diff options
| author | Jerome Anand <jerome.anand@intel.com> | 2017-01-25 01:57:49 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2017-01-25 16:21:47 +0300 |
| commit | eef57324d926f0d8c7a40069e7d26e0cb0651b47 (patch) | |
| tree | 54615ed9cef9d7eeb4be6c42733bf926189236ef /drivers/gpu/drm/i915/i915_drv.h | |
| parent | 7a308bb3016f57e5be11a677d15b821536419d36 (diff) | |
| download | linux-eef57324d926f0d8c7a40069e7d26e0cb0651b47.tar.xz | |
drm/i915: setup bridge for HDMI LPE audio driver
Enable support for HDMI LPE audio mode on Baytrail and
Cherrytrail when HDaudio controller is not detected
Setup minimum required resources during i915_driver_load:
1. Create a platform device to share MMIO/IRQ resources
2. Make the platform device child of i915 device for runtime PM.
3. Create IRQ chip to forward HDMI LPE audio irqs.
HDMI LPE audio driver (a standalone sound driver) probes the
LPE audio device and creates a new sound card.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Jerome Anand <jerome.anand@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 243224aeabf8..c55bf144c4e2 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2136,6 +2136,12 @@ struct drm_i915_private { /* Used to save the pipe-to-encoder mapping for audio */ struct intel_encoder *av_enc_map[I915_MAX_PIPES]; + /* necessary resource sharing with HDMI LPE audio driver. */ + struct { + struct platform_device *platdev; + int irq; + } lpe_audio; + /* * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch * will be rejected. Instead look for a better place. @@ -3390,6 +3396,11 @@ extern int i915_restore_state(struct drm_device *dev); void i915_setup_sysfs(struct drm_i915_private *dev_priv); void i915_teardown_sysfs(struct drm_i915_private *dev_priv); +/* intel_lpe_audio.c */ +int intel_lpe_audio_init(struct drm_i915_private *dev_priv); +void intel_lpe_audio_teardown(struct drm_i915_private *dev_priv); +void intel_lpe_audio_irq_handler(struct drm_i915_private *dev_priv); + /* intel_i2c.c */ extern int intel_setup_gmbus(struct drm_device *dev); extern void intel_teardown_gmbus(struct drm_device *dev); |