| From 52251e8121d76dc581dc86bc779686f4d161efa5 Mon Sep 17 00:00:00 2001 |
| From: Tomi Valkeinen <tomi.valkeinen@ti.com> |
| Date: Thu, 3 Jan 2019 13:59:53 +0200 |
| Subject: drm/bridge: tc358767: fix output H/V syncs |
| |
| [ Upstream commit 7923e09c7a766e2d58de7fc395bb84c18e5bc625 ] |
| |
| 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 |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| drivers/gpu/drm/bridge/tc358767.c | 6 +++++- |
| 1 file changed, 5 insertions(+), 1 deletion(-) |
| |
| diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c |
| index 16fa42984c50..fa3f2f039a74 100644 |
| --- a/drivers/gpu/drm/bridge/tc358767.c |
| +++ b/drivers/gpu/drm/bridge/tc358767.c |
| @@ -96,6 +96,8 @@ |
| #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) |
| @@ -724,7 +726,9 @@ 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); |
| -- |
| 2.19.1 |
| |
