linux-kernel - Re: [PATCH] drm/vc4: Unify PCM card's driver

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Message-ID: <20210118100410.co3qph4gsvy3kloy@gilmour>
Date:   Mon, 18 Jan 2021 11:04:10 +0100
From:   Maxime Ripard <maxime@...no.tech>
To:     Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        eric@...olt.net, daniel@...ll.ch, airlied@...ux.ie,
        stefan.wahren@...e.com, broonie@...nel.org, tiwai@...e.com
Subject: Re: [PATCH] drm/vc4: Unify PCM card's driver_name

On Fri, Jan 15, 2021 at 08:12:09PM +0100, Nicolas Saenz Julienne wrote:
> 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@...e.de>
> Fixes: f437bc1ec731 ("drm/vc4: drv: Support BCM2711")

Applied, thanks
Maxime

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