* [PATCH v8 0/2] clk: add support for TI CDCE6214
@ 2026-09-09 8:54 Sascha Hauer
2026-09-09 8:54 ` [PATCH v8 1/2] dt-bindings: clock: add TI CDCE6214 binding Sascha Hauer
2026-09-09 8:54 ` [PATCH v8 2/2] clk: add TI CDCE6214 clock driver Sascha Hauer
0 siblings, 2 replies; 5+ messages in thread
From: Sascha Hauer @ 2026-09-09 8:54 UTC (permalink / raw)
To: Michael Turquette, Stephen Boyd, Rob Herring, Krzysztof Kozlowski,
Conor Dooley
Cc: linux-clk, linux-kernel, devicetree, kernel, linux-gpio,
Sascha Hauer, Linus Walleij, Alvin Šipraga,
Krzysztof Kozlowski
The CDCE6214 is a Ultra-Low Power Clock Generator With One PLL, Four
Differential Outputs, Two Inputs, and Internal EEPROM.
This series adds a common clk framework driver for this chip along with
the dt-bindings document. The cdce6214 needs several pins to be
configured for different input/output modes which are abstracted with a
pinctrl driver.
Only changes to v7 are Reviewed-by tags added to the binding patch and
rebase to v7.3-rc2
Sascha
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
Changes in v8:
- Add reviewed-by tags to binding patch
- Link to v7: https://lore.kernel.org/r/20251001-clk-cdce6214-v7-0-5f8b44da95a5@pengutronix.de
Changes in v7:
- add missing blank line between properties in binding (Rob)
- drop unnecessary #size-cells #address-cells in binding (Rob)
- add vendor prefix to custom properties (Rob)
- Use standard units where appropriate (Rob)
- add dependency to PINCTRL and select GENERIC_PINCONF (0day bot)
- re-add missing SPDX in ti,cdce6214.h
- Link to v6: https://lore.kernel.org/r/20250903-clk-cdce6214-v6-0-b2cc0a6f282b@pengutronix.de
Changes in v6:
- merge split up patches back together (forgot to mention when sending v6)
- use pinctrl subsystem to configure pins
- Link to v5: https://lore.kernel.org/r/20250618-clk-cdce6214-v5-0-9938b8ed0b94@pengutronix.de
Changes in v5:
- Reword commit message for binding patch (Krzysztof)
- Make clock binding yaml simpler (Krzysztof)
- add link to datasheet to driver code (Stephen)
- Drop inclusion of linux/clk.h (Stephen)
- Add missing #include <linux/bitfield.h> (Kernel test robot)
- simplify cdce6214_clk_out0_get_parent() (Stephen)
- Use divider_get_val() where appropriate (Stephen)
- Add Rxx defines for registers (Stephen)
- Add define for magic value 24 (Stephen)
- introduce and use cdce6214_clk_psx_mask() (Stephen)
- Use clamp() instead of open code (Stephen)
- declare const arrays const (Stephen)
- more use of dev_err_probe() (Stephen)
- use determine_rate() instead of round_rate (Stephen)
- split out pin configuration to separate patches
- Link to v4: https://lore.kernel.org/r/20250430-clk-cdce6214-v4-0-9f15e7126ac6@pengutronix.de
Changes in v4:
- add missing '>' modifier in include/dt-bindings/clock/ti,cdce6214.h
- fix clocks maxItems should be 2
- add missing license in include/dt-bindings/clock/ti,cdce6214.h
- Fix checkpatch issues
- Link to v3: https://lore.kernel.org/r/20250410-clk-cdce6214-v3-0-d73cf9ff3d80@pengutronix.de
Changes in v3:
- Use string properties instead of int for enums
- Use units from property-units in dtschema
- Link to v2: https://lore.kernel.org/r/20250409-clk-cdce6214-v2-0-40b25b722ecb@pengutronix.de
Changes in v2:
- Use consistent quotes in binding document
- make clock-names an enum to make each clock fully optional
- drop '|' in binding description where not needed
- encode clock input mode into integer
- encode clock output mode into integer
- do not use defines for reg properties
- support setting load capacity for the oscillator via device tree
- support setting Bias current for the oscillator via device tree
- support setting polarities of CMOS outputs via device tree
- fix compatible string in driver
- remove unused struct cdce6214_config
- Link to v1: https://lore.kernel.org/r/20250408-clk-cdce6214-v1-0-bd4e7092a91f@pengutronix.de
---
Sascha Hauer (2):
dt-bindings: clock: add TI CDCE6214 binding
clk: add TI CDCE6214 clock driver
.../devicetree/bindings/clock/ti,cdce6214.yaml | 192 +++
drivers/clk/Kconfig | 9 +
drivers/clk/Makefile | 1 +
drivers/clk/clk-cdce6214.c | 1620 ++++++++++++++++++++
include/dt-bindings/clock/ti,cdce6214.h | 25 +
5 files changed, 1847 insertions(+)
---
base-commit: df2908090cda368b01ff43709f51890076c56157
change-id: 20250408-clk-cdce6214-0c74043dc267
Best regards,
--
Sascha Hauer <s.hauer@pengutronix.de>
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH v8 1/2] dt-bindings: clock: add TI CDCE6214 binding
2026-09-09 8:54 [PATCH v8 0/2] clk: add support for TI CDCE6214 Sascha Hauer
@ 2026-09-09 8:54 ` Sascha Hauer
2026-09-09 9:00 ` sashiko-bot
2026-09-09 8:54 ` [PATCH v8 2/2] clk: add TI CDCE6214 clock driver Sascha Hauer
1 sibling, 1 reply; 5+ messages in thread
From: Sascha Hauer @ 2026-09-09 8:54 UTC (permalink / raw)
To: Michael Turquette, Stephen Boyd, Rob Herring, Krzysztof Kozlowski,
Conor Dooley
Cc: linux-clk, linux-kernel, devicetree, kernel, linux-gpio,
Sascha Hauer, Linus Walleij, Alvin Šipraga,
Krzysztof Kozlowski
Add device tree binding for the CDCE6214, an Ultra-Low Power Clock
Generator With One PLL, Four Differential Outputs, Two Inputs, and
Internal EEPROM.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
.../devicetree/bindings/clock/ti,cdce6214.yaml | 192 +++++++++++++++++++++
include/dt-bindings/clock/ti,cdce6214.h | 25 +++
2 files changed, 217 insertions(+)
diff --git a/Documentation/devicetree/bindings/clock/ti,cdce6214.yaml b/Documentation/devicetree/bindings/clock/ti,cdce6214.yaml
new file mode 100644
index 0000000000000..4a9c9155894af
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti,cdce6214.yaml
@@ -0,0 +1,192 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/ti,cdce6214.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI CDCE6214 programmable clock generator with PLL
+
+maintainers:
+ - Sascha Hauer <s.hauer@pengutronix.de>
+
+description: >
+ Ultra-Low Power Clock Generator With One PLL, Four Differential Outputs,
+ Two Inputs, and Internal EEPROM
+
+ - CDCE6214: https://www.ti.com/product/CDCE6214
+
+properties:
+ compatible:
+ enum:
+ - ti,cdce6214
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ items:
+ - enum: [ priref, secref ]
+ - const: secref
+
+ '#clock-cells':
+ const: 1
+
+patternProperties:
+ '-pins$':
+ type: object
+ additionalProperties: false
+
+ patternProperties:
+ '^conf':
+ type: object
+ additionalProperties: false
+ $ref: /schemas/pinctrl/pincfg-node.yaml#
+
+ properties:
+ pins:
+ items:
+ enum: [priref, secref, out0, out1, out2, out3, out4 ]
+
+ ti,io-standard:
+ description: |
+ 1: CMOS
+ 2: LVDS
+ 3: Low-Power HCSL
+ 4: XTAL mode
+ 5: differential
+ enum: [1, 2, 3, 4, 5]
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ ti,xo-cload-femtofarads:
+ description: Load capacity for XO in Femtofarad
+
+ ti,xo-bias-microamp:
+ description: Bias current setting of the XO
+
+ ti,cmosp-mode:
+ description: |
+ Driving mode for CMOSN output:
+ 1: Low Polarity
+ 2: High Polrity
+ 3: Disable
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 3
+
+ ti,cmosn-mode:
+ description: |
+ Driving mode for CMOSN output:
+ 1: Low Polarity
+ 2: High Polrity
+ 3: Disable
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 3
+
+ allOf:
+ - if:
+ properties:
+ pins:
+ contains:
+ const: priref
+ then:
+ properties:
+ io-standard:
+ enum: [ 1, 5 ]
+
+ - if:
+ properties:
+ pins:
+ contains:
+ const: secref
+ then:
+ properties:
+ io-standard:
+ enum: [ 1, 4, 5 ]
+
+ - if:
+ properties:
+ pins:
+ contains:
+ const: out0
+ then:
+ properties:
+ io-standard:
+ enum: [ 1 ]
+
+ - if:
+ properties:
+ pins:
+ contains:
+ enum:
+ - out1
+ - out4
+ then:
+ properties:
+ io-standard:
+ enum: [ 1, 2, 3 ]
+
+ - if:
+ properties:
+ pins:
+ contains:
+ enum:
+ - out2
+ - out3
+ then:
+ properties:
+ io-standard:
+ enum: [ 2, 3 ]
+
+ required:
+ - pins
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/ti,cdce6214.h>
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ clock-generator@67 {
+ compatible = "ti,cdce6214";
+ reg = <0x67>;
+ #clock-cells = <1>;
+ clocks = <&clock_ref25m>;
+ clock-names = "priref";
+
+ cdce6214_pins: cdce6214-pins {
+ conf1 {
+ pins = "secref";
+ ti,io-standard = <CDCE6214_IOSTD_XTAL>;
+ ti,xo-cload-femtofarads = <8100>;
+ ti,xo-bias-microamp = <100>;
+ };
+
+ conf2 {
+ pins = "out1";
+ ti,io-standard = <CDCE6214_IOSTD_CMOS>;
+ ti,cmosp-mode = <CDCE6214_CMOS_MODE_HIGH>;
+ ti,cmosn-mode = <CDCE6214_CMOS_MODE_LOW>;
+ };
+
+ conf3 {
+ pins = "out4";
+ ti,io-standard = <CDCE6214_IOSTD_CMOS>;
+ ti,cmosp-mode = <CDCE6214_CMOS_MODE_HIGH>;
+ ti,cmosn-mode = <CDCE6214_CMOS_MODE_LOW>;
+ };
+ };
+ };
+ };
diff --git a/include/dt-bindings/clock/ti,cdce6214.h b/include/dt-bindings/clock/ti,cdce6214.h
new file mode 100644
index 0000000000000..41ec4f8868bbb
--- /dev/null
+++ b/include/dt-bindings/clock/ti,cdce6214.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+#ifndef _DT_BINDINGS_CLK_TI_CDCE6214_H
+#define _DT_BINDINGS_CLK_TI_CDCE6214_H
+
+/* Clock indices for the clocks provided by the CDCE6214 */
+#define CDCE6214_CLK_OUT0 2
+#define CDCE6214_CLK_OUT1 3
+#define CDCE6214_CLK_OUT2 4
+#define CDCE6214_CLK_OUT3 5
+#define CDCE6214_CLK_OUT4 6
+#define CDCE6214_CLK_PLL 7
+#define CDCE6214_CLK_PSA 8
+#define CDCE6214_CLK_PSB 9
+
+#define CDCE6214_IOSTD_CMOS 1
+#define CDCE6214_IOSTD_LVDS 2
+#define CDCE6214_IOSTD_LP_HCSL 3
+#define CDCE6214_IOSTD_XTAL 4
+#define CDCE6214_IOSTD_DIFF 5
+
+#define CDCE6214_CMOS_MODE_LOW 1
+#define CDCE6214_CMOS_MODE_HIGH 2
+#define CDCE6214_CMOS_MODE_DISABLED 3
+
+#endif /* _DT_BINDINGS_CLK_TI_CDCE6214_H */
--
2.47.3
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH v8 2/2] clk: add TI CDCE6214 clock driver
2026-09-09 8:54 [PATCH v8 0/2] clk: add support for TI CDCE6214 Sascha Hauer
2026-09-09 8:54 ` [PATCH v8 1/2] dt-bindings: clock: add TI CDCE6214 binding Sascha Hauer
@ 2026-09-09 8:54 ` Sascha Hauer
2026-09-09 9:09 ` sashiko-bot
1 sibling, 1 reply; 5+ messages in thread
From: Sascha Hauer @ 2026-09-09 8:54 UTC (permalink / raw)
To: Michael Turquette, Stephen Boyd, Rob Herring, Krzysztof Kozlowski,
Conor Dooley
Cc: linux-clk, linux-kernel, devicetree, kernel, linux-gpio,
Sascha Hauer, Linus Walleij, Alvin Šipraga
The CDCE6214 is a Ultra-Low Power Clock Generator With One PLL, Four
Differential Outputs, Two Inputs, and Internal EEPROM. This patch adds
a common clk framework driver for this chip.
