[PATCH] Support new NV140FHM-N5B and TM156VDXP25 edp panel, the NV140FHM-N5B need 200ms delays from the backlight to valid data, 100ms delays from backlight off to valid data, the TM156VDXP25 need 100ms delays from the backlight to valid data.

From: Haikun Zhou

Date: Wed Jun 17 2026 - 06:13:52 EST


NV140FHM-N5B raw edid:
00 ff ff ff ff ff ff 00 09 e5 98 0d 00 00 00 00
10 23 01 04 a5 1f 11 78 01 c8 d5 95 5d 59 94 29
23 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 94 37 80 a0 70 38 3c 40 30 20
36 00 35 ae 10 00 00 1a 76 2c 80 a0 70 38 3c 40
30 20 36 00 35 ae 10 00 00 1a 00 00 00 fd 00 28
3c 44 44 0e 01 0a 20 20 20 20 20 20 00 00 00 fc
00 4e 56 31 34 30 46 48 4d 2d 4e 35 42 0a 01 87

70 20 79 02 00 81 00 15 74 1a 00 00 03 01 28 3c
00 00 53 ff 53 ff 3c 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 f9 90

TM156VDXP25 raw edid:
00 ff ff ff ff ff ff 00 51 a1 39 21 00 00 00 00
0d 24 01 04 a5 22 13 78 03 6e 95 99 5b 58 8d 28
21 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
01 01 01 01 01 01 af 2b 80 a0 70 38 28 40 30 20
36 00 58 c2 10 00 00 1a 00 00 00 fd 00 28 3c 43
43 0e 01 0a 20 20 20 20 20 20 00 00 00 fe 00 3d
4c 20 20 20 20 20 20 20 20 20 20 ff 00 00 00 fc
00 54 4d 31 35 36 56 44 58 50 32 35 0a 20 01 ef

70 20 79 02 00 21 00 1d 72 0d 90 07 80 07 38 04
80 95 69 5b 8d 95 8d 87 42 21 02 35 54 b0 5c b0
5c 00 42 12 78 22 00 14 ff 21 02 85 7f 07 9f 00
2f 00 1f 00 37 04 27 00 02 00 05 00 2b 00 0c 27
00 28 3b 00 00 27 00 28 3b 00 00 2e 00 06 00 42
b0 5c b0 5c 81 00 1e 72 1a 00 00 03 01 28 3c 00
00 53 ff 53 ff 3c 00 00 00 00 e3 05 04 00 e6 06
00 00 00 00 00 00 00 00 00 00 00 00 00 00 90 90

Signed-off-by: Haikun Zhou <zhouhaikun5@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/panel/panel-edp.c | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/panel-edp.c
index 81e1866d54e78..3e6d8f17c3072 100644
--- a/drivers/gpu/drm/panel/panel-edp.c
+++ b/drivers/gpu/drm/panel/panel-edp.c
@@ -2010,6 +2010,15 @@ static const struct panel_delay delay_80_500_e50_d50 = {
.disable = 50,
};

+static const struct panel_delay delay_200_500_e50_po2e200_d100 = {
+ .hpd_absent = 200,
+ .unprepare = 500,
+ .enable = 50,
+ .powered_on_to_enable = 200,
+ .disable = 100,
+};
+
+
#define EDP_PANEL_ENTRY(vend_chr_0, vend_chr_1, vend_chr_2, product_id, _delay, _name) \
{ \
.ident = { \
@@ -2144,6 +2153,7 @@ static const struct edp_panel_entry edp_panels[] = {
EDP_PANEL_ENTRY('B', 'O', 'E', 0x0cfa, &delay_200_500_e50, "NV116WHM-A4D"),
EDP_PANEL_ENTRY('B', 'O', 'E', 0x0d45, &delay_200_500_e80, "NV116WHM-N4B"),
EDP_PANEL_ENTRY('B', 'O', 'E', 0x0d73, &delay_200_500_e80, "NE140WUM-N6S"),
+ EDP_PANEL_ENTRY('B', 'O', 'E', 0x0d98, &delay_200_500_e50_po2e200_d100, "NV140FHM-N5B"),
EDP_PANEL_ENTRY('B', 'O', 'E', 0x0db3, &delay_200_500_e80, "NV153WUM-N42"),
EDP_PANEL_ENTRY('B', 'O', 'E', 0x0ddf, &delay_200_500_e80, "NV116WHM-T01"),

@@ -2250,6 +2260,7 @@ static const struct edp_panel_entry edp_panels[] = {

EDP_PANEL_ENTRY('T', 'M', 'A', 0x0811, &delay_200_500_e80_d50, "TM140VDXP01-04"),
EDP_PANEL_ENTRY('T', 'M', 'A', 0x2094, &delay_200_500_e50_d100, "TL140VDMS03-01"),
+ EDP_PANEL_ENTRY('T', 'M', 'A', 0x2139, &delay_200_500_e50_d100, "TM156VDXP25"),

{ /* sentinal */ }
};
--
2.34.1