The SOFT_RESET_REBOOT register is needed to recover CS42L42 state after a Soundwire bus reset. Signed-off-by: Richard Fitzgerald <rf@xxxxxxxxxxxxxxxxxxxxx> --- include/sound/cs42l42.h | 5 +++++ sound/soc/codecs/cs42l42.c | 2 ++ 2 files changed, 7 insertions(+) diff --git a/include/sound/cs42l42.h b/include/sound/cs42l42.h index a55d522f1772..9cf4baabea52 100644 --- a/include/sound/cs42l42.h +++ b/include/sound/cs42l42.h @@ -34,6 +34,7 @@ #define CS42L42_PAGE_24 0x2400 #define CS42L42_PAGE_25 0x2500 #define CS42L42_PAGE_26 0x2600 +#define CS42L42_PAGE_27 0x2700 #define CS42L42_PAGE_28 0x2800 #define CS42L42_PAGE_29 0x2900 #define CS42L42_PAGE_2A 0x2A00 @@ -719,6 +720,10 @@ #define CS42L42_SRC_SDOUT_FS (CS42L42_PAGE_26 + 0x09) +/* Page 0x27 DMA */ +#define CS42L42_SOFT_RESET_REBOOT (CS42L42_PAGE_27 + 0x01) +#define CS42L42_SFT_RST_REBOOT_MASK BIT(1) + /* Page 0x28 S/PDIF Registers */ #define CS42L42_SPDIF_CTL1 (CS42L42_PAGE_28 + 0x01) #define CS42L42_SPDIF_CTL2 (CS42L42_PAGE_28 + 0x02) diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index 42cdb051e0fb..440d414efe0a 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -294,6 +294,7 @@ static bool cs42l42_readable_register(struct device *dev, unsigned int reg) case CS42L42_SPDIF_SW_CTL1: case CS42L42_SRC_SDIN_FS: case CS42L42_SRC_SDOUT_FS: + case CS42L42_SOFT_RESET_REBOOT: case CS42L42_SPDIF_CTL1: case CS42L42_SPDIF_CTL2: case CS42L42_SPDIF_CTL3: @@ -358,6 +359,7 @@ static bool cs42l42_volatile_register(struct device *dev, unsigned int reg) case CS42L42_LOAD_DET_DONE: case CS42L42_DET_STATUS1: case CS42L42_DET_STATUS2: + case CS42L42_SOFT_RESET_REBOOT: return true; default: return false; -- 2.30.2