- Two inputs (PRIREF and SECREF)
- Programmable 8bit divider or x2 multiplier between input and PLL
- 16b integer / 24bit fractional PLL
- Two programmable /4, /5, /6 dividers after PLL (PSA/PSB)
- Four outputs (OUT1-OUT4) with programmable 14b dividers,
muxable between PSA, PSB and PLL input
- One output (OUT0) fed from PLL input
- PRIREF can be configured as LVCMOS or differential input
- SECREF can be configured as LVCMOS, differential or oscillator input
- OUT0 is a LVCMOS output
- OUT1 and OUT4 can be configured as LVDS, LP-HCSL or LVCMOS outputs
- OUT2 and OUT3 can be configured as LVDS or LP-HCSL outputs
All clocks are registered without parent rate propagation, so each of
the clocks must be configured separately via device tree or consumer.
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
drivers/clk/Kconfig | 9 +
drivers/clk/Makefile | 1 +
drivers/clk/clk-cdce6214.c | 1620 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 1630 insertions(+)
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index f9592fd9ec2bb..8fd280f76e3ce 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -178,6 +178,15 @@ config COMMON_CLK_BM1880
help
This driver supports the clocks on Bitmain BM1880 SoC.
+config COMMON_CLK_CDCE6214
+ tristate "Clock driver for TI CDCE6214 clock synthesizer"
+ depends on I2C
+ depends on PINCTRL
+ select GENERIC_PINCONF
+ select REGMAP_I2C
+ help
+ This driver supports TI CDCE6214 programmable 1-PLL clock synthesizer.
+
config COMMON_CLK_CDCE706
tristate "Clock driver for TI CDCE706 clock synthesizer"
depends on I2C
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index b18af485d7f03..29eab6ca75851 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -61,6 +61,7 @@ obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN) += clk-axi-clkgen.o
obj-$(CONFIG_ARCH_AXXIA) += clk-axm5516.o
obj-$(CONFIG_COMMON_CLK_BD718XX) += clk-bd718x7.o
obj-$(CONFIG_COMMON_CLK_BM1880) += clk-bm1880.o
+obj-$(CONFIG_COMMON_CLK_CDCE6214) += clk-cdce6214.o
obj-$(CONFIG_COMMON_CLK_CDCE706) += clk-cdce706.o
obj-$(CONFIG_COMMON_CLK_CDCE925) += clk-cdce925.o
obj-$(CONFIG_ARCH_CLPS711X) += clk-clps711x.o
diff --git a/drivers/clk/clk-cdce6214.c b/drivers/clk/clk-cdce6214.c
new file mode 100644
index 0000000000000..d012b79f37880
--- /dev/null
+++ b/drivers/clk/clk-cdce6214.c
@@ -0,0 +1,1620 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Driver for the TI CDCE6214 clock generator
+ *
+ * datasheet available at https://www.ti.com/lit/gpn/cdce6214
+ *
+ * Copyright (c) 2023 Alvin Šipraga <alsi@bang-olufsen.dk>
+ * Copyright (c) 2025 Sascha Hauer <s.hauer@pengutronix.de>
+ */
+
+#include <linux/i2c.h>
+#include <linux/of.h>
+#include <linux/clk-provider.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/bitfield.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <dt-bindings/clock/ti,cdce6214.h>
+
+#define R0 0
+#define RO_I2C_A0 BIT(15)
+#define RO_PDN_INPUT_SEL BIT(14)
+#define RO_GPIO4_DIR_SEL BIT(13)
+#define RO_GPIO1_DIR_SEL BIT(12)
+#define RO_ZDM_CLOCKSEL BIT(10)
+#define RO_ZDM_EN BIT(8)
+#define RO_SYNC BIT(5)
+#define RO_RECAL BIT(4)
+#define RO_RESETN_SOFT BIT(3)
+#define RO_SWRST BIT(2)
+#define RO_POWERDOWN BIT(1)
+#define RO_MODE BIT(0)
+
+#define R1 1
+#define R1_GPIO4_INPUT_SEL GENMASK(15, 12)
+#define R1_GPIO3_INPUT_SEL GENMASK(11, 8)
+#define R1_GPIO2_INPUT_SEL GENMASK(7, 4)
+#define R1_GPIO1_INPUT_SEL GENMASK(3, 0)
+
+#define R2 2
+#define R2_GPIO4_OUTPUT_SEL GENMASK(9, 6)
+#define R2_GPIO1_OUTPUT_SEL GENMASK(5, 2)
+#define R2_REFSEL_SW GENMASK(1, 0)
+
+#define R3 3
+#define R3_DISABLE_CRC BIT(13)
+#define R3_UPDATE_CRC BIT(12)
+#define R3_NVMCOMMIT BIT(11)
+#define R3_REGCOMMIT BIT(10)
+#define R3_REGCOMMIT_PAGE BIT(9)
+#define R3_FREQ_DEC_REG BIT(6)
+#define R3_FREQ_INC_REG BIT(5)
+#define R3_FREQ_INC_DEC_REG_MODE BIT(4)
+#define R3_FREQ_INC_DEC_EN BIT(3)
+
+#define R4 4
+#define R4_CH4_PD BIT(7)
+#define R4_CH3_PD BIT(6)
+#define R4_CH2_PD BIT(5)
+#define R4_CH1_PD BIT(4)
+#define R4_POST_EE_DLY GENMASK(3, 0)
+
+#define R5 5
+#define R5_PLL_VCOBUFF_LDO_PD BIT(8)
+#define R5_PLL_VCO_LDO_PD BIT(7)
+#define R5_PLL_VCO_BUFF_PD BIT(6)
+#define R5_PLL_CP_LDO_PD BIT(5)
+#define R5_PLL_LOCKDET_PD BIT(4)
+#define R5_PLL_PSB_PD BIT(3)
+#define R5_PLL_PSA_PD BIT(2)
+#define R5_PLL_PFD_PD BIT(1)
+
+#define R7 7
+#define R7_NVMCRCERR BIT(5)
+#define R7_LOCK_DET_S BIT(1)
+#define R7_LOCK_DET BIT(0)
+
+#define R9 9
+#define R9_NVMLCRC GENMASK(15, 0)
+
+#define R10 10
+#define R10_NVMSCRC GENMASK(15, 0)
+
+#define R11 11
+#define R11_NVM_RD_ADDR GENMASK(5, 0)
+
+#define R12 12
+#define R12_NVM_RD_DATA GENMASK(15, 0)
+
+#define R13 13
+#define R13_NVM_WR_ADDR GENMASK(5, 0)
+
+#define R14 14
+#define R14_NVM_WR_DATA GENMASK(15, 0)
+
+#define R15 15
+#define R15_EE_LOCK GENMASK(15, 12)
+#define R15_CAL_MUTE BIT(5)
+
+#define R24 24
+#define R24_IP_PRIREF_BUF_SEL BIT(15)
+#define R24_IP_XO_CLOAD GENMASK(12, 8)
+#define R24_IP_BIAS_SEL_XO GENMASK(5, 2)
+#define R24_IP_SECREF_BUF_SEL GENMASK(1, 0)
+#define R24_IP_SECREF_BUF_SEL_XTAL 0
+#define R24_IP_SECREF_BUF_SEL_LVCMOS 1
+#define R24_IP_SECREF_BUF_SEL_DIFF 2
+
+#define R25 25
+#define R25_IP_REF_TO_OUT4_EN BIT(14)
+#define R25_IP_REF_TO_OUT3_EN BIT(13)
+#define R25_IP_REF_TO_OUT2_EN BIT(12)
+#define R25_IP_REF_TO_OUT1_EN BIT(11)
+#define R25_IP_BYP_OUT0_EN BIT(10)
+#define R25_REF_CH_MUX BIT(9)
+#define R25_IP_RDIV GENMASK(7, 0)
+
+#define R27 27
+#define R27_MASH_ORDER GENMASK(1, 0)
+
+#define R30 30
+#define R30_PLL_NDIV GENMASK(14, 0)
+
+#define R31 31
+#define R31_PLL_NUM_15_0 GENMASK(15, 0)
+
+#define R32 32
+#define R32_PLL_NUM_23_16 GENMASK(7, 0)
+
+#define R33 33
+#define R33_PLL_DEN_15_0 GENMASK(15, 0)
+
+#define R34 34
+#define R34_PLL_DEN_23_16 GENMASK(7, 0)
+
+#define R41 41
+#define R41_SSC_EN BIT(15)
+
+#define R42 42
+#define R42_SSC_TYPE BIT(5)
+#define R42_SSC_SEL GENMASK(3, 1)
+
+#define R43 43
+#define R43_FREQ_INC_DEC_DELTA GENMASK(15, 0)
+
+#define R47 47
+#define R47_PLL_CP_DN GENMASK(12, 7)
+#define R47_PLL_PSB GENMASK(6, 5)
+#define R47_PLL_PSA GENMASK(4, 3)
+
+#define R48 48
+#define R48_PLL_LF_RES GENMASK(14, 11)
+#define R48_PLL_CP_UP GENMASK(5, 0)
+
+#define R49 49
+#define R49_PLL_LF_ZCAP GENMASK(4, 0)
+
+#define R50 50
+#define R50_PLL_LOCKDET_WINDOW GENMASK(10, 8)
+
+#define R51 51
+#define R51_PLL_PFD_DLY_EN BIT(10)
+#define R51_PLL_PFD_CTRL BIT(6)
+
+#define R52 52
+#define R52_PLL_NCTRL_EN BIT(6)
+#define R52_PLL_CP_EN BIT(3)
+
+#define R55 55
+#define R55_PLL_LF_3_PCTRIM GENMASK(9, 8)
+#define R55_PLL_LF_3_PRTRIM GENMASK(7, 6)
+
+#define R56 56
+#define R56_CH1_MUX GENMASK(15, 14)
+#define R56_CH1_DIV GENMASK(13, 0)
+
+#define R57 57
+#define R57_CH1_LPHCSL_EN BIT(14)
+#define R57_CH1_1P8VDET BIT(12)
+#define R57_CH1_GLITCHLESS_EN BIT(9)
+#define R57_CH1_SYNC_DELAY GENMASK(8, 4)
+#define R57_CH1_SYNC_EN BIT(3)
+#define R57_CH1_MUTE_SEL BIT(1)
+#define R57_CH1_MUTE BIT(0)
+
+#define R59 59
+#define R59_CH1_LVDS_EN BIT(15)
+#define R59_CH1_CMOSN_EN BIT(14)
+#define R59_CH1_CMOSP_EN BIT(13)
+#define R59_CH1_CMOSN_POL BIT(12)
+#define R59_CH1_CMOSP_POL BIT(11)
+
+#define R60 60
+#define R60_CH1_DIFFBUF_IBIAS_TRIM GENMASK(15, 12)
+#define R60_CH1_LVDS_CMTRIM_INC GENMASK(11, 10)
+#define R60_CH1_LVDS_CMTRIM_DEC GENMASK(5, 4)
+#define R60_CH1_CMOS_SLEW_RATE_CTRL GENMASK(3, 0)
+
+#define R62 62
+#define R62_CH2_MUX GENMASK(15, 14)
+#define R62_CH2_DIV GENMASK(13, 0)
+
+#define R63 63
+#define R63_CH2_LPHCSL_EN BIT(13)
+#define R63_CH2_1P8VDET BIT(12)
+#define R63_CH2_GLITCHLESS_EN BIT(9)
+#define R63_CH2_SYNC_DELAY GENMASK(8, 4)
+#define R63_CH2_SYNC_EN BIT(3)
