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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>
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@ -34,6 +34,7 @@
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#define CS42L42_PAGE_24 0x2400
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#define CS42L42_PAGE_25 0x2500
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#define CS42L42_PAGE_26 0x2600
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#define CS42L42_PAGE_27 0x2700
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#define CS42L42_PAGE_28 0x2800
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#define CS42L42_PAGE_29 0x2900
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#define CS42L42_PAGE_2A 0x2A00
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@ -720,6 +721,10 @@
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#define CS42L42_SRC_SDOUT_FS (CS42L42_PAGE_26 + 0x09)
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/* Page 0x27 DMA */
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#define CS42L42_SOFT_RESET_REBOOT (CS42L42_PAGE_27 + 0x01)
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#define CS42L42_SFT_RST_REBOOT_MASK BIT(1)
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/* Page 0x28 S/PDIF Registers */
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#define CS42L42_SPDIF_CTL1 (CS42L42_PAGE_28 + 0x01)
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#define CS42L42_SPDIF_CTL2 (CS42L42_PAGE_28 + 0x02)
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@ -293,6 +293,7 @@ bool cs42l42_readable_register(struct device *dev, unsigned int reg)
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case CS42L42_SPDIF_SW_CTL1:
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case CS42L42_SRC_SDIN_FS:
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case CS42L42_SRC_SDOUT_FS:
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case CS42L42_SOFT_RESET_REBOOT:
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case CS42L42_SPDIF_CTL1:
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case CS42L42_SPDIF_CTL2:
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case CS42L42_SPDIF_CTL3:
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@ -358,6 +359,7 @@ bool cs42l42_volatile_register(struct device *dev, unsigned int reg)
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case CS42L42_LOAD_DET_DONE:
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case CS42L42_DET_STATUS1:
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case CS42L42_DET_STATUS2:
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case CS42L42_SOFT_RESET_REBOOT:
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return true;
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default:
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return false;
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