diff options
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_crtc.c | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c index a0d872f70996..18f5009ce90e 100644 --- a/drivers/gpu/drm/vc4/vc4_crtc.c +++ b/drivers/gpu/drm/vc4/vc4_crtc.c @@ -430,11 +430,10 @@ static void require_hvs_enabled(struct drm_device *dev) } static int vc4_crtc_disable(struct drm_crtc *crtc, + struct drm_encoder *encoder, struct drm_atomic_state *state, unsigned int channel) { - struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state, - drm_atomic_get_old_connector_state); struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder); struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); struct drm_device *dev = crtc->dev; @@ -475,10 +474,29 @@ static int vc4_crtc_disable(struct drm_crtc *crtc, return 0; } +static struct drm_encoder *vc4_crtc_get_encoder_by_type(struct drm_crtc *crtc, + enum vc4_encoder_type type) +{ + struct drm_encoder *encoder; + + drm_for_each_encoder(encoder, crtc->dev) { + struct vc4_encoder *vc4_encoder = to_vc4_encoder(encoder); + + if (vc4_encoder->type == type) + return encoder; + } + + return NULL; +} + 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); + enum vc4_encoder_type encoder_type; + const struct vc4_pv_data *pv_data; + struct drm_encoder *encoder; + unsigned encoder_sel; int channel; if (!(of_device_is_compatible(vc4_crtc->pdev->dev.of_node, @@ -497,7 +515,17 @@ int vc4_crtc_disable_at_boot(struct drm_crtc *crtc) if (channel < 0) return 0; - return vc4_crtc_disable(crtc, NULL, channel); + encoder_sel = VC4_GET_FIELD(CRTC_READ(PV_CONTROL), PV_CONTROL_CLK_SELECT); + if (WARN_ON(encoder_sel != 0)) + return 0; + + pv_data = vc4_crtc_to_vc4_pv_data(vc4_crtc); + encoder_type = pv_data->encoder_types[encoder_sel]; + encoder = vc4_crtc_get_encoder_by_type(crtc, encoder_type); + if (WARN_ON(!encoder)) + return 0; + + return vc4_crtc_disable(crtc, encoder, NULL, channel); } static void vc4_crtc_atomic_disable(struct drm_crtc *crtc, @@ -506,6 +534,8 @@ static void vc4_crtc_atomic_disable(struct drm_crtc *crtc, struct drm_crtc_state *old_state = drm_atomic_get_old_crtc_state(state, crtc); struct vc4_crtc_state *old_vc4_state = to_vc4_crtc_state(old_state); + struct drm_encoder *encoder = vc4_get_crtc_encoder(crtc, state, + drm_atomic_get_old_connector_state); struct drm_device *dev = crtc->dev; require_hvs_enabled(dev); @@ -513,7 +543,7 @@ static void vc4_crtc_atomic_disable(struct drm_crtc *crtc, /* Disable vblank irq handling before crtc is disabled. */ drm_crtc_vblank_off(crtc); - vc4_crtc_disable(crtc, state, old_vc4_state->assigned_channel); + vc4_crtc_disable(crtc, encoder, state, old_vc4_state->assigned_channel); /* * Make sure we issue a vblank event after disabling the CRTC if |