* [PATCH] ASoC: pm4125-sdw: sort the register default table
@ 2026-08-05 11:39 Peter Ujfalusi
0 siblings, 0 replies; only message in thread
From: Peter Ujfalusi @ 2026-08-05 11:39 UTC (permalink / raw)
To: Mark Brown, Liam Girdwood, Srinivas Kandagatla
Cc: Alexey Klimov, linux-sound, linux-arm-msm, stable
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").
PM4125_SWR_HPHPA_HD2 (0x3090) is listed before
PM4125_ANA_HPHPA_SPARE_CTL (0x308e), which makes the latter unreachable.
regcache_reg_needs_sync() then cannot compare it against its default and
reports that a sync is needed, so it is written to the device on every
regcache_sync() even when it was never touched.
Sort the table by register address.
Fixes: 8ad529484937 ("ASoC: codecs: add new pm4125 audio codec driver")
Cc: stable@vger.kernel.org
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
---
sound/soc/codecs/pm4125-sdw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/codecs/pm4125-sdw.c b/sound/soc/codecs/pm4125-sdw.c
index 1c612ae4a4b2..ee4cde4d8686 100644
--- a/sound/soc/codecs/pm4125-sdw.c
+++ b/sound/soc/codecs/pm4125-sdw.c
@@ -126,8 +126,8 @@ static const struct reg_default pm4125_defaults[] = {
{ PM4125_ANA_HPHPA_FSM_CLK, 0x12 },
{ PM4125_ANA_HPHPA_L_GAIN, 0x00 },
{ PM4125_ANA_HPHPA_R_GAIN, 0x00 },
- { PM4125_SWR_HPHPA_HD2, 0x1B },
{ PM4125_ANA_HPHPA_SPARE_CTL, 0x02 },
+ { PM4125_SWR_HPHPA_HD2, 0x1B },
{ PM4125_ANA_SURGE_EN, 0x38 },
{ PM4125_ANA_COMBOPA_CTL, 0x35 },
{ PM4125_ANA_COMBOPA_CTL_4, 0x84 },
--
2.55.0
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