diff options
| author | Richard Fitzgerald <rf@opensource.cirrus.com> | 2023-01-27 16:51:05 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-01-31 12:10:46 +0000 |
| commit | b558c6fd08f59b78166828c342beb2a36258e9fe (patch) | |
| tree | 614ac7c4e5ba84a33603af095b05723b2b461b37 | |
| parent | 43f1a7f905fcc796620c6488a7098068a05484ca (diff) | |
| download | lwn-b558c6fd08f59b78166828c342beb2a36258e9fe.tar.gz lwn-b558c6fd08f59b78166828c342beb2a36258e9fe.zip | |
ASoC: cs42l42: Add SOFT_RESET_REBOOT register
The SOFT_RESET_REBOOT register is needed to recover CS42L42 state after
a Soundwire bus reset.
This is required to be set whenever there is severe/hard bus reset.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230127165111.3010960-3-sbinding@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | include/sound/cs42l42.h | 5 | ||||
| -rw-r--r-- | sound/soc/codecs/cs42l42.c | 2 |
2 files changed, 7 insertions, 0 deletions
diff --git a/include/sound/cs42l42.h b/include/sound/cs42l42.h index 1d1c24fdd0ca..3994e933db19 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 @@ -720,6 +721,10 @@ #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 2fefbcf7bd13..82aa11d6937b 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -293,6 +293,7 @@ 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 @@ 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; |