+#define R63_CH2_MUTE_SEL BIT(1)
+#define R63_CH2_MUTE BIT(0)
+
+#define R65 65
+#define R65_CH2_LVDS_CMTRIM_DEC GENMASK(14, 13)
+#define R65_CH2_LVDS_EN BIT(11)
+
+#define R66 66
+#define R66_CH2_LVDS_CMTRIM_IN GENMASK(5, 4)
+#define R66_CH2_DIFFBUF_IBIAS_TRIM GENMASK(3, 0)
+
+#define R67 67
+#define R67_CH3_MUX GENMASK(15, 14)
+#define R67_CH3_DIV GENMASK(13, 0)
+
+#define R68 68
+#define R68_CH3_LPHCSL_EN BIT(13)
+#define R68_CH3_1P8VDET BIT(12)
+#define R68_CH3_GLITCHLESS_EN BIT(9)
+#define R68_CH3_SYNC_DELAY GENMASK(8, 4)
+#define R68_CH3_SYNC_EN BIT(3)
+#define R68_CH3_MUTE_SEL BIT(1)
+#define R68_CH3_MUTE BIT(0)
+
+#define R70 70
+#define R70_CH3_LVDS_EN BIT(11)
+
+#define R71 71
+#define R71_CH3_LVDS_CMTRIM_DEC GENMASK(10, 9)
+#define R71_CH3_LVDS_CMTRIM_INC GENMASK(5, 4)
+#define R71_CH3_DIFFBUF_IBIAS_TR GENMASK(3, 0)
+
+#define R72 72
+#define R72_CH4_MUX GENMASK(15, 14)
+#define R72_CH4_DIV GENMASK(13, 0)
+
+#define R73 73
+#define R73_CH4_LPHCSL_EN BIT(13)
+#define R73_CH4_1P8VDET BIT(12)
+#define R73_CH4_GLITCHLESS_EN BIT(9)
+#define R73_CH4_SYNC_DELAY GENMASK(8, 4)
+#define R73_CH4_SYNC_EN BIT(3)
+#define R73_CH4_MUTE_SEL BIT(1)
+#define R73_CH4_MUTE BIT(0)
+
+#define R75 75
+#define R75_CH4_LVDS_EN BIT(15)
+#define R75_CH4_CMOSP_EN BIT(14)
+#define R75_CH4_CMOSN_EN BIT(13)
+#define R75_CH4_CMOSP_POL BIT(12)
+#define R75_CH4_CMOSN_POL BIT(11)
+
+#define R76 76
+#define R76_CH4_DIFFBUF_IBIAS_TRIM GENMASK(9, 6)
+#define R76_CH4_LVDS_CMTRIM_IN GENMASK(5, 4)
+#define R76_CH4_CMOS_SLEW_RATE_CTRL GENMASK(3, 0)
+
+#define R77 77
+#define R77_CH4_LVDS_CMTRIM_DEC GENMASK(1, 0)
+
+#define R78 78
+#define R78_CH0_EN BIT(12)
+
+#define R79 79
+#define R79_SAFETY_1P8V_MODE BIT(9)
+#define R79_CH0_CMOS_SLEW_RATE_CTRL GENMASK(3, 0)
+
+#define R81 81
+#define R81_PLL_LOCK_MASK BIT(3)
+
+#define CDCE6214_VCO_MIN 2335000000
+#define CDCE6214_VCO_MAX 2625000000
+#define CDCE6214_PLL_NDIV_MIN 24
+#define CDCE6214_DENOM_DEFAULT 0x1000000
+
+#define CDCE6214_CLK_PRIREF 0
+#define CDCE6214_CLK_SECREF 1
+
+static const char * const clk_names[] = {
+ [CDCE6214_CLK_PRIREF] = "priref",
+ [CDCE6214_CLK_SECREF] = "secref",
+ [CDCE6214_CLK_OUT0] = "out0",
+ [CDCE6214_CLK_OUT1] = "out1",
+ [CDCE6214_CLK_OUT2] = "out2",
+ [CDCE6214_CLK_OUT3] = "out3",
+ [CDCE6214_CLK_OUT4] = "out4",
+ [CDCE6214_CLK_PLL] = "pll",
+ [CDCE6214_CLK_PSA] = "psa",
+ [CDCE6214_CLK_PSB] = "psb",
+};
+
+#define CDCE6214_NUM_CLOCKS ARRAY_SIZE(clk_names)
+
+struct cdce6214;
+
+struct cdce6214_clock {
+ struct clk_hw hw;
+ struct cdce6214 *priv;
+ unsigned int index;
+};
+
+struct cdce6214 {
+ struct i2c_client *client;
+ struct device *dev;
+ struct regmap *regmap;
+ struct gpio_desc *reset_gpio;
+ struct cdce6214_clock clk[CDCE6214_NUM_CLOCKS];
+};
+
+static inline struct cdce6214_clock *hw_to_cdce6214_clk(struct clk_hw *hw)
+{
+ return container_of(hw, struct cdce6214_clock, hw);
+}
+
+static struct clk_hw *cdce6214_of_clk_get(struct of_phandle_args *clkspec,
+ void *data)
+{
+ struct cdce6214 *priv = data;
+ unsigned int idx = clkspec->args[0];
+
+ if (idx >= CDCE6214_NUM_CLOCKS)
+ return ERR_PTR(-EINVAL);
+ if (idx <= CDCE6214_CLK_SECREF)
+ return ERR_PTR(-EINVAL);
+
+ return &priv->clk[idx].hw;
+}
+
+static const struct regmap_config cdce6214_regmap_config = {
+ .reg_bits = 16,
+ .val_bits = 16,
+ .reg_stride = 1,
+ .max_register = 0x0055,
+};
+
+static int cdce6214_configure(struct cdce6214 *priv)
+{
+ regmap_update_bits(priv->regmap, R2, R2_REFSEL_SW,
+ FIELD_PREP(R2_REFSEL_SW, 2));
+
+ return 0;
+}
+
+static unsigned long cdce6214_clk_out0_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+ unsigned int val, div;
+
+ regmap_read(priv->regmap, R25, &val);
+
+ div = FIELD_GET(R25_IP_RDIV, val);
+
+ if (!div)
+ return parent_rate * 2;
+
+ return DIV_ROUND_UP_ULL((u64)parent_rate, div);
+}
+
+static int cdce6214_clk_out0_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
+{
+ unsigned int div;
+
+ if (req->rate >= req->best_parent_rate)
+ req->rate = req->best_parent_rate * 2;
+
+ div = DIV_ROUND_CLOSEST(req->best_parent_rate, req->rate);
+
+ req->rate = DIV_ROUND_UP_ULL((u64)req->best_parent_rate, div);
+
+ return 0;
+}
+
+static int cdce6214_clk_out0_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+ unsigned int div;
+
+ if (rate >= parent_rate) {
+ regmap_update_bits(priv->regmap, R25, R25_IP_RDIV, FIELD_PREP(R25_IP_RDIV, 0));
+ return 0;
+ }
+
+ div = DIV_ROUND_CLOSEST(parent_rate, rate);
+ if (div > R25_IP_RDIV)
+ div = R25_IP_RDIV;
+
+ regmap_update_bits(priv->regmap, R25, R25_IP_RDIV, FIELD_PREP(R25_IP_RDIV, div));
+
+ return 0;
+}
+
+static u8 cdce6214_clk_out0_get_parent(struct clk_hw *hw)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+ unsigned int val;
+
+ regmap_read(priv->regmap, R2, &val);
+
+ if (FIELD_GET(R2_REFSEL_SW, val) == 2)
+ return 1;
+
+ return 0;
+}
+
+static int cdce6214_clk_out0_set_parent(struct clk_hw *hw, u8 index)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+
+ regmap_update_bits(priv->regmap, R25, R25_REF_CH_MUX, FIELD_PREP(R25_REF_CH_MUX, index));
+
+ return 0;
+}
+
+static const struct clk_ops cdce6214_clk_out0_ops = {
+ .recalc_rate = cdce6214_clk_out0_recalc_rate,
+ .determine_rate = cdce6214_clk_out0_determine_rate,
+ .set_rate = cdce6214_clk_out0_set_rate,
+ .get_parent = cdce6214_clk_out0_get_parent,
+ .set_parent = cdce6214_clk_out0_set_parent,
+};
+
+static unsigned int cdce6214_clk_out_mask(unsigned int index)
+{
+ switch (index) {
+ case CDCE6214_CLK_OUT1:
+ return R4_CH1_PD;
+ case CDCE6214_CLK_OUT2:
+ return R4_CH2_PD;
+ case CDCE6214_CLK_OUT3:
+ return R4_CH3_PD;
+ case CDCE6214_CLK_OUT4:
+ return R4_CH4_PD;
+ default:
+ return 0;
+ };
+}
+
+static int cdce6214_clk_out_prepare(struct clk_hw *hw)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+ unsigned int mask = cdce6214_clk_out_mask(clock->index);
+
+ if (!mask)
+ return -EINVAL;
+
+ return regmap_clear_bits(priv->regmap, R4, mask);
+}
+
+static void cdce6214_clk_out_unprepare(struct clk_hw *hw)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+ unsigned int mask = cdce6214_clk_out_mask(clock->index);
+
+ if (!mask)
+ return;
+
+ regmap_set_bits(priv->regmap, R4, mask);
+}
+
+static int cdce6214_clk_out_is_prepared(struct clk_hw *hw)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+ unsigned int mask = cdce6214_clk_out_mask(clock->index);
+ unsigned int val;
+
+ if (!mask)
+ return -EINVAL;
+
+ regmap_read(priv->regmap, R4, &val);
+
+ return !(val & mask);
+}
+
+static unsigned long cdce6214_clk_out_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+ unsigned int val, div;
+ unsigned long r;
+
+ switch (clock->index) {
+ case CDCE6214_CLK_OUT1:
+ regmap_read(priv->regmap, R56, &val);
+ div = FIELD_GET(R56_CH1_DIV, val);
+ break;
+ case CDCE6214_CLK_OUT2:
+ regmap_read(priv->regmap, R62, &val);
+ div = FIELD_GET(R62_CH2_DIV, val);
+ break;
+ case CDCE6214_CLK_OUT3:
+ regmap_read(priv->regmap, R67, &val);
+ div = FIELD_GET(R67_CH3_DIV, val);
+ break;
+ case CDCE6214_CLK_OUT4:
+ regmap_read(priv->regmap, R72, &val);
+ div = FIELD_GET(R72_CH4_DIV, val);
+ break;
+ };
+
+ if (!div)
+ div = 1;
+
+ r = DIV_ROUND_UP_ULL((u64)parent_rate, div);
+
+ return r;
+}
+
+static unsigned int cdce6214_get_out_div(unsigned long rate, unsigned long parent_rate)
+{
+ unsigned int div;
+
+ div = divider_get_val(rate, parent_rate, NULL, 14, CLK_DIVIDER_ONE_BASED);
+
+ if (div < 1)
+ div = 1;
+
+ return div;
+}
+
+static int cdce6214_clk_out_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
+{
+ unsigned int div = cdce6214_get_out_div(req->rate, req->best_parent_rate);
