qcom: soc: llcc-slice: Consolidate some code

Make the code a little bit clearer (and use less gotos)
by consolidating some of the initialization.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>

diff --git a/drivers/soc/qcom/llcc-slice.c b/drivers/soc/qcom/llcc-slice.c
index 8390bc006a31d42a51984ca598e43f119483ff24..83a263926a2524275d22638d2494888b74c5c5ae 100644 (file)
--- a/drivers/soc/qcom/llcc-slice.c
+++ b/drivers/soc/qcom/llcc-slice.c
@@ -309,13 +309,28 @@ int qcom_llcc_remove(struct platform_device *pdev)
 }
 EXPORT_SYMBOL_GPL(qcom_llcc_remove);
 
+static struct regmap *qcom_llcc_init_mmio(struct platform_device *pdev,
+               const char *name)
+{
+       struct resource *res;
+       void __iomem *base;
+
+       res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);
+       if (!res)
+               return ERR_PTR(-ENODEV);
+
+       base = devm_ioremap_resource(&pdev->dev, res);
+       if (IS_ERR(base))
+               return ERR_CAST(base);
+
+       return devm_regmap_init_mmio(&pdev->dev, base, &llcc_regmap_config);
+}
+
 int qcom_llcc_probe(struct platform_device *pdev,
                      const struct llcc_slice_config *llcc_cfg, u32 sz)
 {
        u32 num_banks;
        struct device *dev = &pdev->dev;
-       struct resource *llcc_banks_res, *llcc_bcast_res;
-       void __iomem *llcc_banks_base, *llcc_bcast_base;
        int ret, i;
        struct platform_device *llcc_edac;
 
@@ -325,31 +340,14 @@ int qcom_llcc_probe(struct platform_device *pdev,
                goto err;
        }
 
-       llcc_banks_res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
-                                                       "llcc_base");
-       llcc_banks_base = devm_ioremap_resource(&pdev->dev, llcc_banks_res);
-       if (IS_ERR(llcc_banks_base)) {
-               ret = PTR_ERR(llcc_banks_base);
-               goto err;
-       }
-
-       drv_data->regmap = devm_regmap_init_mmio(dev, llcc_banks_base,
-                                               &llcc_regmap_config);
+       drv_data->regmap = qcom_llcc_init_mmio(pdev, "llcc_base");
        if (IS_ERR(drv_data->regmap)) {
                ret = PTR_ERR(drv_data->regmap);
                goto err;
        }
 
-       llcc_bcast_res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
-                                                       "llcc_broadcast_base");
-       llcc_bcast_base = devm_ioremap_resource(&pdev->dev, llcc_bcast_res);
-       if (IS_ERR(llcc_bcast_base)) {
-               ret = PTR_ERR(llcc_bcast_base);
-               goto err;
-       }
-
-       drv_data->bcast_regmap = devm_regmap_init_mmio(dev, llcc_bcast_base,
-                                                       &llcc_regmap_config);
+       drv_data->bcast_regmap =
+               qcom_llcc_init_mmio(pdev, "llcc_broadcast_base");
        if (IS_ERR(drv_data->bcast_regmap)) {
                ret = PTR_ERR(drv_data->bcast_regmap);
                goto err;