[PATCH] ALSA: usb-audio: apply quirk for Playstation PDP Riffmaster

[Rosalie Wanders]

This device, just like the Playstation 5's DualSense, has a volume
that's too low, hid-playstation solves this by raising the minimum
volume on the device itself by sending an output report, third party PS5
controllers/accessories do not support this output report format, so we
apply a quirk to raise the minimum volume by 6dB.

Signed-off-by: Rosalie Wanders <rosalie@xxxxxxxxxxx>
---
 sound/usb/mixer.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 85653112e7f3..5fba456eb4a9 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -1190,6 +1190,16 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval,
 			cval->res = 1;
 		}
 		break;
+
+	case USB_ID(0x0e6f, 0x024a): /* PDP Riffmaster for PS4 */
+	case USB_ID(0x0e6f, 0x0249): /* PDP Riffmaster for PS5 */
+		if (!strcmp(kctl->id.name, "PCM Playback Volume")) {
+			usb_audio_info(chip,
+				"set volume quirk for PDP Riffmaster for PS4/PS5\n");
+			cval->min = -2560; /* Mute under it */
+		}
+		break;
+
 	case USB_ID(0x3302, 0x12db): /* MOONDROP Quark2 */
 		if (!strcmp(kctl->id.name, "PCM Playback Volume")) {
 			usb_audio_info(chip,
-- 
2.53.0