+
+ req->rate = DIV_ROUND_UP_ULL((u64)req->best_parent_rate, div);
+
+ return 0;
+}
+
+static int cdce6214_clk_out_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ unsigned int div = cdce6214_get_out_div(rate, parent_rate);
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+
+ switch (clock->index) {
+ case CDCE6214_CLK_OUT1:
+ regmap_update_bits(priv->regmap, R56, R56_CH1_DIV,
+ FIELD_PREP(R56_CH1_DIV, div));
+ break;
+ case CDCE6214_CLK_OUT2:
+ regmap_update_bits(priv->regmap, R62, R62_CH2_DIV,
+ FIELD_PREP(R62_CH2_DIV, div));
+ break;
+ case CDCE6214_CLK_OUT3:
+ regmap_update_bits(priv->regmap, R67, R67_CH3_DIV,
+ FIELD_PREP(R67_CH3_DIV, div));
+ break;
+ case CDCE6214_CLK_OUT4:
+ regmap_update_bits(priv->regmap, R72, R72_CH4_DIV,
+ FIELD_PREP(R72_CH4_DIV, div));
+ break;
+ };
+
+ return 0;
+}
+
+static u8 cdce6214_clk_out_get_parent(struct clk_hw *hw)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+ unsigned int val, idx;
+
+ switch (clock->index) {
+ case CDCE6214_CLK_OUT1:
+ regmap_read(priv->regmap, R56, &val);
+ idx = FIELD_GET(R56_CH1_MUX, val);
+ break;
+ case CDCE6214_CLK_OUT2:
+ regmap_read(priv->regmap, R62, &val);
+ idx = FIELD_GET(R62_CH2_MUX, val);
+ break;
+ case CDCE6214_CLK_OUT3:
+ regmap_read(priv->regmap, R67, &val);
+ idx = FIELD_GET(R67_CH3_MUX, val);
+ break;
+ case CDCE6214_CLK_OUT4:
+ regmap_read(priv->regmap, R72, &val);
+ idx = FIELD_GET(R72_CH4_MUX, val);
+ break;
+ };
+
+ return idx;
+}
+
+static int cdce6214_clk_out_set_parent(struct clk_hw *hw, u8 index)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+
+ switch (clock->index) {
+ case CDCE6214_CLK_OUT1:
+ regmap_update_bits(priv->regmap, R56, R56_CH1_MUX, FIELD_PREP(R56_CH1_MUX, index));
+ break;
+ case CDCE6214_CLK_OUT2:
+ regmap_update_bits(priv->regmap, R62, R62_CH2_MUX, FIELD_PREP(R62_CH2_MUX, index));
+ break;
+ case CDCE6214_CLK_OUT3:
+ regmap_update_bits(priv->regmap, R67, R67_CH3_MUX, FIELD_PREP(R67_CH3_MUX, index));
+ break;
+ case CDCE6214_CLK_OUT4:
+ regmap_update_bits(priv->regmap, R72, R72_CH4_MUX, FIELD_PREP(R72_CH4_MUX, index));
+ break;
+ };
+
+ return 0;
+}
+
+static const struct clk_ops cdce6214_clk_out_ops = {
+ .prepare = cdce6214_clk_out_prepare,
+ .unprepare = cdce6214_clk_out_unprepare,
+ .is_prepared = cdce6214_clk_out_is_prepared,
+ .recalc_rate = cdce6214_clk_out_recalc_rate,
+ .determine_rate = cdce6214_clk_out_determine_rate,
+ .set_rate = cdce6214_clk_out_set_rate,
+ .get_parent = cdce6214_clk_out_get_parent,
+ .set_parent = cdce6214_clk_out_set_parent,
+};
+
+static int pll_calc_values(unsigned long parent_rate, unsigned long out,
+ unsigned long *ndiv, unsigned long *num, unsigned long *den)
+{
+ u64 a;
+
+ if (out < CDCE6214_VCO_MIN || out > CDCE6214_VCO_MAX)
+ return -EINVAL;
+
+ *den = 10000000;
+ *ndiv = out / parent_rate;
+ a = out % parent_rate;
+ a *= *den;
+ do_div(a, parent_rate);
+ *num = a;
+
+ return 0;
+}
+
+static unsigned long cdce6214_clk_pll_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+ unsigned long ndiv, num, den;
+ unsigned int val;
+
+ regmap_read(priv->regmap, R30, &val);
+ ndiv = FIELD_GET(R30_PLL_NDIV, val);
+
+ regmap_read(priv->regmap, R31, &val);
+ num = FIELD_GET(R31_PLL_NUM_15_0, val);
+
+ regmap_read(priv->regmap, R32, &val);
+ num |= FIELD_GET(R32_PLL_NUM_23_16, val) << 16;
+
+ regmap_read(priv->regmap, R33, &val);
+ den = FIELD_GET(R33_PLL_DEN_15_0, val);
+
+ regmap_read(priv->regmap, R34, &val);
+ den |= FIELD_GET(R34_PLL_DEN_23_16, val) << 16;
+
+ if (!den)
+ den = CDCE6214_DENOM_DEFAULT;
+
+ return parent_rate * ndiv + DIV_ROUND_CLOSEST(parent_rate * num, den);
+}
+
+static int cdce6214_clk_pll_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
+{
+ req->rate = clamp(req->rate, CDCE6214_VCO_MIN, CDCE6214_VCO_MAX);
+
+ if (req->rate < req->best_parent_rate * CDCE6214_PLL_NDIV_MIN)
+ return -EINVAL;
+
+ req->min_rate = CDCE6214_VCO_MIN;
+ req->max_rate = CDCE6214_VCO_MAX;
+
+ return 0;
+}
+
+static bool cdce6214_pll_locked(struct cdce6214 *priv)
+{
+ unsigned int val;
+
+ regmap_read(priv->regmap, R7, &val);
+
+ return val & R7_LOCK_DET;
+}
+
+static int cdce6214_wait_pll_lock(struct cdce6214 *priv)
+{
+ unsigned int val;
+ int ret;
+
+ ret = regmap_read_poll_timeout(priv->regmap, R7, val,
+ val & R7_LOCK_DET, 0, 1000);
+ if (ret)
+ dev_err(priv->dev, "Timeout waiting for PLL lock\n");
+
+ return ret;
+}
+
+#define R5_PLL_POWER_BITS (R5_PLL_VCOBUFF_LDO_PD | \
+ R5_PLL_VCO_LDO_PD | \
+ R5_PLL_VCO_BUFF_PD)
+
+static int cdce6214_clk_pll_prepare(struct clk_hw *hw)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+
+ regmap_clear_bits(priv->regmap, R5, R5_PLL_POWER_BITS);
+
+ regmap_set_bits(priv->regmap, R0, RO_RECAL);
+
+ return cdce6214_wait_pll_lock(priv);
+}
+
+static void cdce6214_clk_pll_unprepare(struct clk_hw *hw)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+
+ regmap_set_bits(priv->regmap, R5, R5_PLL_POWER_BITS);
+}
+
+static bool cdce6214_clk_pll_powered(struct cdce6214 *priv)
+{
+ unsigned int val;
+
+ regmap_read(priv->regmap, R5, &val);
+
+ return (val & R5_PLL_POWER_BITS) == 0;
+}
+
+static int cdce6214_clk_pll_is_prepared(struct clk_hw *hw)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+
+ return cdce6214_pll_locked(priv);
+}
+
+static int cdce6214_clk_pll_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+ unsigned long ndiv, num, den;
+ int ret;
+
+ ret = pll_calc_values(parent_rate, rate, &ndiv, &num, &den);
+ if (ret < 0)
+ return ret;
+
+ if (den == CDCE6214_DENOM_DEFAULT)
+ den = 0;
+
+ regmap_update_bits(priv->regmap, R34, R34_PLL_DEN_23_16,
+ FIELD_PREP(R34_PLL_DEN_23_16, den >> 16));
+ regmap_update_bits(priv->regmap, R33, R33_PLL_DEN_15_0,
+ FIELD_PREP(R33_PLL_DEN_15_0, den & 0xffff));
+ regmap_update_bits(priv->regmap, R32, R32_PLL_NUM_23_16,
+ FIELD_PREP(R32_PLL_NUM_23_16, num >> 16));
+ regmap_update_bits(priv->regmap, R31, R31_PLL_NUM_15_0,
+ FIELD_PREP(R31_PLL_NUM_15_0, num & 0xffff));
+ regmap_update_bits(priv->regmap, R30, R30_PLL_NDIV,
+ FIELD_PREP(R30_PLL_NDIV, ndiv));
+
+ regmap_update_bits(priv->regmap, R3, R3_FREQ_INC_DEC_REG_MODE | R3_FREQ_INC_DEC_EN,
+ R3_FREQ_INC_DEC_REG_MODE | R3_FREQ_INC_DEC_EN);
+
+ if (cdce6214_clk_pll_powered(priv)) {
+ regmap_set_bits(priv->regmap, R0, RO_RECAL);
+ ret = cdce6214_wait_pll_lock(priv);
+ }
+
+ return ret;
+}
+
+static const struct clk_ops cdce6214_clk_pll_ops = {
+ .prepare = cdce6214_clk_pll_prepare,
+ .unprepare = cdce6214_clk_pll_unprepare,
+ .is_prepared = cdce6214_clk_pll_is_prepared,
+ .recalc_rate = cdce6214_clk_pll_recalc_rate,
+ .determine_rate = cdce6214_clk_pll_determine_rate,
+ .set_rate = cdce6214_clk_pll_set_rate,
+};
+
+static unsigned int cdce6214_clk_psx_mask(int index)
+{
+ switch (index) {
+ case CDCE6214_CLK_PSA:
+ return R5_PLL_PSA_PD;
+ case CDCE6214_CLK_PSB:
+ return R5_PLL_PSB_PD;
+ default:
+ return 0;
+ };
+}
+
+static int cdce6214_clk_psx_prepare(struct clk_hw *hw)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+ unsigned int mask = cdce6214_clk_psx_mask(clock->index);
+
+ if (!mask)
+ return -EINVAL;
+
+ return regmap_clear_bits(priv->regmap, R5, mask);
+}
+
+static void cdce6214_clk_psx_unprepare(struct clk_hw *hw)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+ unsigned int mask = cdce6214_clk_psx_mask(clock->index);
+
+ if (!mask)
+ return;
+
+ regmap_set_bits(priv->regmap, R5, mask);
+}
+
+static int cdce6214_clk_psx_is_prepared(struct clk_hw *hw)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+ unsigned int mask = cdce6214_clk_psx_mask(clock->index);
+ unsigned int val;
+
+ if (!mask)
