diff mbox series

[13/15] ASoC: rt5682-sdw: set regcache_cache_only false before reading RT5682_DEVICE_ID

Message ID 20210607222239.582139-14-pierre-louis.bossart@linux.intel.com (mailing list archive)
State Accepted
Commit c0372bc873dd29f325ee908351e0bd5b08d4d608
Headers show
Series ASoC: fixes for SoundWire codec drivers | expand

Commit Message

Pierre-Louis Bossart June 7, 2021, 10:22 p.m. UTC 
From: Bard Liao <yung-chuan.liao@linux.intel.com>

RT5682_DEVICE_ID is a volatile register, we can not read it in cache
only mode.

Fixes: 03f6fc6de919 ("ASoC: rt5682: Add the soundwire support")
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
---
 sound/soc/codecs/rt5682-sdw.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/sound/soc/codecs/rt5682-sdw.c b/sound/soc/codecs/rt5682-sdw.c
index 529a85fd0a00..54873730bec5 100644
--- a/sound/soc/codecs/rt5682-sdw.c
+++ b/sound/soc/codecs/rt5682-sdw.c
@@ -400,6 +400,11 @@  static int rt5682_io_init(struct device *dev, struct sdw_slave *slave)
 
 	pm_runtime_get_noresume(&slave->dev);
 
+	if (rt5682->first_hw_init) {
+		regcache_cache_only(rt5682->regmap, false);
+		regcache_cache_bypass(rt5682->regmap, true);
+	}
+
 	while (loop > 0) {
 		regmap_read(rt5682->regmap, RT5682_DEVICE_ID, &val);
 		if (val == DEVICE_ID)
@@ -415,11 +420,6 @@  static int rt5682_io_init(struct device *dev, struct sdw_slave *slave)
 		goto err_nodev;
 	}
 
-	if (rt5682->first_hw_init) {
-		regcache_cache_only(rt5682->regmap, false);
-		regcache_cache_bypass(rt5682->regmap, true);
-	}
-
 	rt5682_calibrate(rt5682);
 
 	if (rt5682->first_hw_init) {