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>
---
drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
index a5652d38acda..64e462f49c60 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 {
@@ -1365,6 +1366,10 @@ static int boe_panel_prepare(struct drm_panel *panel)
usleep_range(10000, 11000);
+ 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);
@@ -1591,6 +1596,7 @@ 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 const struct drm_display_mode starry_qfh032011_53g_default_mode = {
--
2.40.1
