Remove old driver again. It crashes.
This commit is contained in:
Melissa LeBlanc-Williams
parent
f2958a312a
commit
e237196448
5 changed files with 54 additions and 542 deletions
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@ -260,9 +260,7 @@ def install_drivers():
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shell.pushd("st7789_module")
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if not shell.run_command("make"):
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warn_exit("Apt failed to compile ST7789V drivers!")
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shell.run_command("mv /lib/modules/{rel}/kernel/drivers/gpu/drm/tiny/mi0283qt.ko /lib/modules/{rel}/kernel/drivers/gpu/drm/tiny/mi0283qt.BACK".format(rel=shell.release()))
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shell.run_command("mv /lib/modules/{rel}/kernel/drivers/staging/fbtft/fb_st7789v.ko /lib/modules/{rel}/kernel/drivers/staging/fbtft/fb_st7789v.BACK".format(rel=shell.release()))
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shell.run_command("mv st7789v_ada.ko /lib/modules/{rel}/kernel/drivers/gpu/drm/tiny/mi0283qt.ko".format(rel=shell.release()))
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shell.run_command("mv fb_st7789v.ko /lib/modules/{rel}/kernel/drivers/staging/fbtft/fb_st7789v.ko".format(rel=shell.release()))
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shell.popd()
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return True
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@ -1,71 +0,0 @@
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/*
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* Device Tree overlay for Adafruit Mini PiTFT 1.14" 135x240 Display
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*
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*/
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/dts-v1/;
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/plugin/;
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/ {
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compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
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fragment@0 {
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target = <&spi0>;
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__overlay__ {
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status = "okay";
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spidev@0{
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status = "disabled";
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};
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spidev@1{
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status = "disabled";
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};
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};
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};
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fragment@1 {
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target = <&gpio>;
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__overlay__ {
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pitft_pins: pitft_pins {
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brcm,pins = <25>;
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brcm,function = <1>; /* out */
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brcm,pull = <0>; /* none */
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};
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};
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};
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fragment@2 {
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target = <&spi0>;
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__overlay__ {
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/* needed to avoid dtc warning */
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#address-cells = <1>;
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#size-cells = <0>;
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pitft: pitft@0{
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compatible = "sitronix,st7789v";
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reg = <0>;
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pinctrl-names = "default";
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pinctrl-0 = <&pitft_pins>;
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spi-max-frequency = <32000000>;
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rotate = <270>;
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width = <135>;
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height = <240>;
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buswidth = <8>;
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dc-gpios = <&gpio 25 0>;
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led-gpios = <&gpio 26 0>;
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debug = <0>;
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};
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};
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};
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__overrides__ {
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speed = <&pitft>,"spi-max-frequency:0";
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rotate = <&pitft>,"rotate:0";
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width = <&pitft>,"width:0";
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height = <&pitft>,"height:0";
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fps = <&pitft>,"fps:0";
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debug = <&pitft>,"debug:0";
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};
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};
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@ -1,5 +1,5 @@
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/*
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* Device Tree overlay for Adafruit Mini PiTFT 1.14" Display
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* Device Tree overlay for Adafruit Mini PiTFT 1.14" 135x240 Display
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*
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*/
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@ -7,72 +7,65 @@
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/plugin/;
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/ {
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compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
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compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
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fragment@0 {
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target = <&spi0>;
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__overlay__ {
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status = "okay";
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fragment@0 {
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target = <&spi0>;
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__overlay__ {
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status = "okay";
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spidev@0{
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status = "disabled";
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};
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spidev@0{
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status = "disabled";
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};
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};
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};
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spidev@1{
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status = "disabled";
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};
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};
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};
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fragment@1 {
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target = <&gpio>;
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__overlay__ {
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pitft_pins: pitft_pins {
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brcm,pins = <25>; /* dc pin */
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brcm,function = <1>; /* out */
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brcm,pull = <0>; /* no pull */
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};
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};
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};
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fragment@1 {
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target = <&gpio>;
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__overlay__ {
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pitft_pins: pitft_pins {
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brcm,pins = <25>;
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brcm,function = <1>; /* out */
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brcm,pull = <0>; /* none */
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};
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};
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};
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fragment@2 {
