[PATCH 04/11] ASoC: qcom: lpass-cpu: Make "ahbix-clk" an optional clock.

[Ajit Pandey]

AHB-I/X bus clocks inside LPASS coreis not a mandatory clocks for
newer lpass variants, hence make it an optional one.

Signed-off-by: Ajit Pandey <ajitp at codeaurora.org>
---
 sound/soc/qcom/lpass-cpu.c | 31 ++++++++++++++++++-------------
 1 file changed, 18 insertions(+), 13 deletions(-)

diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index 492f27b..f177932 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -504,26 +504,31 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	drvdata->ahbix_clk = devm_clk_get(&pdev->dev, "ahbix-clk");
+	drvdata->ahbix_clk = devm_clk_get_optional(&pdev->dev, "ahbix-clk");
 	if (IS_ERR(drvdata->ahbix_clk)) {
 		dev_err(&pdev->dev, "error getting ahbix-clk: %ld\n",
 			PTR_ERR(drvdata->ahbix_clk));
 		return PTR_ERR(drvdata->ahbix_clk);
 	}
 
-	ret = clk_set_rate(drvdata->ahbix_clk, LPASS_AHBIX_CLOCK_FREQUENCY);
-	if (ret) {
-		dev_err(&pdev->dev, "error setting rate on ahbix_clk: %d\n",
-			ret);
-		return ret;
-	}
-	dev_dbg(&pdev->dev, "set ahbix_clk rate to %lu\n",
-		clk_get_rate(drvdata->ahbix_clk));
+	if (drvdata->ahbix_clk != NULL) {
+		ret = clk_set_rate(drvdata->ahbix_clk,
+				   LPASS_AHBIX_CLOCK_FREQUENCY);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"error setting rate on ahbix_clk: %d\n", ret);
+			return ret;
+		}
 
-	ret = clk_prepare_enable(drvdata->ahbix_clk);
-	if (ret) {
-		dev_err(&pdev->dev, "error enabling ahbix_clk: %d\n", ret);
-		return ret;
+		dev_dbg(&pdev->dev, "set ahbix_clk rate to %lu\n",
+			clk_get_rate(drvdata->ahbix_clk));
+
+		ret = clk_prepare_enable(drvdata->ahbix_clk);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"error enabling ahbix_clk: %d\n", ret);
+			return ret;
+		}
 	}
 
 	ret = devm_snd_soc_register_component(&pdev->dev,
-- 
1.9.1