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dt-bindings: media: Deprecate clock-frequency property for camera sensors

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Usage of the clock-frequency property for camera sensors is discouraged
in favour of using assigned-clock-rates (and assigned-clock-parents
where needed). Mark the property as deprecated.

Update the examples accordingly. In DT examples where the sensor input
clock appears to come from a programmable clock generator, replace
clock-frequency by the assigned-clocks and assigned-clock-rates
properties. Otherwise, just drop clock-frequency.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Laurent Pinchart
2025-08-13 12:49:23 +03:00
committed by Mauro Carvalho Chehab
parent fa9e6df636
commit aa1826696a
11 changed files with 38 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml
View File

@@ -292,7 +292,8 @@ examples:
clocks = <&clock_camcc CAM_CC_MCLK0_CLK>;
clock-names = "xvclk";
clock-frequency = <19200000>;
assigned-clocks = <&clock_camcc CAM_CC_MCLK0_CLK>;
assigned-clock-rates = <19200000>;
dovdd-supply = <&vreg_lvs1a_1p8>;
avdd-supply = <&cam0_avdd_2v8>;
@@ -324,7 +325,8 @@ examples:
clocks = <&clock_camcc CAM_CC_MCLK3_CLK>;
clock-names = "xclk";
clock-frequency = <24000000>;
assigned-clocks = <&clock_camcc CAM_CC_MCLK3_CLK>;
assigned-clock-rates = <24000000>;
vdddo-supply = <&vreg_lvs1a_1p8>;
vdda-supply = <&cam3_avdd_2v8>;

7
Documentation/devicetree/bindings/media/i2c/mipi-ccs.yaml
View File

@@ -55,6 +55,7 @@ properties:
clock-frequency:
description: Frequency of the external clock to the sensor in Hz.
deprecated: true
reset-gpios:
description: Reset GPIO. Also commonly called XSHUTDOWN in hardware
@@ -93,7 +94,6 @@ properties:
required:
- compatible
- reg
- clock-frequency
- clocks
additionalProperties: false
@@ -114,8 +114,11 @@ examples:
reg = <0x10>;
reset-gpios = <&gpio3 20 GPIO_ACTIVE_LOW>;
vana-supply = <&vaux3>;
clocks = <&omap3_isp 0>;
clock-frequency = <9600000>;
assigned-clocks = <&omap3_isp 0>;
assigned-clock-rates = <9600000>;
port {
ccs_ep: endpoint {
data-lanes = <1 2>;

3
Documentation/devicetree/bindings/media/i2c/ovti,ov02a10.yaml
View File

@@ -39,6 +39,7 @@ properties:
clock-frequency:
description:
Frequency of the eclk clock in Hz.
deprecated: true
dovdd-supply:
description:
@@ -100,7 +101,6 @@ required:
- reg
- clocks
- clock-names
- clock-frequency
- dovdd-supply
- avdd-supply
- dvdd-supply
@@ -127,7 +127,6 @@ examples:
clocks = <&ov02a10_clk>;
clock-names = "eclk";
clock-frequency = <24000000>;
rotation = <180>;

6
Documentation/devicetree/bindings/media/i2c/ovti,ov5645.yaml
View File

@@ -21,6 +21,7 @@ properties:
clock-frequency:
description: Frequency of the xclk clock in Hz.
deprecated: true
vdda-supply:
description: Analog voltage supply, 2.8 volts
@@ -83,8 +84,11 @@ examples:
camera@3c {
compatible = "ovti,ov5645";
reg = <0x3c>;
clocks = <&clks 1>;
clock-frequency = <24000000>;
assigned-clocks = <&clks 1>;
assigned-clock-rates = <24000000>;
vdddo-supply = <&ov5645_vdddo_1v8>;
vdda-supply = <&ov5645_vdda_2v8>;
vddd-supply = <&ov5645_vddd_1v5>;

6
Documentation/devicetree/bindings/media/i2c/ovti,ov7251.yaml
View File

@@ -29,6 +29,7 @@ properties:
clock-frequency:
description: Frequency of the xclk clock in Hz.
deprecated: true
vdda-supply:
description: Analog voltage supply, 2.8 volts
@@ -89,8 +90,11 @@ examples:
camera@3c {
compatible = "ovti,ov7251";
reg = <0x3c>;
clocks = <&clks 1>;
clock-frequency = <24000000>;
assigned-clocks = <&clks 1>;
assigned-clock-rates = <24000000>;
vdddo-supply = <&ov7251_vdddo_1v8>;
vdda-supply = <&ov7251_vdda_2v8>;
vddd-supply = <&ov7251_vddd_1v5>;

