ASoC: es8316: Don't use ranges based register lookup for a single register

Commit Message

Mark Brown April 19, 2023, 6:45 p.m. UTC

The es8316 driver uses a register range to specify the single volatile
register it has. While the cost will be in the noise this is a bunch of
overhead compared to just having a volatile_reg() callback so switch to
the callback.

Signed-off-by: Mark Brown <[e-mail]>
---
 sound/soc/codecs/es8316.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)


---
base-commit: e8d018dd0257f744ca50a729e3d042cf2ec9da65
change-id: 20230419-asoc-es8316-volatile-5083c880627d

Best regards,

Comments

Mark Brown April 21, 2023, 4:06 p.m. UTC | #1

On Wed, 19 Apr 2023 19:45:06 +0100, Mark Brown wrote:
> The es8316 driver uses a register range to specify the single volatile
> register it has. While the cost will be in the noise this is a bunch of
> overhead compared to just having a volatile_reg() callback so switch to
> the callback.
> 
> 

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: es8316: Don't use ranges based register lookup for a single register
      commit: 2cc3fdcddc86644c070223c522e418416cb7b1a2

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

Patch

diff --git a/sound/soc/codecs/es8316.c b/sound/soc/codecs/es8316.c
index 056c3082fe02..1736a905abdb 100644
--- a/sound/soc/codecs/es8316.c
+++ b/sound/soc/codecs/es8316.c
@@ -803,14 +803,15 @@  static const struct snd_soc_component_driver soc_component_dev_es8316 = {
 	.endianness		= 1,
 };
 
-static const struct regmap_range es8316_volatile_ranges[] = {
-	regmap_reg_range(ES8316_GPIO_FLAG, ES8316_GPIO_FLAG),
-};
-
-static const struct regmap_access_table es8316_volatile_table = {
-	.yes_ranges	= es8316_volatile_ranges,
-	.n_yes_ranges	= ARRAY_SIZE(es8316_volatile_ranges),
-};
+static bool es8316_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case ES8316_GPIO_FLAG:
+		return true;
+	default:
+		return false;
+	}
+}
 
 static const struct regmap_config es8316_regmap = {
 	.reg_bits = 8,
@@ -818,7 +819,7 @@  static const struct regmap_config es8316_regmap = {
 	.use_single_read = true,
 	.use_single_write = true,
 	.max_register = 0x53,
-	.volatile_table	= &es8316_volatile_table,
+	.volatile_reg = es8316_volatile_reg,
 	.cache_type = REGCACHE_RBTREE,
 };