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target = <&spi0>;
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__overlay__ {
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/* needed to avoid dtc warning */
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#address-cells = <1>;
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#size-cells = <0>;
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fragment@2 {
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target = <&spi0>;
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__overlay__ {
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/* needed to avoid dtc warning */
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#address-cells = <1>;
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#size-cells = <0>;
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pitft: pitft@0{
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compatible = "multi-inno,mi0283qt";
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reg = <0>;
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pinctrl-names = "default";
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pinctrl-0 = <&pitft_pins>;
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pitft: pitft@0{
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compatible = "sitronix,st7789v";
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reg = <0>;
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pinctrl-names = "default";
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pinctrl-0 = <&pitft_pins>;
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spi-max-frequency = <32000000>;
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rotate = <270>;
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width = <135>;
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height = <240>;
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buswidth = <8>;
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dc-gpios = <&gpio 25 0>;
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led-gpios = <&gpio 26 0>;
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debug = <0>;
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};
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};
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};
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spi-max-frequency = <32000000>;
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rotation = <90>;
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width = <136>;
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height = <240>;
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col_offset = <53>;
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row_offset = <40>;
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dc-gpios = <&gpio 25 0>;
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backlight = <&backlight>;
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};
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};
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};
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fragment@3 {
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target-path = "/soc";
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__overlay__ {
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backlight: backlight {
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compatible = "gpio-backlight";
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gpios = <&gpio 22 0>;
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};
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};
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};
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__overrides__ {
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speed = <&pitft>,"spi-max-frequency:0";
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rotation = <&pitft>,"rotation:0";
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width = <&pitft>,"width:0";
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height = <&pitft>,"height:0";
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col_offset = <&pitft>,"col_offset:0";
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row_offset = <&pitft>,"row_offset:0";
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};
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__overrides__ {
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speed = <&pitft>,"spi-max-frequency:0";
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rotate = <&pitft>,"rotate:0";
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width = <&pitft>,"width:0";
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height = <&pitft>,"height:0";
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fps = <&pitft>,"fps:0";
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debug = <&pitft>,"debug:0";
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};
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};
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@ -1,4 +1,3 @@
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obj-m += st7789v_ada.o
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obj-m += fb_st7789v.o
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KDIR ?= /lib/modules/`uname -r`/build
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@ -1,407 +0,0 @@
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* DRM driver for ST7789V panels with flexible config
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*
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* Copyright 2021 Melissa LeBlanc-Williams
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* Copyright 2019 Limor Fried
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* Copyright 2016 Noralf Trønnes
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/backlight.h>
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#include <linux/delay.h>
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#include <linux/gpio/consumer.h>
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#include <linux/module.h>
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#include <linux/property.h>
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#include <linux/regulator/consumer.h>
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#include <linux/spi/spi.h>
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#include <linux/version.h>
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#include <drm/drm_atomic_helper.h>
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#include <drm/drm_damage_helper.h>
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#include <drm/drm_drv.h>
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#include <drm/drm_fb_cma_helper.h>
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#include <drm/drm_fb_helper.h>
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#include <drm/drm_fourcc.h>
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#include <drm/drm_gem_cma_helper.h>
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#include <drm/drm_gem_framebuffer_helper.h>
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#include <drm/drm_mipi_dbi.h>
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#include <drm/drm_rect.h>
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#include <drm/drm_vblank.h>
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#include <drm/drm_modeset_helper.h>
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#include <video/mipi_display.h>
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#define ST77XX_MADCTL_MY 0x80
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#define ST77XX_MADCTL_MX 0x40
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#define ST77XX_MADCTL_MV 0x20
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#define ST77XX_MADCTL_ML 0x10
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#define ST77XX_MADCTL_BGR 0x08
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#define ST77XX_MADCTL_RGB 0x00
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static u32 col_offset = 0;
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static u32 row_offset = 0;
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static u8 col_hack_fix_offset = 0;
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static short x_offset = 0;
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static short y_offset = 0;
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static void st7789vada_fb_dirty(struct drm_framebuffer *fb, struct drm_rect *rect)
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{
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struct drm_gem_cma_object *cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
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struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(fb->dev);
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unsigned int height = rect->y2 - rect->y1;
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unsigned int width = rect->x2 - rect->x1;
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struct mipi_dbi *dbi = &dbidev->dbi;
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bool swap = dbi->swap_bytes;
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u16 x1, x2, y1, y2;
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int idx, ret = 0;
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bool full;
