bindings/reset/starfive,jh7110-crg.h   | 16 ++++
>  3 files changed, 128 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-voutcrg.yaml
>
> diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-voutcrg.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-voutcrg.yaml
> new file mode 100644
> index 000000000000..af77bd8c86b1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-voutcrg.yaml
> @@ -0,0 +1,90 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/starfive,jh7110-voutcrg.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: StarFive JH7110 Video-Output Clock and Reset Generator
> +
> +maintainers:
> +  - Xingyu Wu <xingyu.wu@starfivetech.com>
> +
> +properties:
> +  compatible:
> +    const: starfive,jh7110-voutcrg
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: Vout Top core
> +      - description: Vout Top Ahb
> +      - description: Vout Top Axi
> +      - description: Vout Top HDMI MCLK
> +      - description: I2STX0 BCLK
> +      - description: external HDMI pixel
> +
> +  clock-names:
> +    items:
> +      - const: vout_src
> +      - const: vout_top_ahb
> +      - const: vout_top_axi
> +      - const: vout_top_hdmitx0_mclk
> +      - const: i2stx0_bclk
> +      - const: hdmitx0_pixelclk
> +
> +  resets:
> +    maxItems: 1
> +    description: Vout Top core
> +
> +  '#clock-cells':
> +    const: 1
> +    description:
> +      See <dt-bindings/clock/starfive,jh7110-crg.h> for valid indices.
> +
> +  '#reset-cells':
> +    const: 1
> +    description:
> +      See <dt-bindings/reset/starfive,jh7110-crg.h> for valid indices.
> +
> +  power-domains:
> +    maxItems: 1
> +    description:
> +      Vout domain power
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - resets
> +  - '#clock-cells'
> +  - '#reset-cells'
> +  - power-domains
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/starfive,jh7110-crg.h>
> +    #include <dt-bindings/power/starfive,jh7110-pmu.h>
> +    #include <dt-bindings/reset/starfive,jh7110-crg.h>
> +
> +    voutcrg: clock-controller@295C0000 {
> +        compatible = "starfive,jh7110-voutcrg";
> +        reg = <0x295C0000 0x10000>;
> +        clocks = <&syscrg JH7110_SYSCLK_VOUT_SRC>,
> +                 <&syscrg JH7110_SYSCLK_VOUT_TOP_AHB>,
> +                 <&syscrg JH7110_SYSCLK_VOUT_TOP_AXI>,
> +                 <&syscrg JH7110_SYSCLK_VOUT_TOP_HDMITX0_MCLK>,
> +                 <&syscrg JH7110_SYSCLK_I2STX0_BCLK>,
> +                 <&hdmitx0_pixelclk>;
> +        clock-names = "vout_src", "vout_top_ahb",
> +                      "vout_top_axi", "vout_top_hdmitx0_mclk",
> +                      "i2stx0_bclk", "hdmitx0_pixelclk";
> +        resets = <&syscrg JH7110_SYSRST_VOUT_TOP_SRC>;
> +        #clock-cells = <1>;
> +        #reset-cells = <1>;
> +        power-domains = <&pwrc JH7110_PD_VOUT>;
> +    };
> diff --git a/include/dt-bindings/clock/starfive,jh7110-crg.h b/include/dt-bindings/clock/starfive,jh7110-crg.h
> index 39acf30db491..016227c64a27 100644
> --- a/include/dt-bindings/clock/starfive,jh7110-crg.h
> +++ b/include/dt-bindings/clock/starfive,jh7110-crg.h
> @@ -270,4 +270,26 @@
>
>  #define JH7110_ISPCLK_END                      14
>
> +/* VOUTCRG clocks */
> +#define JH7110_VOUTCLK_APB                     0
> +#define JH7110_VOUTCLK_DC8200_PIX              1
> +#define JH7110_VOUTCLK_DSI_SYS                 2
> +#define JH7110_VOUTCLK_TX_ESC                  3
> +#define JH7110_VOUTCLK_DC8200_AXI              4
> +#define JH7110_VOUTCLK_DC8200_CORE             5
> +#define JH7110_VOUTCLK_DC8200_AHB              6
> +#define JH7110_VOUTCLK_DC8200_PIX0             7
> +#define JH7110_VOUTCLK_DC8200_PIX1             8
> +#define JH7110_VOUTCLK_DOM_VOUT_TOP_LCD                9
> +#define JH7110_VOUTCLK_DSITX_APB               10
> +#define JH7110_VOUTCLK_DSITX_SYS               11
> +#define JH7110_VOUTCLK_DSITX_DPI               12
> +#define JH7110_VOUTCLK_DSITX_TXESC             13
> +#define JH7110_VOUTCLK_MIPITX_DPHY_TXESC       14
> +#define JH7110_VOUTCLK_HDMI_TX_MCLK            15
> +#define JH7110_VOUTCLK_HDMI_TX_BCLK            16
> +#define JH7110_VOUTCLK_HDMI_TX_SYS             17
> +
> +#define JH7110_VOUTCLK_END                     18
> +
>  #endif /* __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__ */
> diff --git a/include/dt-bindings/reset/starfive,jh7110-crg.h b/include/dt-bindings/reset/starfive,jh7110-crg.h
> index 2c5d9dcefffa..eaf4a0d84f6a 100644
> --- a/include/dt-bindings/reset/starfive,jh7110-crg.h
> +++ b/include/dt-bindings/reset/starfive,jh7110-crg.h
> @@ -195,4 +195,20 @@
>
>  #define JH7110_ISPRST_END                      12
>
> +/* VOUTCRG resets */
> +#define JH7110_VOUTRST_DC8200_AXI              0
> +#define JH7110_VOUTRST_DC8200_AHB              1
> +#define JH7110_VOUTRST_DC8200_CORE             2
> +#define JH7110_VOUTRST_DSITX_DPI               3
> +#define JH7110_VOUTRST_DSITX_APB               4
> +#define JH7110_VOUTRST_DSITX_RXESC             5
> +#define JH7110_VOUTRST_DSITX_SYS               6
> +#define JH7110_VOUTRST_DSITX_TXBYTEHS          7
> +#define JH7110_VOUTRST_DSITX_TXESC             8
> +#define JH7110_VOUTRST_HDMI_TX_HDMI            9
> +#define JH7110_VOUTRST_MIPITX_DPHY_SYS         10
> +#define JH7110_VOUTRST_MIPITX_DPHY_TXBYTEHS    11
> +
> +#define JH7110_VOUTRST_END                     12
> +
>  #endif /* __DT_BINDINGS_RESET_STARFIVE_JH7110_CRG_H__ */
> --
> 2.25.1
>
>
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv

[PATCH v7 6/9] clk: starfive: Add StarFive JH7110 Video-Output clock driver

[Xingyu Wu]

Add driver for the StarFive JH7110 Video-Output clock controller.
And these clock controllers should power on and enable the clocks from
SYSCRG first before registering.

Reviewed-by: Hal Feng <hal.feng@starfivetech.com>
Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
---
 drivers/clk/starfive/Kconfig                  |   8 +
 drivers/clk/starfive/Makefile                 |   1 +
 .../clk/starfive/clk-starfive-jh7110-vout.c   | 239 ++++++++++++++++++
 3 files changed, 248 insertions(+)
 create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-vout.c

