ASoC: SOF: imx8m: Fix DSP control regmap retrieval

According to Documentation/devicetree/bindings/dsp/fsl,dsp.yaml
fsl,dsp-ctrl is a phandle to syscon block so we need to use correct
function to retrieve it.

Currently there is no SOF DSP DTS merged into mainline so there is no
need to support the old way of retrieving the dsp control node.

Fixes: 9ba23717b292 ("ASoC: SOF: imx8m: Implement DSP start")
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://patch.msgid.link/20240715151653.114751-1-daniel.baluta@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/sof/imx/imx8m.c b/sound/soc/sof/imx/imx8m.c
index 1c7019c3cbd38ccaed5b5aca638a5d299b5ce824..cdd1e79ef9f6a443181be6350dd92cd10ed0f30f 100644 (file)
--- a/sound/soc/sof/imx/imx8m.c
+++ b/sound/soc/sof/imx/imx8m.c
@@ -234,7 +234,7 @@ static int imx8m_probe(struct snd_sof_dev *sdev)
        /* set default mailbox offset for FW ready message */
        sdev->dsp_box.offset = MBOX_OFFSET;
 
-       priv->regmap = syscon_regmap_lookup_by_compatible("fsl,dsp-ctrl");
+       priv->regmap = syscon_regmap_lookup_by_phandle(np, "fsl,dsp-ctrl");
        if (IS_ERR(priv->regmap)) {
                dev_err(sdev->dev, "cannot find dsp-ctrl registers");
                ret = PTR_ERR(priv->regmap);