[PATCH v3 09/12] drm/panel: 43wvf1g: Remove enabled/prepared state

[Sean Paul]

They're not necessary for atomic drivers, and drm_panel will
WARN if the calls are unbalanced

Signed-off-by: Sean Paul <seanpaul at chromium.org>
---
No changes since v1

 drivers/gpu/drm/panel/panel-seiko-43wvf1g.c | 24 ------------------------
 1 file changed, 24 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c
index 71c09ed436ae..51785774efd1 100644
--- a/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c
+++ b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c
@@ -44,8 +44,6 @@ struct seiko_panel_desc {
 
 struct seiko_panel {
 	struct drm_panel base;
-	bool prepared;
-	bool enabled;
 	const struct seiko_panel_desc *desc;
 	struct backlight_device *backlight;
 	struct regulator *dvdd;
@@ -126,17 +124,12 @@ static int seiko_panel_disable(struct drm_panel *panel)
 {
 	struct seiko_panel *p = to_seiko_panel(panel);
 
-	if (!p->enabled)
-		return 0;
-
 	if (p->backlight) {
 		p->backlight->props.power = FB_BLANK_POWERDOWN;
 		p->backlight->props.state |= BL_CORE_FBBLANK;
 		backlight_update_status(p->backlight);
 	}
 
-	p->enabled = false;
-
 	return 0;
 }
 
@@ -144,9 +137,6 @@ static int seiko_panel_unprepare(struct drm_panel *panel)
 {
 	struct seiko_panel *p = to_seiko_panel(panel);
 
-	if (!p->prepared)
-		return 0;
-
 	regulator_disable(p->avdd);
 
 	/* Add a 100ms delay as per the panel datasheet */
@@ -154,8 +144,6 @@ static int seiko_panel_unprepare(struct drm_panel *panel)
 
 	regulator_disable(p->dvdd);
 
-	p->prepared = false;
-
 	return 0;
 }
 
@@ -164,9 +152,6 @@ static int seiko_panel_prepare(struct drm_panel *panel)
 	struct seiko_panel *p = to_seiko_panel(panel);
 	int err;
 
-	if (p->prepared)
-		return 0;
-
 	err = regulator_enable(p->dvdd);
 	if (err < 0) {
 		dev_err(panel->dev, "failed to enable dvdd: %d\n", err);
@@ -182,8 +167,6 @@ static int seiko_panel_prepare(struct drm_panel *panel)
 		goto disable_dvdd;
 	}
 
-	p->prepared = true;
-
 	return 0;
 
 disable_dvdd:
@@ -195,17 +178,12 @@ static int seiko_panel_enable(struct drm_panel *panel)
 {
 	struct seiko_panel *p = to_seiko_panel(panel);
 
-	if (p->enabled)
-		return 0;
-
 	if (p->backlight) {
 		p->backlight->props.state &= ~BL_CORE_FBBLANK;
 		p->backlight->props.power = FB_BLANK_UNBLANK;
 		backlight_update_status(p->backlight);
 	}
 
-	p->enabled = true;
-
 	return 0;
 }
 
@@ -254,8 +232,6 @@ static int seiko_panel_probe(struct device *dev,
 	if (!panel)
 		return -ENOMEM;
 
-	panel->enabled = false;
-	panel->prepared = false;
 	panel->desc = desc;
 
 	panel->dvdd = devm_regulator_get(dev, "dvdd");
-- 
2.15.0.rc1.287.g2b38de12cc-goog