diff --git a/drivers/clk/starfive/Kconfig b/drivers/clk/starfive/Kconfig
index 13b4d08cbcd2..3fa983eb7d32 100644
--- a/drivers/clk/starfive/Kconfig
+++ b/drivers/clk/starfive/Kconfig
@@ -55,3 +55,11 @@ config CLK_STARFIVE_JH7110_ISP
 	help
 	  Say yes here to support the Image-Signal-Process clock controller
 	  on the StarFive JH7110 SoC.
+
+config CLK_STARFIVE_JH7110_VOUT
+	tristate "StarFive JH7110 Video-Output clock support"
+	depends on CLK_STARFIVE_JH7110_SYS && JH71XX_PMU
+	default m if ARCH_STARFIVE
+	help
+	  Say yes here to support the Video-Output clock controller
+	  on the StarFive JH7110 SoC.
diff --git a/drivers/clk/starfive/Makefile b/drivers/clk/starfive/Makefile
index 76fb9f8d628b..841377e45bb6 100644
--- a/drivers/clk/starfive/Makefile
+++ b/drivers/clk/starfive/Makefile
@@ -8,3 +8,4 @@ obj-$(CONFIG_CLK_STARFIVE_JH7110_SYS)	+= clk-starfive-jh7110-sys.o
 obj-$(CONFIG_CLK_STARFIVE_JH7110_AON)	+= clk-starfive-jh7110-aon.o
 obj-$(CONFIG_CLK_STARFIVE_JH7110_STG)	+= clk-starfive-jh7110-stg.o
 obj-$(CONFIG_CLK_STARFIVE_JH7110_ISP)	+= clk-starfive-jh7110-isp.o
+obj-$(CONFIG_CLK_STARFIVE_JH7110_VOUT)	+= clk-starfive-jh7110-vout.o
diff --git a/drivers/clk/starfive/clk-starfive-jh7110-vout.c b/drivers/clk/starfive/clk-starfive-jh7110-vout.c
new file mode 100644
index 000000000000..743840e03d81
--- /dev/null
+++ b/drivers/clk/starfive/clk-starfive-jh7110-vout.c
@@ -0,0 +1,239 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * StarFive JH7110 Video-Output Clock Driver
+ *
+ * Copyright (C) 2022-2023 StarFive Technology Co., Ltd.
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+
+#include <dt-bindings/clock/starfive,jh7110-crg.h>
+
+#include "clk-starfive-jh7110.h"
+
+/* external clocks */
+#define JH7110_VOUTCLK_VOUT_SRC			(JH7110_VOUTCLK_END + 0)
+#define JH7110_VOUTCLK_VOUT_TOP_AHB		(JH7110_VOUTCLK_END + 1)
+#define JH7110_VOUTCLK_VOUT_TOP_AXI		(JH7110_VOUTCLK_END + 2)
+#define JH7110_VOUTCLK_VOUT_TOP_HDMITX0_MCLK	(JH7110_VOUTCLK_END + 3)
+#define JH7110_VOUTCLK_I2STX0_BCLK		(JH7110_VOUTCLK_END + 4)
+#define JH7110_VOUTCLK_HDMITX0_PIXELCLK		(JH7110_VOUTCLK_END + 5)
+#define JH7110_VOUTCLK_EXT_END			(JH7110_VOUTCLK_END + 6)
+
+static struct clk_bulk_data jh7110_vout_top_clks[] = {
+	{ .id = "vout_src" },
+	{ .id = "vout_top_ahb" }
+};
+
+static const struct jh71x0_clk_data jh7110_voutclk_data[] = {
+	/* divider */
+	JH71X0__DIV(JH7110_VOUTCLK_APB, "apb", 8, JH7110_VOUTCLK_VOUT_TOP_AHB),
+	JH71X0__DIV(JH7110_VOUTCLK_DC8200_PIX, "dc8200_pix", 63, JH7110_VOUTCLK_VOUT_SRC),
+	JH71X0__DIV(JH7110_VOUTCLK_DSI_SYS, "dsi_sys", 31, JH7110_VOUTCLK_VOUT_SRC),
+	JH71X0__DIV(JH7110_VOUTCLK_TX_ESC, "tx_esc", 31, JH7110_VOUTCLK_VOUT_TOP_AHB),
+	/* dc8200 */
+	JH71X0_GATE(JH7110_VOUTCLK_DC8200_AXI, "dc8200_axi", 0, JH7110_VOUTCLK_VOUT_TOP_AXI),
+	JH71X0_GATE(JH7110_VOUTCLK_DC8200_CORE, "dc8200_core", 0, JH7110_VOUTCLK_VOUT_TOP_AXI),
+	JH71X0_GATE(JH7110_VOUTCLK_DC8200_AHB, "dc8200_ahb", 0, JH7110_VOUTCLK_VOUT_TOP_AHB),
+	JH71X0_GMUX(JH7110_VOUTCLK_DC8200_PIX0, "dc8200_pix0", 0, 2,
+		    JH7110_VOUTCLK_DC8200_PIX,
+		    JH7110_VOUTCLK_HDMITX0_PIXELCLK),
+	JH71X0_GMUX(JH7110_VOUTCLK_DC8200_PIX1, "dc8200_pix1", 0, 2,
+		    JH7110_VOUTCLK_DC8200_PIX,
+		    JH7110_VOUTCLK_HDMITX0_PIXELCLK),
+	/* LCD */
+	JH71X0_GMUX(JH7110_VOUTCLK_DOM_VOUT_TOP_LCD, "dom_vout_top_lcd", 0, 2,
+		    JH7110_VOUTCLK_DC8200_PIX0,
+		    JH7110_VOUTCLK_DC8200_PIX1),
+	/* dsiTx */
+	JH71X0_GATE(JH7110_VOUTCLK_DSITX_APB, "dsiTx_apb", 0, JH7110_VOUTCLK_DSI_SYS),
+	JH71X0_GATE(JH7110_VOUTCLK_DSITX_SYS, "dsiTx_sys", 0, JH7110_VOUTCLK_DSI_SYS),
+	JH71X0_GMUX(JH7110_VOUTCLK_DSITX_DPI, "dsiTx_dpi", 0, 2,
+		    JH7110_VOUTCLK_DC8200_PIX,
+		    JH7110_VOUTCLK_HDMITX0_PIXELCLK),
+	JH71X0_GATE(JH7110_VOUTCLK_DSITX_TXESC, "dsiTx_txesc", 0, JH7110_VOUTCLK_TX_ESC),
+	/* mipitx DPHY */
+	JH71X0_GATE(JH7110_VOUTCLK_MIPITX_DPHY_TXESC, "mipitx_dphy_txesc", 0,
+		    JH7110_VOUTCLK_TX_ESC),
+	/* hdmi */
+	JH71X0_GATE(JH7110_VOUTCLK_HDMI_TX_MCLK, "hdmi_tx_mclk", 0,
+		    JH7110_VOUTCLK_VOUT_TOP_HDMITX0_MCLK),
+	JH71X0_GATE(JH7110_VOUTCLK_HDMI_TX_BCLK, "hdmi_tx_bclk", 0,
+		    JH7110_VOUTCLK_I2STX0_BCLK),
+	JH71X0_GATE(JH7110_VOUTCLK_HDMI_TX_SYS, "hdmi_tx_sys", 0, JH7110_VOUTCLK_APB),
+};
+
+static int jh7110_vout_top_rst_init(struct jh71x0_clk_priv *priv)
+{
+	struct reset_control *top_rst;
+
+	/* The reset should be shared and other Vout modules will use its. */
+	top_rst = devm_reset_control_get_shared(priv->dev, NULL);
+	if (IS_ERR(top_rst))
+		return dev_err_probe(priv->dev, PTR_ERR(top_rst), "failed to get top reset\n");
+
+	return reset_control_deassert(top_rst);
+}
+
+static struct clk_hw *jh7110_voutclk_get(struct of_phandle_args *clkspec, void *data)
+{
+	struct jh71x0_clk_priv *priv = data;
+	unsigned int idx = clkspec->args[0];
+
+	if (idx < JH7110_VOUTCLK_END)
+		return &priv->reg[idx].hw;
+
+	return ERR_PTR(-EINVAL);
+}
+
+#ifdef CONFIG_PM
+static int jh7110_voutcrg_suspend(struct device *dev)
+{
+	struct top_sysclk *top = dev_get_drvdata(dev);
+
+	clk_bulk_disable_unprepare(top->top_clks_num, top->top_clks);
+
+	return 0;
+}
+
+static int jh7110_voutcrg_resume(struct device *dev)
+{
+	struct top_sysclk *top = dev_get_drvdata(dev);
+
+	return clk_bulk_prepare_enable(top->top_clks_num, top->top_clks);
+}
+#endif
+
+static const struct dev_pm_ops jh7110_voutcrg_pm_ops = {
+	SET_RUNTIME_PM_OPS(jh7110_voutcrg_suspend, jh7110_voutcrg_resume, NULL)
+};
+
+static int jh7110_voutcrg_probe(struct platform_device *pdev)
+{
+	struct jh71x0_clk_priv *priv;
+	struct top_sysclk *top;
+	unsigned int idx;
+	int ret;
+
+	priv = devm_kzalloc(&pdev->dev,
+			    struct_size(priv, reg, JH7110_VOUTCLK_END),
+			    GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	top = devm_kzalloc(&pdev->dev, sizeof(*top), GFP_KERNEL);
+	if (!top)
+		return -ENOMEM;
+
+	spin_lock_init(&priv->rmw_lock);
+	priv->dev = &pdev->dev;
+	priv->base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(priv->base))
+		return PTR_ERR(priv->base);
+
+	top->top_clks = jh7110_vout_top_clks;
+	top->top_clks_num = ARRAY_SIZE(jh7110_vout_top_clks);
+	ret = devm_clk_bulk_get(priv->dev, top->top_clks_num, top->top_clks);
+	if (ret)
+		return dev_err_probe(priv->dev, ret, "failed to get top clocks\n");
+	dev_set_drvdata(priv->dev, top);
+
+	/* enable power domain and clocks */
+	pm_runtime_enable(priv->dev);
+	ret = pm_runtime_get_sync(priv->dev);
+	if (ret < 0)
+		return dev_err_probe(priv->dev, ret, "failed to turn on power\n");
+
+	ret = jh7110_vout_top_rst_init(priv);
+	if (ret)
+		goto err_exit;
+
+	for (idx = 0; idx < JH7110_VOUTCLK_END; idx++) {
+		u32 max = jh7110_voutclk_data[idx].max;
+		struct clk_parent_data parents[4] = {};
+		struct clk_init_data init = {
+			.name = jh7110_voutclk_data[idx].name,
+			.ops = starfive_jh71x0_clk_ops(max),
+			.parent_data = parents,
+			.num_parents =
+				((max & JH71X0_CLK_MUX_MASK) >> JH71X0_CLK_MUX_SHIFT) + 1,
+			.flags = jh7110_voutclk_data[idx].flags,
+		};
+		struct jh71x0_clk *clk = &priv->reg[idx];
+		unsigned int i;
+		const char *fw_name[JH7110_VOUTCLK_EXT_END - JH7110_VOUTCLK_END] = {
+			"vout_src",
+			"vout_top_ahb",
+			"vout_top_axi",
+			"vout_top_hdmitx0_mclk",
+			"i2stx0_bclk",
+			"hdmitx0_pixelclk"
+		};
+
+		for (i = 0; i < init.num_parents; i++) {
+			unsigned int pidx = jh7110_voutclk_data[idx].parents[i];
+
+			if (pidx < JH7110_VOUTCLK_END)
+				parents[i].hw = &priv->reg[pidx].hw;
+			else if (pidx < JH7110_VOUTCLK_EXT_END)
+				parents[i].fw_name = fw_name[pidx - JH7110_VOUTCLK_END];
+		}
+
+		clk->hw.init = &init;
+		clk->idx = idx;
+		clk->max_div = max & JH71X0_CLK_DIV_MASK;
+
+		ret = devm_clk_hw_register(&pdev->dev, &clk->hw);
+		if (ret)
+			goto err_exit;
+	}
+
+	ret = devm_of_clk_add_hw_provider(&pdev->dev, jh7110_voutclk_get, priv);
+	if (ret)
+		goto err_exit;
+
+	ret = jh7110_reset_controller_register(priv, "rst-vo", 4);
+	if (ret)
+		goto err_exit;
+
+	return 0;
+
+err_exit:
+	pm_runtime_put_sync(priv->dev);
+	pm_runtime_disable(priv->dev);
+	return ret;
+}
+
+static int jh7110_voutcrg_remove(struct platform_device *pdev)
+{
+	pm_runtime_put_sync(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
+static const struct of_device_id jh7110_voutcrg_match[] = {
+	{ .compatible = "starfive,jh7110-voutcrg" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, jh7110_voutcrg_match);
+
+static struct platform_driver jh7110_voutcrg_driver = {
+	.probe = jh7110_voutcrg_probe,
+	.remove = jh7110_voutcrg_remove,
+	.driver = {
+		.name = "clk-starfive-jh7110-vout",
+		.of_match_table = jh7110_voutcrg_match,
+		.pm = &jh7110_voutcrg_pm_ops,
+	},
+};
+module_platform_driver(jh7110_voutcrg_driver);
+
+MODULE_AUTHOR("Xingyu Wu <xingyu.wu@starfivetech.com>");
+MODULE_DESCRIPTION("StarFive JH7110 Video-Output clock driver");
+MODULE_LICENSE("GPL");
-- 
2.25.1

Re: [PATCH v7 6/9] clk: starfive: Add StarFive JH7110 Video-Output clock driver

[Emil Renner Berthing]

