8 Commits

Author SHA1 Message Date
Charles Keepax
c6d1fa6c8f
misc: cs35l41: Remove unused pdn variable
Remove pdn variable that was made redundant in an earlier patch.

Fixes: c2f14cc2bcdd ("ASoC: cs35l41: Fix use of an uninitialised variable")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210916082346.12001-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-16 14:11:16 +01:00
Charles Keepax
4295c8cc17
ASoC: cs35l41: Fix a bunch of trivial code formating/style issues
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210914141349.30218-6-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-15 13:12:35 +01:00
Charles Keepax
3e60abeb5c
ASoC: cs35l41: Fixup the error messages
It is not idiomatic for ASoC to print the function name in the error
messages, however it is expected to show the return code. Update the
error messages to follow these conventions.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210914141349.30218-5-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-15 13:12:34 +01:00
Charles Keepax
e371eadf2a
ASoC: cs35l41: Don't overwrite returned error code
In multiple places the driver overwrites the error code returned with
a static error code, this is not helpful for debugging. Update to pass
the error codes straight through.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210914141349.30218-4-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-15 13:12:33 +01:00
Charles Keepax
fe1024d504
ASoC: cs35l41: Combine adjacent register writes
cs35l41 is often connected over I2C which is a very slow bus, as such
timings can be greatly improved combining writes where acceptable.
Update several points where the driver does multiple register writes
when a single one would suffice.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210914141349.30218-3-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-15 13:12:32 +01:00
Charles Keepax
3a2eb0b4b0
ASoC: cs35l41: Use regmap_read_poll_timeout to wait for OTP boot
Just clean up the code a little by using the helper rather than open
coding waiting for OTP_BOOT_DONE.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210914141349.30218-2-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-15 13:12:31 +01:00
Charles Keepax
c2f14cc2bc
ASoC: cs35l41: Fix use of an uninitialised variable
The loop checking PDN_DONE doesn't check the return value from
regmap_read, nor does it initialise val. This means if regmap_read fails
val will be checked for the PDN_DONE bit whilst being uninitialised.

Fix this up by switching to regmap_read_poll_timeout which tidies up the
code and avoids the uninitialised variable.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210914141349.30218-1-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-15 13:12:30 +01:00
David Rhodes
6450ef5590
ASoC: cs35l41: CS35L41 Boosted Smart Amplifier
SoC Audio driver for the Cirrus Logic CS35L41 amplifier

Signed-off-by: David Rhodes <drhodes@opensource.cirrus.com>
Tested-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210907225719.2018115-2-drhodes@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-09-13 01:45:11 +01:00