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void *tr;
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if (!drm_dev_enter(fb->dev, &idx))
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return;
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full = width == fb->width && height == fb->height;
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DRM_DEBUG_KMS("Flushing [FB:%d] " DRM_RECT_FMT "\n", fb->base.id, DRM_RECT_ARG(rect));
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if (!dbi->dc || !full || swap ||
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fb->format->format == DRM_FORMAT_XRGB8888) {
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tr = dbidev->tx_buf;
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ret = mipi_dbi_buf_copy(dbidev->tx_buf, fb, rect, swap);
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if (ret)
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goto err_msg;
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} else {
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tr = cma_obj->vaddr;
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}
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x1 = rect->x1 + x_offset;
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x2 = rect->x2 - 1 + x_offset;
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y1 = rect->y1 + y_offset;
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y2 = rect->y2 - 1 + y_offset;
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//printk(KERN_INFO "setaddrwin (%d, %d) -> (%d, %d) offsets: %d & %d \n", x1, y1, x2, y2, x_offset, y_offset);
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mipi_dbi_command(dbi, MIPI_DCS_SET_COLUMN_ADDRESS,
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(x1 >> 8) & 0xFF, x1 & 0xFF,
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(x2 >> 8) & 0xFF, x2 & 0xFF);
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mipi_dbi_command(dbi, MIPI_DCS_SET_PAGE_ADDRESS,
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(y1 >> 8) & 0xFF, y1 & 0xFF,
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(y2 >> 8) & 0xFF, y2 & 0xFF);
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ret = mipi_dbi_command_buf(dbi, MIPI_DCS_WRITE_MEMORY_START, tr,
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width*height * 2);
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err_msg:
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if (ret)
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dev_err_once(fb->dev->dev, "Failed to update display %d\n", ret);
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drm_dev_exit(idx);
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}
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static void st7789vada_pipe_update(struct drm_simple_display_pipe *pipe,
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struct drm_plane_state *old_state)
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{
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struct drm_plane_state *state = pipe->plane.state;
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struct drm_crtc *crtc = &pipe->crtc;
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struct drm_rect rect;
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if (drm_atomic_helper_damage_merged(old_state, state, &rect))
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st7789vada_fb_dirty(state->fb, &rect);
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if (crtc->state->event) {
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spin_lock_irq(&crtc->dev->event_lock);
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drm_crtc_send_vblank_event(crtc, crtc->state->event);
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spin_unlock_irq(&crtc->dev->event_lock);
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crtc->state->event = NULL;
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}
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}
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static struct drm_display_mode st7789vada_mode = {
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DRM_SIMPLE_MODE(240, 320, 58, 43),
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};
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DEFINE_DRM_GEM_CMA_FOPS(st7789vada_fops);
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static struct drm_driver st7789vada_driver = {
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.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
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.fops = &st7789vada_fops,
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DRM_GEM_CMA_DRIVER_OPS_VMAP,
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.debugfs_init = mipi_dbi_debugfs_init,
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.name = "st7789vada",
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.desc = "ST7789V Adafruit",
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.date = "20200727",
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.major = 1,
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.minor = 0,
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};
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static const struct of_device_id st7789vada_of_match[] = {
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{ .compatible = "multi-inno,mi0283qt" },
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{},
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};
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MODULE_DEVICE_TABLE(of, st7789vada_of_match);
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static const struct spi_device_id st7789vada_id[] = {
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{ "st7789vada", 0 },
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{ },
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};
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MODULE_DEVICE_TABLE(spi, st7789vada_id);
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static void st7789vada_enable(struct drm_simple_display_pipe *pipe,
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struct drm_crtc_state *crtc_state,
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struct drm_plane_state *plane_state)
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{
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struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(pipe->crtc.dev);
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struct mipi_dbi *dbi = &dbidev->dbi;
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u8 addr_mode;
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u16 width = st7789vada_mode.htotal;
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u16 height = st7789vada_mode.vtotal;
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int ret, idx;
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//printk(KERN_INFO "w/h %d %d\n", width, height);
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if (!drm_dev_enter(pipe->crtc.dev, &idx))
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return;
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DRM_DEBUG_KMS("\n");
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ret = mipi_dbi_poweron_conditional_reset(dbidev);
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if (ret < 0)
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goto out_exit;
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if (ret == 1)
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goto out_enable;
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mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_OFF);
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mipi_dbi_command(dbi, MIPI_DCS_SOFT_RESET);
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msleep(150);
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mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE);
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msleep(10);
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mipi_dbi_command(dbi, MIPI_DCS_SET_PIXEL_FORMAT, 0x55); // 16 bit color
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msleep(10);
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mipi_dbi_command(dbi, MIPI_DCS_SET_ADDRESS_MODE, 0);
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mipi_dbi_command(dbi, MIPI_DCS_SET_COLUMN_ADDRESS, 0, 0, 0, 240);
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mipi_dbi_command(dbi, MIPI_DCS_SET_PAGE_ADDRESS, 0, 0, 320>>8, 320&0xFF);
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mipi_dbi_command(dbi, MIPI_DCS_ENTER_INVERT_MODE); // odd hack, displays are inverted
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mipi_dbi_command(dbi, MIPI_DCS_ENTER_NORMAL_MODE);
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msleep(10);
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mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON);
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msleep(10);
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out_enable:
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/* The PiTFT has a hardware reset circuit that
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* resets only on power-on and not on each reboot through
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* a gpio like the rpi-display does.
