Am 07.12.20 um 16:57 schrieb Maxime Ripard:
Reported-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Fixes: 63495f6b4aed ("drm/vc4: hdmi: Make sure our clock rate is within limits")
Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx>
Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
--- 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;
-- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Felix Imendörffer
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