From: Mark Brown Date: Wed, 18 May 2016 17:30:39 +0000 (+0100) Subject: ASoC: ak4642: Enable cache usage to fix crashes on resume X-Git-Tag: v4.1.26~20 X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ded044fcdd60ec9fea0e3cc512d85073f88d129b;p=linux ASoC: ak4642: Enable cache usage to fix crashes on resume [ Upstream commit d3030d11961a8c103cf07aed59905276ddfc06c2 ] The ak4642 driver is using a regmap cache sync to restore the configuration of the chip on resume but (as Peter observed) does not actually define a register cache which means that the resume is never going to work and we trigger asserts in regmap. Fix this by enabling caching. Reported-by: Geert Uytterhoeven Reported-by: Peter Ujfalusi Tested-by: Geert Uytterhoeven Signed-off-by: Mark Brown Cc: stable@vger.kernel.org Signed-off-by: Sasha Levin --- diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c index 1cb51372c17a..8e9b76d03f81 100644 --- a/sound/soc/codecs/ak4642.c +++ b/sound/soc/codecs/ak4642.c @@ -550,6 +550,7 @@ static const struct regmap_config ak4642_regmap = { .max_register = FIL1_3, .reg_defaults = ak4642_reg, .num_reg_defaults = NUM_AK4642_REG_DEFAULTS, + .cache_type = REGCACHE_RBTREE, }; static const struct regmap_config ak4643_regmap = { @@ -558,6 +559,7 @@ static const struct regmap_config ak4643_regmap = { .max_register = SPK_MS, .reg_defaults = ak4643_reg, .num_reg_defaults = ARRAY_SIZE(ak4643_reg), + .cache_type = REGCACHE_RBTREE, }; static const struct regmap_config ak4648_regmap = { @@ -566,6 +568,7 @@ static const struct regmap_config ak4648_regmap = { .max_register = EQ_FBEQE, .reg_defaults = ak4648_reg, .num_reg_defaults = ARRAY_SIZE(ak4648_reg), + .cache_type = REGCACHE_RBTREE, }; static const struct ak4642_drvdata ak4642_drvdata = {