+ return -EINVAL;
+
+ regmap_read(priv->regmap, R5, &val);
+
+ return !(val & mask);
+}
+
+static unsigned long cdce6214_clk_psx_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+ const unsigned int psx[] = { 4, 5, 6, 6 };
+ unsigned int val, div;
+
+ regmap_read(priv->regmap, R47, &val);
+
+ switch (clock->index) {
+ case CDCE6214_CLK_PSA:
+ div = psx[FIELD_GET(R47_PLL_PSA, val)];
+ break;
+ case CDCE6214_CLK_PSB:
+ div = psx[FIELD_GET(R47_PLL_PSB, val)];
+ break;
+ };
+
+ return DIV_ROUND_UP_ULL((u64)parent_rate, div);
+}
+
+static int cdce6214_get_psx_div(unsigned long rate, unsigned long parent_rate)
+{
+ unsigned int div = DIV_ROUND_CLOSEST(parent_rate, rate);
+
+ return clamp(div, 4, 6);
+}
+
+static int cdce6214_clk_psx_determine_rate(struct clk_hw *hw,
+ struct clk_rate_request *req)
+{
+ unsigned int div = cdce6214_get_psx_div(req->rate, req->best_parent_rate);
+
+ req->rate = DIV_ROUND_UP_ULL((u64)req->best_parent_rate, div);
+
+ return 0;
+}
+
+static int cdce6214_clk_psx_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ unsigned int div = cdce6214_get_psx_div(rate, parent_rate);
+ struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
+ struct cdce6214 *priv = clock->priv;
+
+ switch (clock->index) {
+ case CDCE6214_CLK_PSA:
+ regmap_update_bits(priv->regmap, R47, R47_PLL_PSA,
+ FIELD_PREP(R47_PLL_PSA, div));
+ break;
+ case CDCE6214_CLK_PSB:
+ regmap_update_bits(priv->regmap, R47, R47_PLL_PSB,
+ FIELD_PREP(R47_PLL_PSB, div));
+ break;
+ };
+
+ return 0;
+}
+
+static const struct clk_ops cdce6214_clk_psx_ops = {
+ .prepare = cdce6214_clk_psx_prepare,
+ .unprepare = cdce6214_clk_psx_unprepare,
+ .is_prepared = cdce6214_clk_psx_is_prepared,
+ .recalc_rate = cdce6214_clk_psx_recalc_rate,
+ .determine_rate = cdce6214_clk_psx_determine_rate,
+ .set_rate = cdce6214_clk_psx_set_rate,
+};
+
+static int cdce6214_clk_register(struct cdce6214 *priv)
+{
+ struct clk_init_data init[CDCE6214_NUM_CLOCKS] = { 0 };
+ struct clk_parent_data pdata_out0[2] = {};
+ struct clk_parent_data pdata_out[4] = {};
+ struct clk_parent_data pdata_pll = {};
+ struct clk_parent_data pdata_psx = {};
+ int i, ret;
+
+ pdata_out0[0].fw_name = "priref";
+ pdata_out0[1].fw_name = "secref";
+
+ init[CDCE6214_CLK_OUT0].ops = &cdce6214_clk_out0_ops;
+ init[CDCE6214_CLK_OUT0].num_parents = ARRAY_SIZE(pdata_out);
+ init[CDCE6214_CLK_OUT0].parent_data = pdata_out0;
+ init[CDCE6214_CLK_OUT0].flags = CLK_SET_RATE_NO_REPARENT;
+
+ pdata_out[0].hw = &priv->clk[CDCE6214_CLK_PSA].hw;
+ pdata_out[1].hw = &priv->clk[CDCE6214_CLK_PSB].hw;
+ pdata_out[3].hw = &priv->clk[CDCE6214_CLK_OUT0].hw;
+
+ for (i = CDCE6214_CLK_OUT1; i <= CDCE6214_CLK_OUT4; i++) {
+ init[i].ops = &cdce6214_clk_out_ops;
+ init[i].num_parents = ARRAY_SIZE(pdata_out);
+ init[i].parent_data = pdata_out;
+ init[i].flags = CLK_SET_RATE_NO_REPARENT;
+ }
+
+ init[CDCE6214_CLK_PLL].ops = &cdce6214_clk_pll_ops;
+ init[CDCE6214_CLK_PLL].num_parents = 1;
+ pdata_pll.hw = &priv->clk[CDCE6214_CLK_OUT0].hw;
+ init[CDCE6214_CLK_PLL].parent_data = &pdata_pll;
+
+ pdata_psx.hw = &priv->clk[CDCE6214_CLK_PLL].hw;
+ for (i = CDCE6214_CLK_PSA; i <= CDCE6214_CLK_PSB; i++) {
+ init[i].ops = &cdce6214_clk_psx_ops;
+ init[i].num_parents = 1;
+ init[i].parent_data = &pdata_psx;
+ }
+
+ for (i = 0; i < CDCE6214_NUM_CLOCKS; i++) {
+ struct cdce6214_clock *clk = &priv->clk[i];
+ char name[128];
+
+ if (!init[i].ops)
+ continue;
+
+ snprintf(name, sizeof(name), "%s_%s", dev_name(priv->dev), clk_names[i]);
+ init[i].name = name;
+ clk->hw.init = &init[i];
+ clk->priv = priv;
+ clk->index = i;
+ ret = devm_clk_hw_register(priv->dev, &clk->hw);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+enum cdce6214_pin_name {
+ NONE,
+ PRIREF,
+ SECREF,
+ OUT0,
+ OUT1,
+ OUT2,
+ OUT3,
+ OUT4,
+};
+
+static const struct pinctrl_pin_desc cdce6214_pinctrl_pins[] = {
+ PINCTRL_PIN(PRIREF, "priref"),
+ PINCTRL_PIN(SECREF, "secref"),
+ PINCTRL_PIN(OUT0, "out0"),
+ PINCTRL_PIN(OUT1, "out1"),
+ PINCTRL_PIN(OUT2, "out2"),
+ PINCTRL_PIN(OUT3, "out3"),
+ PINCTRL_PIN(OUT4, "out4"),
+};
+
+enum cdce6214_io_standards {
+ cdce6214_iostd_min,
+ cdce6214_iostd_cmos,
+ cdce6214_iostd_lvds,
+ cdce6214_iostd_lp_hcsl,
+ cdce6214_iostd_xtal,
+ cdce6214_iostd_diff,
+ cdce6214_iostd_max
+};
+
+#define PIN_CONFIG_IOSTANDARD (PIN_CONFIG_END + 1)
+#define PIN_CONFIG_CMOSN_MODE (PIN_CONFIG_END + 2)
+#define PIN_CONFIG_CMOSP_MODE (PIN_CONFIG_END + 3)
+#define PIN_CONFIG_XO_CLOAD (PIN_CONFIG_END + 4)
+#define PIN_CONFIG_XO_BIAS (PIN_CONFIG_END + 5)
+
+static const struct pinconf_generic_params cdce6214_dt_params[] = {
+ {"ti,io-standard", PIN_CONFIG_IOSTANDARD, cdce6214_iostd_min},
+ {"ti,cmosn-mode", PIN_CONFIG_CMOSN_MODE, CDCE6214_CMOS_MODE_LOW},
+ {"ti,cmosp-mode", PIN_CONFIG_CMOSP_MODE, CDCE6214_CMOS_MODE_HIGH},
+ {"ti,xo-cload-femtofarad", PIN_CONFIG_XO_CLOAD, CDCE6214_CMOS_MODE_HIGH},
+ {"ti,xo-bias-microampere", PIN_CONFIG_XO_BIAS, CDCE6214_CMOS_MODE_HIGH},
+};
+
+static const struct pin_config_item cdce6214_conf_items[] = {
+ PCONFDUMP(PIN_CONFIG_IOSTANDARD, "IO-standard", NULL, true),
+ PCONFDUMP(PIN_CONFIG_CMOSN_MODE, "CMOS-N mode", NULL, true),
+ PCONFDUMP(PIN_CONFIG_CMOSP_MODE, "CMOS-P mode", NULL, true),
+ PCONFDUMP(PIN_CONFIG_XO_CLOAD, "XO cload", "fF", true),
+ PCONFDUMP(PIN_CONFIG_XO_BIAS, "XO bias", "uA", true),
+};
+
+static int cdce6214_pinconf_get_iostd(struct cdce6214 *priv, unsigned int pin)
+{
+ struct regmap *reg = priv->regmap;
+ unsigned int r24, r57, r59, r63, r65, r68, r70, r73, r75;
+
+ switch (pin) {
+ case OUT0:
+ return cdce6214_iostd_cmos;
+ case OUT1:
+ regmap_read(reg, R57, &r57);
+ regmap_read(reg, R59, &r59);
+ if (r59 & R59_CH1_LVDS_EN)
+ return cdce6214_iostd_lvds;
+ if (r57 & R57_CH1_LPHCSL_EN)
+ return cdce6214_iostd_lp_hcsl;
+ return cdce6214_iostd_cmos;
+ case OUT2:
+ regmap_read(reg, R63, &r63);
+ regmap_read(reg, R65, &r65);
+ if (r65 & R65_CH2_LVDS_EN)
+ return cdce6214_iostd_lvds;
+ if (r63 & R63_CH2_LPHCSL_EN)
+ return cdce6214_iostd_lp_hcsl;
+ return cdce6214_iostd_min;
+ case OUT3:
+ regmap_read(reg, R68, &r68);
+ regmap_read(reg, R70, &r70);
+ if (r70 & R70_CH3_LVDS_EN)
+ return cdce6214_iostd_lvds;
+ if (r68 & R68_CH3_LPHCSL_EN)
+ return cdce6214_iostd_lp_hcsl;
+ return cdce6214_iostd_min;
+ case OUT4:
+ regmap_read(reg, R73, &r73);
+ regmap_read(reg, R75, &r75);
+ if (r75 & R75_CH4_LVDS_EN)
+ return cdce6214_iostd_lvds;
+ if (r73 & R73_CH4_LPHCSL_EN)
+ return cdce6214_iostd_lp_hcsl;
+ return cdce6214_iostd_cmos;
+ case PRIREF:
+ regmap_read(reg, R24, &r24);
+ if (r24 & R24_IP_PRIREF_BUF_SEL)
+ return cdce6214_iostd_lvds;
+ else
+ return cdce6214_iostd_cmos;
+ case SECREF:
+ regmap_read(reg, R24, &r24);
+ if (r24 & R24_IP_SECREF_BUF_SEL)
+ return cdce6214_iostd_cmos;
+ else
+ return cdce6214_iostd_xtal;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int cdce6214_pinconf_get_cmos_mode(struct cdce6214 *priv, unsigned int pin)
+{
+ unsigned int reg, val;
+
+ switch (pin) {
+ case OUT0:
+ case OUT2:
+ case OUT3:
+ case PRIREF:
+ case SECREF:
+ return -ENOTSUPP;
+ case OUT1:
+ reg = R59;
+ break;
+ case OUT4:
+ reg = R75;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ regmap_read(priv->regmap, reg, &val);
+
+ return val;
+}
+
+static int cdce6214_pinconf_get_cmosn_mode(struct cdce6214 *priv, unsigned int pin)
+{
+ int val;
+
+ val = cdce6214_pinconf_get_cmos_mode(priv, pin);
+ if (val < 0)
+ return val;
+
+ if (!(val & R59_CH1_CMOSN_EN))
+ return CDCE6214_CMOS_MODE_DISABLED;
+ if (val & R59_CH1_CMOSN_POL)
+ return CDCE6214_CMOS_MODE_HIGH;
+ else
+ return CDCE6214_CMOS_MODE_LOW;
+}
+
