diff mbox series

[5.10,099/199] drm/vc4: Unify PCM cards driver_name

Message ID 20210125183220.457534182@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman Jan. 25, 2021, 6:38 p.m. UTC 
From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>

[ Upstream commit 33c74535b03ecf11359de14bc88302595b1de44f ]

User-space ALSA matches a card's driver name against an internal list of
aliases in order to select the correct configuration for the system.
When the driver name isn't defined, the match is performed against the
card's name.

With the introduction of RPi4 we now have two HDMI ports with two
distinct audio cards. This is reflected in their names, making them
different from previous RPi versions. With this, ALSA ultimately misses
the board's configuration on RPi4.

In order to avoid this, set "card->driver_name" to "vc4-hdmi"
unanimously.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Fixes: f437bc1ec731 ("drm/vc4: drv: Support BCM2711")
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210115191209.12852-1-nsaenzjulienne@suse.de
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index afc178b0d89f4..eaba98e15de46 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -1268,6 +1268,7 @@  static int vc4_hdmi_audio_init(struct vc4_hdmi *vc4_hdmi)
 	card->dai_link = dai_link;
 	card->num_links = 1;
 	card->name = vc4_hdmi->variant->card_name;
+	card->driver_name = "vc4-hdmi";
 	card->dev = dev;
 	card->owner = THIS_MODULE;