On Wed, 12 Jul 2023 at 11:22, Xingyu Wu <xingyu.wu@starfivetech.com> wrote:
>
> Add driver for the StarFive JH7110 Video-Output clock controller.
> And these clock controllers should power on and enable the clocks from
> SYSCRG first before registering.
>
> Reviewed-by: Hal Feng <hal.feng@starfivetech.com>
> Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
> ---
>  drivers/clk/starfive/Kconfig                  |   8 +
>  drivers/clk/starfive/Makefile                 |   1 +
>  .../clk/starfive/clk-starfive-jh7110-vout.c   | 239 ++++++++++++++++++
>  3 files changed, 248 insertions(+)
>  create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-vout.c
>
> diff --git a/drivers/clk/starfive/Kconfig b/drivers/clk/starfive/Kconfig
> index 13b4d08cbcd2..3fa983eb7d32 100644
> --- a/drivers/clk/starfive/Kconfig
> +++ b/drivers/clk/starfive/Kconfig
> @@ -55,3 +55,11 @@ config CLK_STARFIVE_JH7110_ISP
>         help
>           Say yes here to support the Image-Signal-Process clock controller
>           on the StarFive JH7110 SoC.
> +
> +config CLK_STARFIVE_JH7110_VOUT
> +       tristate "StarFive JH7110 Video-Output clock support"
> +       depends on CLK_STARFIVE_JH7110_SYS && JH71XX_PMU
> +       default m if ARCH_STARFIVE
> +       help
> +         Say yes here to support the Video-Output clock controller
> +         on the StarFive JH7110 SoC.
> diff --git a/drivers/clk/starfive/Makefile b/drivers/clk/starfive/Makefile
> index 76fb9f8d628b..841377e45bb6 100644
> --- a/drivers/clk/starfive/Makefile
> +++ b/drivers/clk/starfive/Makefile
> @@ -8,3 +8,4 @@ obj-$(CONFIG_CLK_STARFIVE_JH7110_SYS)   += clk-starfive-jh7110-sys.o
>  obj-$(CONFIG_CLK_STARFIVE_JH7110_AON)  += clk-starfive-jh7110-aon.o
>  obj-$(CONFIG_CLK_STARFIVE_JH7110_STG)  += clk-starfive-jh7110-stg.o
>  obj-$(CONFIG_CLK_STARFIVE_JH7110_ISP)  += clk-starfive-jh7110-isp.o
> +obj-$(CONFIG_CLK_STARFIVE_JH7110_VOUT) += clk-starfive-jh7110-vout.o
> diff --git a/drivers/clk/starfive/clk-starfive-jh7110-vout.c b/drivers/clk/starfive/clk-starfive-jh7110-vout.c
> new file mode 100644
> index 000000000000..743840e03d81
> --- /dev/null
> +++ b/drivers/clk/starfive/clk-starfive-jh7110-vout.c
> @@ -0,0 +1,239 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * StarFive JH7110 Video-Output Clock Driver
> + *
> + * Copyright (C) 2022-2023 StarFive Technology Co., Ltd.
> + */
> +
> +#include <linux/clk.h>
> +#include <linux/clk-provider.h>
> +#include <linux/io.h>
> +#include <linux/platform_device.h>
> +#include <linux/pm_runtime.h>
> +#include <linux/reset.h>
> +
> +#include <dt-bindings/clock/starfive,jh7110-crg.h>
> +
> +#include "clk-starfive-jh7110.h"
> +
> +/* external clocks */
> +#define JH7110_VOUTCLK_VOUT_SRC                        (JH7110_VOUTCLK_END + 0)
> +#define JH7110_VOUTCLK_VOUT_TOP_AHB            (JH7110_VOUTCLK_END + 1)
> +#define JH7110_VOUTCLK_VOUT_TOP_AXI            (JH7110_VOUTCLK_END + 2)
> +#define JH7110_VOUTCLK_VOUT_TOP_HDMITX0_MCLK   (JH7110_VOUTCLK_END + 3)
> +#define JH7110_VOUTCLK_I2STX0_BCLK             (JH7110_VOUTCLK_END + 4)
> +#define JH7110_VOUTCLK_HDMITX0_PIXELCLK                (JH7110_VOUTCLK_END + 5)
> +#define JH7110_VOUTCLK_EXT_END                 (JH7110_VOUTCLK_END + 6)
> +
> +static struct clk_bulk_data jh7110_vout_top_clks[] = {
> +       { .id = "vout_src" },
> +       { .id = "vout_top_ahb" }
> +};
> +
> +static const struct jh71x0_clk_data jh7110_voutclk_data[] = {
> +       /* divider */
> +       JH71X0__DIV(JH7110_VOUTCLK_APB, "apb", 8, JH7110_VOUTCLK_VOUT_TOP_AHB),
> +       JH71X0__DIV(JH7110_VOUTCLK_DC8200_PIX, "dc8200_pix", 63, JH7110_VOUTCLK_VOUT_SRC),
> +       JH71X0__DIV(JH7110_VOUTCLK_DSI_SYS, "dsi_sys", 31, JH7110_VOUTCLK_VOUT_SRC),
> +       JH71X0__DIV(JH7110_VOUTCLK_TX_ESC, "tx_esc", 31, JH7110_VOUTCLK_VOUT_TOP_AHB),
> +       /* dc8200 */
> +       JH71X0_GATE(JH7110_VOUTCLK_DC8200_AXI, "dc8200_axi", 0, JH7110_VOUTCLK_VOUT_TOP_AXI),
> +       JH71X0_GATE(JH7110_VOUTCLK_DC8200_CORE, "dc8200_core", 0, JH7110_VOUTCLK_VOUT_TOP_AXI),
> +       JH71X0_GATE(JH7110_VOUTCLK_DC8200_AHB, "dc8200_ahb", 0, JH7110_VOUTCLK_VOUT_TOP_AHB),
> +       JH71X0_GMUX(JH7110_VOUTCLK_DC8200_PIX0, "dc8200_pix0", 0, 2,
> +                   JH7110_VOUTCLK_DC8200_PIX,
> +                   JH7110_VOUTCLK_HDMITX0_PIXELCLK),
> +       JH71X0_GMUX(JH7110_VOUTCLK_DC8200_PIX1, "dc8200_pix1", 0, 2,
> +                   JH7110_VOUTCLK_DC8200_PIX,
> +                   JH7110_VOUTCLK_HDMITX0_PIXELCLK),
> +       /* LCD */
> +       JH71X0_GMUX(JH7110_VOUTCLK_DOM_VOUT_TOP_LCD, "dom_vout_top_lcd", 0, 2,
> +                   JH7110_VOUTCLK_DC8200_PIX0,
> +                   JH7110_VOUTCLK_DC8200_PIX1),
> +       /* dsiTx */
> +       JH71X0_GATE(JH7110_VOUTCLK_DSITX_APB, "dsiTx_apb", 0, JH7110_VOUTCLK_DSI_SYS),
> +       JH71X0_GATE(JH7110_VOUTCLK_DSITX_SYS, "dsiTx_sys", 0, JH7110_VOUTCLK_DSI_SYS),
> +       JH71X0_GMUX(JH7110_VOUTCLK_DSITX_DPI, "dsiTx_dpi", 0, 2,
> +                   JH7110_VOUTCLK_DC8200_PIX,
> +                   JH7110_VOUTCLK_HDMITX0_PIXELCLK),
> +       JH71X0_GATE(JH7110_VOUTCLK_DSITX_TXESC, "dsiTx_txesc", 0, JH7110_VOUTCLK_TX_ESC),
> +       /* mipitx DPHY */
> +       JH71X0_GATE(JH7110_VOUTCLK_MIPITX_DPHY_TXESC, "mipitx_dphy_txesc", 0,
> +                   JH7110_VOUTCLK_TX_ESC),
> +       /* hdmi */
> +       JH71X0_GATE(JH7110_VOUTCLK_HDMI_TX_MCLK, "hdmi_tx_mclk", 0,
> +                   JH7110_VOUTCLK_VOUT_TOP_HDMITX0_MCLK),
> +       JH71X0_GATE(JH7110_VOUTCLK_HDMI_TX_BCLK, "hdmi_tx_bclk", 0,
> +                   JH7110_VOUTCLK_I2STX0_BCLK),
> +       JH71X0_GATE(JH7110_VOUTCLK_HDMI_TX_SYS, "hdmi_tx_sys", 0, JH7110_VOUTCLK_APB),
> +};
> +
> +static int jh7110_vout_top_rst_init(struct jh71x0_clk_priv *priv)
> +{
> +       struct reset_control *top_rst;
> +
> +       /* The reset should be shared and other Vout modules will use its. */
> +       top_rst = devm_reset_control_get_shared(priv->dev, NULL);
> +       if (IS_ERR(top_rst))
> +               return dev_err_probe(priv->dev, PTR_ERR(top_rst), "failed to get top reset\n");
> +
> +       return reset_control_deassert(top_rst);
> +}
> +
> +static struct clk_hw *jh7110_voutclk_get(struct of_phandle_args *clkspec, void *data)
> +{
> +       struct jh71x0_clk_priv *priv = data;
> +       unsigned int idx = clkspec->args[0];
> +
> +       if (idx < JH7110_VOUTCLK_END)
> +               return &priv->reg[idx].hw;
> +
> +       return ERR_PTR(-EINVAL);
> +}
> +
> +#ifdef CONFIG_PM
> +static int jh7110_voutcrg_suspend(struct device *dev)
> +{
> +       struct top_sysclk *top = dev_get_drvdata(dev);
> +
> +       clk_bulk_disable_unprepare(top->top_clks_num, top->top_clks);
> +
> +       return 0;
> +}
> +
> +static int jh7110_voutcrg_resume(struct device *dev)
> +{
> +       struct top_sysclk *top = dev_get_drvdata(dev);
> +
> +       return clk_bulk_prepare_enable(top->top_clks_num, top->top_clks);
> +}
> +#endif

