ASoC: qcom: Modify test for DSP in LPASS driver

As the representation of the DSP in the device
tree has changed from a required subnode to an
optional phandle, modify the test for DSP
existence in the LPASS CPU DAI driver,
accordingly.

Signed-off-by: Kenneth Westfield <kwestfie@codeaurora.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index d5167131787f3a7663665c94dffe6899bd050179..6698d058de29600a464be79490bec641736819c3 100644 (file)
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -359,45 +359,26 @@ static const struct regmap_config lpass_cpu_regmap_config = {
        .cache_type = REGCACHE_FLAT,
 };
 
-static int lpass_cpu_parse_of(struct device *dev)
+static int lpass_cpu_platform_probe(struct platform_device *pdev)
 {
+       struct lpass_data *drvdata;
        struct device_node *dsp_of_node;
+       struct resource *res;
+       int ret;
 
-       dsp_of_node = of_get_child_by_name(dev->of_node, "qcom,adsp");
-       if (!dsp_of_node) {
-               dev_err(dev, "%s() error getting qcom,adsp sub-node\n",
-                               __func__);
-               return -EINVAL;
-       }
-
-       if (of_device_is_available(dsp_of_node)) {
-               dev_err(dev, "%s() DSP exists and holds audio resources\n",
+       dsp_of_node = of_parse_phandle(pdev->dev.of_node, "qcom,adsp", 0);
+       if (dsp_of_node) {
+               dev_err(&pdev->dev, "%s() DSP exists and holds audio resources\n",
                                __func__);
                return -EBUSY;
        }
 
-       return 0;
-}
-
-static int lpass_cpu_platform_probe(struct platform_device *pdev)
-{
-       struct lpass_data *drvdata;
-       struct resource *res;
-       int ret;
-
        drvdata = devm_kzalloc(&pdev->dev, sizeof(struct lpass_data),
                        GFP_KERNEL);
        if (!drvdata)
                return -ENOMEM;
        platform_set_drvdata(pdev, drvdata);
 
-       ret = lpass_cpu_parse_of(&pdev->dev);
-       if (ret) {
-               dev_err(&pdev->dev, "%s() error getting DT node info: %d\n",
-                               __func__, ret);
-               return ret;
-       }
-
        res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "lpass-lpaif");
        if (!res) {
                dev_err(&pdev->dev, "%s() error getting resource\n", __func__);