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authorAndrzej Hajda2014-04-08 12:58:05 +0200
committerThierry Reding2014-06-05 16:46:39 +0200
commitdbd751eed83614b7300a0331ae3ab2e70cc1e73c (patch)
tree148bcf5b9a9165f2e775a25fb1347ffa361b92f5 /drivers/gpu/drm/panel
parentdrm/panel: s6e8aa0: silence array overflow warning (diff)
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drm/panel: ld9040: add power control sequence
Some ld9040 panels do not start without providing power control sequence during initialization. The patch fixes the driver by providing such sequence for all panels. Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/panel')
-rw-r--r--drivers/gpu/drm/panel/panel-ld9040.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panel/panel-ld9040.c b/drivers/gpu/drm/panel/panel-ld9040.c
index 1f1f8371a199..db1601fdbe29 100644
--- a/drivers/gpu/drm/panel/panel-ld9040.c
+++ b/drivers/gpu/drm/panel/panel-ld9040.c
@@ -27,6 +27,7 @@
#define MCS_ELVSS_ON 0xb1
#define MCS_USER_SETTING 0xf0
#define MCS_DISPCTL 0xf2
+#define MCS_POWER_CTRL 0xf4
#define MCS_GTCON 0xf7
#define MCS_PANEL_CONDITION 0xf8
#define MCS_GAMMA_SET1 0xf9
@@ -182,6 +183,8 @@ static void ld9040_init(struct ld9040 *ctx)
ld9040_dcs_write_seq_static(ctx, MCS_DISPCTL,
0x02, 0x08, 0x08, 0x10, 0x10);
ld9040_dcs_write_seq_static(ctx, MCS_MANPWR, 0x04);
+ ld9040_dcs_write_seq_static(ctx, MCS_POWER_CTRL,
+ 0x0a, 0x87, 0x25, 0x6a, 0x44, 0x02, 0x88);
ld9040_dcs_write_seq_static(ctx, MCS_ELVSS_ON, 0x0d, 0x00, 0x16);
ld9040_dcs_write_seq_static(ctx, MCS_GTCON, 0x09, 0x00, 0x00);
ld9040_brightness_set(ctx);