linux-kernel - Re: [PATCH] drm/bridge: sii902x: add audio graph card support

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Message-ID: <CA+M3ks6H4OC0SUUj=34OxCq-chA-W_YxO_xs_0hkJAuxQv12JQ@mail.gmail.com>
Date:   Thu, 25 Jul 2019 14:31:24 +0200
From:   Benjamin Gaignard <benjamin.gaignard@...aro.org>
To:     Jyri Sarha <jsarha@...com>
Cc:     Olivier Moysan <olivier.moysan@...com>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>, jernej.skrabec@...l.net,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        ML dri-devel <dri-devel@...ts.freedesktop.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Benjamin GAIGNARD <benjamin.gaignard@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linux-stm32@...md-mailman.stormreply.com
Subject: Re: [PATCH] drm/bridge: sii902x: add audio graph card support

Le jeu. 11 juil. 2019 à 13:09, Jyri Sarha <jsarha@...com> a écrit :
>
> On 03/07/2019 11:04, Olivier Moysan wrote:
> > Implement get_dai_id callback of audio HDMI codec
> > to support ASoC audio graph card.
> > HDMI audio output has to be connected to sii902x port 3.
> > get_dai_id callback maps this port to ASoC DAI index 0.
> >
> > Signed-off-by: Olivier Moysan <olivier.moysan@...com>
>
> I have not used audio graph binding, but compared to the other
> get_dai_id() implementations, this looks identical. So:
>
> Reviewed-by: Jyri Sarha <jsarha@...com>

Applied on drm-misc-next,
Thanks,
Benjamin

>
> > ---
> >  drivers/gpu/drm/bridge/sii902x.c | 23 +++++++++++++++++++++++
> >  1 file changed, 23 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c
> > index dd7aa466b280..daf9ef3cd817 100644
> > --- a/drivers/gpu/drm/bridge/sii902x.c
> > +++ b/drivers/gpu/drm/bridge/sii902x.c
> > @@ -158,6 +158,8 @@
> >
> >  #define SII902X_I2C_BUS_ACQUISITION_TIMEOUT_MS       500
> >
> > +#define SII902X_AUDIO_PORT_INDEX             3
> > +
> >  struct sii902x {
> >       struct i2c_client *i2c;
> >       struct regmap *regmap;
> > @@ -690,11 +692,32 @@ static int sii902x_audio_get_eld(struct device *dev, void *data,
> >       return 0;
> >  }
> >
> > +static int sii902x_audio_get_dai_id(struct snd_soc_component *component,
> > +                                 struct device_node *endpoint)
> > +{
> > +     struct of_endpoint of_ep;
> > +     int ret;
> > +
> > +     ret = of_graph_parse_endpoint(endpoint, &of_ep);
> > +     if (ret < 0)
> > +             return ret;
> > +
> > +     /*
> > +      * HDMI sound should be located at reg = <3>
> > +      * Return expected DAI index 0.
> > +      */
> > +     if (of_ep.port == SII902X_AUDIO_PORT_INDEX)
> > +             return 0;
> > +
> > +     return -EINVAL;
> > +}
> > +
> >  static const struct hdmi_codec_ops sii902x_audio_codec_ops = {
> >       .hw_params = sii902x_audio_hw_params,
> >       .audio_shutdown = sii902x_audio_shutdown,
> >       .digital_mute = sii902x_audio_digital_mute,
> >       .get_eld = sii902x_audio_get_eld,
> > +     .get_dai_id = sii902x_audio_get_dai_id,
> >  };
> >
> >  static int sii902x_audio_codec_init(struct sii902x *sii902x,
> >
>
>
> --
> Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
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