3
Documentation/devicetree/bindings/media/i2c/ovti,ov8856.yaml
View File

@@ -37,6 +37,7 @@ properties:
clock-frequency:
description:
Frequency of the xvclk clock in Hertz.
deprecated: true
dovdd-supply:
description:
@@ -87,7 +88,6 @@ required:
- reg
- clocks
- clock-names
- clock-frequency
- dovdd-supply
- avdd-supply
- dvdd-supply
@@ -114,7 +114,6 @@ examples:
clocks = <&cam_osc>;
clock-names = "xvclk";
clock-frequency = <19200000>;
avdd-supply = <&mt6358_vcama2_reg>;
dvdd-supply = <&mt6358_vcamd_reg>;

6
Documentation/devicetree/bindings/media/i2c/samsung,s5k5baf.yaml
View File

@@ -26,6 +26,7 @@ properties:
clock-frequency:
default: 24000000
description: mclk clock frequency
deprecated: true
rstn-gpios:
maxItems: 1
@@ -82,9 +83,12 @@ examples:
sensor@2d {
compatible = "samsung,s5k5baf";
reg = <0x2d>;
clocks = <&camera 0>;
assigned-clocks = <&camera 0>;
assigned-clock-rates = <24000000>;
clock-names = "mclk";
clock-frequency = <24000000>;
rstn-gpios = <&gpl2 1 GPIO_ACTIVE_LOW>;
stbyn-gpios = <&gpl2 0 GPIO_ACTIVE_LOW>;
vdda-supply = <&cam_io_en_reg>;

6
Documentation/devicetree/bindings/media/i2c/samsung,s5k6a3.yaml
View File

@@ -30,6 +30,7 @@ properties:
clock-frequency:
default: 24000000
description: extclk clock frequency
deprecated: true
gpios:
maxItems: 1
@@ -80,8 +81,11 @@ examples:
sensor@10 {
compatible = "samsung,s5k6a3";
reg = <0x10>;
clock-frequency = <24000000>;
clocks = <&camera 1>;
assigned-clocks = <&camera 1>;
assigned-clock-rates = <24000000>;
clock-names = "extclk";
gpios = <&gpm1 6 GPIO_ACTIVE_LOW>;
afvdd-supply = <&ldo19_reg>;

5
Documentation/devicetree/bindings/media/i2c/sony,imx290.yaml
View File

@@ -51,6 +51,7 @@ properties:
clock-frequency:
description: Frequency of the xclk clock in Hz
deprecated: true
vdda-supply:
description: Analog power supply (2.9V)
@@ -100,7 +101,6 @@ required:
- reg
- clocks
- clock-names
- clock-frequency
- vdda-supply
- vddd-supply
- vdddo-supply
@@ -125,7 +125,8 @@ examples:
clocks = <&gcc 90>;
clock-names = "xclk";
clock-frequency = <37125000>;
assigned-clocks = <&clks 1>;
assigned-clock-rates = <37125000>;
vdddo-supply = <&camera_vdddo_1v8>;
vdda-supply = <&camera_vdda_2v8>;

3
Documentation/devicetree/bindings/media/samsung,exynos4212-fimc-is.yaml
View File

@@ -209,9 +209,10 @@ examples:
svdda-supply = <&cam_io_reg>;
svddio-supply = <&ldo19_reg>;
afvdd-supply = <&ldo19_reg>;
clock-frequency = <24000000>;
clocks = <&camera 1>;
clock-names = "extclk";
assigned-clocks = <&camera 1>;
assigned-clock-rates = <24000000>;
gpios = <&gpm1 6 GPIO_ACTIVE_LOW>;
port {

3
Documentation/devicetree/bindings/media/samsung,fimc.yaml
View File

@@ -259,10 +259,11 @@ examples:
svdda-supply = <&cam_io_reg>;
svddio-supply = <&ldo19_reg>;
afvdd-supply = <&ldo19_reg>;
clock-frequency = <24000000>;
/* CAM_B_CLKOUT */
clocks = <&camera 1>;
clock-names = "extclk";
assigned-clocks = <&camera 1>;
assigned-clock-rates = <24000000>;
gpios = <&gpm1 6 GPIO_ACTIVE_LOW>;
port {