diff options
| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2019-01-03 13:59:53 +0200 |
|---|---|---|
| committer | Andrzej Hajda <a.hajda@samsung.com> | 2019-01-09 10:49:31 +0100 |
| commit | 7923e09c7a766e2d58de7fc395bb84c18e5bc625 (patch) | |
| tree | 87d0ecb4daaf36596c143931fa4b44d27436bf6f | |
| parent | 51b9e62eb6950c762162ab7eb8390990179be067 (diff) | |
| download | linux-7923e09c7a766e2d58de7fc395bb84c18e5bc625.tar.bz2 | |
drm/bridge: tc358767: fix output H/V syncs
The H and V syncs of the DP output are always set to active high. This
patch fixes the syncs by configuring them according to the videomode.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190103115954.12785-7-tomi.valkeinen@ti.com
| -rw-r--r-- | drivers/gpu/drm/bridge/tc358767.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index a1f3dd2afbb1..391547358756 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -98,6 +98,8 @@ #define DP0_STARTVAL 0x064c #define DP0_ACTIVEVAL 0x0650 #define DP0_SYNCVAL 0x0654 +#define SYNCVAL_HS_POL_ACTIVE_LOW (1 << 15) +#define SYNCVAL_VS_POL_ACTIVE_LOW (1 << 31) #define DP0_MISC 0x0658 #define TU_SIZE_RECOMMENDED (63) /* LSCLK cycles per TU */ #define BPC_6 (0 << 5) @@ -726,7 +728,9 @@ static int tc_set_video_mode(struct tc_data *tc, struct drm_display_mode *mode) tc_write(DP0_ACTIVEVAL, (mode->vdisplay << 16) | (mode->hdisplay)); - tc_write(DP0_SYNCVAL, (vsync_len << 16) | (hsync_len << 0)); + tc_write(DP0_SYNCVAL, (vsync_len << 16) | (hsync_len << 0) | + ((mode->flags & DRM_MODE_FLAG_NHSYNC) ? SYNCVAL_HS_POL_ACTIVE_LOW : 0) | + ((mode->flags & DRM_MODE_FLAG_NVSYNC) ? SYNCVAL_VS_POL_ACTIVE_LOW : 0)); tc_write(DPIPXLFMT, VS_POL_ACTIVE_LOW | HS_POL_ACTIVE_LOW | DE_POL_ACTIVE_HIGH | SUB_CFG_TYPE_CONFIG1 | DPI_BPP_RGB888); |