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Commit dbd751ee authored by Andrzej Hajda's avatar Andrzej Hajda Committed by Thierry Reding
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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: default avatarAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 9c911962

drivers/gpu/drm/panel/panel-ld9040.c

+3 −0
Original line number Diff line number Diff line
@@ -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);