nit: you could move this #endif down below jh7110_voutcrg_pm_ops, and then do

  .pm = pm_ptr(&jh7110_voutcrg_pm_ops),

In any case
Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>

> +static const struct dev_pm_ops jh7110_voutcrg_pm_ops = {
> +       SET_RUNTIME_PM_OPS(jh7110_voutcrg_suspend, jh7110_voutcrg_resume, NULL)
> +};
> +
> +static int jh7110_voutcrg_probe(struct platform_device *pdev)
> +{
> +       struct jh71x0_clk_priv *priv;
> +       struct top_sysclk *top;
> +       unsigned int idx;
> +       int ret;
> +
> +       priv = devm_kzalloc(&pdev->dev,
> +                           struct_size(priv, reg, JH7110_VOUTCLK_END),
> +                           GFP_KERNEL);
> +       if (!priv)
> +               return -ENOMEM;
> +
> +       top = devm_kzalloc(&pdev->dev, sizeof(*top), GFP_KERNEL);
> +       if (!top)
> +               return -ENOMEM;
> +
> +       spin_lock_init(&priv->rmw_lock);
> +       priv->dev = &pdev->dev;
> +       priv->base = devm_platform_ioremap_resource(pdev, 0);
> +       if (IS_ERR(priv->base))
> +               return PTR_ERR(priv->base);
> +
> +       top->top_clks = jh7110_vout_top_clks;
> +       top->top_clks_num = ARRAY_SIZE(jh7110_vout_top_clks);
> +       ret = devm_clk_bulk_get(priv->dev, top->top_clks_num, top->top_clks);
> +       if (ret)
> +               return dev_err_probe(priv->dev, ret, "failed to get top clocks\n");
> +       dev_set_drvdata(priv->dev, top);
> +
> +       /* enable power domain and clocks */
> +       pm_runtime_enable(priv->dev);
> +       ret = pm_runtime_get_sync(priv->dev);
> +       if (ret < 0)
> +               return dev_err_probe(priv->dev, ret, "failed to turn on power\n");
> +
> +       ret = jh7110_vout_top_rst_init(priv);
> +       if (ret)
> +               goto err_exit;
> +
> +       for (idx = 0; idx < JH7110_VOUTCLK_END; idx++) {
> +               u32 max = jh7110_voutclk_data[idx].max;
> +               struct clk_parent_data parents[4] = {};
> +               struct clk_init_data init = {
> +                       .name = jh7110_voutclk_data[idx].name,
> +                       .ops = starfive_jh71x0_clk_ops(max),
> +                       .parent_data = parents,
> +                       .num_parents =
> +                               ((max & JH71X0_CLK_MUX_MASK) >> JH71X0_CLK_MUX_SHIFT) + 1,
> +                       .flags = jh7110_voutclk_data[idx].flags,
> +               };
> +               struct jh71x0_clk *clk = &priv->reg[idx];
> +               unsigned int i;
> +               const char *fw_name[JH7110_VOUTCLK_EXT_END - JH7110_VOUTCLK_END] = {
> +                       "vout_src",
> +                       "vout_top_ahb",
> +                       "vout_top_axi",
> +                       "vout_top_hdmitx0_mclk",
> +                       "i2stx0_bclk",
> +                       "hdmitx0_pixelclk"
> +               };
> +
> +               for (i = 0; i < init.num_parents; i++) {
> +                       unsigned int pidx = jh7110_voutclk_data[idx].parents[i];
> +
> +                       if (pidx < JH7110_VOUTCLK_END)
> +                               parents[i].hw = &priv->reg[pidx].hw;
> +                       else if (pidx < JH7110_VOUTCLK_EXT_END)
> +                               parents[i].fw_name = fw_name[pidx - JH7110_VOUTCLK_END];
> +               }
> +
> +               clk->hw.init = &init;
> +               clk->idx = idx;
> +               clk->max_div = max & JH71X0_CLK_DIV_MASK;
> +
> +               ret = devm_clk_hw_register(&pdev->dev, &clk->hw);
> +               if (ret)
> +                       goto err_exit;
> +       }
> +
> +       ret = devm_of_clk_add_hw_provider(&pdev->dev, jh7110_voutclk_get, priv);
> +       if (ret)
> +               goto err_exit;
> +
> +       ret = jh7110_reset_controller_register(priv, "rst-vo", 4);
> +       if (ret)
> +               goto err_exit;
> +
> +       return 0;
> +
> +err_exit:
> +       pm_runtime_put_sync(priv->dev);
> +       pm_runtime_disable(priv->dev);
> +       return ret;
> +}
> +
> +static int jh7110_voutcrg_remove(struct platform_device *pdev)
> +{
> +       pm_runtime_put_sync(&pdev->dev);
> +       pm_runtime_disable(&pdev->dev);
> +
> +       return 0;
> +}
> +
> +static const struct of_device_id jh7110_voutcrg_match[] = {
> +       { .compatible = "starfive,jh7110-voutcrg" },
> +       { /* sentinel */ }
> +};
> +MODULE_DEVICE_TABLE(of, jh7110_voutcrg_match);
> +
> +static struct platform_driver jh7110_voutcrg_driver = {
> +       .probe = jh7110_voutcrg_probe,
> +       .remove = jh7110_voutcrg_remove,
> +       .driver = {
> +               .name = "clk-starfive-jh7110-vout",
> +               .of_match_table = jh7110_voutcrg_match,
> +               .pm = &jh7110_voutcrg_pm_ops,
> +       },
> +};
> +module_platform_driver(jh7110_voutcrg_driver);
> +
> +MODULE_AUTHOR("Xingyu Wu <xingyu.wu@starfivetech.com>");
> +MODULE_DESCRIPTION("StarFive JH7110 Video-Output clock driver");
> +MODULE_LICENSE("GPL");
> --
> 2.25.1
>
>
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv

Re: [PATCH v7 6/9] clk: starfive: Add StarFive JH7110 Video-Output clock driver

[Xingyu Wu]

On 2023/7/13 2:08, Emil Renner Berthing wrote:
> On Wed, 12 Jul 2023 at 11:22, Xingyu Wu <xingyu.wu@starfivetech.com> wrote:
>>
>> Add driver for the StarFive JH7110 Video-Output clock controller.
>> And these clock controllers should power on and enable the clocks from
>> SYSCRG first before registering.
>>
>> Reviewed-by: Hal Feng <hal.feng@starfivetech.com>
>> Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
>> ---
>>  drivers/clk/starfive/Kconfig                  |   8 +
>>  drivers/clk/starfive/Makefile                 |   1 +
>>  .../clk/starfive/clk-starfive-jh7110-vout.c   | 239 ++++++++++++++++++
>>  3 files changed, 248 insertions(+)
>>  create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-vout.c
>>
>> diff --git a/drivers/clk/starfive/Kconfig b/drivers/clk/starfive/Kconfig
>> index 13b4d08cbcd2..3fa983eb7d32 100644
>> --- a/drivers/clk/starfive/Kconfig
>> +++ b/drivers/clk/starfive/Kconfig
>> @@ -55,3 +55,11 @@ config CLK_STARFIVE_JH7110_ISP
>>         help
>>           Say yes here to support the Image-Signal-Process clock controller
>>           on the StarFive JH7110 SoC.
>> +
>> +config CLK_STARFIVE_JH7110_VOUT
>> +       tristate "StarFive JH7110 Video-Output clock support"
>> +       depends on CLK_STARFIVE_JH7110_SYS && JH71XX_PMU
>> +       default m if ARCH_STARFIVE
>> +       help
>> +         Say yes here to support the Video-Output clock controller
>> +         on the StarFive JH7110 SoC.
>> diff --git a/drivers/clk/starfive/Makefile b/drivers/clk/starfive/Makefile
>> index 76fb9f8d628b..841377e45bb6 100644
>> --- a/drivers/clk/starfive/Makefile
>> +++ b/drivers/clk/starfive/Makefile
>> @@ -8,3 +8,4 @@ obj-$(CONFIG_CLK_STARFIVE_JH7110_SYS)   += clk-starfive-jh7110-sys.o
>>  obj-$(CONFIG_CLK_STARFIVE_JH7110_AON)  += clk-starfive-jh7110-aon.o
>>  obj-$(CONFIG_CLK_STARFIVE_JH7110_STG)  += clk-starfive-jh7110-stg.o
>>  obj-$(CONFIG_CLK_STARFIVE_JH7110_ISP)  += clk-starfive-jh7110-isp.o
>> +obj-$(CONFIG_CLK_STARFIVE_JH7110_VOUT) += clk-starfive-jh7110-vout.o
>> diff --git a/drivers/clk/starfive/clk-starfive-jh7110-vout.c b/drivers/clk/starfive/clk-starfive-jh7110-vout.c
>> new file mode 100644
>> index 000000000000..743840e03d81
>> --- /dev/null
>> +++ b/drivers/clk/starfive/clk-starfive-jh7110-vout.c
>> @@ -0,0 +1,239 @@
>> +// SPDX-License-Identifier: GPL-2.0
>> +/*
>> + * StarFive JH7110 Video-Output Clock Driver
>> + *
>> + * Copyright (C) 2022-2023 StarFive Technology Co., Ltd.
>> + */
>> +
>> +#include <linux/clk.h>
>> +#include <linux/clk-provider.h>
>> +#include <linux/io.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/pm_runtime.h>
>> +#include <linux/reset.h>
>> +
>> +#include <dt-bindings/clock/starfive,jh7110-crg.h>
>> +
>> +#include "clk-starfive-jh7110.h"
>> +
>> +/* external clocks */
>> +#define JH7110_VOUTCLK_VOUT_SRC                        (JH7110_VOUTCLK_END + 0)
>> +#define JH7110_VOUTCLK_VOUT_TOP_AHB            (JH7110_VOUTCLK_END + 1)
>> +#define JH7110_VOUTCLK_VOUT_TOP_AXI            (JH7110_VOUTCLK_END + 2)
>> +#define JH7110_VOUTCLK_VOUT_TOP_HDMITX0_MCLK   (JH7110_VOUTCLK_END + 3)
>> +#define JH7110_VOUTCLK_I2STX0_BCLK             (JH7110_VOUTCLK_END + 4)
>> +#define JH7110_VOUTCLK_HDMITX0_PIXELCLK                (JH7110_VOUTCLK_END + 5)
>> +#define JH7110_VOUTCLK_EXT_END                 (JH7110_VOUTCLK_END + 6)
>> +
>> +static struct clk_bulk_data jh7110_vout_top_clks[] = {
>> +       { .id = "vout_src" },
>> +       { .id = "vout_top_ahb" }
>> +};
>> +
>> +static const struct jh71x0_clk_data jh7110_voutclk_data[] = {
>> +       /* divider */
>> +       JH71X0__DIV(JH7110_VOUTCLK_APB, "apb", 8, JH7110_VOUTCLK_VOUT_TOP_AHB),
>> +       JH71X0__DIV(JH7110_VOUTCLK_DC8200_PIX, "dc8200_pix", 63, JH7110_VOUTCLK_VOUT_SRC),
>> +       JH71X0__DIV(JH7110_VOUTCLK_DSI_SYS, "dsi_sys", 31, JH7110_VOUTCLK_VOUT_SRC),
>> +       JH71X0__DIV(JH7110_VOUTCLK_TX_ESC, "tx_esc", 31, JH7110_VOUTCLK_VOUT_TOP_AHB),
>> +       /* dc8200 */
>> +       JH71X0_GATE(JH7110_VOUTCLK_DC8200_AXI, "dc8200_axi", 0, JH7110_VOUTCLK_VOUT_TOP_AXI),
>> +       JH71X0_GATE(JH7110_VOUTCLK_DC8200_CORE, "dc8200_core", 0, JH7110_VOUTCLK_VOUT_TOP_AXI),
>> +       JH71X0_GATE(JH7110_VOUTCLK_DC8200_AHB, "dc8200_ahb", 0, JH7110_VOUTCLK_VOUT_TOP_AHB),
>> +       JH71X0_GMUX(JH7110_VOUTCLK_DC8200_PIX0, "dc8200_pix0", 0, 2,
>> +                   JH7110_VOUTCLK_DC8200_PIX,
>> +                   JH7110_VOUTCLK_HDMITX0_PIXELCLK),
>> +       JH71X0_GMUX(JH7110_VOUTCLK_DC8200_PIX1, "dc8200_pix1", 0, 2,
>> +                   JH7110_VOUTCLK_DC8200_PIX,
>> +                   JH7110_VOUTCLK_HDMITX0_PIXELCLK),
>> +       /* LCD */
>> +       JH71X0_GMUX(JH7110_VOUTCLK_DOM_VOUT_TOP_LCD, "dom_vout_top_lcd", 0, 2,
>> +                   JH7110_VOUTCLK_DC8200_PIX0,
>> +                   JH7110_VOUTCLK_DC8200_PIX1),
>> +       /* dsiTx */
>> +       JH71X0_GATE(JH7110_VOUTCLK_DSITX_APB, "dsiTx_apb", 0, JH7110_VOUTCLK_DSI_SYS),
>> +       JH71X0_GATE(JH7110_VOUTCLK_DSITX_SYS, "dsiTx_sys", 0, JH7110_VOUTCLK_DSI_SYS),
>> +       JH71X0_GMUX(JH7110_VOUTCLK_DSITX_DPI, "dsiTx_dpi", 0, 2,
>> +                   JH7110_VOUTCLK_DC8200_PIX,
>> +                   JH7110_VOUTCLK_HDMITX0_PIXELCLK),
>> +       JH71X0_GATE(JH7110_VOUTCLK_DSITX_TXESC, "dsiTx_txesc", 0, JH7110_VOUTCLK_TX_ESC),
>> +       /* mipitx DPHY */
>> +       JH71X0_GATE(JH7110_VOUTCLK_MIPITX_DPHY_TXESC, "mipitx_dphy_txesc", 0,
>> +                   JH7110_VOUTCLK_TX_ESC),
>> +       /* hdmi */
>> +       JH71X0_GATE(JH7110_VOUTCLK_HDMI_TX_MCLK, "hdmi_tx_mclk", 0,
>> +                   JH7110_VOUTCLK_VOUT_TOP_HDMITX0_MCLK),
>> +       JH71X0_GATE(JH7110_VOUTCLK_HDMI_TX_BCLK, "hdmi_tx_bclk", 0,
>> +                   JH7110_VOUTCLK_I2STX0_BCLK),
>> +       JH71X0_GATE(JH7110_VOUTCLK_HDMI_TX_SYS, "hdmi_tx_sys", 0, JH7110_VOUTCLK_APB),
>> +};
>> +
>> +static int jh7110_vout_top_rst_init(struct jh71x0_clk_priv *priv)
>> +{
>> +       struct reset_control *top_rst;
>> +
>> +       /* The reset should be shared and other Vout modules will use its. */
>> +       top_rst = devm_reset_control_get_shared(priv->dev, NULL);
>> +       if (IS_ERR(top_rst))
>> +               return dev_err_probe(priv->dev, PTR_ERR(top_rst), "failed to get top reset\n");
>> +
>> +       return reset_control_deassert(top_rst);
>> +}
>> +
>> +static struct clk_hw *jh7110_voutclk_get(struct of_phandle_args *clkspec, void *data)
>> +{
>> +       struct jh71x0_clk_priv *priv = data;
>> +       unsigned int idx = clkspec->args[0];
>> +
>> +       if (idx < JH7110_VOUTCLK_END)
>> +               return &priv->reg[idx].hw;
>> +
>> +       return ERR_PTR(-EINVAL);
>> +}
>> +
>> +#ifdef CONFIG_PM
>> +static int jh7110_voutcrg_suspend(struct device *dev)
>> +{
>> +       struct top_sysclk *top = dev_get_drvdata(dev);
>> +
>> +       clk_bulk_disable_unprepare(top->top_clks_num, top->top_clks);
>> +
>> +       return 0;
>> +}
>> +
>> +static int jh7110_voutcrg_resume(struct device *dev)
>> +{
>> +       struct top_sysclk *top = dev_get_drvdata(dev);
>> +
>> +       return clk_bulk_prepare_enable(top->top_clks_num, top->top_clks);
>> +}
>> +#endif
> 
> nit: you could move this #endif down below jh7110_voutcrg_pm_ops, and then do
> 
>   .pm = pm_ptr(&jh7110_voutcrg_pm_ops),
> 
> In any case
> Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>

Will fix in both VOUTCRG and ISPCEG drivers. Thanks.

Best regards,
Xingyu Wu

> 
>> +static const struct dev_pm_ops jh7110_voutcrg_pm_ops = {
>> +       SET_RUNTIME_PM_OPS(jh7110_voutcrg_suspend, jh7110_voutcrg_resume, NULL)
>> +};
>> +
>> +static int jh7110_voutcrg_probe(struct platform_device *pdev)
>> +{
>> +       struct jh71x0_clk_priv *priv;
>> +       struct top_sysclk *top;
>> +       unsigned int idx;
>> +       int ret;
>> +
>> +       priv = devm_kzalloc(&pdev->dev,
>> +                           struct_size(priv, reg, JH7110_VOUTCLK_END),
>> +                           GFP_KERNEL);
>> +       if (!priv)
>> +               return -ENOMEM;
>> +
>> +       top = devm_kzalloc(&pdev->dev, sizeof(*top), GFP_KERNEL);
>> +       if (!top)
>> +               return -ENOMEM;
>> +
>> +       spin_lock_init(&priv->rmw_lock);
>> +       priv->dev = &pdev->dev;
>> +       priv->base = devm_platform_ioremap_resource(pdev, 0);
>> +       if (IS_ERR(priv->base))
>> +               return PTR_ERR(priv->base);
>> +
>> +       top->top_clks = jh7110_vout_top_clks;
>> +       top->top_clks_num = ARRAY_SIZE(jh7110_vout_top_clks);
>> +       ret = devm_clk_bulk_get(priv->dev, top->top_clks_num, top->top_clks);
>> +       if (ret)
>> +               return dev_err_probe(priv->dev, ret, "failed to get top clocks\n");
>> +       dev_set_drvdata(priv->dev, top);
>> +
>> +       /* enable power domain and clocks */
>> +       pm_runtime_enable(priv->dev);
>> +       ret = pm_runtime_get_sync(priv->dev);
>> +       if (ret < 0)
>> +               return dev_err_probe(priv->dev, ret, "failed to turn on power\n");
>> +
>> +       ret = jh7110_vout_top_rst_init(priv);
>> +       if (ret)
>> +               goto err_exit;
>> +
>> +       for (idx = 0; idx < JH7110_VOUTCLK_END; idx++) {
>> +               u32 max = jh7110_voutclk_data[idx].max;
>> +               struct clk_parent_data parents[4] = {};
>> +               struct clk_init_data init = {
>> +                       .name = jh7110_voutclk_data[idx].name,
>> +                       .ops = starfive_jh71x0_clk_ops(max),
>> +                       .parent_data = parents,
>> +                       .num_parents =
>> +                               ((max & JH71X0_CLK_MUX_MASK) >> JH71X0_CLK_MUX_SHIFT) + 1,
>> +                       .flags = jh7110_voutclk_data[idx].flags,
>> +               };
>> +               struct jh71x0_clk *clk = &priv->reg[idx];
>> +               unsigned int i;
>> +               const char *fw_name[JH7110_VOUTCLK_EXT_END - JH7110_VOUTCLK_END] = {
>> +                       "vout_src",
>> +                       "vout_top_ahb",
>> +                       "vout_top_axi",
>> +                       "vout_top_hdmitx0_mclk",
>> +                       "i2stx0_bclk",
>> +                       "hdmitx0_pixelclk"
>> +               };
>> +
>> +               for (i = 0; i < init.num_parents; i++) {
>> +                       unsigned int pidx = jh7110_voutclk_data[idx].parents[i];
>> +
>> +                       if (pidx < JH7110_VOUTCLK_END)
>> +                               parents[i].hw = &priv->reg[pidx].hw;
>> +                       else if (pidx < JH7110_VOUTCLK_EXT_END)
>> +                               parents[i].fw_name = fw_name[pidx - JH7110_VOUTCLK_END];
>> +               }
>> +
>> +               clk->hw.init = &init;
>> +               clk->idx = idx;
>> +               clk->max_div = max & JH71X0_CLK_DIV_MASK;
>> +
>> +               ret = devm_clk_hw_register(&pdev->dev, &clk->hw);
>> +               if (ret)
>> +                       goto err_exit;
>> +       }
>> +
>> +       ret = devm_of_clk_add_hw_provider(&pdev->dev, jh7110_voutclk_get, priv);
>> +       if (ret)
>> +               goto err_exit;
>> +
>> +       ret = jh7110_reset_controller_register(priv, "rst-vo", 4);
>> +       if (ret)
>> +               goto err_exit;
>> +
>> +       return 0;
>> +
>> +err_exit:
>> +       pm_runtime_put_sync(priv->dev);
>> +       pm_runtime_disable(priv->dev);
>> +       return ret;
>> +}
>> +
>> +static int jh7110_voutcrg_remove(struct platform_device *pdev)
>> +{
>> +       pm_runtime_put_sync(&pdev->dev);
>> +       pm_runtime_disable(&pdev->dev);
>> +
>> +       return 0;
>> +}
>> +
>> +static const struct of_device_id jh7110_voutcrg_match[] = {
>> +       { .compatible = "starfive,jh7110-voutcrg" },
>> +       { /* sentinel */ }
>> +};
>> +MODULE_DEVICE_TABLE(of, jh7110_voutcrg_match);
>> +
>> +static struct platform_driver jh7110_voutcrg_driver = {
>> +       .probe = jh7110_voutcrg_probe,
>> +       .remove = jh7110_voutcrg_remove,
>> +       .driver = {
>> +               .name = "clk-starfive-jh7110-vout",
>> +               .of_match_table = jh7110_voutcrg_match,
>> +               .pm = &jh7110_voutcrg_pm_ops,
>> +       },
>> +};
>> +module_platform_driver(jh7110_voutcrg_driver);
>> +
>> +MODULE_AUTHOR("Xingyu Wu <xingyu.wu@starfivetech.com>");
>> +MODULE_DESCRIPTION("StarFive JH7110 Video-Output clock driver");
>> +MODULE_LICENSE("GPL");
>> --

[PATCH v7 7/9] reset: starfive: jh7110: Add StarFive STG/ISP/VOUT resets support

[Xingyu Wu]

Add new struct members and auxiliary_device_id of resets to support
System-Top-Group, Image-Signal-Process and Video-Output on the StarFive
JH7110 SoC.

