diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0280-dtoverlays-Correct-DT-handling-camera-GPIOs.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0280-dtoverlays-Correct-DT-handling-camera-GPIOs.patch | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0280-dtoverlays-Correct-DT-handling-camera-GPIOs.patch b/target/linux/brcm2708/patches-4.19/950-0280-dtoverlays-Correct-DT-handling-camera-GPIOs.patch new file mode 100644 index 0000000000..9d6471052d --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0280-dtoverlays-Correct-DT-handling-camera-GPIOs.patch @@ -0,0 +1,85 @@ +From 5c0dfdba54fdaeb813d8535283aa8f75080e1055 Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <dave.stevenson@raspberrypi.org> +Date: Tue, 18 Sep 2018 10:47:38 +0100 +Subject: [PATCH] dtoverlays: Correct DT handling camera GPIOs + +The firmware has support for updating overrides with the correct +GPIO settings for the camera GPIOs, but the wrong device tree +setup ended up being merged. +Correct the DT configuration so that the firmware does set it +up correctly. + +Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> +--- + arch/arm/boot/dts/bcm270x.dtsi | 7 +++++++ + arch/arm/boot/dts/overlays/README | 10 +--------- + arch/arm/boot/dts/overlays/ov5647-overlay.dts | 14 +++++++++++--- + 3 files changed, 19 insertions(+), 12 deletions(-) + +--- a/arch/arm/boot/dts/bcm270x.dtsi ++++ b/arch/arm/boot/dts/bcm270x.dtsi +@@ -152,6 +152,13 @@ + regulator-max-microvolt = <3300000>; + regulator-always-on; + }; ++ ++ __overrides__ { ++ cam0-pwdn-ctrl; ++ cam0-pwdn; ++ cam0-led-ctrl; ++ cam0-led; ++ }; + }; + + &vc4 { +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -1366,15 +1366,7 @@ Info: Omnivision OV5647 camera module. + Uses Unicam 1, which is the standard camera connector on most Pi + variants. + Load: dtoverlay=ov5647,<param>=<val> +-Params: cam0-pwdn GPIO used to control the sensor powerdown line. +- +- cam0-led GPIO used to control the sensor led +- Both these fields should be automatically filled +- in by the firmware to reflect the default GPIO +- configuration of the particular Pi variant in +- use. +- +- i2c_pins_0_1 Use pins 0&1 for the I2C instead of 44&45. ++Params: i2c_pins_0_1 Use pins 0&1 for the I2C instead of 44&45. + Useful on Compute Modules. + + i2c_pins_28_29 Use pins 28&29 for the I2C instead of 44&45. +--- a/arch/arm/boot/dts/overlays/ov5647-overlay.dts ++++ b/arch/arm/boot/dts/overlays/ov5647-overlay.dts +@@ -14,7 +14,7 @@ + status = "okay"; + + ov5647: ov5647@36 { +- compatible = "ov5647"; ++ compatible = "ovti,ov5647"; + reg = <0x36>; + status = "okay"; + +@@ -82,10 +82,18 @@ + }; + }; + ++ fragment@6 { ++ target-path="/__overrides__"; ++ __overlay__ { ++ cam0-pwdn-ctrl = <&ov5647>,"pwdn-gpios:0"; ++ cam0-pwdn = <&ov5647>,"pwdn-gpios:4"; ++ cam0-led-ctrl = <&ov5647>,"pwdn-gpios:12"; ++ cam0-led = <&ov5647>,"pwdn-gpios:16"; ++ }; ++ }; ++ + __overrides__ { + i2c_pins_0_1 = <0>,"-2-3+4"; + i2c_pins_28_29 = <0>,"+2-3-4"; +- cam0-pwdn = <&ov5647>,"pwdn-gpios:4"; +- cam0-led = <&ov5647>,"pwdn-gpios:16"; + }; + }; |