diff options
| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2022-11-18 10:58:07 +0800 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-01-09 21:37:40 +0530 |
| commit | ffa1726589a7cc4bd96a7f19f43cecdb7342478f (patch) | |
| tree | 4fd45768cfb290fdb4dff694037e72609fdca151 /drivers/soundwire | |
| parent | be505ba8fe90068868bc084cad2079a38486b2d5 (diff) | |
soundwire: enable optional clock registers for SoundWire 1.2 devices
The bus supports the mandatory clock registers for SDCA devices, these
registers can also be optionally supported by SoundWire 1.2 devices
that don't follow the SDCA class specification.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221118025807.534863-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/soundwire')
| -rw-r--r-- | drivers/soundwire/bus.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c index c23275b443ac..55d393247a0f 100644 --- a/drivers/soundwire/bus.c +++ b/drivers/soundwire/bus.c @@ -1233,10 +1233,11 @@ static int sdw_slave_set_frequency(struct sdw_slave *slave) /* * frequency base and scale registers are required for SDCA - * devices. They may also be used for 1.2+/non-SDCA devices, - * but we will need a DisCo property to cover this case + * devices. They may also be used for 1.2+/non-SDCA devices. + * Driver can set the property, we will need a DisCo property + * to discover this case from platform firmware. */ - if (!slave->id.class_id) + if (!slave->id.class_id && !slave->prop.clock_reg_supported) return 0; if (!mclk_freq) { |