[PATCH v5 3/9] drm/vc4: hdmi: Take into account the clock doubling flag in atomic_check
flat view
STALE2132d
From: Maxime Ripard <hidden>
Date: 2020-12-07 15:59:20
Also in:
dri-devel
Subsystem:
drm drivers, drm drivers and misc gpu patches, drm drivers for vc4, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Dave Stevenson, Linus Torvalds
Reported-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 63495f6b4aed ("drm/vc4: hdmi: Make sure our clock rate is within limits")
Signed-off-by: Maxime Ripard <redacted>
---
drivers/gpu/drm/vc4/vc4_hdmi.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 5a608ed1d75e..a88aa20beeb6 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c@@ -796,6 +796,9 @@ static int vc4_hdmi_encoder_atomic_check(struct drm_encoder *encoder, pixel_rate = mode->clock * 1000; } + if (mode->flags & DRM_MODE_FLAG_DBLCLK) + pixel_rate = pixel_rate * 2; + if (pixel_rate > vc4_hdmi->variant->max_pixel_clock) return -EINVAL;
--
2.28.0
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