ARM: ixp4xx: stop broadcasting the custom GPIO API

Now that these custom GPIO accessors are only used from the
gpio chip in this machine, move the code out of the include
file and right next to the gpiochip implementation.

Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 38 insertions, 0 deletions

diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index 8708ac8f361..9edaf4734fa 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -81,6 +81,44 @@ void __init ixp4xx_map_io(void)
   	iotable_init(ixp4xx_io_desc, ARRAY_SIZE(ixp4xx_io_desc));
 }
 
+/*
+ * GPIO-functions
+ */
+/*
+ * The following converted to the real HW bits the gpio_line_config
+ */
+/* GPIO pin types */
+#define IXP4XX_GPIO_OUT 		0x1
+#define IXP4XX_GPIO_IN  		0x2
+
+/* GPIO signal types */
+#define IXP4XX_GPIO_LOW			0
+#define IXP4XX_GPIO_HIGH		1
+
+/* GPIO Clocks */
+#define IXP4XX_GPIO_CLK_0		14
+#define IXP4XX_GPIO_CLK_1		15
+
+static void gpio_line_config(u8 line, u32 direction)
+{
+	if (direction == IXP4XX_GPIO_IN)
+		*IXP4XX_GPIO_GPOER |= (1 << line);
+	else
+		*IXP4XX_GPIO_GPOER &= ~(1 << line);
+}
+
+static void gpio_line_get(u8 line, int *value)
+{
+	*value = (*IXP4XX_GPIO_GPINR >> line) & 0x1;
+}
+
+static void gpio_line_set(u8 line, int value)
+{
+	if (value == IXP4XX_GPIO_HIGH)
+	    *IXP4XX_GPIO_GPOUTR |= (1 << line);
+	else if (value == IXP4XX_GPIO_LOW)
+	    *IXP4XX_GPIO_GPOUTR &= ~(1 << line);
+}
 
 /*************************************************************************
  * IXP4xx chipset IRQ handling