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drm/panel: samsung-atna33xc20: Stop tracking prepared/enabled

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As talked about in commit d2aacaf07395 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.24.Ibb4f923363a27167c480a432e52884b117221974@changeid
This commit is contained in:
Douglas Anderson 2024-05-03 14:33:05 -07:00
parent 2a9487b5aa
commit 5a847750aa
1 changed files with 0 additions and 24 deletions
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24
drivers/gpu/drm/panel/panel-samsung-atna33xc20.c
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@ -25,8 +25,6 @@
struct atana33xc20_panel {
struct drm_panel base;
bool prepared;
bool enabled;
bool el3_was_on;
bool no_hpd;
@ -143,13 +141,8 @@ static int atana33xc20_disable(struct drm_panel *panel)
{
struct atana33xc20_panel *p = to_atana33xc20(panel);
/* Disabling when already disabled is a no-op */
if (!p->enabled)
return 0;
gpiod_set_value_cansleep(p->el_on3_gpio, 0);
p->el_on3_off_time = ktime_get_boottime();
p->enabled = false;
/*
* Keep track of the fact that EL_ON3 was on but we haven't power
@ -173,10 +166,6 @@ static int atana33xc20_enable(struct drm_panel *panel)
{
struct atana33xc20_panel *p = to_atana33xc20(panel);
/* Enabling when already enabled is a no-op */
if (p->enabled)
return 0;
/*
* Once EL_ON3 drops we absolutely need a power cycle before the next
* enable or the backlight will never come on again. The code ensures
@ -195,20 +184,14 @@ static int atana33xc20_enable(struct drm_panel *panel)
atana33xc20_wait(p->powered_on_time, 400);
gpiod_set_value_cansleep(p->el_on3_gpio, 1);
p->enabled = true;
return 0;
}
static int atana33xc20_unprepare(struct drm_panel *panel)
{
struct atana33xc20_panel *p = to_atana33xc20(panel);
int ret;
/* Unpreparing when already unprepared is a no-op */
if (!p->prepared)
return 0;
/*
* Purposely do a put_sync, don't use autosuspend. The panel's tcon
* seems to sometimes crash when you stop giving it data and this is
@ -220,26 +203,19 @@ static int atana33xc20_unprepare(struct drm_panel *panel)
ret = pm_runtime_put_sync_suspend(panel->dev);
if (ret < 0)
return ret;
p->prepared = false;
return 0;
}
static int atana33xc20_prepare(struct drm_panel *panel)
{
struct atana33xc20_panel *p = to_atana33xc20(panel);
int ret;
/* Preparing when already prepared is a no-op */
if (p->prepared)
return 0;
ret = pm_runtime_get_sync(panel->dev);
if (ret < 0) {
pm_runtime_put_autosuspend(panel->dev);
return ret;
}
p->prepared = true;
return 0;
}