Messages in this thread | | | Date | Mon, 27 Jun 2022 16:10:54 +0200 | Subject | Re: [PATCH] drm/stm: ltdc: disable all layers before crtc shutdown | From | Philippe CORNU <> |
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On 6/3/22 15:41, Yannick Fertre wrote: > All plans must be disabled before the CRTC shutdown helping > the crtc to restart from a clean situation (without unwanted > planes already enable). > > Signed-off-by: Yannick Fertre <yannick.fertre@foss.st.com> > --- > drivers/gpu/drm/stm/ltdc.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c > index 6bd45df8f5a7..eeefc3260c07 100644 > --- a/drivers/gpu/drm/stm/ltdc.c > +++ b/drivers/gpu/drm/stm/ltdc.c > @@ -787,11 +787,17 @@ static void ltdc_crtc_atomic_disable(struct drm_crtc *crtc, > { > struct ltdc_device *ldev = crtc_to_ltdc(crtc); > struct drm_device *ddev = crtc->dev; > + int layer_index = 0; > > DRM_DEBUG_DRIVER("\n"); > > drm_crtc_vblank_off(crtc); > > + /* Disable all layers */ > + for (layer_index = 0; layer_index < ldev->caps.nb_layers; layer_index++) > + regmap_write_bits(ldev->regmap, LTDC_L1CR + layer_index * LAY_OFS, > + LXCR_CLUTEN | LXCR_LEN, 0); > + > /* disable IRQ */ > regmap_clear_bits(ldev->regmap, LTDC_IER, IER_RRIE | IER_FUIE | IER_TERRIE); >
Dear Yannick, Many thanks for your patch, Applied on drm-misc-next. Have a good day Philippe :-)
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