linux_dsm_epyc7002/sound
Rander Wang 570f18b6a8
ASoC:soc-pcm:fix a codec fixup issue in TDM case
On HDaudio platforms, if playback is started when capture is working,
there is no audible output.

This can be root-caused to the use of the rx|tx_mask to store an HDaudio
stream tag.

If capture is stared before playback, rx_mask would be non-zero on HDaudio
platform, then the channel number of playback, which is in the same codec
dai with the capture, would be changed by soc_pcm_codec_params_fixup based
on the tx_mask at first, then overwritten by this function based on rx_mask
at last.

According to the author of tx|rx_mask, tx_mask is for playback and rx_mask
is for capture. And stream direction is checked at all other references of
tx|rx_mask in ASoC, so here should be an error. This patch checks stream
direction for tx|rx_mask for fixup function.

This issue would affect not only HDaudio+ASoC, but also I2S codecs if the
channel number based on rx_mask is not equal to the one for tx_mask. It could
be rarely reproduecd because most drivers in kernel set the same channel number
to tx|rx_mask or rx_mask is zero.

Tested on all platforms using stream_tag & HDaudio and intel I2S platforms.

Signed-off-by: Rander Wang <rander.wang@linux.intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-11 16:50:28 +00:00
..
ac97 ALSA: ac97: fix unbalanced pm_runtime_enable 2018-08-19 18:37:04 +02:00
aoa cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
arm ASoC: pxa: switch to new ac97 bus support 2018-09-10 18:47:58 +01:00
atmel
core ASoC: Fixes for v5.0 2019-01-18 15:17:17 +01:00
drivers ALSA: opl3: Mark expected switch fall-through 2018-08-08 21:40:14 +02:00
firewire ALSA: bebob: fix model-id of unit for Apogee Ensemble 2018-12-19 14:36:35 +01:00
hda ALSA: HDA: export process_unsol_events() 2018-12-19 18:07:18 +01:00
i2c ALSA: i2c/cs8427: Fix int to char conversion 2018-10-18 15:44:08 +02:00
isa Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
mips ALSA: mips: Cleanup indirect PCM helper usages 2018-09-04 12:13:46 +02:00
oss treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
parisc
pci ALSA: hda - Add mute LED support for HP ProBook 470 G5 2019-01-21 15:31:04 +01:00
pcmcia Merge branch 'for-linus' into topic/virmidi 2018-07-29 22:39:29 +02:00
ppc ALSA: aoa: Use of_node_name_eq for node name comparisons 2018-12-06 10:54:54 +01:00
sh
soc ASoC:soc-pcm:fix a codec fixup issue in TDM case 2019-03-11 16:50:28 +00:00
sparc cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
spi
synth ALSA: emux: Fix potential Spectre v1 vulnerabilities 2018-12-13 09:13:04 +01:00
usb ALSA: usb-audio: fix CM6206 register definitions 2019-01-08 22:51:44 +01:00
x86 Merge drm/drm-next into drm-intel-next-queued 2018-11-20 13:14:08 +02:00
xen ALSA: xen-front: Use Xen common shared buffer implementation 2018-12-18 12:19:37 -05:00
ac97_bus.c
Kconfig ALSA: xen-front: Introduce Xen para-virtualized sound frontend driver 2018-05-16 12:58:36 +02:00
last.c
Makefile ALSA: xen-front: Introduce Xen para-virtualized sound frontend driver 2018-05-16 12:58:36 +02:00
sound_core.c sound: Use octal not symbolic permissions 2018-05-28 11:27:20 +02:00