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authorLin Huang <hl@rock-chips.com>2018-07-02 13:27:19 +0300
committerThierry Reding <treding@nvidia.com>2018-07-10 18:59:05 +0300
commit48bd379aa23d0d6249490137e5ebe7f8aeeb887d (patch)
tree9eb4dc7bcad122206214f3e058522f03cde7ad40 /drivers/gpu/drm/panel
parent7ad4e4636c54dcfbcaf43c8737af3c294ed17d11 (diff)
downloadlinux-48bd379aa23d0d6249490137e5ebe7f8aeeb887d.tar.xz
drm/panel: p079zca: Add variable unprepare_delay properties
When panel power down, p079zca need delay between reset and disable power supply, but p097pfg does not need it. Similarly p097zca needs a delay after entering panel sleep mode. So add two delay properties, so we can meet these two panel power down sequence. Signed-off-by: Lin Huang <hl@rock-chips.com> [add sleep-mode delay] Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180702102721.3546-3-heiko@sntech.de
Diffstat (limited to 'drivers/gpu/drm/panel')
-rw-r--r--drivers/gpu/drm/panel/panel-innolux-p079zca.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/gpu/drm/panel/panel-innolux-p079zca.c b/drivers/gpu/drm/panel/panel-innolux-p079zca.c
index 185a55060195..69bee4413aae 100644
--- a/drivers/gpu/drm/panel/panel-innolux-p079zca.c
+++ b/drivers/gpu/drm/panel/panel-innolux-p079zca.c
@@ -33,6 +33,8 @@ struct panel_desc {
unsigned int lanes;
const char * const *supply_names;
unsigned int num_supplies;
+ unsigned int sleep_mode_delay;
+ unsigned int power_down_delay;
};
struct innolux_panel {
@@ -89,10 +91,13 @@ static int innolux_panel_unprepare(struct drm_panel *panel)
return err;
}
+ if (innolux->desc->sleep_mode_delay)
+ msleep(innolux->desc->sleep_mode_delay);
+
gpiod_set_value_cansleep(innolux->enable_gpio, 0);
- /* T8: 80ms - 1000ms */
- msleep(80);
+ if (innolux->desc->power_down_delay)
+ msleep(innolux->desc->power_down_delay);
err = regulator_bulk_disable(innolux->desc->num_supplies,
innolux->supplies);
@@ -208,6 +213,7 @@ static const struct panel_desc innolux_p079zca_panel_desc = {
.lanes = 4,
.supply_names = innolux_p079zca_supply_names,
.num_supplies = ARRAY_SIZE(innolux_p079zca_supply_names),
+ .power_down_delay = 80, /* T8: 80ms - 1000ms */
};
static int innolux_panel_get_modes(struct drm_panel *panel)