diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0238-BCM270X_DT-Add-dpi24-overlay.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0238-BCM270X_DT-Add-dpi24-overlay.patch | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0238-BCM270X_DT-Add-dpi24-overlay.patch b/target/linux/brcm2708/patches-4.4/0238-BCM270X_DT-Add-dpi24-overlay.patch new file mode 100644 index 0000000000..7b5fc16fcc --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0238-BCM270X_DT-Add-dpi24-overlay.patch @@ -0,0 +1,74 @@ +From 3533e797aaf506f1e81a3b53bf04ce9592005756 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Tue, 5 Apr 2016 13:01:54 +0100 +Subject: [PATCH 238/304] BCM270X_DT: Add dpi24 overlay + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + arch/arm/boot/dts/overlays/Makefile | 1 + + arch/arm/boot/dts/overlays/README | 8 +++++++ + arch/arm/boot/dts/overlays/dpi24-overlay.dts | 31 ++++++++++++++++++++++++++++ + 3 files changed, 40 insertions(+) + create mode 100644 arch/arm/boot/dts/overlays/dpi24-overlay.dts + +--- a/arch/arm/boot/dts/overlays/Makefile ++++ b/arch/arm/boot/dts/overlays/Makefile +@@ -15,6 +15,7 @@ endif + dtbo-$(RPI_DT_OVERLAYS) += ads7846.dtbo + dtbo-$(RPI_DT_OVERLAYS) += at86rf233.dtbo + dtbo-$(RPI_DT_OVERLAYS) += bmp085_i2c-sensor.dtbo ++dtbo-$(RPI_DT_OVERLAYS) += dpi24.dtbo + dtbo-$(RPI_DT_OVERLAYS) += dwc2.dtbo + dtbo-$(RPI_DT_OVERLAYS) += dwc-otg.dtbo + dtbo-$(RPI_DT_OVERLAYS) += dht11.dtbo +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -213,6 +213,14 @@ Params: gpiopin GPIO con + (default 4) + + ++Name: dpi24 ++Info: Overlay for a generic 24-bit DPI display ++ This uses GPIOs 0-27 (so no I2C, uart etc.), and activates the output ++ 2-3 seconds after the kernel has started. ++Load: dtoverlay=dpi24 ++Params: <None> ++ ++ + Name: dwc-otg + Info: Selects the dwc_otg USB controller driver which has fiq support. This + is the default on all except the Pi Zero which defaults to dwc2. +--- /dev/null ++++ b/arch/arm/boot/dts/overlays/dpi24-overlay.dts +@@ -0,0 +1,31 @@ ++/dts-v1/; ++/plugin/; ++ ++/{ ++ compatible = "brcm,bcm2708"; ++ ++ // There is no DPI driver module, but we need a platform device ++ // node (that doesn't already use pinctrl) to hang the pinctrl ++ // reference on - leds will do ++ ++ fragment@0 { ++ target = <&leds>; ++ __overlay__ { ++ pinctrl-names = "default"; ++ pinctrl-0 = <&dpi24_pins>; ++ }; ++ }; ++ ++ fragment@1 { ++ target = <&gpio>; ++ __overlay__ { ++ dpi24_pins: dpi24_pins { ++ brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11 ++ 12 13 14 15 16 17 18 19 20 ++ 21 22 23 24 25 26 27>; ++ brcm,function = <6>; /* alt2 */ ++ brcm,pull = <0>; /* no pull */ ++ }; ++ }; ++ }; ++}; |