+static int cdce6214_pinconf_get_cmosp_mode(struct cdce6214 *priv, unsigned int pin)
+{
+ int val;
+
+ val = cdce6214_pinconf_get_cmos_mode(priv, pin);
+ if (val < 0)
+ return val;
+
+ if (!(val & R59_CH1_CMOSP_EN))
+ return CDCE6214_CMOS_MODE_DISABLED;
+ if (val & R59_CH1_CMOSP_POL)
+ return CDCE6214_CMOS_MODE_HIGH;
+ else
+ return CDCE6214_CMOS_MODE_LOW;
+}
+
+static const unsigned short ip_xo_cload[] = {
+ /* index is the register value */
+ 3000, 3200, 3400, 3600, 3800, 4000, 4200, 4400,
+ 4600, 4800, 5000, 5200, 5400, 5600, 5800, 6000,
+ 6200, 6400, 6500, 6700, 6900, 7100, 7300, 7500,
+ 7700, 7900, 8100, 8300, 8500, 8700, 8900, 9000
+};
+
+static int cdce6214_pinconf_get_xo_cload(struct cdce6214 *priv, unsigned int pin)
+{
+ unsigned int val;
+
+ if (pin != SECREF)
+ return -ENOTSUPP;
+
+ regmap_read(priv->regmap, R24, &val);
+
+ val = FIELD_GET(R24_IP_XO_CLOAD, val);
+
+ if (val >= ARRAY_SIZE(ip_xo_cload))
+ return -EINVAL;
+
+ return ip_xo_cload[val];
+}
+
+static const unsigned short ip_bias_sel_xo[] = {
+ /* index is the register value */
+ 0, 14, 29, 44,
+ 59, 148, 295, 443,
+ 591, 884, 1177, 1468, 1758
+};
+
+static int cdce6214_pinconf_get_xo_bias(struct cdce6214 *priv, unsigned int pin)
+{
+ unsigned int val;
+
+ if (pin != SECREF)
+ return -ENOTSUPP;
+
+ regmap_read(priv->regmap, R24, &val);
+
+ val = FIELD_GET(R24_IP_BIAS_SEL_XO, val);
+
+ if (val >= ARRAY_SIZE(ip_bias_sel_xo))
+ return -EINVAL;
+
+ return ip_bias_sel_xo[val];
+}
+
+static int cdce6214_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
+ unsigned long *config)
+{
+ struct cdce6214 *priv = pinctrl_dev_get_drvdata(pctldev);
+ unsigned int param = pinconf_to_config_param(*config);
+ int arg = 0;
+
+ switch (param) {
+ case PIN_CONFIG_IOSTANDARD:
+ arg = cdce6214_pinconf_get_iostd(priv, pin);
+ break;
+ case PIN_CONFIG_CMOSN_MODE:
+ arg = cdce6214_pinconf_get_cmosn_mode(priv, pin);
+ break;
+ case PIN_CONFIG_CMOSP_MODE:
+ arg = cdce6214_pinconf_get_cmosp_mode(priv, pin);
+ break;
+ case PIN_CONFIG_XO_CLOAD:
+ arg = cdce6214_pinconf_get_xo_cload(priv, pin);
+ break;
+ case PIN_CONFIG_XO_BIAS:
+ arg = cdce6214_pinconf_get_xo_bias(priv, pin);
+ break;
+ default:
+ return -ENOTSUPP;
+ }
+
+ if (arg < 0)
+ return arg;
+
+ *config = pinconf_to_config_packed(param, arg);
+
+ return 0;
+}
+
+static int cdce6214_pinconf_set_iostd(struct cdce6214 *priv, unsigned int pin,
+ unsigned int param)
+{
+ struct regmap *reg = priv->regmap;
+
+ switch (pin) {
+ case OUT0:
+ if (param == CDCE6214_IOSTD_CMOS)
+ break;
+ goto err_illegal_fmt;
+ case OUT1:
+ switch (param) {
+ case CDCE6214_IOSTD_CMOS:
+ regmap_clear_bits(reg, R59, R59_CH1_LVDS_EN);
+ regmap_clear_bits(reg, R57, R57_CH1_LPHCSL_EN);
+ break;
+ case CDCE6214_IOSTD_LVDS:
+ regmap_clear_bits(reg, R57, R57_CH1_LPHCSL_EN);
+ regmap_set_bits(reg, R59, R59_CH1_LVDS_EN);
+ break;
+ case CDCE6214_IOSTD_LP_HCSL:
+ regmap_clear_bits(reg, R59, R59_CH1_LVDS_EN);
+ regmap_set_bits(reg, R57, R57_CH1_LPHCSL_EN);
+ break;
+ default:
+ goto err_illegal_fmt;
+ }
+ break;
+ case OUT2:
+ switch (param) {
+ case CDCE6214_IOSTD_LVDS:
+ regmap_set_bits(reg, R65, R65_CH2_LVDS_EN);
+ regmap_clear_bits(reg, R63, R63_CH2_LPHCSL_EN);
+ break;
+ case CDCE6214_IOSTD_LP_HCSL:
+ regmap_set_bits(reg, R63, R63_CH2_LPHCSL_EN);
+ regmap_clear_bits(reg, R65, R65_CH2_LVDS_EN);
+ break;
+ default:
+ goto err_illegal_fmt;
+ }
+ break;
+ case OUT3:
+ switch (param) {
+ case CDCE6214_IOSTD_LVDS:
+ regmap_set_bits(reg, R70, R70_CH3_LVDS_EN);
+ regmap_clear_bits(reg, R68, R68_CH3_LPHCSL_EN);
+ break;
+ case CDCE6214_IOSTD_LP_HCSL:
+ regmap_set_bits(reg, R70, R70_CH3_LVDS_EN);
+ regmap_clear_bits(reg, R68, R65_CH2_LVDS_EN);
+ break;
+ }
+ break;
+ case OUT4:
+ switch (param) {
+ case CDCE6214_IOSTD_CMOS:
+ regmap_clear_bits(reg, R75, R75_CH4_LVDS_EN);
+ regmap_clear_bits(reg, R73, R73_CH4_LPHCSL_EN);
+ break;
+ case CDCE6214_IOSTD_LVDS:
+ regmap_clear_bits(reg, R73, R73_CH4_LPHCSL_EN);
+ regmap_set_bits(reg, R75, R75_CH4_LVDS_EN);
+ break;
+ case CDCE6214_IOSTD_LP_HCSL:
+ regmap_clear_bits(reg, R75, R75_CH4_LVDS_EN);
+ regmap_set_bits(reg, R72, R73_CH4_LPHCSL_EN);
+ break;
+ default:
+ goto err_illegal_fmt;
+ }
+ break;
+ case PRIREF:
+ switch (param) {
+ case CDCE6214_IOSTD_CMOS:
+ regmap_clear_bits(reg, R24, R24_IP_PRIREF_BUF_SEL);
+ break;
+ case CDCE6214_IOSTD_DIFF:
+ regmap_set_bits(reg, R24, R24_IP_PRIREF_BUF_SEL);
+ break;
+ default:
+ goto err_illegal_fmt;
+ }
+ break;
+ case SECREF:
+ switch (param) {
+ case CDCE6214_IOSTD_CMOS:
+ regmap_update_bits(reg, R24, R24_IP_SECREF_BUF_SEL,
+ R24_IP_SECREF_BUF_SEL_LVCMOS);
+ break;
+ case CDCE6214_IOSTD_XTAL:
+ regmap_update_bits(reg, R24, R24_IP_SECREF_BUF_SEL,
+ R24_IP_SECREF_BUF_SEL_XTAL);
+ break;
+ case CDCE6214_IOSTD_DIFF:
+ regmap_update_bits(reg, R24, R24_IP_SECREF_BUF_SEL,
+ R24_IP_SECREF_BUF_SEL_DIFF);
+ break;
+ default:
+ goto err_illegal_fmt;
+ }
+
+ break;
+ }
+
+ return 0;
+
+err_illegal_fmt:
+
+ return -EINVAL;
+}
+
+static int cdce6214_pinconf_set_cmosn_mode(struct cdce6214 *priv, unsigned int pin,
+ unsigned int param)
+{
+ unsigned int reg, val;
+
+ switch (pin) {
+ case OUT1:
+ reg = R59;
+ break;
+ case OUT4:
+ reg = R75;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (param) {
+ case CDCE6214_CMOS_MODE_LOW:
+ val = R59_CH1_CMOSN_EN;
+ break;
+ case CDCE6214_CMOS_MODE_HIGH:
+ val = R59_CH1_CMOSN_POL | R59_CH1_CMOSN_EN;
+ break;
+ case CDCE6214_CMOS_MODE_DISABLED:
+ val = 0;
+ break;
+ }
+
+ /* Relevant fields are identical for register 59 and 75 */
+ regmap_update_bits(priv->regmap, reg, R59_CH1_CMOSN_POL | R59_CH1_CMOSN_EN, val);
+
+ return 0;
+}
+
+static int cdce6214_pinconf_set_cmosp_mode(struct cdce6214 *priv, unsigned int pin,
+ unsigned int param)
+{
+ unsigned int reg, val;
+
+ switch (pin) {
+ case OUT1:
+ reg = R59;
+ break;
+ case OUT4:
+ reg = R75;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (param) {
+ case CDCE6214_CMOS_MODE_LOW:
+ val = R59_CH1_CMOSP_EN;
+ break;
+ case CDCE6214_CMOS_MODE_HIGH:
+ val = R59_CH1_CMOSP_POL | R59_CH1_CMOSP_EN;
+ break;
+ case CDCE6214_CMOS_MODE_DISABLED:
+ val = 0;
+ break;
+ }
+
+ /* Relevant fields are identical for register 59 and 75 */
+ regmap_update_bits(priv->regmap, reg, R59_CH1_CMOSP_POL | R59_CH1_CMOSP_EN, val);
+
+ return 0;
+}
+
+static int cdce6214_pinconf_set_xo_cload(struct cdce6214 *priv, unsigned int pin,
+ unsigned int param)
+{
+ int i;
+
+ if (pin != SECREF)
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(ip_xo_cload); i++)
+ if (param <= ip_xo_cload[i])
+ break;
+
+ if (i >= ARRAY_SIZE(ip_xo_cload))
+ i = ARRAY_SIZE(ip_xo_cload) - 1;
+
+ regmap_update_bits(priv->regmap, R24, R24_IP_XO_CLOAD,
+ FIELD_PREP(R24_IP_XO_CLOAD, i));
+
+ return 0;
+}
+
+static int cdce6214_pinconf_set_xo_bias(struct cdce6214 *priv, unsigned int pin,
+ unsigned int param)
+{
+ int i;
+
+ if (pin != SECREF)
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(ip_bias_sel_xo); i++)
+ if (param <= ip_bias_sel_xo[i])
+ break;
+
+ if (i >= ARRAY_SIZE(ip_bias_sel_xo))
+ i = ARRAY_SIZE(ip_bias_sel_xo) - 1;
+
+ regmap_update_bits(priv->regmap, R24, R24_IP_BIAS_SEL_XO,
+ FIELD_PREP(R24_IP_BIAS_SEL_XO, i));
+
+ return 0;
+}
+
+static int cdce6214_pinconf_set_one(struct cdce6214 *priv,
+ unsigned int pin, unsigned long config)
+{
+ unsigned int param;
+ u32 param_val;
+ int ret;
+
+ param = pinconf_to_config_param(config);
+ param_val = pinconf_to_config_argument(config);
+
+ switch (param) {
+ case PIN_CONFIG_IOSTANDARD:
+ ret = cdce6214_pinconf_set_iostd(priv, pin, param_val);
+ break;
+ case PIN_CONFIG_CMOSN_MODE:
