Searched hist:"112 a87c4" (Results 1 – 4 of 4) sorted by relevance
/openbmc/linux/drivers/gpu/drm/i915/display/ |
H A D | intel_audio.h | 112a87c4 Thu Oct 21 05:59:15 CDT 2021 Kai Vehmanen <kai.vehmanen@linux.intel.com> drm/i915/display: program audio CDCLK-TS for keepalives
XE_LPD display adds support for display audio codec keepalive feature. This feature works also when display codec is in D3 state and the audio link is off (BCLK off). To enable this functionality, display driver must update the AUD_TS_CDCLK_M/N registers whenever CDCLK is changed. Actual timestamps are generated only when the audio codec driver specifically enables the KeepAlive (KAE) feature.
This patch adds new hooks to intel_set_cdclk() in order to inform display audio driver when CDCLK change is started and when it is complete.
Bspec: 53679 Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Uma Shankar <uma.shankar@intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211021105915.4128635-1-kai.vehmanen@linux.intel.com
|
H A D | intel_audio.c | 112a87c4 Thu Oct 21 05:59:15 CDT 2021 Kai Vehmanen <kai.vehmanen@linux.intel.com> drm/i915/display: program audio CDCLK-TS for keepalives
XE_LPD display adds support for display audio codec keepalive feature. This feature works also when display codec is in D3 state and the audio link is off (BCLK off). To enable this functionality, display driver must update the AUD_TS_CDCLK_M/N registers whenever CDCLK is changed. Actual timestamps are generated only when the audio codec driver specifically enables the KeepAlive (KAE) feature.
This patch adds new hooks to intel_set_cdclk() in order to inform display audio driver when CDCLK change is started and when it is complete.
Bspec: 53679 Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Uma Shankar <uma.shankar@intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211021105915.4128635-1-kai.vehmanen@linux.intel.com
|
H A D | intel_cdclk.c | 112a87c4 Thu Oct 21 05:59:15 CDT 2021 Kai Vehmanen <kai.vehmanen@linux.intel.com> drm/i915/display: program audio CDCLK-TS for keepalives
XE_LPD display adds support for display audio codec keepalive feature. This feature works also when display codec is in D3 state and the audio link is off (BCLK off). To enable this functionality, display driver must update the AUD_TS_CDCLK_M/N registers whenever CDCLK is changed. Actual timestamps are generated only when the audio codec driver specifically enables the KeepAlive (KAE) feature.
This patch adds new hooks to intel_set_cdclk() in order to inform display audio driver when CDCLK change is started and when it is complete.
Bspec: 53679 Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Uma Shankar <uma.shankar@intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211021105915.4128635-1-kai.vehmanen@linux.intel.com
|
/openbmc/linux/drivers/gpu/drm/i915/ |
H A D | i915_reg.h | 112a87c4 Thu Oct 21 05:59:15 CDT 2021 Kai Vehmanen <kai.vehmanen@linux.intel.com> drm/i915/display: program audio CDCLK-TS for keepalives
XE_LPD display adds support for display audio codec keepalive feature. This feature works also when display codec is in D3 state and the audio link is off (BCLK off). To enable this functionality, display driver must update the AUD_TS_CDCLK_M/N registers whenever CDCLK is changed. Actual timestamps are generated only when the audio codec driver specifically enables the KeepAlive (KAE) feature.
This patch adds new hooks to intel_set_cdclk() in order to inform display audio driver when CDCLK change is started and when it is complete.
Bspec: 53679 Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Uma Shankar <uma.shankar@intel.com> Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211021105915.4128635-1-kai.vehmanen@linux.intel.com
|