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 --- Captions are a bit confusing here. As the porch is always relative to the sync pulse, the left picture margin is actually the back_porch. --- drivers/gpu/drm/tegra/dc.c | 8 ++++---- drivers/gpu/drm/tegra/hdmi.c | 6 +++--- 2 Dateien geändert, 7 Zeilen hinzugefügt(+), 7 Zeilen entfernt(-)
diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index 0744103..54683e4 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 ab40164..81ea934 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) {