ARM: plat-iop: pass physical base for GPIO

This alters the IOP platforms to pass a physical base for their
GPIO blocks and alters the driver to remap it when probing
instead of relying on the virtual addresses to be used.

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/arch/arm/mach-iop32x/gpio-iop32x.h b/arch/arm/mach-iop32x/gpio-iop32x.h
index b8710a6..3c7309c 100644 (file)
--- a/arch/arm/mach-iop32x/gpio-iop32x.h
+++ b/arch/arm/mach-iop32x/gpio-iop32x.h
@@ -1,5 +1,5 @@
 static struct resource iop32x_gpio_res[] = {
-       DEFINE_RES_MEM((IOP3XX_PERIPHERAL_VIRT_BASE + 0x07c4), 0x10),
+       DEFINE_RES_MEM((IOP3XX_PERIPHERAL_PHYS_BASE + 0x07c4), 0x10),
 };
 
 static inline void register_iop32x_gpio(void)

diff --git a/arch/arm/mach-iop33x/iq80331.c b/arch/arm/mach-iop33x/iq80331.c
index 25741c4..e2cb65c 100644 (file)
--- a/arch/arm/mach-iop33x/iq80331.c
+++ b/arch/arm/mach-iop33x/iq80331.c
@@ -123,7 +123,7 @@ static struct platform_device iq80331_flash_device = {
 };
 
 static struct resource iq80331_gpio_res[] = {
-       DEFINE_RES_MEM((IOP3XX_PERIPHERAL_VIRT_BASE + 0x1780), 0x10),
+       DEFINE_RES_MEM((IOP3XX_PERIPHERAL_PHYS_BASE + 0x1780), 0x10),
 };
 
 static void __init iq80331_init_machine(void)

diff --git a/arch/arm/mach-iop33x/iq80332.c b/arch/arm/mach-iop33x/iq80332.c
index a3b56e1..0b6269d 100644 (file)
--- a/arch/arm/mach-iop33x/iq80332.c
+++ b/arch/arm/mach-iop33x/iq80332.c
@@ -123,7 +123,7 @@ static struct platform_device iq80332_flash_device = {
 };
 
 static struct resource iq80332_gpio_res[] = {
-       DEFINE_RES_MEM((IOP3XX_PERIPHERAL_VIRT_BASE + 0x1780), 0x10),
+       DEFINE_RES_MEM((IOP3XX_PERIPHERAL_PHYS_BASE + 0x1780), 0x10),
 };
 
 static void __init iq80332_init_machine(void)

diff --git a/drivers/gpio/gpio-iop.c b/drivers/gpio/gpio-iop.c
index 0d991d7..c22a61b 100644 (file)
--- a/drivers/gpio/gpio-iop.c
+++ b/drivers/gpio/gpio-iop.c
@@ -110,7 +110,7 @@ static int iop3xx_gpio_probe(struct platform_device *pdev)
        struct resource *res;
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       base = (void *) res->start;
+       base = devm_ioremap_resource(&pdev->dev, res);
 
        return gpiochip_add(&iop3xx_chip);
 }