Re: [PATCH 2/2] ASoC: cs35l45: Adds support for SYNC bus

Ricardo Rivera-Matos <[email protected]> Thu, 13 Aug 2026 09:12:34 -0500

Newsgroups	gmane.linux.sound,gmane.linux.drivers.devicetree,gmane.linux.kernel
Message-ID	<[email protected]>


On 8/12/26 1:03 PM, Mark Brown wrote:
> On Tue, Aug 11, 2026 at 05:06:03PM +0000, Ricardo Rivera-Matos wrote:
>> Adds support for the multidevice synchronization (SYNC) bus.
>> The SYNC bus is an opaque one wire bus that is shared between
>> Cirrus devices. Initial support only includes software (SW)
>> data packets.
> 
>> +	ret = of_property_read_u32(child, "sync-lsw-txid", &val);
>> +	if (!ret)
>> +		regmap_update_bits(cs35l45->regmap, CS35L45_SYNC_SW_TX_ID,
>> +				   CS35L45_SYNC_LSW_TXID_MASK, val << CS35L45_SYNC_LSW_TXID_SHIFT);
>> +
>> +	ret = of_property_read_u32(child, "sync-sw-txid", &val);
>> +	if (!ret)
>> +		regmap_update_bits(cs35l45->regmap, CS35L45_SYNC_SW_TX_ID,
>> +				   CS35L45_SYNC_SW_TXID_MASK, val);
> 
> These are namespace cirrus, in the binding.

ACK. The binding is correct, the driver and my test dtb are stale. This 
will get fixed in v2.