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>

1 files changed, 7 insertions, 26 deletions

diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index d5167131787f..6698d058de29 100644
--- 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__);