sh-pfc: Drop unused support for 1:1 physical to virtual memory mappings

Now that all PFC platform devices provide memory resources support for
registers without an associated memory resource isn't used anymore. Drop
it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/drivers/pinctrl/sh-pfc/core.c b/drivers/pinctrl/sh-pfc/core.c
index e847d16..cadfb37 100644 (file)
--- a/drivers/pinctrl/sh-pfc/core.c
+++ b/drivers/pinctrl/sh-pfc/core.c
@@ -30,10 +30,8 @@ static int sh_pfc_ioremap(struct sh_pfc *pfc, struct platform_device *pdev)
        struct resource *res;
        int k;
 
-       if (pdev->num_resources == 0) {
-               pfc->num_windows = 0;
-               return 0;
-       }
+       if (pdev->num_resources == 0)
+               return -EINVAL;
 
        pfc->window = devm_kzalloc(pfc->dev, pdev->num_resources *
                                   sizeof(*pfc->window), GFP_NOWAIT);
@@ -59,11 +57,11 @@ static void __iomem *sh_pfc_phys_to_virt(struct sh_pfc *pfc,
                                         unsigned long address)
 {
        struct sh_pfc_window *window;
-       int k;
+       unsigned int i;
 
        /* scan through physical windows and convert address */
-       for (k = 0; k < pfc->num_windows; k++) {
-               window = pfc->window + k;
+       for (i = 0; i < pfc->num_windows; i++) {
+               window = pfc->window + i;
 
                if (address < window->phys)
                        continue;
@@ -74,8 +72,7 @@ static void __iomem *sh_pfc_phys_to_virt(struct sh_pfc *pfc,
                return window->virt + (address - window->phys);
        }
 
-       /* no windows defined, register must be 1:1 mapped virt:phys */
-       return (void __iomem *)address;
+       BUG();
 }
 
 struct sh_pfc_pin *sh_pfc_get_pin(struct sh_pfc *pfc, unsigned int pin)