This chain fixes some problems with some previous patches for handling
the ASP1 config registers. The root of the problem is that the ownership
of these registers can be either with the firmware or the driver, and that
the chip has to be soft-reset after downloading the firmware.
This chain adds and uses a regmap_read_bypassed() function so that the
driver can leave the regmap in cache-only until the chip has rebooted,
but still poll a register to detect when the chip has rebooted.
Richard Fitzgerald (4):
regmap: Add regmap_read_bypassed()
ALSA: hda: cs35l56: Exit cache-only after
cs35l56_wait_for_firmware_boot()
ASoC: cs35l56: Fix unintended bus access while resetting amp
ASoC: cs35l56: Prevent overwriting firmware ASP config
drivers/base/regmap/regmap.c | 37 ++++++++++++++
include/linux/regmap.h | 8 +++
include/sound/cs35l56.h | 2 +
sound/pci/hda/cs35l56_hda.c | 4 ++
sound/soc/codecs/cs35l56-sdw.c | 2 -
sound/soc/codecs/cs35l56-shared.c | 83 ++++++++++++++++++++-----------
sound/soc/codecs/cs35l56.c | 26 +++++++++-
7 files changed, 130 insertions(+), 32 deletions(-)
--
2.39.2
On Mon, 08 Apr 2024 11:17:59 +0100, Richard Fitzgerald wrote:
> This chain fixes some problems with some previous patches for handling
> the ASP1 config registers. The root of the problem is that the ownership
> of these registers can be either with the firmware or the driver, and that
> the chip has to be soft-reset after downloading the firmware.
>
> This chain adds and uses a regmap_read_bypassed() function so that the
> driver can leave the regmap in cache-only until the chip has rebooted,
> but still poll a register to detect when the chip has rebooted.
>
> [...]
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
Thanks!
[1/4] regmap: Add regmap_read_bypassed()
commit: 70ee853eec5693fefd8348a2b049d9cb83362e58
[2/4] ALSA: hda: cs35l56: Exit cache-only after cs35l56_wait_for_firmware_boot()
commit: 73580ec607dfe125b140ed30c7c0a074db78c558
[3/4] ASoC: cs35l56: Fix unintended bus access while resetting amp
commit: d4884fd48a44f3d7f0d4d7399b663b69c000233d
[4/4] ASoC: cs35l56: Prevent overwriting firmware ASP config
commit: dfd2ffb373999630a14d7ff614440f1c2fcc704c
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying
to this mail.
Thanks,
Mark