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* As a result, we need to always apply the rotation value
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* regardless of the display "on/off" state.
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*/
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switch (dbidev->rotation) {
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default:
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addr_mode = 0;
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x_offset = col_offset;
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y_offset = row_offset;
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break;
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case 90:
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addr_mode = ST77XX_MADCTL_MV | ST77XX_MADCTL_MX;
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x_offset = row_offset;
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y_offset = col_offset;
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break;
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case 180:
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addr_mode = ST77XX_MADCTL_MX | ST77XX_MADCTL_MY;
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x_offset = (240 - width) - col_offset + col_hack_fix_offset;
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// hack tweak to account for extra pixel width to make even
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y_offset = (320 - height) - row_offset;
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break;
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case 270:
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addr_mode = ST77XX_MADCTL_MV | ST77XX_MADCTL_MY;
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x_offset = (320 - height) - row_offset;
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y_offset = (240 - width) - col_offset;
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break;
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}
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//printk(KERN_INFO "Rotation offsets %d %d\n", x_offset, y_offset);
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|
||||
mipi_dbi_command(dbi, MIPI_DCS_SET_ADDRESS_MODE, addr_mode);
|
||||
|
||||
mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON);
|
||||
|
||||
mipi_dbi_enable_flush(dbidev, crtc_state, plane_state);
|
||||
out_exit:
|
||||
drm_dev_exit(idx);
|
||||
}
|
||||
|
||||
|
||||
|
||||
static const struct drm_simple_display_pipe_funcs st7789vada_pipe_funcs = {
|
||||
.enable = st7789vada_enable,
|
||||
.disable = mipi_dbi_pipe_disable,
|
||||
.update = st7789vada_pipe_update,
|
||||
.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
|
||||
};
|
||||
|
||||
|
||||
|
||||
static int st7789vada_probe(struct spi_device *spi)
|
||||
{
|
||||
struct device *dev = &spi->dev;
|
||||
struct mipi_dbi_dev *dbidev;
|
||||
struct drm_device *drm;
|
||||
struct mipi_dbi *dbi;
|
||||
struct gpio_desc *dc;
|
||||
u32 rotation = 0;
|
||||
u32 width = 240;
|
||||
u32 height = 320;
|
||||
int ret;
|
||||
|
||||
dbidev = kzalloc(sizeof(*dbidev), GFP_KERNEL);
|
||||
if (!dbidev)
|
||||
return -ENOMEM;
|
||||
|
||||
//printk(KERN_INFO "ST7789 fake driver\n");
|
||||
|
||||
dbi = &dbidev->dbi;
|
||||
drm = drm_dev_alloc(&st7789vada_driver, dev);
|
||||
ret = drm_dev_register(drm, 0);
|
||||
|
||||
if (ret) {
|
||||
kfree(dbidev);
|
||||
return ret;
|
||||
}
|
||||
|
||||
drm_mode_config_init(drm);
|
||||
|
||||
dbi->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
|
||||
if (IS_ERR(dbi->reset)) {
|
||||
DRM_DEV_ERROR(dev, "Failed to get gpio 'reset'\n");
|
||||
return PTR_ERR(dbi->reset);
|
||||
}
|
||||
|
||||
dc = devm_gpiod_get_optional(dev, "dc", GPIOD_OUT_LOW);
