From: Lin Huang <hl@rock-chips.com>
Date: Mon, 2 Jul 2018 12:27:19 +0200
Subject: drm/panel: p079zca: Add variable unprepare_delay properties
Git-commit: 48bd379aa23d0d6249490137e5ebe7f8aeeb887d
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
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
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/panel/panel-innolux-p079zca.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
--- 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(struc
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_p
.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)