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    Subject[PATCH v5 2/4] drm/panel: p079zca: add variable unprepare_delay properties
    Date
    From: Lin Huang <hl@rock-chips.com>

    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>
    ---
    drivers/gpu/drm/panel/panel-innolux-p079zca.c | 10 ++++++++--
    1 file 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 840ad4a6a6a6..630b0c2549ef 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);

    regulator_bulk_disable(innolux->desc->num_supplies, innolux->supplies);

    @@ -205,6 +210,7 @@ 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)
    --
    2.17.0
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