From 9249fb1ac6b8bfcc0056fe2a871d4965b774c667 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Mon, 14 Sep 2020 15:48:16 +0100 Subject: [PATCH] overlays: Add parameters to adafruit18, sainsmart18 Also fix polarity of the reset GPIO. Signed-off-by: Phil Elwell --- arch/arm/boot/dts/overlays/README | 13 +++++++++++++ arch/arm/boot/dts/overlays/adafruit18-overlay.dts | 11 +++++++++-- arch/arm/boot/dts/overlays/sainsmart18-overlay.dts | 10 ++++++++-- 3 files changed, 30 insertions(+), 4 deletions(-) --- a/arch/arm/boot/dts/overlays/README +++ b/arch/arm/boot/dts/overlays/README @@ -267,6 +267,13 @@ Info: Overlay for the SPI-connected Ad Load: dtoverlay=adafruit18,= Params: green Use the adafruit18_green variant. rotate Display rotation {0,90,180,270} + speed SPI bus speed in Hz (default 4000000) + fps Display frame rate in Hz + bgr Enable BGR mode (default on) + debug Debug output level {0-7} + dc_pin GPIO pin for D/C (default 24) + reset_pin GPIO pin for RESET (default 25) + led_pin GPIO used to control backlight (default 18) Name: adau1977-adc @@ -2271,6 +2278,12 @@ Info: Overlay for the SPI-connected Sa ST7735R chip). Load: dtoverlay=sainsmart18,= Params: rotate Display rotation {0,90,180,270} + speed SPI bus speed in Hz (default 4000000) + fps Display frame rate in Hz + bgr Enable BGR mode (default on) + debug Debug output level {0-7} + dc_pin GPIO pin for D/C (default 24) + reset_pin GPIO pin for RESET (default 25) Name: sc16is750-i2c --- a/arch/arm/boot/dts/overlays/adafruit18-overlay.dts +++ b/arch/arm/boot/dts/overlays/adafruit18-overlay.dts @@ -33,7 +33,7 @@ fps = <50>; height = <160>; width = <128>; - reset-gpios = <&gpio 25 0>; + reset-gpios = <&gpio 25 1>; dc-gpios = <&gpio 24 0>; led-gpios = <&gpio 18 0>; bgr; @@ -44,6 +44,13 @@ __overrides__ { green = <&af18>, "compatible=fbtft,adafruit18_green"; - rotate = <&af18>, "rotate:0"; + speed = <&af18>,"spi-max-frequency:0"; + rotate = <&af18>,"rotate:0"; + fps = <&af18>,"fps:0"; + bgr = <&af18>,"bgr?"; + debug = <&af18>,"debug:0"; + dc_pin = <&af18>,"dc-gpios:4"; + reset_pin = <&af18>,"reset-gpios:4"; + led_pin = <&af18>,"led-gpios:4"; }; }; --- a/arch/arm/boot/dts/overlays/sainsmart18-overlay.dts +++ b/arch/arm/boot/dts/overlays/sainsmart18-overlay.dts @@ -33,7 +33,7 @@ fps = <50>; height = <160>; width = <128>; - reset-gpios = <&gpio 25 0>; + reset-gpios = <&gpio 25 1>; dc-gpios = <&gpio 24 0>; bgr; debug = <0>; @@ -42,6 +42,12 @@ }; __overrides__ { - rotate = <&ss18>, "rotate:0"; + speed = <&ss18>,"spi-max-frequency:0"; + rotate = <&ss18>,"rotate:0"; + fps = <&ss18>,"fps:0"; + bgr = <&ss18>,"bgr?"; + debug = <&ss18>,"debug:0"; + dc_pin = <&ss18>,"dc-gpios:4"; + reset_pin = <&ss18>,"reset-gpios:4"; }; };