linux-kernel - [PATCH v3 5/5] ASoC: codecs: wsa881x: add static port map support

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Date:   Fri, 12 Mar 2021 11:39:29 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     broonie@...nel.org, vkoul@...nel.org
Cc:     robh@...nel.org, devicetree@...r.kernel.org,
        yung-chuan.liao@...ux.intel.com,
        pierre-louis.bossart@...ux.intel.com, sanyog.r.kale@...el.com,
        linux-kernel@...r.kernel.org,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH v3 5/5] ASoC: codecs: wsa881x: add static port map support

Two instances of WSA881x(Speaker Right, Speaker Left) ports
are statically mapped to master ports. Allow the driver to parse
those mappings from device tree.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 sound/soc/codecs/wsa881x.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sound/soc/codecs/wsa881x.c b/sound/soc/codecs/wsa881x.c
index db87e07b11c9..b3568aec0cd0 100644
--- a/sound/soc/codecs/wsa881x.c
+++ b/sound/soc/codecs/wsa881x.c
@@ -1093,6 +1093,7 @@ static int wsa881x_probe(struct sdw_slave *pdev,
 			 const struct sdw_device_id *id)
 {
 	struct wsa881x_priv *wsa881x;
+	struct device *dev = &pdev->dev;
 
 	wsa881x = devm_kzalloc(&pdev->dev, sizeof(*wsa881x), GFP_KERNEL);
 	if (!wsa881x)
@@ -1105,6 +1106,12 @@ static int wsa881x_probe(struct sdw_slave *pdev,
 		return PTR_ERR(wsa881x->sd_n);
 	}
 
+	/* valid port numbers on this codec starts from 1, so skip 0th index */
+	if (of_property_read_u32_array(dev->of_node, "qcom,port-mapping",
+				       &pdev->m_port_map[1],
+				       WSA881X_MAX_SWR_PORTS))
+		dev_info(dev, "Static Port mapping not specified\n");
+
 	dev_set_drvdata(&pdev->dev, wsa881x);
 	wsa881x->slave = pdev;
 	wsa881x->dev = &pdev->dev;
-- 
2.21.0