Commit 8a45632e authored by Michael Walle's avatar Michael Walle Committed by Neil Armstrong
Browse files

drm/panel-simple: add AUO P238HAN01 panel entry 

Timings taken from the datasheet and the display is working in DE mode,
thus the datasheet only specifies the blanking period. sync, back porch
and front porch are arbitrarily chosen.

The datasheet can be found at [1] but for reference these are the
relevant timings:

 sym  |              | min  | typ  | max  | unit |
------|--------------+------+------+------+------+
   Tv | V period     | 1094 | 1130 | 1836 | Th   |
      | V active     | 1080 | 1080 | 1080 | Th   |
      | V blanking   |   14 |   50 |  756 | Th   |
   Fv | V frequency  |   49 |   60 |   76 | Hz   |
   Th | H period     | 1000 | 1050 | 1678 | Tclk |
      | H active     |  960 |  960 |  960 | Tclk |
      | H blanking   |   40 |   90 |  718 | Tclk |
   Fh | H frequency  | 53.7 | 67.8 | 90.0 | kHz  |
 Tclk | LVDS clock   | 53.7 | 71.2 | 90.0 | MHz  |

Keep in mind that this is a dual link LVDS panel and the horizontal
timings are only for one half of the panel.

[1] https://www.fortec-integrated.de/fileadmin/pdf/produkte/TFT-Displays/AUO/P238HAN01.0_Datasheet.pdf



Signed-off-by: default avatarMichael Walle <mwalle@kernel.org>
Reviewed-by: default avatarNeil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: default avatarNeil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250520074439.655749-2-mwalle@kernel.org
parent a3bc2ee0

drivers/gpu/drm/panel/panel-simple.c

+27 −0
Original line number Diff line number Diff line
@@ -1268,6 +1268,30 @@ static const struct panel_desc auo_g190ean01 = { 
	.connector_type = DRM_MODE_CONNECTOR_LVDS,

};



static const struct display_timing auo_p238han01_timings = {

	.pixelclock = { 107400000, 142400000, 180000000 },

	.hactive = { 1920, 1920, 1920 },

	.hfront_porch = { 30, 70, 650 },

	.hback_porch = { 30, 70, 650 },

	.hsync_len = { 20, 40, 136 },

	.vactive = { 1080, 1080, 1080 },

	.vfront_porch = { 5, 19, 318 },

	.vback_porch = { 5, 19, 318 },

	.vsync_len = { 4, 12, 120 },

};



static const struct panel_desc auo_p238han01 = {

	.timings = &auo_p238han01_timings,

	.num_timings = 1,

	.bpc = 8,

	.size = {

		.width = 527,

		.height = 296,

	},

	.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,

	.connector_type = DRM_MODE_CONNECTOR_LVDS,

};



static const struct display_timing auo_p320hvn03_timings = {

	.pixelclock = { 106000000, 148500000, 164000000 },

	.hactive = { 1920, 1920, 1920 },
@@ -4937,6 +4961,9 @@ static const struct of_device_id platform_of_match[] = { 
	}, {

		.compatible = "auo,g190ean01",

		.data = &auo_g190ean01,

	}, {

		.compatible = "auo,p238han01",

		.data = &auo_p238han01,

	}, {

		.compatible = "auo,p320hvn03",

		.data = &auo_p320hvn03,