[PATCH 0/5] spi: Add CSI support for Renesas RZ/V2M

[PATCH 0/5] spi: Add CSI support for Renesas RZ/V2M

[Fabrizio Castro]

Dear All,

This series is to add support for the Clocked Serial Interface (CSI)
IP found in the Renesas RZ/V2M SoC.

Thanks,
Fab

Fabrizio Castro (5):
  spi: dt-bindings: Add bindings for RZ/V2M CSI
  clk: renesas: r9a09g011: Add CSI related clocks
  spi: Add support for Renesas CSI
  arm64: dts: renesas: r9a09g011: Add CSI nodes
  arm64: defconfig: Enable Renesas RZ/V2M CSI driver

 .../bindings/spi/renesas,rzv2m-csi.yaml       |  70 ++
 arch/arm64/boot/dts/renesas/r9a09g011.dtsi    |  28 +
 arch/arm64/configs/defconfig                  |   1 +
 drivers/clk/renesas/r9a09g011-cpg.c           |  15 +
 drivers/spi/Kconfig                           |   6 +
 drivers/spi/Makefile                          |   1 +
 drivers/spi/spi-rzv2m-csi.c                   | 667 ++++++++++++++++++
 7 files changed, 788 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/renesas,rzv2m-csi.yaml
 create mode 100644 drivers/spi/spi-rzv2m-csi.c

-- 
2.34.1

[PATCH 1/5] spi: dt-bindings: Add bindings for RZ/V2M CSI

[Fabrizio Castro]

Add dt-bindings for the CSI IP found inside the RZ/V2M SoC.

Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
---
 .../bindings/spi/renesas,rzv2m-csi.yaml       | 70 +++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/renesas,rzv2m-csi.yaml

diff --git a/Documentation/devicetree/bindings/spi/renesas,rzv2m-csi.yaml b/Documentation/devicetree/bindings/spi/renesas,rzv2m-csi.yaml
new file mode 100644
index 000000000000..e59183e53690
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/renesas,rzv2m-csi.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/renesas,rzv2m-csi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas RZ/V2M Clocked Serial Interface (CSI)
+
+maintainers:
+  - Fabrizio Castro <fabrizio.castro.jz@renesas.com>
+  - Geert Uytterhoeven <geert+renesas@glider.be>
+
+allOf:
+  - $ref: spi-controller.yaml#
+
+properties:
+  compatible:
+    const: renesas,rzv2m-csi
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: The clock used to generate the output clock (CSICLK)
+      - description: Internal clock to access the registers (PCLK)
+
+  clock-names:
+    items:
+      - const: csiclk
+      - const: pclk
+
+  resets:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - resets
+  - power-domains
+  - '#address-cells'
+  - '#size-cells'
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/r9a09g011-cpg.h>
+    csi4: spi@a4020200 {
+        compatible = "renesas,rzv2m-csi";
+        reg = <0xa4020200 0x80>;
+        interrupts = <GIC_SPI 230 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&cpg CPG_MOD R9A09G011_CSI4_CLK>,
+                 <&cpg CPG_MOD R9A09G011_CPERI_GRPH_PCLK>;
+        clock-names = "csiclk", "pclk";
+        resets = <&cpg R9A09G011_CSI_GPH_PRESETN>;
+        power-domains = <&cpg>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+    };
-- 
2.34.1

[PATCH 4/5] arm64: dts: renesas: r9a09g011: Add CSI nodes

[Fabrizio Castro]

The Renesas RZ/V2M comes with 6 Clocked Serial Interface (CSI)
IPs (CSI0, CSI1, CSI2, CSI3, CSI4, CSI5), but Linux is only
allowed access to CSI0 and CSI4.

This commit adds SoC specific device tree support for CSI0 and
CSI4.

Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
---
 arch/arm64/boot/dts/renesas/r9a09g011.dtsi | 28 ++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a09g011.dtsi b/arch/arm64/boot/dts/renesas/r9a09g011.dtsi
index 46d67b200a66..33f2ecf42441 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g011.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a09g011.dtsi
@@ -236,6 +236,34 @@ sys: system-controller@a3f03000 {
 			reg = <0 0xa3f03000 0 0x400>;
 		};
 
+		csi0: spi@a4020000 {
+			compatible = "renesas,rzv2m-csi";
+			reg = <0 0xa4020000 0 0x80>;
+			interrupts = <GIC_SPI 226 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD R9A09G011_CSI0_CLK>,
+				 <&cpg CPG_MOD R9A09G011_CPERI_GRPG_PCLK>;
+			clock-names = "csiclk", "pclk";
+			resets = <&cpg R9A09G011_CSI_GPG_PRESETN>;
+			power-domains = <&cpg>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		csi4: spi@a4020200 {
+			compatible = "renesas,rzv2m-csi";
+			reg = <0 0xa4020200 0 0x80>;
+			interrupts = <GIC_SPI 230 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD R9A09G011_CSI4_CLK>,
+				 <&cpg CPG_MOD R9A09G011_CPERI_GRPH_PCLK>;
+			clock-names = "csiclk", "pclk";
+			resets = <&cpg R9A09G011_CSI_GPH_PRESETN>;
+			power-domains = <&cpg>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		i2c0: i2c@a4030000 {
 			#address-cells = <1>;
 			#size-cells = <0>;
-- 
2.34.1

Re: [PATCH 1/5] spi: dt-bindings: Add bindings for RZ/V2M CSI

[Conor Dooley]

[-- Attachment #1: Type: text/plain, Size: 218 bytes --]

On Wed, Jun 21, 2023 at 03:09:39PM +0100, Fabrizio Castro wrote:
> Add dt-bindings for the CSI IP found inside the RZ/V2M SoC.

Seems fine to me..
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

Cheers,
Conor.

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]