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 8708ac8f3614..9edaf4734fa8 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