1 From eb5818121aa45fb1f379e4990f8040ef4e979fa0 Mon Sep 17 00:00:00 2001
2 From: Phil Elwell <phil@raspberrypi.org>
3 Date: Tue, 5 Apr 2016 13:01:54 +0100
4 Subject: [PATCH 238/381] BCM270X_DT: Add dpi24 overlay
6 Signed-off-by: Phil Elwell <phil@raspberrypi.org>
8 arch/arm/boot/dts/overlays/Makefile | 1 +
9 arch/arm/boot/dts/overlays/README | 8 +++++++
10 arch/arm/boot/dts/overlays/dpi24-overlay.dts | 31 ++++++++++++++++++++++++++++
11 3 files changed, 40 insertions(+)
12 create mode 100644 arch/arm/boot/dts/overlays/dpi24-overlay.dts
14 --- a/arch/arm/boot/dts/overlays/Makefile
15 +++ b/arch/arm/boot/dts/overlays/Makefile
16 @@ -15,6 +15,7 @@ endif
17 dtbo-$(RPI_DT_OVERLAYS) += ads7846.dtbo
18 dtbo-$(RPI_DT_OVERLAYS) += at86rf233.dtbo
19 dtbo-$(RPI_DT_OVERLAYS) += bmp085_i2c-sensor.dtbo
20 +dtbo-$(RPI_DT_OVERLAYS) += dpi24.dtbo
21 dtbo-$(RPI_DT_OVERLAYS) += dwc2.dtbo
22 dtbo-$(RPI_DT_OVERLAYS) += dwc-otg.dtbo
23 dtbo-$(RPI_DT_OVERLAYS) += dht11.dtbo
24 --- a/arch/arm/boot/dts/overlays/README
25 +++ b/arch/arm/boot/dts/overlays/README
26 @@ -213,6 +213,14 @@ Params: gpiopin GPIO con
31 +Info: Overlay for a generic 24-bit DPI display
32 + This uses GPIOs 0-27 (so no I2C, uart etc.), and activates the output
33 + 2-3 seconds after the kernel has started.
34 +Load: dtoverlay=dpi24
39 Info: Selects the dwc_otg USB controller driver which has fiq support. This
40 is the default on all except the Pi Zero which defaults to dwc2.
42 +++ b/arch/arm/boot/dts/overlays/dpi24-overlay.dts
48 + compatible = "brcm,bcm2708";
50 + // There is no DPI driver module, but we need a platform device
51 + // node (that doesn't already use pinctrl) to hang the pinctrl
52 + // reference on - leds will do
57 + pinctrl-names = "default";
58 + pinctrl-0 = <&dpi24_pins>;
65 + dpi24_pins: dpi24_pins {
66 + brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11
67 + 12 13 14 15 16 17 18 19 20
68 + 21 22 23 24 25 26 27>;
69 + brcm,function = <6>; /* alt2 */
70 + brcm,pull = <0>; /* no pull */