On Tue, 26 Apr 2016 10:02:50 +0200, Takashi Iwai wrote: > > The recent bug report suggests that BCLK setup for i915 HSW/BDW needs > to be updated at each HDMI hotplug, not only at initialization and > resume. That is, we need to update HSW_EM4 and HSW_EM5 registers at > ELD notification, too. Otherwise the HDMI audio may be out of sync > and played in a wrong pitch. > > However, the HDA codec driver has no access to the controller > registers, and currently the code managing these registers is in > hda_intel.c, i.e. local to the controller driver. For allowing the > explicit BCLK update from the codec driver, as in this patch, the > former haswell_set_bclk() in hda_intel.c is moved to hdac_i915.c and > exposed as snd_hdac_i915_set_bclk(). This is called from both the HDA > controller driver and intel_pin_eld_notify() in HDMI codec driver. > > Along with this change, snd_hdac_get_display_clk() gets dropped as > it's no longer used. > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91410 > Cc: <stable@xxxxxxxxxxxxxxx> # v4.5+ > Signed-off-by: Takashi Iwai <tiwai@xxxxxxx> Oops, this is an old patch. The latest one will be submitted soon. Sorry for the noise. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
