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drm/rockchip: update pre dither down config

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between vop big and hdmi/edp/dp connect mode is 10bit, so we disable
pre dither down, otherwise enable pre dither down.

Change-Id: If18ed05647d2eb3c6d5c159dd365ea66e55cd408
Signed-off-by: Huang Jiachai <hjc@rock-chips.com>
This commit is contained in:
Huang Jiachai
2016-12-12 15:18:44 +08:00
committed by Huang, Tao
parent d118955910
commit 998cc9d887
1 changed files with 6 additions and 4 deletions
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10
drivers/gpu/drm/rockchip/rockchip_drm_vop.c
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@@ -1435,19 +1435,21 @@ static void vop_crtc_enable(struct drm_crtc *crtc)
VOP_CTRL_SET(vop, out_mode, s->output_mode);
switch (s->bus_format) {
case MEDIA_BUS_FMT_RGB565_1X16:
val = DITHER_DOWN_EN(1) | DITHER_DOWN_MODE(RGB888_TO_RGB565) |
PRE_DITHER_DOWN_EN(1);
val = DITHER_DOWN_EN(1) | DITHER_DOWN_MODE(RGB888_TO_RGB565);
break;
case MEDIA_BUS_FMT_RGB666_1X18:
case MEDIA_BUS_FMT_RGB666_1X24_CPADHI:
val = DITHER_DOWN_EN(1) | DITHER_DOWN_MODE(RGB888_TO_RGB666) |
PRE_DITHER_DOWN_EN(1);
val = DITHER_DOWN_EN(1) | DITHER_DOWN_MODE(RGB888_TO_RGB666);
break;
case MEDIA_BUS_FMT_RGB888_1X24:
default:
val = DITHER_DOWN_EN(0) | PRE_DITHER_DOWN_EN(0);
break;
}
if (s->output_mode == ROCKCHIP_OUT_MODE_AAAA)
val |= PRE_DITHER_DOWN_EN(0);
else
val |= PRE_DITHER_DOWN_EN(1);
val |= DITHER_DOWN_MODE_SEL(DITHER_DOWN_ALLEGRO);
VOP_CTRL_SET(vop, dither_down, val);