The series adds support for the display on the stm32f746-disco board,
along with a generic patch that adds the "bpp" parameter to the stm-drm
module. The intention is to allow users to size, within certain limits,
the memory footprint required by the framebuffer.
Dario Binacchi (6):
ARM: dts: stm32: add ltdc support on stm32f746 MCU
ARM: dts: stm32: add pin map for LTDC on stm32f7
ARM: dts: stm32: support display on stm32f746-disco board
dt-bindings: display: simple: add Rocktech RK043FN48H
drm/panel: simple: add support for Rocktech RK043FN48H panel
drm/stm: add an option to change FB bpp
.../bindings/display/panel/panel-simple.yaml | 2 +
arch/arm/boot/dts/stm32f7-pinctrl.dtsi | 35 +++++++++++++
arch/arm/boot/dts/stm32f746-disco.dts | 51 +++++++++++++++++++
arch/arm/boot/dts/stm32f746.dtsi | 10 ++++
drivers/gpu/drm/panel/panel-simple.c | 29 +++++++++++
drivers/gpu/drm/stm/drv.c | 8 ++-
6 files changed, 134 insertions(+), 1 deletion(-)
--
2.32.0
Add support for Rocktech RK043FN48H 4.3" (480x272) LCD-TFT panel.
Signed-off-by: Dario Binacchi <[email protected]>
---
drivers/gpu/drm/panel/panel-simple.c | 29 ++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 065f378bba9d..e8e2b2a55f37 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -3188,6 +3188,32 @@ static const struct panel_desc qishenglong_gopher2b_lcd = {
.connector_type = DRM_MODE_CONNECTOR_DPI,
};
+static const struct display_timing rocktech_rk043fn48h_timing = {
+ .pixelclock = { 6000000, 9000000, 12000000 },
+ .hactive = { 480, 480, 480 },
+ .hback_porch = { 8, 43, 43 },
+ .hfront_porch = { 2, 8, 8 },
+ .hsync_len = { 1, 1, 1 },
+ .vactive = { 272, 272, 272 },
+ .vback_porch = { 2, 12, 12 },
+ .vfront_porch = { 1, 4, 4 },
+ .vsync_len = { 1, 10, 10 },
+ .flags = DISPLAY_FLAGS_VSYNC_LOW + DISPLAY_FLAGS_HSYNC_LOW |
+ DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE,
+};
+
+static const struct panel_desc rocktech_rk043fn48h = {
+ .timings = &rocktech_rk043fn48h_timing,
+ .num_timings = 1,
+ .bpc = 8,
+ .size = {
+ .width = 95,
+ .height = 54,
+ },
+ .bus_format = MEDIA_BUS_FMT_RGB888_1X24,
+ .connector_type = DRM_MODE_CONNECTOR_DPI,
+};
+
static const struct display_timing rocktech_rk070er9427_timing = {
.pixelclock = { 26400000, 33300000, 46800000 },
.hactive = { 800, 800, 800 },
@@ -4218,6 +4244,9 @@ static const struct of_device_id platform_of_match[] = {
}, {
.compatible = "qishenglong,gopher2b-lcd",
.data = &qishenglong_gopher2b_lcd,
+ }, {
+ .compatible = "rocktech,rk043fn48h",
+ .data = &rocktech_rk043fn48h,
}, {
.compatible = "rocktech,rk070er9427",
.data = &rocktech_rk070er9427,
--
2.32.0
Hi Dario,
kernel test robot noticed the following build warnings:
[auto build test WARNING on drm-intel/for-linux-next-fixes]
[also build test WARNING on drm-tip/drm-tip linus/master v6.4-rc4 next-20230601]
[cannot apply to atorgue-stm32/stm32-next drm-misc/drm-misc-next drm-intel/for-linux-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Dario-Binacchi/ARM-dts-stm32-add-ltdc-support-on-stm32f746-MCU/20230602-010536
base: git://anongit.freedesktop.org/drm-intel for-linux-next-fixes
patch link: https://lore.kernel.org/r/20230601170320.2845218-6-dario.binacchi%40amarulasolutions.com
patch subject: [PATCH 5/6] drm/panel: simple: add support for Rocktech RK043FN48H panel
config: mips-allyesconfig (https://download.01.org/0day-ci/archive/20230602/[email protected]/config)
compiler: mips-linux-gcc (GCC) 12.3.0
reproduce (this is a W=1 build):
mkdir -p ~/bin
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/5a692e898df9428078855c58f8e945def084613b
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Dario-Binacchi/ARM-dts-stm32-add-ltdc-support-on-stm32f746-MCU/20230602-010536
git checkout 5a692e898df9428078855c58f8e945def084613b
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=mips olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash drivers/gpu/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
All warnings (new ones prefixed by >>):
>> drivers/gpu/drm/panel/panel-simple.c:3201:68: warning: suggest parentheses around arithmetic in operand of '|' [-Wparentheses]
3201 | .flags = DISPLAY_FLAGS_VSYNC_LOW + DISPLAY_FLAGS_HSYNC_LOW |
| ^
vim +3201 drivers/gpu/drm/panel/panel-simple.c
3190
3191 static const struct display_timing rocktech_rk043fn48h_timing = {
3192 .pixelclock = { 6000000, 9000000, 12000000 },
3193 .hactive = { 480, 480, 480 },
3194 .hback_porch = { 8, 43, 43 },
3195 .hfront_porch = { 2, 8, 8 },
3196 .hsync_len = { 1, 1, 1 },
3197 .vactive = { 272, 272, 272 },
3198 .vback_porch = { 2, 12, 12 },
3199 .vfront_porch = { 1, 4, 4 },
3200 .vsync_len = { 1, 10, 10 },
> 3201 .flags = DISPLAY_FLAGS_VSYNC_LOW + DISPLAY_FLAGS_HSYNC_LOW |
3202 DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE,
3203 };
3204
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki