diff options
| author | Lucas Stach <dev@lynxeye.de> | 2012-12-20 01:38:52 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-12-30 08:01:31 +0400 |
| commit | 4049508988a6ad03f51c33bf035bd9b603454830 (patch) | |
| tree | 65e2f7405c513b180819ab4545faaf8c97c040e2 | |
| parent | 8be0e5c427c18a59ce261c496ae2193cbcbafffd (diff) | |
| download | linux-4049508988a6ad03f51c33bf035bd9b603454830.tar.xz | |
drm: tegra: fix front_porch <-> back_porch mixup
Fixes wrong picture offset observed when using HDMI output with a
Technisat HD TV.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Mark Zhang <markz@nvidia.com>
Tested-by: Mark Zhang <markz@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/tegra/dc.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/tegra/hdmi.c | 6 |
2 files changed, 7 insertions, 7 deletions
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index 074410371e2a..54683e430c77 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -102,12 +102,12 @@ static int tegra_dc_set_timings(struct tegra_dc *dc, ((mode->hsync_end - mode->hsync_start) << 0); tegra_dc_writel(dc, value, DC_DISP_SYNC_WIDTH); - value = ((mode->vsync_start - mode->vdisplay) << 16) | - ((mode->hsync_start - mode->hdisplay) << 0); - tegra_dc_writel(dc, value, DC_DISP_BACK_PORCH); - value = ((mode->vtotal - mode->vsync_end) << 16) | ((mode->htotal - mode->hsync_end) << 0); + tegra_dc_writel(dc, value, DC_DISP_BACK_PORCH); + + value = ((mode->vsync_start - mode->vdisplay) << 16) | + ((mode->hsync_start - mode->hdisplay) << 0); tegra_dc_writel(dc, value, DC_DISP_FRONT_PORCH); value = (mode->vdisplay << 16) | mode->hdisplay; diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index ab4016412bbf..81ea934214f1 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -479,7 +479,7 @@ static void tegra_hdmi_setup_avi_infoframe(struct tegra_hdmi *hdmi, return; } - h_front_porch = mode->htotal - mode->hsync_end; + h_front_porch = mode->hsync_start - mode->hdisplay; memset(&frame, 0, sizeof(frame)); frame.r = HDMI_AVI_R_SAME; @@ -634,8 +634,8 @@ static int tegra_output_hdmi_enable(struct tegra_output *output) pclk = mode->clock * 1000; h_sync_width = mode->hsync_end - mode->hsync_start; - h_front_porch = mode->htotal - mode->hsync_end; - h_back_porch = mode->hsync_start - mode->hdisplay; + h_back_porch = mode->htotal - mode->hsync_end; + h_front_porch = mode->hsync_start - mode->hdisplay; err = regulator_enable(hdmi->vdd); if (err < 0) { |