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drm/bridge/sii8620: fix display of packed pixel modes in MHL2 

Currently packed pixel modes in MHL2 can't be displayed. The device
automatically recognizes output format, so setting format other than
RGB causes failure. Fix it by writing proper values to registers.

Tested on MHL1 and MHL2 using various vendors' dongles both in
DVI and HDMI mode.

Signed-off-by: Maciej Purski <m.purski@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1516706239-9104-1-git-send-email-m.purski@samsung.com
This commit is contained in:
Maciej Purski 2018-01-23 12:17:19 +01:00 committed by Andrzej Hajda
parent 58b3d02f06
commit e8b92efa62
1 changed files with 1 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/gpu/drm/bridge/sil-sii8620.c
View File

@ -1017,20 +1017,11 @@ static void sii8620_stop_video(struct sii8620 *ctx)
static void sii8620_set_format(struct sii8620 *ctx)
{
u8 out_fmt;
if (sii8620_is_mhl3(ctx)) {
sii8620_setbits(ctx, REG_M3_P0CTRL,
BIT_M3_P0CTRL_MHL3_P0_PIXEL_MODE_PACKED,
ctx->use_packed_pixel ? ~0 : 0);
} else {
if (ctx->use_packed_pixel)
sii8620_write_seq_static(ctx,
REG_VID_MODE, BIT_VID_MODE_M1080P,
REG_MHL_TOP_CTL, BIT_MHL_TOP_CTL_MHL_PP_SEL | 1,
REG_MHLTX_CTL6, 0x60
);
else
sii8620_write_seq_static(ctx,
REG_VID_MODE, 0,
REG_MHL_TOP_CTL, 1,
@ -1038,15 +1029,9 @@ static void sii8620_set_format(struct sii8620 *ctx)
);
}
if (ctx->use_packed_pixel)
out_fmt = VAL_TPI_FORMAT(YCBCR422, FULL) |
BIT_TPI_OUTPUT_CSCMODE709;
else
out_fmt = VAL_TPI_FORMAT(RGB, FULL);
sii8620_write_seq(ctx,
REG_TPI_INPUT, VAL_TPI_FORMAT(RGB, FULL),
REG_TPI_OUTPUT, out_fmt,
REG_TPI_OUTPUT, VAL_TPI_FORMAT(RGB, FULL),
);
}