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ASoC: wm8962: set ALC2 as non-volatile register
Previously ALC2 register is set as a volatile register, declare it as one of ALC Coefficients register together with other non-volatile registers will cause issue, in case wm8962 has enter suspend mode, and cache_only flag is set, any attempt to read from ALC2 will fail. Because the 5 status bits in ALC2 aren't used anywhere nor are useful to end user, so this patch removes ALC2 register from volatile register list to make ALC2 be possible to be accessed when cache_only flag is set. Signed-off-by: Jiada Wang <jiada_wang@mentor.com> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -131,7 +131,7 @@ static const struct reg_default wm8962_reg[] = {
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{ 15, 0x6243 }, /* R15 - Software Reset */
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{ 17, 0x007B }, /* R17 - ALC1 */
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{ 18, 0x0000 }, /* R18 - ALC2 */
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{ 19, 0x1C32 }, /* R19 - ALC3 */
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{ 20, 0x3200 }, /* R20 - Noise Gate */
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{ 21, 0x00C0 }, /* R21 - Left ADC volume */
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@ -794,7 +794,6 @@ static bool wm8962_volatile_register(struct device *dev, unsigned int reg)
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case WM8962_CLOCKING1:
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case WM8962_CLOCKING2:
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case WM8962_SOFTWARE_RESET:
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case WM8962_ALC2:
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case WM8962_THERMAL_SHUTDOWN_STATUS:
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case WM8962_ADDITIONAL_CONTROL_4:
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case WM8962_DC_SERVO_6:
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