This is a note to let you know that I've just added the patch titled
drm/panel: boe-tv101wum-nl6: Fine tune the panel power sequence
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-panel-boe-tv101wum-nl6-fine-tune-the-panel-power.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 8a74d9e475f0f773bf1a69b7e104c27f1c48a199
Author: Shuijing Li <shuijing.li@xxxxxxxxxxxx>
Date: Mon May 15 17:49:55 2023 +0800
drm/panel: boe-tv101wum-nl6: Fine tune the panel power sequence
[ Upstream commit 812562b8d881ce6d33fed8052b3a10b718430fb5 ]
For "boe,tv105wum-nw0" this special panel, it is stipulated in
the panel spec that MIPI needs to keep the LP11 state before
the lcm_reset pin is pulled high.
Signed-off-by: Shuijing Li <shuijing.li@xxxxxxxxxxxx>
Signed-off-by: Xinlei Lee <xinlei.lee@xxxxxxxxxxxx>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230515094955.15982-3-shuijing.li@xxxxxxxxxxxx
Stable-dep-of: 6965809e5269 ("drm/panel: auo,b101uan08.3: Fine tune the panel power sequence")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
index db9d0b86d5428..3229e5eabbd21 100644
--- a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
+++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
@@ -36,6 +36,7 @@ struct panel_desc {
const struct panel_init_cmd *init_cmds;
unsigned int lanes;
bool discharge_on_disable;
+ bool lp11_before_reset;
};
struct boe_panel {
@@ -551,6 +552,10 @@ static int boe_panel_prepare(struct drm_panel *panel)
usleep_range(5000, 10000);
+ if (boe->desc->lp11_before_reset) {
+ mipi_dsi_dcs_nop(boe->dsi);
+ usleep_range(1000, 2000);
+ }
gpiod_set_value(boe->enable_gpio, 1);
usleep_range(1000, 2000);
gpiod_set_value(boe->enable_gpio, 0);
@@ -719,6 +724,7 @@ static const struct panel_desc boe_tv105wum_nw0_desc = {
.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
MIPI_DSI_MODE_LPM,
.init_cmds = boe_init_cmd,
+ .lp11_before_reset = true,
};
static int boe_panel_get_modes(struct drm_panel *panel,
