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drm/panel: boe-tv101wum-nl6: Fine tune the panel power sequence

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[ 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@mediatek.com>
Signed-off-by: Xinlei Lee <xinlei.lee@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230515094955.15982-3-shuijing.li@mediatek.com
Stable-dep-of: 6965809e5269 ("drm/panel: auo,b101uan08.3: Fine tune the panel power sequence")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Shuijing Li
2023-05-15 17:49:55 +08:00
committed by Greg Kroah-Hartman
parent 3b797242d1
commit 2c688ae2dd
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
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@@ -36,6 +36,7 @@ struct panel_desc {
const struct panel_init_cmd *init_cmds; const struct panel_init_cmd *init_cmds;
unsigned int lanes; unsigned int lanes;
bool discharge_on_disable; bool discharge_on_disable;
bool lp11_before_reset;
}; };
struct boe_panel { struct boe_panel {
@@ -551,6 +552,10 @@ static int boe_panel_prepare(struct drm_panel *panel)
usleep_range(5000, 10000); 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); gpiod_set_value(boe->enable_gpio, 1);
usleep_range(1000, 2000); usleep_range(1000, 2000);
gpiod_set_value(boe->enable_gpio, 0); 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 | .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
MIPI_DSI_MODE_LPM, MIPI_DSI_MODE_LPM,
.init_cmds = boe_init_cmd, .init_cmds = boe_init_cmd,
.lp11_before_reset = true,
}; };
static int boe_panel_get_modes(struct drm_panel *panel, static int boe_panel_get_modes(struct drm_panel *panel,