From da5eb41763c750d1660ca0a962f15f268821b3e6 Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Tue, 25 Oct 2016 16:42:30 +0100 Subject: [PATCH] ASoC: cs42l56: Make ID registers volatile and remove cache bypass Rather than manually enabling cache bypass when reading the ID registers simply remove the default which will cause the first read to go to the hardware. The old code worked this is simply the more standard way to implement this. Signed-off-by: Charles Keepax Acked-by: Brian Austin Signed-off-by: Mark Brown --- sound/soc/codecs/cs42l56.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/sound/soc/codecs/cs42l56.c b/sound/soc/codecs/cs42l56.c index 54c1768..3e2c046 100644 --- a/sound/soc/codecs/cs42l56.c +++ b/sound/soc/codecs/cs42l56.c @@ -64,8 +64,6 @@ struct cs42l56_private { }; static const struct reg_default cs42l56_reg_defaults[] = { - { 1, 0x56 }, /* r01 - ID 1 */ - { 2, 0x04 }, /* r02 - ID 2 */ { 3, 0x7f }, /* r03 - Power Ctl 1 */ { 4, 0xff }, /* r04 - Power Ctl 2 */ { 5, 0x00 }, /* ro5 - Clocking Ctl 1 */ @@ -1262,8 +1260,6 @@ static int cs42l56_i2c_probe(struct i2c_client *i2c_client, return ret; } - regcache_cache_bypass(cs42l56->regmap, true); - ret = regmap_read(cs42l56->regmap, CS42L56_CHIP_ID_1, ®); devid = reg & CS42L56_CHIP_ID_MASK; if (devid != CS42L56_DEVID) { @@ -1279,8 +1275,6 @@ static int cs42l56_i2c_probe(struct i2c_client *i2c_client, dev_info(&i2c_client->dev, "Alpha Rev %X Metal Rev %X\n", alpha_rev, metal_rev); - regcache_cache_bypass(cs42l56->regmap, false); - if (cs42l56->pdata.ain1a_ref_cfg) regmap_update_bits(cs42l56->regmap, CS42L56_AIN_REFCFG_ADC_MUX, CS42L56_AIN1A_REF_MASK, 1); -- 2.7.4