[PATCH v2 2/2] drm: tegra: check HDMI sink capability
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From: Lucas Stach <hidden>
Date: 2013-01-16 14:36:42
Also in:
dri-devel
Subsystem:
drm drivers, drm drivers for nvidia tegra, the rest · Maintainers:
David Airlie, Simona Vetter, Thierry Reding, Mikko Perttunen, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2013-01-16 · Re: [PATCH v2 2/2] drm: tegra: check HDMI sink capability · Jon Mayo <hidden>
- 2013-01-16 · Re: [PATCH v2 2/2] drm: tegra: check HDMI sink capability · Thierry Reding <hidden>
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 <redacted> --- 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,
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1.8.0.2