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ASoC: wsa881x: Update read only registers as volatile

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Some of the Bongo read only registers are not set as
volatile. Because of this, register values are read
incorrectly when the driver reads these registers. Fix
this issue by updating read only registers as volatile.

Change-Id: I5775b3e776beeef67874025454a0f232336cc777
Signed-off-by: Vidyakumar Athota <vathota@codeaurora.org>
This commit is contained in:
Vidyakumar Athota 2015-07-31 11:27:42 -07:00 committed by Gerrit - the friendly Code Review server
parent 139176ea57
commit 3cf6401add
1 changed files with 14 additions and 0 deletions
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14
sound/soc/codecs/wsa881x-regmap.c
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@ -176,8 +176,20 @@ static bool wsa881x_readable_register(struct device *dev, unsigned int reg)
static bool wsa881x_volatile_register(struct device *dev, unsigned int reg)
{
switch (reg) {
case WSA881X_CHIP_ID0:
case WSA881X_CHIP_ID1:
case WSA881X_CHIP_ID2:
case WSA881X_CHIP_ID3:
case WSA881X_BUS_ID:
case WSA881X_TEMP_MSB:
case WSA881X_TEMP_LSB:
case WSA881X_SDM_PDM9_LSB:
case WSA881X_SDM_PDM9_MSB:
case WSA881X_OTP_CTRL1:
case WSA881X_INTR_STATUS:
case WSA881X_ATE_TEST_MODE:
case WSA881X_PIN_STATUS:
case WSA881X_SWR_HM_TEST2:
case WSA881X_SPKR_STATUS1:
case WSA881X_SPKR_STATUS2:
case WSA881X_SPKR_STATUS3:
@ -187,9 +199,11 @@ static bool wsa881x_volatile_register(struct device *dev, unsigned int reg)
case WSA881X_OTP_REG_3:
case WSA881X_OTP_REG_4:
case WSA881X_OTP_REG_5:
case WSA881X_OTP_REG_31:
case WSA881X_TEMP_DOUT_MSB:
case WSA881X_TEMP_DOUT_LSB:
case WSA881X_TEMP_OP:
case WSA881X_SPKR_PROT_SAR:
return true;
default:
return false;