Messages in this thread Patch in this message | | | From | Maxime Ripard <> | Subject | [PATCH v6 06/10] drm/vc4: crtc: Add some logging | Date | Wed, 7 Jul 2021 10:47:41 +0200 |
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The encoder retrieval code has been a source of bugs and glitches in the past and the crtc <-> encoder association been wrong in a number of different ways.
Add some logging to quickly spot issues if they occur.
Signed-off-by: Maxime Ripard <maxime@cerno.tech> --- drivers/gpu/drm/vc4/vc4_crtc.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index c88ce31ec90f..073b7e528175 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -524,6 +524,9 @@ static void vc4_crtc_atomic_disable(struct drm_crtc *crtc, struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, old_state); struct drm_device *dev = crtc->dev; + drm_dbg(dev, "Disabling CRTC %s (%u) connected to Encoder %s (%u)", + crtc->name, crtc->base.id, encoder->name, encoder->base.id); + require_hvs_enabled(dev); /* Disable vblank irq handling before crtc is disabled. */ @@ -555,6 +558,9 @@ static void vc4_crtc_atomic_enable(struct drm_crtc *crtc, struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, new_state); struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder); + drm_dbg(dev, "Enabling CRTC %s (%u) connected to Encoder %s (%u)", + crtc->name, crtc->base.id, encoder->name, encoder->base.id); + require_hvs_enabled(dev); /* Enable vblank irq handling before crtc is started otherwise -- 2.31.1
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