drm/bridge: sii902x: add audio graph card support (17224cf2) · Commits · 戴 / test

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@st.com> Reviewed-by:

Philippe Cornu <philippe.cornu@st.com> Acked-by:

Andrzej Hajda <a.hajda@samsung.com> Reviewed-by:

Jyri Sarha <jsarha@ti.com> Signed-off-by:

Benjamin Gaignard <benjamin.gaignard@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/1562141052-26221-1-git-send-email-olivier.moysan@st.com

drivers/gpu/drm/bridge/sii902x.c

+23 −0

Original line number	Diff line number	Diff line
		@@ -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;
		@@ -692,11 +694,32 @@ 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,

Admin message