dm: sunxi: Add pinmux functions which take a bank parameter

With driver model we will have access to a bank pointer, so we want to
use it rather than converting back to a number, and then back to a
bank pointer. Add functions to provide this feature.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

arch/arm/cpu/armv7/sunxi/pinmux.c

@@ -10,32 +10,42 @@
 #include <asm/io.h>
 #include <asm/arch/gpio.h>
 
-int sunxi_gpio_set_cfgpin(u32 pin, u32 val)
+void sunxi_gpio_set_cfgbank(struct sunxi_gpio *pio, int bank_offset, u32 val)
 {
-	u32 bank = GPIO_BANK(pin);
-	u32 index = GPIO_CFG_INDEX(pin);
-	u32 offset = GPIO_CFG_OFFSET(pin);
-	struct sunxi_gpio *pio = BANK_TO_GPIO(bank);
+	u32 index = GPIO_CFG_INDEX(bank_offset);
+	u32 offset = GPIO_CFG_OFFSET(bank_offset);
 
 	clrsetbits_le32(&pio->cfg[0] + index, 0xf << offset, val << offset);
-
-	return 0;
 }
 
-int sunxi_gpio_get_cfgpin(u32 pin)
+void sunxi_gpio_set_cfgpin(u32 pin, u32 val)
 {
-	u32 cfg;
 	u32 bank = GPIO_BANK(pin);
-	u32 index = GPIO_CFG_INDEX(pin);
-	u32 offset = GPIO_CFG_OFFSET(pin);
 	struct sunxi_gpio *pio = BANK_TO_GPIO(bank);
 
+	sunxi_gpio_set_cfgbank(pio, pin, val);
+}
+
+int sunxi_gpio_get_cfgbank(struct sunxi_gpio *pio, int bank_offset)
+{
+	u32 index = GPIO_CFG_INDEX(bank_offset);
+	u32 offset = GPIO_CFG_OFFSET(bank_offset);
+	u32 cfg;
+
 	cfg = readl(&pio->cfg[0] + index);
 	cfg >>= offset;
 
 	return cfg & 0xf;
 }
 
+int sunxi_gpio_get_cfgpin(u32 pin)
+{
+	u32 bank = GPIO_BANK(pin);
+	struct sunxi_gpio *pio = BANK_TO_GPIO(bank);
+
+	return sunxi_gpio_get_cfgbank(pio, pin);
+}
+
 int sunxi_gpio_set_drv(u32 pin, u32 val)
 {
 	u32 bank = GPIO_BANK(pin);

arch/arm/include/asm/arch-sunxi/gpio.h

@@ -180,7 +180,9 @@ enum sunxi_gpio_number {
 #define SUNXI_GPIO_PULL_UP	1
 #define SUNXI_GPIO_PULL_DOWN	2
 
-int sunxi_gpio_set_cfgpin(u32 pin, u32 val);
+void sunxi_gpio_set_cfgbank(struct sunxi_gpio *pio, int bank_offset, u32 val);
+void sunxi_gpio_set_cfgpin(u32 pin, u32 val);
+int sunxi_gpio_get_cfgbank(struct sunxi_gpio *pio, int bank_offset);
 int sunxi_gpio_get_cfgpin(u32 pin);
 int sunxi_gpio_set_drv(u32 pin, u32 val);
 int sunxi_gpio_set_pull(u32 pin, u32 val);