+ ret = cdce6214_pinconf_set_cmosn_mode(priv, pin, param_val);
+ break;
+ case PIN_CONFIG_CMOSP_MODE:
+ ret = cdce6214_pinconf_set_cmosp_mode(priv, pin, param_val);
+ break;
+ case PIN_CONFIG_XO_CLOAD:
+ ret = cdce6214_pinconf_set_xo_cload(priv, pin, param_val);
+ break;
+ case PIN_CONFIG_XO_BIAS:
+ ret = cdce6214_pinconf_set_xo_bias(priv, pin, param_val);
+ break;
+ default:
+ dev_err(priv->dev, "Property %u not supported\n", param);
+ ret = -ENOTSUPP;
+ }
+
+ return ret;
+}
+
+static int cdce6214_pinconf_set(struct pinctrl_dev *pctldev,
+ unsigned int pin, unsigned long *configs,
+ unsigned int num_configs)
+{
+ struct cdce6214 *priv = pinctrl_dev_get_drvdata(pctldev);
+ int ret, i;
+
+ for (i = 0; i < num_configs; i++) {
+ ret = cdce6214_pinconf_set_one(priv, pin, configs[i]);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int rtc_pinctrl_get_groups_count(struct pinctrl_dev *pctldev)
+{
+ return 0;
+}
+
+static const char *rtc_pinctrl_get_group_name(struct pinctrl_dev *pctldev,
+ unsigned int group)
+{
+ return NULL;
+}
+
+static const struct pinctrl_ops rtc_pinctrl_ops = {
+ .get_groups_count = rtc_pinctrl_get_groups_count,
+ .get_group_name = rtc_pinctrl_get_group_name,
+ .dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
+ .dt_free_map = pinconf_generic_dt_free_map,
+};
+
+static const struct pinconf_ops cdce6214_pinconf_ops = {
+ .is_generic = true,
+ .pin_config_get = cdce6214_pinconf_get,
+ .pin_config_set = cdce6214_pinconf_set,
+};
+
+static struct pinctrl_desc cdce6214_pdesc = {
+ .name = "cdce6214-pinctrl",
+ .pins = cdce6214_pinctrl_pins,
+ .npins = ARRAY_SIZE(cdce6214_pinctrl_pins),
+ .pctlops = &rtc_pinctrl_ops,
+ .owner = THIS_MODULE,
+ .confops = &cdce6214_pinconf_ops,
+ .num_custom_params = ARRAY_SIZE(cdce6214_dt_params),
+ .custom_params = cdce6214_dt_params,
+ .custom_conf_items = cdce6214_conf_items,
+};
+
+static int cdce6214_probe(struct i2c_client *client)
+{
+ struct device *dev = &client->dev;
+ struct cdce6214 *priv;
+ struct pinctrl_dev *pctl;
+ int ret;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->client = client;
+ priv->dev = dev;
+ i2c_set_clientdata(client, priv);
+ dev_set_drvdata(dev, priv);
+
+ priv->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
+ if (IS_ERR(priv->reset_gpio)) {
+ return dev_err_probe(dev, PTR_ERR(priv->reset_gpio),
+ "failed to get reset gpio\n");
+ }
+
+ priv->regmap = devm_regmap_init_i2c(client, &cdce6214_regmap_config);
+ if (IS_ERR(priv->regmap))
+ return dev_err_probe(dev, PTR_ERR(priv->regmap),
+ "failed to init regmap\n");
+
+ ret = cdce6214_configure(priv);
+ if (ret)
+ return ret;
+
+ ret = devm_pinctrl_register_and_init(dev, &cdce6214_pdesc, priv, &pctl);
+ if (ret)
+ return dev_err_probe(dev, ret, "pinctrl register failed");
+
+ ret = pinctrl_enable(pctl);
+ if (ret)
+ return dev_err_probe(dev, ret, "pinctrl enable failed");
+
+ ret = cdce6214_clk_register(priv);
+ if (ret)
+ return dev_err_probe(dev, ret,
+ "failed to register clocks\n");
+
+ return devm_of_clk_add_hw_provider(dev, cdce6214_of_clk_get, priv);
+}
+
+static const struct of_device_id cdce6214_ids[] = {
+ { .compatible = "ti,cdce6214" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, cdce6214_ids);
+
+static struct i2c_driver cdce6214_driver = {
+ .driver = {
+ .name = "cdce6214",
+ .of_match_table = cdce6214_ids,
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
+ },
+ .probe = cdce6214_probe,
+};
+module_i2c_driver(cdce6214_driver);
+
+MODULE_AUTHOR("Alvin Šipraga <alsi@bang-olufsen.dk>");
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_DESCRIPTION("TI CDCE6214 driver");
+MODULE_LICENSE("GPL");
--
2.47.3
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH v8 1/2] dt-bindings: clock: add TI CDCE6214 binding
2026-09-09 8:54 ` [PATCH v8 1/2] dt-bindings: clock: add TI CDCE6214 binding Sascha Hauer
@ 2026-09-09 9:00 ` sashiko-bot
0 siblings, 0 replies; 5+ messages in thread
From: sashiko-bot @ 2026-09-09 9:00 UTC (permalink / raw)
To: Sascha Hauer; +Cc: conor+dt, robh, linux-clk, devicetree
Thank you for your contribution! Sashiko AI review found 4 potential issue(s) to consider:
- [Medium] Conditional constraints in the 'allOf' block target the non-existent property 'io-standard' instead of 'ti,io-standard', bypassing validation.
- [Low] The description for 'ti,cmosp-mode' incorrectly refers to 'CMOSN output' and contains typos.
- [Low] The 'ti,cmosp-mode' and 'ti,cmosn-mode' properties lack a minimum constraint, incorrectly allowing the value 0.
- [Low] The 'clock-names' property incorrectly permits an array with duplicate clock names (e.g., ['secref', 'secref']).
--
commit 3a564f8b01873582c4ee765638671ebe3d3d19b4
Author: Sascha Hauer <s.hauer@pengutronix.de>
dt-bindings: clock: add TI CDCE6214 binding
Add device tree binding for the CDCE6214, an Ultra-Low Power Clock
Generator With One PLL, Four Differential Outputs, Two Inputs, and
Internal EEPROM.
> diff --git a/Documentation/devicetree/bindings/clock/ti,cdce6214.yaml b/Documentation/devicetree/bindings/clock/ti,cdce6214.yaml
> new file mode 100644
> index 0000000000000..4a9c9155894af
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/ti,cdce6214.yaml
[ ... ]
> + clock-names:
> + minItems: 1
> + items:
> + - enum: [ priref, secref ]
> + - const: secref
[Severity: Low]
Could this allow the clock-names array to have duplicate entries like
"secref", "secref"? Should the first item be restricted to just priref
to prevent defining the same physical clock reference twice?
[ ... ]
> + ti,cmosp-mode:
> + description: |
> + Driving mode for CMOSN output:
> + 1: Low Polarity
> + 2: High Polrity
> + 3: Disable
[Severity: Low]
There appear to be a couple of typos in this description. It refers to
CMOSN output instead of CMOSP, and Polrity instead of Polarity.
> + $ref: /schemas/types.yaml#/definitions/uint32
> + maximum: 3
[Severity: Low]
Since this references uint32 with a maximum of 3, does it inadvertently
allow 0 as a valid state?
According to the description and the driver header, 0 is not a valid
mode. Would it be better to use an enum of [1, 2, 3] or define a
minimum of 1?
> +
> + ti,cmosn-mode:
> + description: |
> + Driving mode for CMOSN output:
> + 1: Low Polarity
> + 2: High Polrity
> + 3: Disable
> + $ref: /schemas/types.yaml#/definitions/uint32
> + maximum: 3
[Severity: Low]
Similarly, does this property need a minimum constraint to prevent 0
from passing schema validation?
[ ... ]
> + allOf:
> + - if:
> + properties:
> + pins:
> + contains:
> + const: priref
> + then:
> + properties:
> + io-standard:
> + enum: [ 1, 5 ]
[Severity: Medium]
Do these constraints target the non-existent property io-standard instead
of ti,io-standard?
If so, an invalid ti,io-standard value in a device tree might erroneously
pass schema validation because the constraints aren't applied to it.
This pattern appears in the subsequent conditional blocks as well.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260909-clk-cdce6214-v8-0-4dfa355c1f65@pengutronix.de?part=1
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v8 2/2] clk: add TI CDCE6214 clock driver
2026-09-09 8:54 ` [PATCH v8 2/2] clk: add TI CDCE6214 clock driver Sascha Hauer
@ 2026-09-09 9:09 ` sashiko-bot
0 siblings, 0 replies; 5+ messages in thread
From: sashiko-bot @ 2026-09-09 9:09 UTC (permalink / raw)
To: Sascha Hauer; +Cc: conor+dt, devicetree, robh, linux-clk
Thank you for your contribution! Sashiko AI review found 12 potential issue(s) to consider:
- [High] Severe copy-paste errors exist in pin configuration for IO standards on OUT3 and OUT4, corrupting unrelated registers.
