diff mbox series

[v2,3/3] ASoC: rk3399_gru_sound: Wire up DP jack detection

Message ID 20220114150129.v2.3.I3c79b1466c14b02980071221e5b99283cd26ec77@changeid
State Superseded
Headers show
Series (Re)enable DP/HDMI audio for RK3399 Gru | expand

Commit Message

Brian Norris Jan. 14, 2022, 11:02 p.m. UTC
Now that the cdn-dp driver supports plug-change callbacks, let's wire it
up.

Signed-off-by: Brian Norris <briannorris@chromium.org>
---

(no changes since v1)

 sound/soc/rockchip/rk3399_gru_sound.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

Comments

Brian Norris Jan. 18, 2022, 8:17 p.m. UTC | #1
Hi Chen-Yu,

On Mon, Jan 17, 2022 at 05:01:52PM +0800, Chen-Yu Tsai wrote:
> On Sat, Jan 15, 2022 at 7:03 AM Brian Norris <briannorris@chromium.org> wrote:
> >
> > Now that the cdn-dp driver supports plug-change callbacks, let's wire it
> > up.
> >
> > Signed-off-by: Brian Norris <briannorris@chromium.org>
> > ---
> >
> > (no changes since v1)
> >
> >  sound/soc/rockchip/rk3399_gru_sound.c | 20 ++++++++++++++++++++
> >  1 file changed, 20 insertions(+)
> >
> > diff --git a/sound/soc/rockchip/rk3399_gru_sound.c b/sound/soc/rockchip/rk3399_gru_sound.c
> > index e2d52d8d0ff9..eeef3ed70037 100644
> > --- a/sound/soc/rockchip/rk3399_gru_sound.c
> > +++ b/sound/soc/rockchip/rk3399_gru_sound.c
> > @@ -164,6 +164,25 @@ static int rockchip_sound_da7219_hw_params(struct snd_pcm_substream *substream,
> >         return 0;
> >  }
> >
> > +static struct snd_soc_jack cdn_dp_card_jack;
> > +
> > +static int rockchip_sound_cdndp_init(struct snd_soc_pcm_runtime *rtd)
> > +{
> > +       struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
> 
> Using snd_soc_card_get_codec_dai() might be a better choice throughout this
> driver. While it will work for the cdn_dp case, because it is the first DAI
> in |rockchip_dais[]|, all the invocations for the other codecs are likely
> returning the wrong DAI.

I'll admit, I'm not very familiar with the ASoC object model, so you may
well be correct that there's something fishy in here. But I did trace
through the objects involved here, and we *are* getting the correct DAI
for both this case and the DA7219 case (preexisting code).

It looks like we actually have a new runtime for each of our static
dai_links:

devm_snd_soc_register_card()
  ...
  for_each_card_prelinks()
    snd_soc_add_pcm_runtime()

So I think this is valid to keep as-is.

> For this particular patch it works either way, so
> 
> Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>

Thanks for looking!

Brian
diff mbox series

Patch

diff --git a/sound/soc/rockchip/rk3399_gru_sound.c b/sound/soc/rockchip/rk3399_gru_sound.c
index e2d52d8d0ff9..eeef3ed70037 100644
--- a/sound/soc/rockchip/rk3399_gru_sound.c
+++ b/sound/soc/rockchip/rk3399_gru_sound.c
@@ -164,6 +164,25 @@  static int rockchip_sound_da7219_hw_params(struct snd_pcm_substream *substream,
 	return 0;
 }
 
+static struct snd_soc_jack cdn_dp_card_jack;
+
+static int rockchip_sound_cdndp_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+	struct snd_soc_card *card = rtd->card;
+	int ret;
+
+	/* Enable jack detection. */
+	ret = snd_soc_card_jack_new(card, "DP Jack", SND_JACK_LINEOUT,
+				    &cdn_dp_card_jack, NULL, 0);
+	if (ret) {
+		dev_err(card->dev, "Can't create DP Jack %d\n", ret);
+		return ret;
+	}
+
+	return snd_soc_component_set_jack(component, &cdn_dp_card_jack, NULL);
+}
+
 static int rockchip_sound_da7219_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
@@ -315,6 +334,7 @@  static const struct snd_soc_dai_link rockchip_dais[] = {
 	[DAILINK_CDNDP] = {
 		.name = "DP",
 		.stream_name = "DP PCM",
+		.init = rockchip_sound_cdndp_init,
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 			SND_SOC_DAIFMT_CBS_CFS,
 		SND_SOC_DAILINK_REG(cdndp),