|
||||
if (IS_ERR(dc)) {
|
||||
DRM_DEV_ERROR(dev, "Failed to get gpio 'dc'\n");
|
||||
return PTR_ERR(dc);
|
||||
}
|
||||
|
||||
dbidev->regulator = devm_regulator_get(dev, "power");
|
||||
if (IS_ERR(dbidev->regulator))
|
||||
return PTR_ERR(dbidev->regulator);
|
||||
|
||||
dbidev->backlight = devm_of_find_backlight(dev);
|
||||
if (IS_ERR(dbidev->backlight))
|
||||
return PTR_ERR(dbidev->backlight);
|
||||
|
||||
device_property_read_u32(dev, "rotation", &rotation);
|
||||
//printk(KERN_INFO "Rotation %d\n", rotation);
|
||||
|
||||
device_property_read_u32(dev, "width", &width);
|
||||
if (width % 2) {
|
||||
width +=1; // odd width will cause a kernel panic
|
||||
col_hack_fix_offset = 3;
|
||||
} else {
|
||||
col_hack_fix_offset = 0;
|
||||
}
|
||||
//printk(KERN_INFO "Width %d\n", width);
|
||||
if ((width == 0) || (width > 240)) {
|
||||
width = 240; // default to full framebuff;
|
||||
}
|
||||
device_property_read_u32(dev, "height", &height);
|
||||
//printk(KERN_INFO "Height %d\n", height);
|
||||
if ((height == 0) || (height > 320)) {
|
||||
height = 320; // default to full framebuff;
|
||||
}
|
||||
|
||||
st7789vada_mode.hdisplay = st7789vada_mode.hsync_start =
|
||||
st7789vada_mode.hsync_end = st7789vada_mode.htotal = width;
|
||||
st7789vada_mode.vdisplay = st7789vada_mode.vsync_start =
|
||||
st7789vada_mode.vsync_end = st7789vada_mode.vtotal = height;
|
||||
|
||||
|
||||
device_property_read_u32(dev, "col_offset", &col_offset);
|
||||
//printk(KERN_INFO "Column offset %d\n", col_offset);
|
||||
|
||||
device_property_read_u32(dev, "row_offset", &row_offset);
|
||||
//printk(KERN_INFO "Row offset %d\n", row_offset);
|
||||
|
||||
|
||||
ret = mipi_dbi_spi_init(spi, dbi, dc);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/* Cannot read from this controller via SPI */
|
||||
dbi->read_commands = NULL;
|
||||
|
||||
ret = mipi_dbi_dev_init(dbidev, &st7789vada_pipe_funcs, &st7789vada_mode, rotation);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
drm_mode_config_reset(drm);
|
||||
|
||||
ret = drm_dev_register(drm, 0);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
spi_set_drvdata(spi, drm);
|
||||
|
||||
drm_fbdev_generic_setup(drm, 0);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int st7789vada_remove(struct spi_device *spi)
|
||||
{
|
||||
struct drm_device *drm = spi_get_drvdata(spi);
|
||||
|
||||
drm_dev_unplug(drm);
|
||||
drm_atomic_helper_shutdown(drm);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void st7789vada_shutdown(struct spi_device *spi)
|
||||
{
|
||||
drm_atomic_helper_shutdown(spi_get_drvdata(spi));
|
||||
}
|
||||
|
||||
static int __maybe_unused st7789vada_pm_suspend(struct device *dev)
|
||||
{
|
||||
return drm_mode_config_helper_suspend(dev_get_drvdata(dev));
|
||||
}
|
||||
|
||||
static int __maybe_unused st7789vada_pm_resume(struct device *dev)
|
||||
{
|
||||
drm_mode_config_helper_resume(dev_get_drvdata(dev));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct dev_pm_ops st7789vada_pm_ops = {
|
||||
SET_SYSTEM_SLEEP_PM_OPS(st7789vada_pm_suspend, st7789vada_pm_resume)
|
||||
};
|
||||
|
||||
static struct spi_driver st7789vada_spi_driver = {
|
||||
.driver = {
|
||||
.name = "st7789vada",
|
||||
.owner = THIS_MODULE,
|
||||
.of_match_table = st7789vada_of_match,
|
||||
.pm = &st7789vada_pm_ops,
|
||||
},
|
||||
.id_table = st7789vada_id,
|
||||
.probe = st7789vada_probe,
|
||||
.remove = st7789vada_remove,
|
||||
.shutdown = st7789vada_shutdown,
|
||||
};
|
||||
module_spi_driver(st7789vada_spi_driver);
|
||||
|
||||
MODULE_DESCRIPTION("Sitronix ST7789V Flexible DRM driver");
|
||||
MODULE_AUTHOR("Noralf Trønnes + Limor Fried + Melissa LeBlanc-Williams");
|
||||
MODULE_LICENSE("GPL");
|
||||
Loading…
Reference in a new issue