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drm/vc4: kms: Assign a FIFO to enabled CRTCs instead of active

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The HVS has three FIFOs that can be assigned to a number of PixelValves
through a mux.

However, changing that FIFO requires that we disable and then enable the
pixelvalve, so we want to assign FIFOs to all the enabled CRTCs, and not
just the active ones.

Fixes: 87ebcd42fb ("drm/vc4: crtc: Assign output to channel automatically")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200918145918.101068-1-maxime@cerno.tech
This commit is contained in:
Maxime Ripard 2020-09-18 16:59:17 +02:00
parent 089d834189
commit de19456135
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GPG Key ID: E3EF0D6F671851C5
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/vc4/vc4_kms.c
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@ -643,7 +643,7 @@ vc4_atomic_check(struct drm_device *dev, struct drm_atomic_state *state)
struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
unsigned int matching_channels;
if (!crtc_state->active)
if (!crtc_state->enable)
continue;
/*