On 05/15/2018 04:42 PM, Neil Armstrong wrote: > This patchs adds the cec_notifier feature to the intel_hdmi part > of the i915 DRM driver. It uses the HDMI DRM connector name to differentiate > between each HDMI ports. > The changes will allow the i915 HDMI code to notify EDID and HPD changes > to an eventual CEC adapter. > > Signed-off-by: Neil Armstrong <narmstr...@baylibre.com>
Reviewed-by: Hans Verkuil <hans.verk...@cisco.com> Thanks! Hans > --- > drivers/gpu/drm/i915/Kconfig | 1 + > drivers/gpu/drm/i915/intel_drv.h | 2 ++ > drivers/gpu/drm/i915/intel_hdmi.c | 12 ++++++++++++ > 3 files changed, 15 insertions(+) > > diff --git a/drivers/gpu/drm/i915/Kconfig b/drivers/gpu/drm/i915/Kconfig > index dfd9588..2d65d56 100644 > --- a/drivers/gpu/drm/i915/Kconfig > +++ b/drivers/gpu/drm/i915/Kconfig > @@ -23,6 +23,7 @@ config DRM_I915 > select SYNC_FILE > select IOSF_MBI > select CRC32 > + select CEC_CORE if CEC_NOTIFIER > help > Choose this option if you have a system that has "Intel Graphics > Media Accelerator" or "HD Graphics" integrated graphics, > diff --git a/drivers/gpu/drm/i915/intel_drv.h > b/drivers/gpu/drm/i915/intel_drv.h > index d436858..b50e51b 100644 > --- a/drivers/gpu/drm/i915/intel_drv.h > +++ b/drivers/gpu/drm/i915/intel_drv.h > @@ -39,6 +39,7 @@ > #include <drm/drm_dp_mst_helper.h> > #include <drm/drm_rect.h> > #include <drm/drm_atomic.h> > +#include <media/cec-notifier.h> > > /** > * __wait_for - magic wait macro > @@ -1001,6 +1002,7 @@ struct intel_hdmi { > bool has_audio; > bool rgb_quant_range_selectable; > struct intel_connector *attached_connector; > + struct cec_notifier *notifier; > }; > > struct intel_dp_mst_encoder; > diff --git a/drivers/gpu/drm/i915/intel_hdmi.c > b/drivers/gpu/drm/i915/intel_hdmi.c > index 1baef4a..e98103d 100644 > --- a/drivers/gpu/drm/i915/intel_hdmi.c > +++ b/drivers/gpu/drm/i915/intel_hdmi.c > @@ -1868,6 +1868,8 @@ intel_hdmi_set_edid(struct drm_connector *connector) > connected = true; > } > > + cec_notifier_set_phys_addr_from_edid(intel_hdmi->notifier, edid); > + > return connected; > } > > @@ -1876,6 +1878,7 @@ intel_hdmi_detect(struct drm_connector *connector, bool > force) > { > enum drm_connector_status status; > struct drm_i915_private *dev_priv = to_i915(connector->dev); > + struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector); > > DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", > connector->base.id, connector->name); > @@ -1891,6 +1894,9 @@ intel_hdmi_detect(struct drm_connector *connector, bool > force) > > intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS); > > + if (status != connector_status_connected) > + cec_notifier_phys_addr_invalidate(intel_hdmi->notifier); > + > return status; > } > > @@ -2031,6 +2037,8 @@ static void chv_hdmi_pre_enable(struct intel_encoder > *encoder, > > static void intel_hdmi_destroy(struct drm_connector *connector) > { > + if (intel_attached_hdmi(connector)->notifier) > + cec_notifier_put(intel_attached_hdmi(connector)->notifier); > kfree(to_intel_connector(connector)->detect_edid); > drm_connector_cleanup(connector); > kfree(connector); > @@ -2358,6 +2366,10 @@ void intel_hdmi_init_connector(struct > intel_digital_port *intel_dig_port, > u32 temp = I915_READ(PEG_BAND_GAP_DATA); > I915_WRITE(PEG_BAND_GAP_DATA, (temp & ~0xf) | 0xd); > } > + > + intel_hdmi->notifier = cec_notifier_get_conn(dev->dev, connector->name); > + if (!intel_hdmi->notifier) > + DRM_DEBUG_KMS("CEC notifier get failed\n"); > } > > void intel_hdmi_init(struct drm_i915_private *dev_priv, >