[PATCH 17/17] ASoC: rt1318-sdw: sort the register default table

Peter Ujfalusi <[email protected]>
Newsgroups org.kernel.vger.stable,org.kernel.vger.linux-sound
Message-ID <[email protected]>
reg_defaults must be sorted by ascending register address, as
regcache_lookup_reg() locates entries in it with bsearch().  See commit
fd80df352ba1 ("regcache: Add support for sorting defaults arrays").

rt1318_reg_defaults[] is not in address order, so the binary search does
not find 3 of its entries.  regcache_reg_needs_sync() then cannot compare
those against their default and reports that a sync is needed, so they
are written to the device on every regcache_sync() even when they were
never touched.

Sort the table by register address.

Fixes: 6ad73a2b42ea ("ASoC: rt1318: Add RT1318 SDCA vendor-specific driver")
Cc: [email protected]
Signed-off-by: Peter Ujfalusi <[email protected]>
---
 sound/soc/codecs/rt1318-sdw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/rt1318-sdw.c b/sound/soc/codecs/rt1318-sdw.c
index c038ac0e3b76..2f1a776585fc 100644
--- a/sound/soc/codecs/rt1318-sdw.c
+++ b/sound/soc/codecs/rt1318-sdw.c
@@ -235,10 +235,10 @@ static const struct reg_default rt1318_reg_defaults[] = {
 	{ 0xf805, 0x00 },
 	{ 0xf806, 0x07 },
 	{ 0xf807, 0xff },
-	{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_UDMPU21, RT1318_SDCA_CTL_UDMPU_CLUSTER, 0), 0x00 },
 	{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_FU21, RT1318_SDCA_CTL_FU_MUTE, CH_L), 0x01 },
 	{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_FU21, RT1318_SDCA_CTL_FU_MUTE, CH_R), 0x01 },
 	{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_PDE23, RT1318_SDCA_CTL_REQ_POWER_STATE, 0), 0x03 },
+	{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_UDMPU21, RT1318_SDCA_CTL_UDMPU_CLUSTER, 0), 0x00 },
 	{ SDW_SDCA_CTL(FUNC_NUM_SMART_AMP, RT1318_SDCA_ENT_CS21, RT1318_SDCA_CTL_SAMPLE_FREQ_INDEX, 0), 0x09 },
 };
 
-- 
2.55.0
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.