diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/panel/panel-sitronix-st7701.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7701.c b/drivers/gpu/drm/panel/panel-sitronix-st7701.c index e8491ac3593c..65ee383e62fd 100644 --- a/drivers/gpu/drm/panel/panel-sitronix-st7701.c +++ b/drivers/gpu/drm/panel/panel-sitronix-st7701.c @@ -107,6 +107,8 @@ enum op_bias { OP_BIAS_MAX }; +struct st7701; + struct st7701_panel_desc { const struct drm_display_mode *mode; unsigned int lanes; @@ -129,6 +131,9 @@ struct st7701_panel_desc { const u16 t2d_ns; /* T2D in ns */ const u16 t3d_ns; /* T3D in ns */ const bool eot_en; + + /* GIP sequence, fully custom and undocumented. */ + void (*gip_sequence)(struct st7701 *st7701); }; struct st7701 { @@ -297,7 +302,10 @@ static void st7701_init_sequence(struct st7701 *st7701) ST7701_DSI(st7701, DSI_CMD2_BK1_MIPISET1, DSI_CMD2_BK1_MIPISET1_ONES | (desc->eot_en ? DSI_CMD2_BK1_MIPISET1_EOT_EN : 0)); +} +static void ts8550b_gip_sequence(struct st7701 *st7701) +{ /** * ST7701_SPEC_V1.2 is unable to provide enough information above this * specific command sequence, so grab the same from vendor BSP driver. @@ -319,10 +327,6 @@ static void st7701_init_sequence(struct st7701 *st7701) ST7701_DSI(st7701, 0xEC, 0x00, 0x00); ST7701_DSI(st7701, 0xED, 0xFF, 0xF1, 0x04, 0x56, 0x72, 0x3F, 0xFF, 0xFF, 0xFF, 0xFF, 0xF3, 0x27, 0x65, 0x40, 0x1F, 0xFF); - - /* disable Command2 */ - ST7701_DSI(st7701, DSI_CMD2BKX_SEL, - 0x77, 0x01, 0x00, 0x00, DSI_CMD2BKX_SEL_NONE); } static int st7701_prepare(struct drm_panel *panel) @@ -343,6 +347,13 @@ static int st7701_prepare(struct drm_panel *panel) st7701_init_sequence(st7701); + if (st7701->desc->gip_sequence) + st7701->desc->gip_sequence(st7701); + + /* Disable Command2 */ + ST7701_DSI(st7701, DSI_CMD2BKX_SEL, + 0x77, 0x01, 0x00, 0x00, DSI_CMD2BKX_SEL_NONE); + return 0; } @@ -518,6 +529,7 @@ static const struct st7701_panel_desc ts8550b_desc = { .t2d_ns = 1600, .t3d_ns = 10400, .eot_en = true, + .gip_sequence = ts8550b_gip_sequence, }; static int st7701_dsi_probe(struct mipi_dsi_device *dsi) |