clk: qcom: a53pll/mux: Use unique clock name

Different from MSM8916 which has only one a53pll/mux clock, MSM8939 gets
three for Cluster0 (little cores), Cluster1 (big cores) and CCI (Cache
Coherent Interconnect).  That said, a53pll/mux clock needs to be named
uniquely.  Append @unit-address of device node to the clock name, so
that a53pll/mux will be named like below on MSM8939.

  a53pll@b016000
  a53pll@b116000
  a53pll@b1d0000

  a53mux@b1d1000
  a53mux@b011000
  a53mux@b111000

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Link: https://lore.kernel.org/r/20210704024032.11559-3-shawn.guo@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Author: Shawn Guo

drivers/clk/qcom/a53-pll.c

@@ -37,6 +37,7 @@ static const struct regmap_config a53pll_regmap_config = {
 static int qcom_a53pll_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
 	struct regmap *regmap;
 	struct resource *res;
 	struct clk_pll *pll;
@@ -66,7 +67,12 @@ static int qcom_a53pll_probe(struct platform_device *pdev)
 	pll->status_bit = 16;
 	pll->freq_tbl = a53pll_freq;
 
-	init.name = "a53pll";
+	/* Use an unique name by appending @unit-address */
+	init.name = devm_kasprintf(dev, GFP_KERNEL, "a53pll%s",
+				   strchrnul(np->full_name, '@'));
+	if (!init.name)
+		return -ENOMEM;
+
 	init.parent_names = (const char *[]){ "xo" };
 	init.num_parents = 1;
 	init.ops = &clk_pll_sr2_ops;

drivers/clk/qcom/apcs-msm8916.c

@@ -46,6 +46,7 @@ static int qcom_apcs_msm8916_clk_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct device *parent = dev->parent;
+	struct device_node *np = parent->of_node;
 	struct clk_regmap_mux_div *a53cc;
 	struct regmap *regmap;
 	struct clk_init_data init = { };
@@ -61,7 +62,12 @@ static int qcom_apcs_msm8916_clk_probe(struct platform_device *pdev)
 	if (!a53cc)
 		return -ENOMEM;
 
-	init.name = "a53mux";
+	/* Use an unique name by appending parent's @unit-address */
+	init.name = devm_kasprintf(dev, GFP_KERNEL, "a53mux%s",
+				   strchrnul(np->full_name, '@'));
+	if (!init.name)
+		return -ENOMEM;
+
 	init.parent_data = pdata;
 	init.num_parents = ARRAY_SIZE(pdata);
 	init.ops = &clk_regmap_mux_div_ops;