- [High] Rate request callbacks do not sanitize zero inputs, leading to division by zero panics.
- [High] Clock registration for OUT0 uses the wrong parent array size, leading to stack out-of-bounds reads.
- [High] Incorrect rate calculation prevents usage of the 2x clock multiplier and causes CCF state desynchronization for OUT0.
- [High] Mismatched registers are used for getting and setting the parent clock for OUT0.
- [High] The driver systematically ignores the return value of `regmap_read()`, resulting in the use of uninitialized stack memory when I2C transfers fail.
- [High] Clock math relies on 32-bit arithmetic (`unsigned long`), which will integer overflow on 32-bit architectures at standard high frequencies.
- [Medium] Contradictory and flawed handling of CMOS N/P polarity and enable bits between OUT1 and OUT4.
- [Medium] Raw divisor values are passed into FIELD_PREP for a 2-bit mask in PSA/PSB configuration.
- [Medium] Incorrect use of `do_div()` with an `unsigned long` divisor.
- [Medium] Unreasonably short timeout for I2C regmap polling in PLL lock.
- [Medium] Zero-initialized clk_parent_data element causes unintended fallback to DT index 0.
--
commit 3cfc7967fe6fb49dcdf0e635b82371b0f59bf24e
Author: Sascha Hauer <s.hauer@pengutronix.de>
clk: add TI CDCE6214 clock driver
The CDCE6214 is a Ultra-Low Power Clock Generator With One PLL, Four
Differential Outputs, Two Inputs, and Internal EEPROM. This patch adds
a common clk framework driver for this chip.
> diff --git a/drivers/clk/clk-cdce6214.c b/drivers/clk/clk-cdce6214.c
> new file mode 100644
> index 0000000000000..d012b79f37880
> --- /dev/null
> +++ b/drivers/clk/clk-cdce6214.c
> @@ -0,0 +1,1620 @@
[ ... ]
> +static int cdce6214_clk_out0_determine_rate(struct clk_hw *hw,
> + struct clk_rate_request *req)
> +{
> + unsigned int div;
> +
> + if (req->rate >= req->best_parent_rate)
> + req->rate = req->best_parent_rate * 2;
[Severity: High]
Does this multiplication by 2 overflow a 32-bit unsigned long when the
VCO operates near its maximum limit of 2.625 GHz?
Also, does this branch lack an early return? If the consumer requests
the 2x multiplier rate, it appears to fall through and recalculate div,
inadvertently resetting the rate back to the 1x target.
[ ... ]
> +static u8 cdce6214_clk_out0_get_parent(struct clk_hw *hw)
> +{
> + struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
> + struct cdce6214 *priv = clock->priv;
> + unsigned int val;
> +
> + regmap_read(priv->regmap, R2, &val);
> +
> + if (FIELD_GET(R2_REFSEL_SW, val) == 2)
> + return 1;
[Severity: High]
Is R2 the correct register here? cdce6214_clk_out0_set_parent writes
the mux state to R25. Operating on different registers prevents the
clock framework from accurately tracking the hardware parent state.
[ ... ]
> +static unsigned int cdce6214_get_out_div(unsigned long rate, unsigned long parent_rate)
> +{
> + unsigned int div;
> +
> + div = divider_get_val(rate, parent_rate, NULL, 14, CLK_DIVIDER_ONE_BASED);
[Severity: High]
Can rate be zero here? If a consumer requests a rate of 0 Hz,
divider_get_val() triggers a divide-by-zero panic internally when it
calls DIV_ROUND_UP_ULL(parent_rate, 0).
[ ... ]
> +static u8 cdce6214_clk_out_get_parent(struct clk_hw *hw)
> +{
> + struct cdce6214_clock *clock = hw_to_cdce6214_clk(hw);
> + struct cdce6214 *priv = clock->priv;
> + unsigned int val, idx;
> +
> + switch (clock->index) {
> + case CDCE6214_CLK_OUT1:
> + regmap_read(priv->regmap, R56, &val);
> + idx = FIELD_GET(R56_CH1_MUX, val);
[Severity: High]
If regmap_read() fails due to an I2C error, does val remain
uninitialized? This appears to feed stack garbage into FIELD_GET(),
eventually returning a non-deterministic hardware index to the clock core.
[ ... ]
> +static unsigned long cdce6214_clk_pll_recalc_rate(struct clk_hw *hw,
> + unsigned long parent_rate)
> +{
[ ... ]
> + return parent_rate * ndiv + DIV_ROUND_CLOSEST(parent_rate * num, den);
[Severity: High]
Could parent_rate * num overflow on 32-bit architectures? A standard
parent rate multiplied by a large fractional numerator might easily
exceed the 32-bit unsigned long maximum limit.
[ ... ]
> +static int pll_calc_values(unsigned long parent_rate, unsigned long out,
> + unsigned long *ndiv, unsigned long *num, unsigned long *den)
> +{
> + u64 a;
> +
> + if (out < CDCE6214_VCO_MIN || out > CDCE6214_VCO_MAX)
> + return -EINVAL;
> +
> + *den = 10000000;
> + *ndiv = out / parent_rate;
[Severity: High]
Can parent_rate be zero here if the upstream reference clock is disabled
or returns 0? This would result in a direct division by zero panic.
> + a = out % parent_rate;
> + a *= *den;
> + do_div(a, parent_rate);
[Severity: Medium]
Is it safe to pass parent_rate (an unsigned long) to do_div()?
do_div() expects a 32-bit divisor, and passing a 64-bit value on
64-bit architectures causes silent truncation and type checking warnings.
[ ... ]
> +static int cdce6214_wait_pll_lock(struct cdce6214 *priv)
> +{
> + unsigned int val;
> + int ret;
> +
> + ret = regmap_read_poll_timeout(priv->regmap, R7, val,
> + val & R7_LOCK_DET, 0, 1000);
[Severity: Medium]
Is a 1000us timeout sufficient for I2C regmap polling? Since standard
100kHz I2C transactions take around 300us each, this timeout might only allow
2 or 3 polling attempts and could result in spurious failures.
[ ... ]
> +static int cdce6214_clk_register(struct cdce6214 *priv)
> +{
[ ... ]
> + init[CDCE6214_CLK_OUT0].ops = &cdce6214_clk_out0_ops;
> + init[CDCE6214_CLK_OUT0].num_parents = ARRAY_SIZE(pdata_out);
> + init[CDCE6214_CLK_OUT0].parent_data = pdata_out0;
[Severity: High]
Does this incorrectly use ARRAY_SIZE(pdata_out) (size 4) instead of
ARRAY_SIZE(pdata_out0) (size 2)? This instructs the clock framework to
read past the bounds of the 2-element stack-allocated array.
> + init[CDCE6214_CLK_OUT0].flags = CLK_SET_RATE_NO_REPARENT;
> +
> + pdata_out[0].hw = &priv->clk[CDCE6214_CLK_PSA].hw;
> + pdata_out[1].hw = &priv->clk[CDCE6214_CLK_PSB].hw;
> + pdata_out[3].hw = &priv->clk[CDCE6214_CLK_OUT0].hw;
[Severity: Medium]
Element pdata_out[2] is left uninitialized (all zeros). If the hardware
mux returns an index of 2, the zero-initialized entry instructs the
framework to fall back to DT index 0, which could create a bogus clock topology.
[ ... ]
> +static int cdce6214_clk_psx_set_rate(struct clk_hw *hw, unsigned long rate,
> + unsigned long parent_rate)
> +{
[ ... ]
> + switch (clock->index) {
> + case CDCE6214_CLK_PSA:
> + regmap_update_bits(priv->regmap, R47, R47_PLL_PSA,
> + FIELD_PREP(R47_PLL_PSA, div));
[Severity: Medium]
Does div (which can be 4, 5, or 6) exceed the bounds of the 2-bit
R47_PLL_PSA mask? Passing values larger than the mask field to
FIELD_PREP() is an API violation, even if bitwise truncation happens
to map to the correct register indices.
[ ... ]
> +static int cdce6214_pinconf_set_iostd(struct cdce6214 *priv, unsigned int pin,
> + unsigned int param)
> +{
[ ... ]
> + case OUT3:
> + switch (param) {
> + case CDCE6214_IOSTD_LVDS:
> + regmap_set_bits(reg, R70, R70_CH3_LVDS_EN);
> + regmap_clear_bits(reg, R68, R68_CH3_LPHCSL_EN);
> + break;
> + case CDCE6214_IOSTD_LP_HCSL:
> + regmap_set_bits(reg, R70, R70_CH3_LVDS_EN);
> + regmap_clear_bits(reg, R68, R65_CH2_LVDS_EN);
> + break;
[Severity: High]
Should setting CDCE6214_IOSTD_LP_HCSL on OUT3 write to
R65_CH2_LVDS_EN? This appears to be a copy-paste error that writes
the wrong LVDS bits to an unrelated hardware register.
> + }
> + break;
> + case OUT4:
> + switch (param) {
> + case CDCE6214_IOSTD_CMOS:
> + regmap_clear_bits(reg, R75, R75_CH4_LVDS_EN);
> + regmap_clear_bits(reg, R73, R73_CH4_LPHCSL_EN);
> + break;
> + case CDCE6214_IOSTD_LVDS:
> + regmap_clear_bits(reg, R73, R73_CH4_LPHCSL_EN);
> + regmap_set_bits(reg, R75, R75_CH4_LVDS_EN);
> + break;
> + case CDCE6214_IOSTD_LP_HCSL:
> + regmap_clear_bits(reg, R75, R75_CH4_LVDS_EN);
> + regmap_set_bits(reg, R72, R73_CH4_LPHCSL_EN);
> + break;
[Severity: High]
Does setting CDCE6214_IOSTD_LP_HCSL on OUT4 inadvertently write R73
flags into R72? R72 controls the CH4 divider and muxing, which
corrupts unrelated settings.
[ ... ]
> +static int cdce6214_pinconf_set_cmosn_mode(struct cdce6214 *priv, unsigned int pin,
> + unsigned int param)
> +{
[ ... ]
> + /* Relevant fields are identical for register 59 and 75 */
> + regmap_update_bits(priv->regmap, reg, R59_CH1_CMOSN_POL | R59_CH1_CMOSN_EN, val);
[Severity: Medium]
Are these fields truly identical? It appears that register 75 swaps the
positions of the N and P bits compared to register 59. This might cause the
wrong output leg to be enabled when configuring OUT4.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260909-clk-cdce6214-v8-0-4dfa355c1f65@pengutronix.de?part=2
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2026-09-09 9:09 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
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2026-09-09 8:54 [PATCH v8 0/2] clk: add support for TI CDCE6214 Sascha Hauer
2026-09-09 8:54 ` [PATCH v8 1/2] dt-bindings: clock: add TI CDCE6214 binding Sascha Hauer
2026-09-09 9:00 ` sashiko-bot
2026-09-09 8:54 ` [PATCH v8 2/2] clk: add TI CDCE6214 clock driver Sascha Hauer
2026-09-09 9:09 ` sashiko-bot
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