Reviewed-by: Hal Feng <hal.feng@starfivetech.com>
Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
---
 .../reset/starfive/reset-starfive-jh7110.c    | 30 +++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/drivers/reset/starfive/reset-starfive-jh7110.c b/drivers/reset/starfive/reset-starfive-jh7110.c
index 2d26ae95c8cc..29a43f0f2ad6 100644
--- a/drivers/reset/starfive/reset-starfive-jh7110.c
+++ b/drivers/reset/starfive/reset-starfive-jh7110.c
@@ -31,6 +31,24 @@ static const struct jh7110_reset_info jh7110_aon_info = {
 	.status_offset = 0x3C,
 };
 
+static const struct jh7110_reset_info jh7110_stg_info = {
+	.nr_resets = JH7110_STGRST_END,
+	.assert_offset = 0x74,
+	.status_offset = 0x78,
+};
+
+static const struct jh7110_reset_info jh7110_isp_info = {
+	.nr_resets = JH7110_ISPRST_END,
+	.assert_offset = 0x38,
+	.status_offset = 0x3C,
+};
+
+static const struct jh7110_reset_info jh7110_vout_info = {
+	.nr_resets = JH7110_VOUTRST_END,
+	.assert_offset = 0x48,
+	.status_offset = 0x4C,
+};
+
 static int jh7110_reset_probe(struct auxiliary_device *adev,
 			      const struct auxiliary_device_id *id)
 {
@@ -58,6 +76,18 @@ static const struct auxiliary_device_id jh7110_reset_ids[] = {
 		.name = "clk_starfive_jh7110_sys.rst-aon",
 		.driver_data = (kernel_ulong_t)&jh7110_aon_info,
 	},
+	{
+		.name = "clk_starfive_jh7110_sys.rst-stg",
+		.driver_data = (kernel_ulong_t)&jh7110_stg_info,
+	},
+	{
+		.name = "clk_starfive_jh7110_sys.rst-isp",
+		.driver_data = (kernel_ulong_t)&jh7110_isp_info,
+	},
+	{
+		.name = "clk_starfive_jh7110_sys.rst-vo",
+		.driver_data = (kernel_ulong_t)&jh7110_vout_info,
+	},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(auxiliary, jh7110_reset_ids);
-- 
2.25.1

Re: [PATCH v7 7/9] reset: starfive: jh7110: Add StarFive STG/ISP/VOUT resets support

[Emil Renner Berthing]

On Wed, 12 Jul 2023 at 11:22, Xingyu Wu <xingyu.wu@starfivetech.com> wrote:
>
> Add new struct members and auxiliary_device_id of resets to support
> System-Top-Group, Image-Signal-Process and Video-Output on the StarFive
> JH7110 SoC.
>
> Reviewed-by: Hal Feng <hal.feng@starfivetech.com>

Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>

> Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
> ---
>  .../reset/starfive/reset-starfive-jh7110.c    | 30 +++++++++++++++++++
>  1 file changed, 30 insertions(+)
>
> diff --git a/drivers/reset/starfive/reset-starfive-jh7110.c b/drivers/reset/starfive/reset-starfive-jh7110.c
> index 2d26ae95c8cc..29a43f0f2ad6 100644
> --- a/drivers/reset/starfive/reset-starfive-jh7110.c
> +++ b/drivers/reset/starfive/reset-starfive-jh7110.c
> @@ -31,6 +31,24 @@ static const struct jh7110_reset_info jh7110_aon_info = {
>         .status_offset = 0x3C,
>  };
>
> +static const struct jh7110_reset_info jh7110_stg_info = {
> +       .nr_resets = JH7110_STGRST_END,
> +       .assert_offset = 0x74,
> +       .status_offset = 0x78,
> +};
> +
> +static const struct jh7110_reset_info jh7110_isp_info = {
> +       .nr_resets = JH7110_ISPRST_END,
> +       .assert_offset = 0x38,
> +       .status_offset = 0x3C,
> +};
> +
> +static const struct jh7110_reset_info jh7110_vout_info = {
> +       .nr_resets = JH7110_VOUTRST_END,
> +       .assert_offset = 0x48,
> +       .status_offset = 0x4C,
> +};
> +
>  static int jh7110_reset_probe(struct auxiliary_device *adev,
>                               const struct auxiliary_device_id *id)
>  {
> @@ -58,6 +76,18 @@ static const struct auxiliary_device_id jh7110_reset_ids[] = {
>                 .name = "clk_starfive_jh7110_sys.rst-aon",
>                 .driver_data = (kernel_ulong_t)&jh7110_aon_info,
>         },
> +       {
> +               .name = "clk_starfive_jh7110_sys.rst-stg",
> +               .driver_data = (kernel_ulong_t)&jh7110_stg_info,
> +       },
> +       {
> +               .name = "clk_starfive_jh7110_sys.rst-isp",
> +               .driver_data = (kernel_ulong_t)&jh7110_isp_info,
> +       },
> +       {
> +               .name = "clk_starfive_jh7110_sys.rst-vo",
> +               .driver_data = (kernel_ulong_t)&jh7110_vout_info,
> +       },
>         { /* sentinel */ }
>  };
>  MODULE_DEVICE_TABLE(auxiliary, jh7110_reset_ids);
> --
> 2.25.1
>
>
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv

[PATCH v7 8/9] riscv: dts: starfive: jh7110: Add DVP and HDMI TX pixel external clocks

[Xingyu Wu]

Add DVP and HDMI TX pixel external fixed clocks and the rates are
74.25MHz and 297MHz.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
---
 .../dts/starfive/jh7110-starfive-visionfive-2.dtsi   |  8 ++++++++
 arch/riscv/boot/dts/starfive/jh7110.dtsi             | 12 ++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
index fa0061eb33a7..de0f40a8be93 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
@@ -38,6 +38,10 @@ gpio-restart {
 	};
 };
 
+&dvp_clk {
+	clock-frequency = <74250000>;
+};
+
 &gmac0_rgmii_rxin {
 	clock-frequency = <125000000>;
 };
@@ -54,6 +58,10 @@ &gmac1_rmii_refin {
 	clock-frequency = <50000000>;
 };
 
+&hdmitx0_pixelclk {
+	clock-frequency = <297000000>;
+};
+
 &i2srx_bclk_ext {
 	clock-frequency = <12288000>;
 };
diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
index ec2e70011a73..e9c1e4ad71a2 100644
--- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
@@ -197,6 +197,12 @@ opp-1500000000 {
 			};
 	};
 
+	dvp_clk: dvp-clock {
+		compatible = "fixed-clock";
+		clock-output-names = "dvp_clk";
+		#clock-cells = <0>;
+	};
+
 	gmac0_rgmii_rxin: gmac0-rgmii-rxin-clock {
 		compatible = "fixed-clock";
 		clock-output-names = "gmac0_rgmii_rxin";
@@ -221,6 +227,12 @@ gmac1_rmii_refin: gmac1-rmii-refin-clock {
 		#clock-cells = <0>;
 	};
 
+	hdmitx0_pixelclk: hdmitx0-pixel-clock {
+		compatible = "fixed-clock";
+		clock-output-names = "hdmitx0_pixelclk";
+		#clock-cells = <0>;
+	};
+
 	i2srx_bclk_ext: i2srx-bclk-ext-clock {
 		compatible = "fixed-clock";
 		clock-output-names = "i2srx_bclk_ext";
-- 
2.25.1

Re: [PATCH v7 8/9] riscv: dts: starfive: jh7110: Add DVP and HDMI TX pixel external clocks

[Emil Renner Berthing]

On Wed, 12 Jul 2023 at 11:22, Xingyu Wu <xingyu.wu@starfivetech.com> wrote:
>
> Add DVP and HDMI TX pixel external fixed clocks and the rates are
> 74.25MHz and 297MHz.
>
> Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>

> Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
> ---
>  .../dts/starfive/jh7110-starfive-visionfive-2.dtsi   |  8 ++++++++
>  arch/riscv/boot/dts/starfive/jh7110.dtsi             | 12 ++++++++++++
>  2 files changed, 20 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
> index fa0061eb33a7..de0f40a8be93 100644
> --- a/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
> +++ b/arch/riscv/boot/dts/starfive/jh7110-starfive-visionfive-2.dtsi
> @@ -38,6 +38,10 @@ gpio-restart {
>         };
>  };
>
> +&dvp_clk {
> +       clock-frequency = <74250000>;
> +};
> +
>  &gmac0_rgmii_rxin {
>         clock-frequency = <125000000>;
>  };
> @@ -54,6 +58,10 @@ &gmac1_rmii_refin {
>         clock-frequency = <50000000>;
>  };
>
> +&hdmitx0_pixelclk {
> +       clock-frequency = <297000000>;
> +};
> +
>  &i2srx_bclk_ext {
>         clock-frequency = <12288000>;
>  };
> diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
> index ec2e70011a73..e9c1e4ad71a2 100644
> --- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
> +++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
> @@ -197,6 +197,12 @@ opp-1500000000 {
>                         };
>         };
>
> +       dvp_clk: dvp-clock {
> +               compatible = "fixed-clock";
> +               clock-output-names = "dvp_clk";
> +               #clock-cells = <0>;
> +       };
> +
>         gmac0_rgmii_rxin: gmac0-rgmii-rxin-clock {
>                 compatible = "fixed-clock";
>                 clock-output-names = "gmac0_rgmii_rxin";
> @@ -221,6 +227,12 @@ gmac1_rmii_refin: gmac1-rmii-refin-clock {
>                 #clock-cells = <0>;
>         };
>
> +       hdmitx0_pixelclk: hdmitx0-pixel-clock {
> +               compatible = "fixed-clock";
> +               clock-output-names = "hdmitx0_pixelclk";
> +               #clock-cells = <0>;
> +       };
> +
>         i2srx_bclk_ext: i2srx-bclk-ext-clock {
>                 compatible = "fixed-clock";
>                 clock-output-names = "i2srx_bclk_ext";
> --
> 2.25.1
>
>
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv

