diff options
| author | Vijendar Mukunda <Vijendar.Mukunda@amd.com> | 2025-06-23 14:14:55 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-06 11:04:14 +0200 |
| commit | 90133b12243c44ba87496b0a8d33a4469ea95303 (patch) | |
| tree | 66b5aa731665f157b03df87854e10a29cbcfd07e /tools/perf/scripts/python | |
| parent | ede31ad949ae0d03cb4c5edd79991586ad7c8bb8 (diff) | |
ASoC: amd: ps: fix for soundwire failures during hibernation exit sequence
[ Upstream commit dc6458ed95e40146699f9c523e34cb13ff127170 ]
During the hibernate entry sequence, ACP registers will be reset to
default values and acp ip will be completely powered off including acp
SoundWire pads. During resume sequence, if acp SoundWire pad keeper enable
register is not restored along with pad pulldown control register value,
then SoundWire manager links won't be powered on correctly results in
peripheral register access failures and completely audio function is
broken.
Add code to store the acp SoundWire pad keeper enable register and acp pad
pulldown ctrl register values before entering into suspend state and
restore the register values during resume sequence based on condition check
for acp SoundWire pad keeper enable register for ACP6.3, ACP7.0 & ACP7.1
platforms.
Fixes: 491628388005 ("ASoC: amd: ps: add callback functions for acp pci driver pm ops")
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://patch.msgid.link/20250623084630.3100279-1-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions