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Commit ffb63c95 authored by Tomi Valkeinen's avatar Tomi Valkeinen Committed by Tomi Valkeinen
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OMAP: DSS2: Taal: Optimize enable_te, rotate, mirror when value unchanged 



Skip any further processing of taal_enable_te(), taal_rotate(), and
taal_mirror() if value remains unchanged.

Signed-off-by: default avatarJani Nikula <ext-jani.1.nikula@nokia.com>
Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@nokia.com>
parent a602771c

drivers/video/omap2/displays/panel-taal.c

+15 −0
Original line number Diff line number Diff line
@@ -1210,6 +1210,10 @@ static int taal_enable_te(struct omap_dss_device *dssdev, bool enable) 
	int r;



	mutex_lock(&td->lock);



	if (td->te_enabled == enable)

		goto end;



	dsi_bus_lock();



	if (td->enabled) {
@@ -1221,6 +1225,7 @@ static int taal_enable_te(struct omap_dss_device *dssdev, bool enable) 
	td->te_enabled = enable;



	dsi_bus_unlock();

end:

	mutex_unlock(&td->lock);



	return 0;
@@ -1251,6 +1256,10 @@ static int taal_rotate(struct omap_dss_device *dssdev, u8 rotate) 
	dev_dbg(&dssdev->dev, "rotate %d\n", rotate);



	mutex_lock(&td->lock);



	if (td->rotate == rotate)

		goto end;



	dsi_bus_lock();



	if (td->enabled) {
@@ -1262,6 +1271,7 @@ static int taal_rotate(struct omap_dss_device *dssdev, u8 rotate) 
	td->rotate = rotate;



	dsi_bus_unlock();

end:

	mutex_unlock(&td->lock);

	return 0;

err:
@@ -1290,6 +1300,10 @@ static int taal_mirror(struct omap_dss_device *dssdev, bool enable) 
	dev_dbg(&dssdev->dev, "mirror %d\n", enable);



	mutex_lock(&td->lock);



	if (td->mirror == enable)

		goto end;



	dsi_bus_lock();

	if (td->enabled) {

		r = taal_set_addr_mode(td->rotate, enable);
@@ -1300,6 +1314,7 @@ static int taal_mirror(struct omap_dss_device *dssdev, bool enable) 
	td->mirror = enable;



	dsi_bus_unlock();

end:

	mutex_unlock(&td->lock);

	return 0;

err: