Add DisplayPort sound support for Fairphone 5

Merge series from Luca Weiss <luca.weiss@fairphone.com>:

Add the necessary sound card bits and some dts additions to enable sound
over DisplayPort-over-USB-C, e.g. to a connected TV or monitor.

The UCM files can be found here:
https://gitlab.postmarketos.org/postmarketOS/pmaports/-/tree/master/device/testing/device-fairphone-fp5/ucm

This series - in spirit - depends on the series enabling DisplayPort in
the first place, but can land pretty independently, especially the ASoC
bits:
https://lore.kernel.org/linux-arm-msm/20250312-fp5-pmic-glink-dp-v2-0-a55927749d77@fairphone.com/

1 files changed, 15 insertions, 12 deletions

diff --git a/sound/soc/qcom/sm8250.c b/sound/soc/qcom/sm8250.c
index b70b2a5031df..69c514fad0b1 100644
--- a/sound/soc/qcom/sm8250.c
+++ b/sound/soc/qcom/sm8250.c
@@ -16,7 +16,6 @@
 #include "usb_offload_utils.h"
 #include "sdw.h"
 
-#define DRIVER_NAME		"sm8250"
 #define MI2S_BCLK_RATE		1536000
 
 struct sm8250_snd_data {
@@ -26,6 +25,7 @@ struct sm8250_snd_data {
 	struct snd_soc_jack jack;
 	struct snd_soc_jack usb_offload_jack;
 	bool usb_offload_jack_setup;
+	struct snd_soc_jack dp_jack;
 	bool jack_setup;
 };
 
@@ -33,14 +33,16 @@ static int sm8250_snd_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct sm8250_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
 	struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
-	int ret;
 
-	if (cpu_dai->id == USB_RX)
-		ret = qcom_snd_usb_offload_jack_setup(rtd, &data->usb_offload_jack,
-						      &data->usb_offload_jack_setup);
-	else
-		ret = qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup);
-	return ret;
+	switch (cpu_dai->id) {
+	case DISPLAY_PORT_RX:
+		return qcom_snd_dp_jack_setup(rtd, &data->dp_jack, 0);
+	case USB_RX:
+		return qcom_snd_usb_offload_jack_setup(rtd, &data->usb_offload_jack,
+						       &data->usb_offload_jack_setup);
+	default:
+		return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup);
+	}
 }
 
 static void sm8250_snd_exit(struct snd_soc_pcm_runtime *rtd)
@@ -200,15 +202,16 @@ static int sm8250_platform_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	card->driver_name = DRIVER_NAME;
+	card->driver_name = of_device_get_match_data(dev);
 	sm8250_add_be_ops(card);
 	return devm_snd_soc_register_card(dev, card);
 }
 
 static const struct of_device_id snd_sm8250_dt_match[] = {
-	{.compatible = "qcom,sm8250-sndcard"},
-	{.compatible = "qcom,qrb4210-rb2-sndcard"},
-	{.compatible = "qcom,qrb5165-rb5-sndcard"},
+	{ .compatible = "fairphone,fp5-sndcard", .data = "qcm6490" },
+	{ .compatible = "qcom,qrb4210-rb2-sndcard", .data = "sm4250" },
+	{ .compatible = "qcom,qrb5165-rb5-sndcard", .data = "sm8250" },
+	{ .compatible = "qcom,sm8250-sndcard", .data = "sm8250" },
 	{}
 };