Check if sink is HDMI capable when enabling an output. This disables HDMI audio/infoframes if we are talking to a plain DVI sink. All things except this check are already in place.
Signed-off-by: Lucas Stach dev@lynxeye.de --- drivers/gpu/drm/tegra/hdmi.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index e060c7e..3405313 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -660,6 +660,9 @@ static int tegra_output_hdmi_enable(struct tegra_output *output) usleep_range(1000, 2000); tegra_periph_reset_deassert(hdmi->clk);
+ /* if the connected sink is not HDMI capable fall back to plain DVI */ + hdmi->dvi = !drm_detect_hdmi_monitor(output->edid); + tegra_dc_writel(dc, VSYNC_H_POSITION(1), DC_DISP_DISP_TIMING_OPTIONS); tegra_dc_writel(dc, DITHER_CONTROL_DISABLE | BASE_COLOR_SIZE888,