This reverts commit 18a1488bf1e13fc3fc96d7948466b2166067c6c8.
Those delays were added to support the Samsung ATNA33XC20
panel. However, we've moving that to its own panel driver and out of
panel-simple. That means we don't need the ability to specify this
delay.
NOTE: it's unlikely we want to keep this delay "just in case" some
other panel needs it. The enable-gpio and the power supply are really
supposed to be different ways to specify the same thing: the main
enable of the panel. Supporting a delay between them doesn't really
make sense.
Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
Reviewed-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
---
(no changes since v1)
drivers/gpu/drm/panel/panel-simple.c | 28 ----------------------------
1 file changed, 28 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index c8694f7f8e0f..ff8b59471c71 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -132,22 +132,6 @@ struct panel_desc {
*/
unsigned int prepare_to_enable;
- /**
- * @delay.power_to_enable: Time for the power to enable the display on.
- *
- * The time (in milliseconds) to wait after powering up the display
- * before asserting its enable pin.
- */
- unsigned int power_to_enable;
-
- /**
- * @delay.disable_to_power_off: Time for the disable to power the display off.
- *
- * The time (in milliseconds) to wait before powering off the display
- * after deasserting its enable pin.
- */
- unsigned int disable_to_power_off;
-
/**
* @delay.enable: Time for the panel to display a valid frame.
*
@@ -363,10 +347,6 @@ static int panel_simple_suspend(struct device *dev)
struct panel_simple *p = dev_get_drvdata(dev);
gpiod_set_value_cansleep(p->enable_gpio, 0);
-
- if (p->desc->delay.disable_to_power_off)
- msleep(p->desc->delay.disable_to_power_off);
-
regulator_disable(p->supply);
p->unprepared_time = ktime_get();
@@ -427,9 +407,6 @@ static int panel_simple_prepare_once(struct panel_simple *p)
return err;
}
- if (p->desc->delay.power_to_enable)
- msleep(p->desc->delay.power_to_enable);
-
gpiod_set_value_cansleep(p->enable_gpio, 1);
delay = p->desc->delay.prepare;
@@ -803,11 +780,6 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc,
break;
}
- if (!panel->enable_gpio && desc->delay.disable_to_power_off)
- dev_warn(dev, "Need a delay after disabling panel GPIO, but a GPIO wasn't provided\n");
- if (!panel->enable_gpio && desc->delay.power_to_enable)
- dev_warn(dev, "Need a delay before enabling panel GPIO, but a GPIO wasn't provided\n");
-
dev_set_drvdata(dev, panel);
/*
--
2.32.0.554.ge1b32706d8-goog
