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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
This commit is contained in:
Lin Huang 2018-07-02 12:27:19 +02:00 committed by Thierry Reding
parent 7ad4e4636c
commit 48bd379aa2
1 changed files with 8 additions and 2 deletions
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10
drivers/gpu/drm/panel/panel-innolux-p079zca.c
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@ -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)