clk: mvebu: armada-37xx-periph: save the IP base address in the driver data

Prepare the introduction of suspend/resume hooks by having an easy way
to access all the registers in one go just from a device: add the IP
base address in the driver data.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

diff --git a/drivers/clk/mvebu/armada-37xx-periph.c b/drivers/clk/mvebu/armada-37xx-periph.c
index 499f5962c8b062d70d40d36d3aadfc23cfeb43a2..78048c2e3774be96981390056a12fde6cf9d5118 100644 (file)
--- a/drivers/clk/mvebu/armada-37xx-periph.c
+++ b/drivers/clk/mvebu/armada-37xx-periph.c
@@ -56,6 +56,7 @@
 struct clk_periph_driver_data {
        struct clk_hw_onecell_data *hw_data;
        spinlock_t lock;
+       void __iomem *reg;
 };
 
 struct clk_double_div {
@@ -680,7 +681,6 @@ static int armada_3700_periph_clock_probe(struct platform_device *pdev)
        struct device *dev = &pdev->dev;
        int num_periph = 0, i, ret;
        struct resource *res;
-       void __iomem *reg;
 
        data = of_device_get_match_data(dev);
        if (!data)
@@ -689,11 +689,6 @@ static int armada_3700_periph_clock_probe(struct platform_device *pdev)
        while (data[num_periph].name)
                num_periph++;
 
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       reg = devm_ioremap_resource(dev, res);
-       if (IS_ERR(reg))
-               return PTR_ERR(reg);
-
        driver_data = devm_kzalloc(dev, sizeof(*driver_data), GFP_KERNEL);
        if (!driver_data)
                return -ENOMEM;
@@ -706,12 +701,16 @@ static int armada_3700_periph_clock_probe(struct platform_device *pdev)
                return -ENOMEM;
        driver_data->hw_data->num = num_periph;
 
+       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+       driver_data->reg = devm_ioremap_resource(dev, res);
+       if (IS_ERR(driver_data->reg))
+               return PTR_ERR(driver_data->reg);
+
        spin_lock_init(&driver_data->lock);
 
        for (i = 0; i < num_periph; i++) {
                struct clk_hw **hw = &driver_data->hw_data->hws[i];
-
-               if (armada_3700_add_composite_clk(&data[i], reg,
+               if (armada_3700_add_composite_clk(&data[i], driver_data->reg,
                                                  &driver_data->lock, dev, hw))
                        dev_err(dev, "Can't register periph clock %s\n",
                                data[i].name);