![]() The current HD-audio code manages the DRM audio power via too complex redirections, and this seems even still unbalanced in a corner case as Intel DRM CI has been intermittently reporting. This patch is a big surgery for addressing the complexity and the possible unbalance. Basically the patch changes the display PM in the following ways: - Both HD-audio controller and codec drivers call a single helper, snd_hdac_display_power(). (Formerly, the display power control from a codec was done indirectly via link_power bus ops.) - snd_hdac_display_power() receives the codec address index. For turning on/off from the controller, pass HDA_CODEC_IDX_CONTROLLER. - snd_hdac_display_power() doesn't manage refcounts any longer, but keeps the power status in bitmap. If any of controller or codecs is turned on, the function updates the DRM power state via get_power() or put_power(). Also this refactor allows us more cleanup: - The link_power bus ops is dropped, so there is no longer indirect management, as mentioned in the above. - hdac_device link_power_control flag is moved to hda_codec display_power_control flag, as it's only for HDA legacy. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106525 Signed-off-by: Takashi Iwai <tiwai@suse.de> |
||
---|---|---|
.. | ||
ext | ||
array.c | ||
hda_bus_type.c | ||
hdac_bus.c | ||
hdac_component.c | ||
hdac_controller.c | ||
hdac_device.c | ||
hdac_i915.c | ||
hdac_regmap.c | ||
hdac_stream.c | ||
hdac_sysfs.c | ||
hdmi_chmap.c | ||
Kconfig | ||
local.h | ||
Makefile | ||
trace.c | ||
trace.h |