ASoC: rt711-sdca: add DP0 support

DP0 is required for BPT/BRA transport.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Acked-by: Mark Brown <broonie@kernel.org>
Tested-by: shumingf@realtek.com
Link: https://lore.kernel.org/r/20250227140615.8147-17-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

sound/soc/codecs/rt711-sdca-sdw.c

@@ -225,6 +225,14 @@ static int rt711_sdca_read_prop(struct sdw_slave *slave)
 		j++;
 	}
 
+	prop->dp0_prop = devm_kzalloc(&slave->dev, sizeof(*prop->dp0_prop),
+				      GFP_KERNEL);
+	if (!prop->dp0_prop)
+		return -ENOMEM;
+
+	prop->dp0_prop->simple_ch_prep_sm = true;
+	prop->dp0_prop->ch_prep_timeout = 10;
+
 	/* set the timeout values */
 	prop->clk_stop_timeout = 700;