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62b7f5931c
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
95 lines
3.3 KiB
Diff
95 lines
3.3 KiB
Diff
From 9249fb1ac6b8bfcc0056fe2a871d4965b774c667 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Mon, 14 Sep 2020 15:48:16 +0100
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Subject: [PATCH] overlays: Add parameters to adafruit18, sainsmart18
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Also fix polarity of the reset GPIO.
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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arch/arm/boot/dts/overlays/README | 13 +++++++++++++
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arch/arm/boot/dts/overlays/adafruit18-overlay.dts | 11 +++++++++--
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arch/arm/boot/dts/overlays/sainsmart18-overlay.dts | 10 ++++++++--
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3 files changed, 30 insertions(+), 4 deletions(-)
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -267,6 +267,13 @@ Info: Overlay for the SPI-connected Ad
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Load: dtoverlay=adafruit18,<param>=<val>
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Params: green Use the adafruit18_green variant.
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rotate Display rotation {0,90,180,270}
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+ speed SPI bus speed in Hz (default 4000000)
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+ fps Display frame rate in Hz
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+ bgr Enable BGR mode (default on)
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+ debug Debug output level {0-7}
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+ dc_pin GPIO pin for D/C (default 24)
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+ reset_pin GPIO pin for RESET (default 25)
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+ led_pin GPIO used to control backlight (default 18)
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Name: adau1977-adc
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@@ -2271,6 +2278,12 @@ Info: Overlay for the SPI-connected Sa
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ST7735R chip).
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Load: dtoverlay=sainsmart18,<param>=<val>
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Params: rotate Display rotation {0,90,180,270}
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+ speed SPI bus speed in Hz (default 4000000)
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+ fps Display frame rate in Hz
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+ bgr Enable BGR mode (default on)
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+ debug Debug output level {0-7}
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+ dc_pin GPIO pin for D/C (default 24)
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+ reset_pin GPIO pin for RESET (default 25)
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Name: sc16is750-i2c
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--- a/arch/arm/boot/dts/overlays/adafruit18-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/adafruit18-overlay.dts
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@@ -33,7 +33,7 @@
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fps = <50>;
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height = <160>;
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width = <128>;
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- reset-gpios = <&gpio 25 0>;
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+ reset-gpios = <&gpio 25 1>;
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dc-gpios = <&gpio 24 0>;
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led-gpios = <&gpio 18 0>;
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bgr;
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@@ -44,6 +44,13 @@
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__overrides__ {
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green = <&af18>, "compatible=fbtft,adafruit18_green";
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- rotate = <&af18>, "rotate:0";
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+ speed = <&af18>,"spi-max-frequency:0";
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+ rotate = <&af18>,"rotate:0";
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+ fps = <&af18>,"fps:0";
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+ bgr = <&af18>,"bgr?";
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+ debug = <&af18>,"debug:0";
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+ dc_pin = <&af18>,"dc-gpios:4";
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+ reset_pin = <&af18>,"reset-gpios:4";
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+ led_pin = <&af18>,"led-gpios:4";
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};
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};
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--- a/arch/arm/boot/dts/overlays/sainsmart18-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/sainsmart18-overlay.dts
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@@ -33,7 +33,7 @@
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fps = <50>;
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height = <160>;
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width = <128>;
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- reset-gpios = <&gpio 25 0>;
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+ reset-gpios = <&gpio 25 1>;
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dc-gpios = <&gpio 24 0>;
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bgr;
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debug = <0>;
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@@ -42,6 +42,12 @@
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};
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__overrides__ {
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- rotate = <&ss18>, "rotate:0";
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+ speed = <&ss18>,"spi-max-frequency:0";
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+ rotate = <&ss18>,"rotate:0";
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+ fps = <&ss18>,"fps:0";
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+ bgr = <&ss18>,"bgr?";
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+ debug = <&ss18>,"debug:0";
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+ dc_pin = <&ss18>,"dc-gpios:4";
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+ reset_pin = <&ss18>,"reset-gpios:4";
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};
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};
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