diff options
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_crtc.c | 25 | ||||
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_drv.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_drv.h | 1 |
3 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index 4156c5f66877..dfac304fe2b0 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -427,6 +427,31 @@ static int vc4_crtc_disable(struct drm_crtc *crtc, unsigned int channel) return 0; } +int vc4_crtc_disable_at_boot(struct drm_crtc *crtc) +{ + struct drm_device *drm = crtc->dev; + struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); + int channel; + + if (!(of_device_is_compatible(vc4_crtc->pdev->dev.of_node, + "brcm,bcm2711-pixelvalve2") || + of_device_is_compatible(vc4_crtc->pdev->dev.of_node, + "brcm,bcm2711-pixelvalve4"))) + return 0; + + if (!(CRTC_READ(PV_CONTROL) & PV_CONTROL_EN)) + return 0; + + if (!(CRTC_READ(PV_V_CONTROL) & PV_VCONTROL_VIDEN)) + return 0; + + channel = vc4_hvs_get_fifo_from_output(drm, vc4_crtc->data->hvs_output); + if (channel < 0) + return 0; + + return vc4_crtc_disable(crtc, channel); +} + static void vc4_crtc_atomic_disable(struct drm_crtc *crtc, struct drm_crtc_state *old_state) { diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c index 38343d2fb4fb..9567d1019212 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.c +++ b/drivers/gpu/drm/vc4/vc4_drv.c @@ -252,6 +252,7 @@ static int vc4_drm_bind(struct device *dev) struct drm_device *drm; struct vc4_dev *vc4; struct device_node *node; + struct drm_crtc *crtc; int ret = 0; dev->coherent_dma_mask = DMA_BIT_MASK(32); @@ -298,6 +299,9 @@ static int vc4_drm_bind(struct device *dev) if (ret < 0) goto unbind_all; + drm_for_each_crtc(crtc, drm) + vc4_crtc_disable_at_boot(crtc); + ret = drm_dev_register(drm, 0); if (ret < 0) goto unbind_all; diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index 860be019d8e3..1a97545b9244 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -813,6 +813,7 @@ void vc4_bo_remove_from_purgeable_pool(struct vc4_bo *bo); /* vc4_crtc.c */ extern struct platform_driver vc4_crtc_driver; +int vc4_crtc_disable_at_boot(struct drm_crtc *crtc); int vc4_crtc_init(struct drm_device *drm, struct vc4_crtc *vc4_crtc, const struct drm_crtc_funcs *crtc_funcs, const struct drm_crtc_helper_funcs *crtc_helper_funcs); |