perf/imx_ddr: Get and enable optional clks

Get and enable optional clks because fsl,imx8dxl-db-pmu have two clocks.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/drivers/perf/fsl_imx8_ddr_perf.c b/drivers/perf/fsl_imx8_ddr_perf.c
index 5ba34c606213d255edf27081bb9f63763cca3066..2a8426a74af98cf46725c2c70534829e198746f3 100644 (file)
--- a/drivers/perf/fsl_imx8_ddr_perf.c
+++ b/drivers/perf/fsl_imx8_ddr_perf.c
@@ -5,6 +5,7 @@
  */
 
 #include <linux/bitfield.h>
+#include <linux/clk.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -732,10 +733,12 @@ static int ddr_perf_offline_cpu(unsigned int cpu, struct hlist_node *node)
 
 static int ddr_perf_probe(struct platform_device *pdev)
 {
+       struct clk_bulk_data *clks;
        struct ddr_pmu *pmu;
        struct device_node *np;
        void __iomem *base;
        char *name;
+       int nclks;
        int num;
        int ret;
        int irq;
@@ -754,6 +757,10 @@ static int ddr_perf_probe(struct platform_device *pdev)
 
        platform_set_drvdata(pdev, pmu);
 
+       nclks = devm_clk_bulk_get_all_enabled(&pdev->dev, &clks);
+       if (nclks < 0)
+               return dev_err_probe(&pdev->dev, nclks, "Failure get clks\n");
+
        num = ida_alloc(&ddr_ida, GFP_KERNEL);
        if (num < 0)
                return num;