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drm/rockchip: dw-dp: add intelace mode support

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Signed-off-by: Zhang Yubing <yubing.zhang@rock-chips.com>
Change-Id: Iea0e6f6843210ef36e9d1781caebdaf18cb3b9c8
This commit is contained in:
Zhang Yubing
2022-05-11 20:19:59 +08:00
committed by Tao Huang
parent 6269118e0a
commit 6ca20ef7dc
1 changed files with 12 additions and 5 deletions
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17
drivers/gpu/drm/rockchip/dw-dp.c
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@@ -2438,9 +2438,11 @@ static bool dw_dp_video_need_vsc_sdp(struct dw_dp *dp, int stream_id)
return false;
}
static int dw_dp_video_set_msa(struct dw_dp *dp, int stream_id, u8 color_format, u8 bpc,
u16 vstart, u16 hstart)
static int dw_dp_video_set_msa(struct dw_dp *dp, struct drm_display_mode *mode, int stream_id,
u8 color_format, u8 bpc)
{
u32 vstart = mode->crtc_vtotal - mode->crtc_vsync_start;
u32 hstart = mode->crtc_htotal - mode->crtc_hsync_start;
u16 misc = 0;
if (dw_dp_video_need_vsc_sdp(dp, stream_id))
@@ -2482,6 +2484,9 @@ static int dw_dp_video_set_msa(struct dw_dp *dp, int stream_id, u8 color_format,
return -EINVAL;
}
if ((mode->flags & DRM_MODE_FLAG_INTERLACE) && !(mode->vtotal % 2))
misc |= DP_MSA_MISC_INTERLACE_VTOTAL_EVEN;
regmap_write(dp->regmap, DPTX_VIDEO_MSA1_N(stream_id),
FIELD_PREP(VSTART, vstart) | FIELD_PREP(HSTART, hstart));
regmap_write(dp->regmap, DPTX_VIDEO_MSA2_N(stream_id), FIELD_PREP(MISC0, misc));
@@ -2674,8 +2679,6 @@ static int dw_dp_video_enable(struct dw_dp *dp, struct dw_dp_video *video, int s
u8 vic;
u32 hactive, hblank, h_sync_width, h_front_porch;
u32 vactive, vblank, v_sync_width, v_front_porch;
u32 vstart = mode->crtc_vtotal - mode->crtc_vsync_start;
u32 hstart = mode->crtc_htotal - mode->crtc_hsync_start;
u32 hblank_interval;
u32 value;
int ret;
@@ -2684,7 +2687,7 @@ static int dw_dp_video_enable(struct dw_dp *dp, struct dw_dp_video *video, int s
if (ret)
return ret;
ret = dw_dp_video_set_msa(dp, stream_id, color_format, bpc, vstart, hstart);
ret = dw_dp_video_set_msa(dp, mode, stream_id, color_format, bpc);
if (ret)
return ret;
@@ -3169,6 +3172,9 @@ dw_dp_bridge_mode_valid(struct drm_bridge *bridge,
if (!dw_dp_bandwidth_ok(dp, &m, min_bpp, link->lanes, link->max_rate))
return MODE_CLOCK_HIGH;
if (m.flags & DRM_MODE_FLAG_DBLCLK)
return MODE_H_ILLEGAL;
return MODE_OK;
}
@@ -4133,6 +4139,7 @@ static int dw_dp_connector_init(struct dw_dp *dp)
connector->polled = DRM_CONNECTOR_POLL_CONNECT |
DRM_CONNECTOR_POLL_DISCONNECT;
connector->ycbcr_420_allowed = true;
connector->interlace_allowed = true;
ret = drm_connector_init(bridge->dev, connector,
&dw_dp_connector_funcs,