@@ -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) {
@@ -365,6 +365,9 @@ struct sdw_dpn_prop {
* @sink_dpn_prop: Sink Data Port N properties
* @scp_int1_mask: SCP_INT1_MASK desired settings
* @quirks: bitmask identifying deltas from the MIPI specification
+ * @clock_reg_supported: the Peripheral implements the clock base and scale
+ * registers introduced with the SoundWire 1.2 specification. SDCA devices
+ * do not need to set this boolean property as the registers are required.
*/
struct sdw_slave_prop {
u32 mipi_revision;
@@ -388,6 +391,7 @@ struct sdw_slave_prop {
struct sdw_dpn_prop *sink_dpn_prop;
u8 scp_int1_mask;
u32 quirks;
+ bool clock_reg_supported;
};
#define SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY BIT(0)