[PATCH v7 9/9] riscv: dts: starfive: jh7110: Add STGCRG/ISPCRG/VOUTCRG nodes

[Xingyu Wu]

Add STGCRG/ISPCRG/VOUTCRG new node to support JH7110
System-Top-Group, Image-Signal-Process and Video-Output
clock and reset drivers for the JH7110 RISC-V SoC.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
---
 arch/riscv/boot/dts/starfive/jh7110.dtsi | 55 ++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
index e9c1e4ad71a2..0005fa163a78 100644
--- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
@@ -6,6 +6,7 @@
 
 /dts-v1/;
 #include <dt-bindings/clock/starfive,jh7110-crg.h>
+#include <dt-bindings/power/starfive,jh7110-pmu.h>
 #include <dt-bindings/reset/starfive,jh7110-crg.h>
 
 / {
@@ -398,6 +399,25 @@ i2c2: i2c@10050000 {
 			status = "disabled";
 		};
 
+		stgcrg: clock-controller@10230000 {
+			compatible = "starfive,jh7110-stgcrg";
+			reg = <0x0 0x10230000 0x0 0x10000>;
+			clocks = <&osc>,
+				 <&syscrg JH7110_SYSCLK_HIFI4_CORE>,
+				 <&syscrg JH7110_SYSCLK_STG_AXIAHB>,
+				 <&syscrg JH7110_SYSCLK_USB_125M>,
+				 <&syscrg JH7110_SYSCLK_CPU_BUS>,
+				 <&syscrg JH7110_SYSCLK_HIFI4_AXI>,
+				 <&syscrg JH7110_SYSCLK_NOCSTG_BUS>,
+				 <&syscrg JH7110_SYSCLK_APB_BUS>;
+			clock-names = "osc", "hifi4_core",
+				      "stg_axiahb", "usb_125m",
+				      "cpu_bus", "hifi4_axi",
+				      "nocstg_bus", "apb_bus";
+			#clock-cells = <1>;
+			#reset-cells = <1>;
+		};
+
 		uart3: serial@12000000 {
 			compatible = "snps,dw-apb-uart";
 			reg = <0x0 0x12000000 0x0 0x10000>;
@@ -558,5 +578,40 @@ pwrc: power-controller@17030000 {
 			interrupts = <111>;
 			#power-domain-cells = <1>;
 		};
+
+		ispcrg: clock-controller@19810000 {
+			compatible = "starfive,jh7110-ispcrg";
+			reg = <0x0 0x19810000 0x0 0x10000>;
+			clocks = <&syscrg JH7110_SYSCLK_ISP_TOP_CORE>,
+				 <&syscrg JH7110_SYSCLK_ISP_TOP_AXI>,
+				 <&syscrg JH7110_SYSCLK_NOC_BUS_ISP_AXI>,
+				 <&dvp_clk>;
+			clock-names = "isp_top_core", "isp_top_axi",
+				      "noc_bus_isp_axi", "dvp_clk";
+			resets = <&syscrg JH7110_SYSRST_ISP_TOP>,
+				 <&syscrg JH7110_SYSRST_ISP_TOP_AXI>,
+				 <&syscrg JH7110_SYSRST_NOC_BUS_ISP_AXI>;
+			#clock-cells = <1>;
+			#reset-cells = <1>;
+			power-domains = <&pwrc JH7110_PD_ISP>;
+		};
+
+		voutcrg: clock-controller@295c0000 {
+			compatible = "starfive,jh7110-voutcrg";
+			reg = <0x0 0x295c0000 0x0 0x10000>;
+			clocks = <&syscrg JH7110_SYSCLK_VOUT_SRC>,
+				 <&syscrg JH7110_SYSCLK_VOUT_TOP_AHB>,
+				 <&syscrg JH7110_SYSCLK_VOUT_TOP_AXI>,
+				 <&syscrg JH7110_SYSCLK_VOUT_TOP_HDMITX0_MCLK>,
+				 <&syscrg JH7110_SYSCLK_I2STX0_BCLK>,
+				 <&hdmitx0_pixelclk>;
+			clock-names = "vout_src", "vout_top_ahb",
+				      "vout_top_axi", "vout_top_hdmitx0_mclk",
+				      "i2stx0_bclk", "hdmitx0_pixelclk";
+			resets = <&syscrg JH7110_SYSRST_VOUT_TOP_SRC>;
+			#clock-cells = <1>;
+			#reset-cells = <1>;
+			power-domains = <&pwrc JH7110_PD_VOUT>;
+		};
 	};
 };
-- 
2.25.1

Re: [PATCH v7 9/9] riscv: dts: starfive: jh7110: Add STGCRG/ISPCRG/VOUTCRG nodes

[Emil Renner Berthing]

On Wed, 12 Jul 2023 at 11:22, Xingyu Wu <xingyu.wu@starfivetech.com> wrote:
>
> Add STGCRG/ISPCRG/VOUTCRG new node to support JH7110
> System-Top-Group, Image-Signal-Process and Video-Output
> clock and reset drivers for the JH7110 RISC-V SoC.
>
> Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>

> Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
> ---
>  arch/riscv/boot/dts/starfive/jh7110.dtsi | 55 ++++++++++++++++++++++++
>  1 file changed, 55 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/starfive/jh7110.dtsi b/arch/riscv/boot/dts/starfive/jh7110.dtsi
> index e9c1e4ad71a2..0005fa163a78 100644
> --- a/arch/riscv/boot/dts/starfive/jh7110.dtsi
> +++ b/arch/riscv/boot/dts/starfive/jh7110.dtsi
> @@ -6,6 +6,7 @@
>
>  /dts-v1/;
>  #include <dt-bindings/clock/starfive,jh7110-crg.h>
> +#include <dt-bindings/power/starfive,jh7110-pmu.h>
>  #include <dt-bindings/reset/starfive,jh7110-crg.h>
>
>  / {
> @@ -398,6 +399,25 @@ i2c2: i2c@10050000 {
>                         status = "disabled";
>                 };
>
> +               stgcrg: clock-controller@10230000 {
> +                       compatible = "starfive,jh7110-stgcrg";
> +                       reg = <0x0 0x10230000 0x0 0x10000>;
> +                       clocks = <&osc>,
> +                                <&syscrg JH7110_SYSCLK_HIFI4_CORE>,
> +                                <&syscrg JH7110_SYSCLK_STG_AXIAHB>,
> +                                <&syscrg JH7110_SYSCLK_USB_125M>,
> +                                <&syscrg JH7110_SYSCLK_CPU_BUS>,
> +                                <&syscrg JH7110_SYSCLK_HIFI4_AXI>,
> +                                <&syscrg JH7110_SYSCLK_NOCSTG_BUS>,
> +                                <&syscrg JH7110_SYSCLK_APB_BUS>;
> +                       clock-names = "osc", "hifi4_core",
> +                                     "stg_axiahb", "usb_125m",
> +                                     "cpu_bus", "hifi4_axi",
> +                                     "nocstg_bus", "apb_bus";
> +                       #clock-cells = <1>;
> +                       #reset-cells = <1>;
> +               };
> +
>                 uart3: serial@12000000 {
>                         compatible = "snps,dw-apb-uart";
>                         reg = <0x0 0x12000000 0x0 0x10000>;
> @@ -558,5 +578,40 @@ pwrc: power-controller@17030000 {
>                         interrupts = <111>;
>                         #power-domain-cells = <1>;
>                 };
> +
> +               ispcrg: clock-controller@19810000 {
> +                       compatible = "starfive,jh7110-ispcrg";
> +                       reg = <0x0 0x19810000 0x0 0x10000>;
> +                       clocks = <&syscrg JH7110_SYSCLK_ISP_TOP_CORE>,
> +                                <&syscrg JH7110_SYSCLK_ISP_TOP_AXI>,
> +                                <&syscrg JH7110_SYSCLK_NOC_BUS_ISP_AXI>,
> +                                <&dvp_clk>;
> +                       clock-names = "isp_top_core", "isp_top_axi",
> +                                     "noc_bus_isp_axi", "dvp_clk";
> +                       resets = <&syscrg JH7110_SYSRST_ISP_TOP>,
> +                                <&syscrg JH7110_SYSRST_ISP_TOP_AXI>,
> +                                <&syscrg JH7110_SYSRST_NOC_BUS_ISP_AXI>;
> +                       #clock-cells = <1>;
> +                       #reset-cells = <1>;
> +                       power-domains = <&pwrc JH7110_PD_ISP>;
> +               };
> +
> +               voutcrg: clock-controller@295c0000 {
> +                       compatible = "starfive,jh7110-voutcrg";
> +                       reg = <0x0 0x295c0000 0x0 0x10000>;
> +                       clocks = <&syscrg JH7110_SYSCLK_VOUT_SRC>,
> +                                <&syscrg JH7110_SYSCLK_VOUT_TOP_AHB>,
> +                                <&syscrg JH7110_SYSCLK_VOUT_TOP_AXI>,
> +                                <&syscrg JH7110_SYSCLK_VOUT_TOP_HDMITX0_MCLK>,
> +                                <&syscrg JH7110_SYSCLK_I2STX0_BCLK>,
> +                                <&hdmitx0_pixelclk>;
> +                       clock-names = "vout_src", "vout_top_ahb",
> +                                     "vout_top_axi", "vout_top_hdmitx0_mclk",
> +                                     "i2stx0_bclk", "hdmitx0_pixelclk";
> +                       resets = <&syscrg JH7110_SYSRST_VOUT_TOP_SRC>;
> +                       #clock-cells = <1>;
> +                       #reset-cells = <1>;
> +                       power-domains = <&pwrc JH7110_PD_VOUT>;
> +               };
>         };
>  };
> --
> 2.25.1
>
>
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv

Re: [PATCH v7 0/9] Add STG/ISP/VOUT clock and reset drivers for StarFive JH7110

[Palmer Dabbelt]

