diff options
| -rw-r--r-- | drivers/soundwire/bus.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c index 0490777fa406..0c1cdd603926 100644 --- a/drivers/soundwire/bus.c +++ b/drivers/soundwire/bus.c @@ -817,8 +817,11 @@ bool is_clock_scaling_supported_by_slave(struct sdw_slave *slave) /* * Dynamic scaling is a defined by SDCA. However, some devices expose the class ID but * can't support dynamic scaling. We might need a quirk to handle such devices. + * The clock base and scale registers themselves are SoundWire 1.2, so a device + * may implement them without setting the class field; the driver says so with + * clock_reg_supported. */ - return slave->id.class_id; + return slave->id.class_id || slave->prop.clock_reg_supported; } EXPORT_SYMBOL(is_clock_scaling_supported_by_slave); @@ -1385,7 +1388,7 @@ static int sdw_slave_set_frequency(struct sdw_slave *slave) * DisCo property to discover support for the scaling registers * from platform firmware. */ - if (!slave->id.class_id && !slave->prop.clock_reg_supported) + if (!is_clock_scaling_supported_by_slave(slave)) return 0; scale_index = sdw_slave_get_scale_index(slave, &base); |