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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>
This commit is contained in:
Laurent Pinchart 2013-02-16 23:39:07 +01:00
parent e51d5343ff
commit bee9f22ba1
1 changed files with 6 additions and 9 deletions
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15
drivers/pinctrl/sh-pfc/core.c
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@ -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)