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- From 5e54398e1b61335883dff1be46a6c8b3ca973926 Mon Sep 17 00:00:00 2001
- From: Dave Stevenson <[email protected]>
- Date: Wed, 30 Aug 2023 18:03:37 +0100
- Subject: [PATCH] dtoverlays: Add drm option to piscreen overlay
- Adds the option of selecting the DRM/KMS TinyDRM driver for
- this panel, rather than the deprecated FBTFT one.
- Signed-off-by: Dave Stevenson <[email protected]>
- ---
- arch/arm/boot/dts/overlays/README | 3 +++
- arch/arm/boot/dts/overlays/piscreen-overlay.dts | 10 +++++++---
- 2 files changed, 10 insertions(+), 3 deletions(-)
- --- a/arch/arm/boot/dts/overlays/README
- +++ b/arch/arm/boot/dts/overlays/README
- @@ -3245,6 +3245,9 @@ Params: speed Display
-
- xohms Touchpanel sensitivity (X-plate resistance)
-
- + drm Select the DRM/KMS driver instead of the FBTFT
- + one
- +
-
- Name: piscreen2r
- Info: PiScreen 2 with resistive TP display by OzzMaker.com
- --- a/arch/arm/boot/dts/overlays/piscreen-overlay.dts
- +++ b/arch/arm/boot/dts/overlays/piscreen-overlay.dts
- @@ -6,6 +6,8 @@
- /dts-v1/;
- /plugin/;
-
- +#include <dt-bindings/gpio/gpio.h>
- +
- / {
- compatible = "brcm,bcm2835";
-
- @@ -59,9 +61,9 @@
- fps = <30>;
- buswidth = <8>;
- regwidth = <16>;
- - reset-gpios = <&gpio 25 1>;
- - dc-gpios = <&gpio 24 0>;
- - led-gpios = <&gpio 22 0>;
- + reset-gpios = <&gpio 25 GPIO_ACTIVE_LOW>;
- + dc-gpios = <&gpio 24 GPIO_ACTIVE_HIGH>;
- + led-gpios = <&gpio 22 GPIO_ACTIVE_HIGH>;
- debug = <0>;
-
- init = <0x10000b0 0x00
- @@ -98,5 +100,7 @@
- fps = <&piscreen>,"fps:0";
- debug = <&piscreen>,"debug:0";
- xohms = <&piscreen_ts>,"ti,x-plate-ohms;0";
- + drm = <&piscreen>,"compatible=waveshare,rpi-lcd-35",
- + <&piscreen>,"reset-gpios:8=",<GPIO_ACTIVE_HIGH>;
- };
- };
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