[PATCH 3/5] clk: qcom: apcs-msm8916: Retrieve clock name from DT

[Shawn Guo <shawn.guo@linaro.org>]

Unlike MSM8916 which has only one APCS clock, MSM8939 gets three for
Cluster0 (little cores), Cluster1 (big cores) and CCI (Cache Coherent
Interconnect).  Instead of hard coding APCS (and A53PLL) clock name,
retrieve the name from DT, so that multiple APCS clocks can be
registered.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 drivers/clk/qcom/a53-pll.c      | 5 ++++-
 drivers/clk/qcom/apcs-msm8916.c | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/qcom/a53-pll.c b/drivers/clk/qcom/a53-pll.c
index 8614b0b0e82c..964f5ab7d02f 100644
--- a/drivers/clk/qcom/a53-pll.c
+++ b/drivers/clk/qcom/a53-pll.c
@@ -42,6 +42,7 @@ static int qcom_a53pll_probe(struct platform_device *pdev)
 	struct clk_pll *pll;
 	void __iomem *base;
 	struct clk_init_data init = { };
+	const char *clk_name = NULL;
 	int ret;
 
 	pll = devm_kzalloc(dev, sizeof(*pll), GFP_KERNEL);
@@ -66,7 +67,9 @@ static int qcom_a53pll_probe(struct platform_device *pdev)
 	pll->status_bit = 16;
 	pll->freq_tbl = a53pll_freq;
 
-	init.name = "a53pll";
+	of_property_read_string(pdev->dev.of_node, "clock-output-names",
+				&clk_name);
+	init.name = clk_name ? clk_name : "a53pll";
 	init.parent_names = (const char *[]){ "xo" };
 	init.num_parents = 1;
 	init.ops = &clk_pll_sr2_ops;
diff --git a/drivers/clk/qcom/apcs-msm8916.c b/drivers/clk/qcom/apcs-msm8916.c
index d7ac6d6b15b6..b8bbfe9622e1 100644
--- a/drivers/clk/qcom/apcs-msm8916.c
+++ b/drivers/clk/qcom/apcs-msm8916.c
@@ -49,6 +49,7 @@ static int qcom_apcs_msm8916_clk_probe(struct platform_device *pdev)
 	struct clk_regmap_mux_div *a53cc;
 	struct regmap *regmap;
 	struct clk_init_data init = { };
+	const char *clk_name = NULL;
 	int ret = -ENODEV;
 
 	regmap = dev_get_regmap(parent, NULL);
@@ -61,7 +62,9 @@ static int qcom_apcs_msm8916_clk_probe(struct platform_device *pdev)
 	if (!a53cc)
 		return -ENOMEM;
 
-	init.name = "a53mux";
+	of_property_read_string(parent->of_node, "clock-output-names",
+				&clk_name);
+	init.name = clk_name ? clk_name : "a53mux";
 	init.parent_data = pdata;
 	init.num_parents = ARRAY_SIZE(pdata);
 	init.ops = &clk_regmap_mux_div_ops;
-- 
2.17.1