Tegra DC driver does not call panel_set_backlight, which can
result in absence of backlight on device. Fix this by calling
panel_set_backlight with BACKLIGHT_DEFAULT just after
panel_enable_backlight.
Tested-by: Robert Eckelmann <longnose...@gmail.com> # ASUS TF101 T20
Tested-by: Nicolas Chauvet <kwiz...@gmail.com> # Paz00
Tested-by: Andreas Westman Dorcsak <hed...@yahoo.com> # ASUS TF T30
Tested-by: Svyatoslav Ryhel <clamo...@gmail.com> # LG P895 T30
Signed-off-by: Svyatoslav Ryhel <clamo...@gmail.com>
---
drivers/video/tegra20/tegra-dc.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/video/tegra20/tegra-dc.c b/drivers/video/tegra20/tegra-dc.c
index e279650922..00462fa188 100644
--- a/drivers/video/tegra20/tegra-dc.c
+++ b/drivers/video/tegra20/tegra-dc.c
@@ -4,6 +4,7 @@
*/
#include <common.h>
+#include <backlight.h>
#include <dm.h>
#include <fdtdec.h>
#include <log.h>
@@ -345,6 +346,12 @@ static int tegra_lcd_probe(struct udevice *dev)
return ret;
}
+ ret = panel_set_backlight(priv->panel, BACKLIGHT_DEFAULT);
+ if (ret) {
+ debug("%s: Cannot set backlight to default, ret=%d\n",
__func__, ret);
+ return ret;
+ }
+
mmu_set_region_dcache_behaviour(priv->frame_buffer, plat->size,
DCACHE_WRITETHROUGH);
--
2.37.2
