openwrt/target/linux/bcm27xx/patches-5.4/950-0617-drm-vc4-hdmi-Give-the-HDMI-audio-instances-different.patch

From 992513ac2ec9245cb8f0fdd9c0e2ce4add07beb2 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Tue, 31 Mar 2020 16:21:45 +0100
Subject: [PATCH] drm/vc4-hdmi: Give the HDMI audio instances different
 names

The debugfs usage within asoc gets confused if multiple interfaces
have the same card name, therefore use unique names when
initialising them.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -1198,7 +1198,7 @@ static int vc4_hdmi_audio_init(struct vc
 
 	card->dai_link = dai_link;
 	card->num_links = 1;
-	card->name = "vc4-hdmi";
+	card->name = vc4_hdmi->variant->id ? "vc4-hdmi1" : "vc4-hdmi";
 	card->dev = dev;
 	card->owner = THIS_MODULE;