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  1. 15 Jun, 2015 2 commits
    • Takashi Iwai's avatar
      ALSA: hda - Fix audio crackles on Dell Latitude E7x40 · 8b99aba7
      Takashi Iwai authored 
      We still got a report that the audio crackles and noises occur with
the recent 4.1 kernels on Dell machines.  These machines seem to need
similar workarounds that have been applied to the recent Dell XPS 13
models.  Since the codec of these machines (Dell Latitute E7240 and
E7440) is different from XPS 13's one, we need a new fixup entry.

Also, it was confirmed that the previous workaround to disable the
widget power-save (commit [219f47e4: ALSA: hda - Disable widget
power-saving for ALC292 & co]) is no longer needed after this fix.
So, this patch includes the partial revert of the commit, too.
Reported-and-tested-by: default avatarMihai Donțu <mihai.dontu@gmail.com>
Tested-by: default avatarJonathan McDowell <noodles@earth.li>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      8b99aba7
    • Hui Wang's avatar
      ALSA: hda - adding a DAC/pin preference map for a HP Envy TS machine · 6ab42ff4
      Hui Wang authored 
      On a HP Envy TouchSmart laptop, there are 2 speakers (main speaker
and subwoofer speaker), 1 headphone and 2 DACs, without this fixup,
the headphone will be assigned to a DAC and the 2 speakers will be
assigned to another DAC, this assignment makes the surround-2.1
channels invalid.

To fix it, here using a DAC/pin preference map to bind the main
speaker to 1 DAC and the subwoofer speaker will be assigned to another
DAC.

Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarHui Wang <hui.wang@canonical.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      6ab42ff4
  3. 12 Jun, 2015 1 commit
    • Takashi Iwai's avatar
      ALSA: hda - Abort the probe without i915 binding for HSW/BDW · 535115b5
      Takashi Iwai authored 
      The previous patch tried to continue the probe if i915 binding fails.
For for simplicity reason, we haven't implemented abort even for
controller chips that are dedicated for HDMI/DP on HSW and BDW.
However, Mengdong suggested that this can be dangerous; BIOS may
disable gfx power well although the PCI entry for HD-audio is left,
and this may result in the unexpected behavior, kernel errors, etc.

For avoiding this situation, abort the probe at i915 binding failure
only for HSW/BDW chips selectively.  For other chips, it still
continues.

Fixes: bf06848b ('ALSA: hda - Continue probing even if i915 binding fails')
Reported-by: default avatarMengdong Lin <mengdong.lin@intel.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      535115b5
  5. 11 Jun, 2015 2 commits
    • Takashi Iwai's avatar
      ALSA: hda - Re-add the lost fake mute support · a686ec4c
      Takashi Iwai authored 
      Yet another regression by the transition to regmap cache; for better
usability, we had the fake mute control using the zero amp value for
Conexant codecs, and this was forgotten in the new hda core code.

Since the bits 4-7 are unused for the amp registers (as we follow the
syntax of AMP_GET verb), the bit 4 is now used to indicate the fake
mute.  For setting this flag, snd_hda_codec_amp_update() becomes a
function from a simple macro.  The bonus is that it gained a proper
function description.
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      a686ec4c
    • Takashi Iwai's avatar
      ALSA: hda - Continue probing even if i915 binding fails · bf06848b
      Takashi Iwai authored 
      Currently snd-hda-intel driver aborts the probing of Intel HD-audio
controller with i915 power well management when binding with i915
driver via hda_i915_init() fails.  This is no big problem for Haswell
and Broadwell where the HD-audio controllers are dedicated to
HDMI/DP, thus i915 link is mandatory.  However, Skylake, Baytrail and
Braswell have only one controller and both HDMI/DP and analog codecs
share the same bus.  Thus, even if HDMI/DP isn't usable, we should
keep the controller working for other codecs.

For fixing this, this patch simply allows continuing the probing even
if hda_i915_init() call fails.  This may leave stale sound components
for HDMI/DP devices that are unbound with graphics.  We could abort
the probing selectively, but from the code simplicity POV, it's better
to continue in all cases.
Reported-by: default avatarLibin Yang <libin.yang@intel.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      bf06848b
  7. 10 Jun, 2015 1 commit
    • Takashi Iwai's avatar
      ALSA: hda - Don't actually write registers for caps overwrites · 98a226ed
      Takashi Iwai authored 
      Along with the transition to regmap for managing the cached parameter
reads, the caps overwrite was also moved to regmap cache.  The cache
change itself works, but it still tries to write the non-existing verb
(the HDA parameter is read-only) wrongly.  It's harmless in most
cases, but some chips are picky and may result in the codec
communication stall.

This patch avoids it just by adding the missing flag check in
reg_write ops.
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      98a226ed
  9. 09 Jun, 2015 1 commit
  11. 08 Jun, 2015 1 commit
  13. 03 Jun, 2015 2 commits
  15. 02 Jun, 2015 1 commit
  17. 31 May, 2015 1 commit
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  25. 27 May, 2015 3 commits
  27. 26 May, 2015 1 commit
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  31. 20 May, 2015 3 commits
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  35. 18 May, 2015 4 commits
  37. 12 May, 2015 6 commits
  39. 11 May, 2015 1 commit
  41. 10 May, 2015 1 commit
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