diff options
Diffstat (limited to 'drivers/gpu/drm/vc4')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_hdmi.c | 16 | ||||
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_hdmi.h | 6 |
2 files changed, 18 insertions, 4 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index 0adaa6f7eaef..34ac8ad13698 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -725,6 +725,11 @@ static void vc4_hdmi_encoder_post_crtc_powerdown(struct drm_encoder *encoder, static void vc4_hdmi_encoder_disable(struct drm_encoder *encoder) { + struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); + + mutex_lock(&vc4_hdmi->mutex); + vc4_hdmi->output_enabled = false; + mutex_unlock(&vc4_hdmi->mutex); } static void vc4_hdmi_csc_setup(struct vc4_hdmi *vc4_hdmi, bool enable) @@ -1218,6 +1223,11 @@ static void vc4_hdmi_encoder_post_crtc_enable(struct drm_encoder *encoder, static void vc4_hdmi_encoder_enable(struct drm_encoder *encoder) { + struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder); + + mutex_lock(&vc4_hdmi->mutex); + vc4_hdmi->output_enabled = true; + mutex_unlock(&vc4_hdmi->mutex); } static void vc4_hdmi_encoder_atomic_mode_set(struct drm_encoder *encoder, @@ -1397,14 +1407,12 @@ static inline struct vc4_hdmi *dai_to_hdmi(struct snd_soc_dai *dai) static bool vc4_hdmi_audio_can_stream(struct vc4_hdmi *vc4_hdmi) { - struct drm_encoder *encoder = &vc4_hdmi->encoder.base.base; - lockdep_assert_held(&vc4_hdmi->mutex); /* - * The encoder doesn't have a CRTC until the first modeset. + * If the controller is disabled, prevent any ALSA output. */ - if (!encoder->crtc) + if (!vc4_hdmi->output_enabled) return false; /* diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index a43cc5614d19..5d3e97703e8d 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -203,6 +203,12 @@ struct vc4_hdmi { * for use by ALSA hooks and interrupt handlers. Protected by @mutex. */ struct drm_display_mode saved_adjusted_mode; + + /** + * @output_enabled: Is the HDMI controller currently active? + * Protected by @mutex. + */ + bool output_enabled; }; static inline struct vc4_hdmi * |