From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Follow the hsw+ approach toggle the audio presence detect
when we set up the ELD, instead of doing it when turning the
port on/off.
This will facilitate audio enable/disable to happen during
fastsets instead of requiring a full modeset.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/g4x_hdmi.c | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/g4x_hdmi.c b/drivers/gpu/drm/i915/display/g4x_hdmi.c
index 9c70245d8b0a..beda6b480bf1 100644
--- a/drivers/gpu/drm/i915/display/g4x_hdmi.c
+++ b/drivers/gpu/drm/i915/display/g4x_hdmi.c
@@ -228,8 +228,6 @@ static void g4x_hdmi_enable_port(struct intel_encoder *encoder,
temp = intel_de_read(dev_priv, intel_hdmi->hdmi_reg);
temp |= SDVO_ENABLE;
- if (pipe_config->has_audio)
- temp |= HDMI_AUDIO_ENABLE;
intel_de_write(dev_priv, intel_hdmi->hdmi_reg, temp);
intel_de_posting_read(dev_priv, intel_hdmi->hdmi_reg);
@@ -240,12 +238,16 @@ static void g4x_hdmi_audio_enable(struct intel_encoder *encoder,
const struct drm_connector_state *conn_state)
{
struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+ struct intel_hdmi *hdmi = enc_to_intel_hdmi(encoder);
if (!crtc_state->has_audio)
return;
drm_WARN_ON(&i915->drm, !crtc_state->has_hdmi_sink);
+ /* Enable audio presence detect */
+ intel_de_rmw(i915, hdmi->hdmi_reg, 0, HDMI_AUDIO_ENABLE);
+
intel_audio_codec_enable(encoder, crtc_state, conn_state);
}
@@ -253,10 +255,16 @@ static void g4x_hdmi_audio_disable(struct intel_encoder *encoder,
const struct intel_crtc_state *old_crtc_state,
const struct drm_connector_state *old_conn_state)
{
+ struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+ struct intel_hdmi *hdmi = enc_to_intel_hdmi(encoder);
+
if (!old_crtc_state->has_audio)
return;
intel_audio_codec_disable(encoder, old_crtc_state, old_conn_state);
+
+ /* Disable audio presence detect */
+ intel_de_rmw(i915, hdmi->hdmi_reg, HDMI_AUDIO_ENABLE, 0);
}
static void g4x_enable_hdmi(struct intel_atomic_state *state,
@@ -282,8 +290,6 @@ static void ibx_enable_hdmi(struct intel_atomic_state *state,
temp = intel_de_read(dev_priv, intel_hdmi->hdmi_reg);
temp |= SDVO_ENABLE;
- if (pipe_config->has_audio)
- temp |= HDMI_AUDIO_ENABLE;
/*
* HW workaround, need to write this twice for issue
@@ -335,8 +341,6 @@ static void cpt_enable_hdmi(struct intel_atomic_state *state,
temp = intel_de_read(dev_priv, intel_hdmi->hdmi_reg);
temp |= SDVO_ENABLE;
- if (pipe_config->has_audio)
- temp |= HDMI_AUDIO_ENABLE;
/*
* WaEnableHDMI8bpcBefore12bpc:snb,ivb
@@ -396,7 +400,7 @@ static void intel_disable_hdmi(struct intel_atomic_state *state,
temp = intel_de_read(dev_priv, intel_hdmi->hdmi_reg);
- temp &= ~(SDVO_ENABLE | HDMI_AUDIO_ENABLE);
+ temp &= ~SDVO_ENABLE;
intel_de_write(dev_priv, intel_hdmi->hdmi_reg, temp);
intel_de_posting_read(dev_priv, intel_hdmi->hdmi_reg);
--
2.41.0
