Unverified Commit 3e29fb74 authored by Srinivas Kandagatla's avatar Srinivas Kandagatla Committed by Mark Brown
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ASoC: codecs: wsa883x: add clock stop support 



WSA883x does support clock stop, so remove code that reset
the Codec during runtime pm suspend and add flag to mark
clock stop support.

Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220906170112.1984-7-srinivas.kandagatla@linaro.org


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent c1057a08

sound/soc/codecs/wsa883x.c

+1 −27
Original line number Diff line number Diff line
@@ -415,7 +415,6 @@ 


#define WSA883X_NUM_REGISTERS           (WSA883X_EMEM_63 + 1)

#define WSA883X_MAX_REGISTER            (WSA883X_NUM_REGISTERS - 1)

#define WSA883X_PROBE_TIMEOUT 1000



#define WSA883X_VERSION_1_0 0

#define WSA883X_VERSION_1_1 1
@@ -1409,6 +1408,7 @@ static int wsa883x_probe(struct sdw_slave *pdev, 
	wsa883x->sconfig.type = SDW_STREAM_PDM;



	pdev->prop.sink_ports = GENMASK(WSA883X_MAX_SWR_PORTS, 0);

	pdev->prop.simple_clk_stop_capable = true;

	pdev->prop.sink_dpn_prop = wsa_sink_dpn_prop;

	pdev->prop.scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;

	gpiod_direction_output(wsa883x->sd_n, 1);
@@ -1440,43 +1440,17 @@ static int wsa883x_probe(struct sdw_slave *pdev, 
static int __maybe_unused wsa883x_runtime_suspend(struct device *dev)

{

	struct regmap *regmap = dev_get_regmap(dev, NULL);

	struct wsa883x_priv *wsa883x = dev_get_drvdata(dev);



	gpiod_direction_output(wsa883x->sd_n, 0);



	regcache_cache_only(regmap, true);

	regcache_mark_dirty(regmap);



	regulator_disable(wsa883x->vdd);

	return 0;

}



static int __maybe_unused wsa883x_runtime_resume(struct device *dev)

{

	struct sdw_slave *slave = dev_to_sdw_dev(dev);

	struct regmap *regmap = dev_get_regmap(dev, NULL);

	struct wsa883x_priv *wsa883x = dev_get_drvdata(dev);

	unsigned long time;

	int ret;



	ret = regulator_enable(wsa883x->vdd);

	if (ret) {

		dev_err(dev, "Failed to enable vdd regulator (%d)\n", ret);

		return ret;

	}



	gpiod_direction_output(wsa883x->sd_n, 1);



	time = wait_for_completion_timeout(&slave->initialization_complete,

					   msecs_to_jiffies(WSA883X_PROBE_TIMEOUT));

	if (!time) {

		dev_err(dev, "Initialization not complete, timed out\n");

		gpiod_direction_output(wsa883x->sd_n, 0);

		regulator_disable(wsa883x->vdd);

		return -ETIMEDOUT;

	}



	usleep_range(20000, 20010);

	regcache_cache_only(regmap, false);

	regcache_sync(regmap);