On Wed, 12 Jul 2023 02:19:58 PDT (-0700), xingyu.wu@starfivetech.com wrote:
> This patch serises are base on the basic JH7110 SYSCRG/AONCRG
> drivers and add new partial clock drivers and reset supports
> about System-Top-Group(STG), Image-Signal-Process(ISP)
> and Video-Output(VOUT) for the StarFive JH7110 RISC-V SoC. These
> clocks and resets could be used by DMA, VIN and Display modules.
>
> Patches 1 and 2 are about the System-Top-Group clock and reset
> generator(STGCRG) part. The first patch adds docunmentation to
> describe STG bindings, and the second patch adds clock driver to
> support STG clocks and resets as auxiliary device for JH7110.
>
> Patches 3 and 4 are about the Image-Signal-Process clock and reset
> gennerator(ISPCRG) part. The first patch adds docunmentation to
> describe ISP bindings, and the second patch adds clock driver to
> support ISP clocks and resets as auxiliary device for JH7110.
> And ISP clocks should power on and enable the SYSCRG clocks first
> before registering.
>
> Patches 5 and 6 are about the Video-Output clock and reset
> generator(VOUTCRG) part. The first patch adds docunmentation to
> describe VOUT bindings, and the second patch adds clock driver to
> support VOUT clocks and resets as auxiliary device for JH7110.
> And VOUT clocks also should power on and enable the SYSCRG clocks
> first before registering.
>
> Patch 7 adds struct members to support STG/ISP/VOUT resets.
> Patch 8 adds external clocks which ISP and VOUT clock driver need.
> Patch 9 adds device node about STGCRG, ISPCRG and VOUTCRG to JH7110 dts.
>
> Changes since v6:
> - Rebased on the Linux 6.5-rc1.
> - Dropped the unnecessary selections in the Kconfig.
> - Dropped the patches about the PMU node and MAINTIANERS.
> - Add the reviews.
>
> v6: https://lore.kernel.org/all/20230518101234.143748-1-xingyu.wu@starfivetech.com/
>
> Changes since v5:
> - Rebased on the Linux 6.4-rc2.
> - Modified the reset name about VOUTCRG to fix the error with
>   CONFIG_FORTIFY_SOURCE=y
> - Added the patch about pmu node.
>
> v5: https://lore.kernel.org/all/20230424135409.6648-1-xingyu.wu@starfivetech.com/
>
> Changes since v4:
> - Rebased on the lastest patches about fixing the basic clock and reset drivers.
> - Dropped the 'dev_set_drvdata()' in STG clock driver.
> - Modified the data with 'dev_set_drvdata()' in ISP/VOUT clock driver
>   and move the struct about the data to JH7110 header file, which both
>   ISP and VOUT clock drivers will use.
>
> v4: https://lore.kernel.org/all/20230411135558.44282-1-xingyu.wu@starfivetech.com/
>
> Changes since v3:
> - Rebased on the lastest JH71X0 clock and reset driver of patchset[1]
>   and modified the parameters of the register reset functions.
> - The patch 1 combined three commits on STG/ISP/VOUT resets into one.
>   And Changed the auxiliary_device_id name from
>   "clk_starfive_jh71x0.reset-*" to "clk_starfive_jh7110_sys.rst-*".
> - Added a maintainer in STARFIVE JH71X0 CLOCK DRIVERS.
>
> v3: https://lore.kernel.org/all/20230314124404.117592-1-xingyu.wu@starfivetech.com/
>
> Changes since v2:
> Patch 1:
> - Dropped the modification of maintainers.
> - Modified clock and reset names in the dt-bindings header files.
> Patch 3:
> - Added 'Emil Renner Berthing' as the author.
> - Used 'default m' in Kconfig file.
> - Changed the flags of 'CLK_IGNORE_UNUSED' to 0 or 'CLK_IS_CRITICAL'.
> Patch 4:
> - Dropped the 'reset-names' property.
> - Shortened the clock and reset names in the dt-bindings header files.
> Pacth 6:
> - Used 'default m' in Kconfig file.
> - Changed the flags of 'CLK_IGNORE_UNUSED' to 0.
> - Set reset_control struct to a local variable because it just is used
>   one time in probe.
> Pacth 7:
> - Dropped the 'reset-names' property.
> Patch 9:
> - Used 'default m' in Kconfig file.
> - Set reset_control struct to a local variable because it just is used
>   one time in probe.
> Patch 10:
> - Changed the order of externel clock in alphanumerical order.
> Patch 11:
> - Dropped the 'reset-names' property in ispcrg and voutcrg node.
>
> v2: https://lore.kernel.org/all/20230221083323.302471-1-xingyu.wu@starfivetech.com/
>
> Changes since v1:
> - Modified the binding and dropped the indentation.
> - Removed the useless header files in the drivers.
> - Used an array lookup instead of a pile of conditions about parent
>   clocks' name.
> - Added clocks operation on driver remove.
>
> v1: https://lore.kernel.org/all/20230120024445.244345-1-xingyu.wu@starfivetech.com/
>
> Emil Renner Berthing (1):
>   clk: starfive: Add StarFive JH7110 System-Top-Group clock driver
>
> Xingyu Wu (8):
>   dt-bindings: clock: Add StarFive JH7110 System-Top-Group clock and
>     reset generator
>   dt-bindings: clock: Add StarFive JH7110 Image-Signal-Process clock and
>     reset generator
>   clk: starfive: Add StarFive JH7110 Image-Signal-Process clock driver
>   dt-bindings: clock: Add StarFive JH7110 Video-Output clock and reset
>     generator
>   clk: starfive: Add StarFive JH7110 Video-Output clock driver
>   reset: starfive: jh7110: Add StarFive STG/ISP/VOUT resets support
>   riscv: dts: starfive: jh7110: Add DVP and HDMI TX pixel external
>     clocks
>   riscv: dts: starfive: jh7110: Add STGCRG/ISPCRG/VOUTCRG nodes
>
>  .../clock/starfive,jh7110-ispcrg.yaml         |  87 +++++++
>  .../clock/starfive,jh7110-stgcrg.yaml         |  82 ++++++
>  .../clock/starfive,jh7110-voutcrg.yaml        |  90 +++++++
>  .../jh7110-starfive-visionfive-2.dtsi         |   8 +
>  arch/riscv/boot/dts/starfive/jh7110.dtsi      |  67 +++++
>  drivers/clk/starfive/Kconfig                  |  24 ++
>  drivers/clk/starfive/Makefile                 |   3 +
>  .../clk/starfive/clk-starfive-jh7110-isp.c    | 232 +++++++++++++++++
>  .../clk/starfive/clk-starfive-jh7110-stg.c    | 173 +++++++++++++
>  .../clk/starfive/clk-starfive-jh7110-vout.c   | 239 ++++++++++++++++++
>  drivers/clk/starfive/clk-starfive-jh7110.h    |   6 +
>  .../reset/starfive/reset-starfive-jh7110.c    |  30 +++
>  .../dt-bindings/clock/starfive,jh7110-crg.h   |  74 ++++++
>  .../dt-bindings/reset/starfive,jh7110-crg.h   |  60 +++++
>  14 files changed, 1175 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-ispcrg.yaml
>  create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml
>  create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-voutcrg.yaml
>  create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-isp.c
>  create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-stg.c
>  create mode 100644 drivers/clk/starfive/clk-starfive-jh7110-vout.c

Happy to take it through the RISC-V tree if folks want, but IMO it's 
probably better aimed at the clock/reset folks.  Either way I'd want to 
give them a chance to ack/review it, so I'm going to drop it from my 
list.

Acked-by: Palmer Dabbelt <palmer@rivosinc.com>

in case anyone's looking for it, though.

Thanks!

Re: [PATCH v7 0/9] Add STG/ISP/VOUT clock and reset drivers for StarFive JH7110

[Conor Dooley]

[-- Attachment #1: Type: text/plain, Size: 1055 bytes --]

On Wed, Jul 12, 2023 at 09:50:37AM -0700, Palmer Dabbelt wrote:
> On Wed, 12 Jul 2023 02:19:58 PDT (-0700), xingyu.wu@starfivetech.com wrote:
> > This patch serises are base on the basic JH7110 SYSCRG/AONCRG
> > drivers and add new partial clock drivers and reset supports
> > about System-Top-Group(STG), Image-Signal-Process(ISP)
> > and Video-Output(VOUT) for the StarFive JH7110 RISC-V SoC. These
> > clocks and resets could be used by DMA, VIN and Display modules.

> Happy to take it through the RISC-V tree if folks want, but IMO it's
> probably better aimed at the clock/reset folks.  Either way I'd want to give
> them a chance to ack/review it, so I'm going to drop it from my list.
> 
> Acked-by: Palmer Dabbelt <palmer@rivosinc.com>

I had a look through it & I am generally happy with it - everything has
either an R-b from DT folk or Hal on the drivers.
I was going to propose the same thing as the PLL patchset - if Emil is
happy with it, then I intend sending Stephen a PR for the drivers &
bindings.

Thanks,
Conor.

[-- Attachment #2: signature.asc --]
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Re: [PATCH v7 0/9] Add STG/ISP/VOUT clock and reset drivers for StarFive JH7110

[Xingyu Wu]

On 2023/7/13 1:01, Conor Dooley wrote:
> On Wed, Jul 12, 2023 at 09:50:37AM -0700, Palmer Dabbelt wrote:
>> On Wed, 12 Jul 2023 02:19:58 PDT (-0700), xingyu.wu@starfivetech.com wrote:
>> > This patch serises are base on the basic JH7110 SYSCRG/AONCRG
>> > drivers and add new partial clock drivers and reset supports
>> > about System-Top-Group(STG), Image-Signal-Process(ISP)
>> > and Video-Output(VOUT) for the StarFive JH7110 RISC-V SoC. These
>> > clocks and resets could be used by DMA, VIN and Display modules.
> 
>> Happy to take it through the RISC-V tree if folks want, but IMO it's
>> probably better aimed at the clock/reset folks.  Either way I'd want to give
>> them a chance to ack/review it, so I'm going to drop it from my list.
>> 
>> Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
> 
> I had a look through it & I am generally happy with it - everything has
> either an R-b from DT folk or Hal on the drivers.
> I was going to propose the same thing as the PLL patchset - if Emil is
> happy with it, then I intend sending Stephen a PR for the drivers &
> bindings.
> 

Thanks, I will send a new version soon with some modification from Emil's comments.

Best regards,
Xingyu Wu