ARM: MXS: Make gpio a driver

This turns the MXS gpio support into a driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 0 insertions, 60 deletions

diff --git a/arch/arm/mach-mxs/iomux-imx.c b/arch/arm/mach-mxs/iomux-imx.c
index 84c6ca4ca7..68a4e3cbd6 100644
--- a/arch/arm/mach-mxs/iomux-imx.c
+++ b/arch/arm/mach-mxs/iomux-imx.c
@@ -75,12 +75,6 @@ static unsigned calc_output_reg(unsigned no)
 	return  ((no >> 5) << 4) + HW_PINCTRL_DOUT0;
 }
 
-static unsigned calc_input_reg(unsigned no)
-{
-	/* each register controls 32 pads */
-	return  ((no >> 5) << 4) + HW_PINCTRL_DIN0;
-}
-
 /**
  * @param[in] m One pin define per call from iomux-mx23.h/iomux-mx28.h
  */
@@ -168,57 +162,3 @@ void imx_gpio_mode(uint32_t m)
 		}
 	}
 }
-
-int gpio_direction_input(unsigned gpio)
-{
-	unsigned reg_offset;
-
-	if (gpio > MAX_GPIO_NO)
-		return -EINVAL;
-
-	reg_offset = calc_output_enable_reg(gpio);
-	writel(0x1 << (gpio % 32), IMX_IOMUXC_BASE + reg_offset + STMP_OFFSET_REG_CLR);
-
-	return 0;
-}
-
-int gpio_direction_output(unsigned gpio, int val)
-{
-	unsigned reg_offset;
-
-	if (gpio > MAX_GPIO_NO)
-		return -EINVAL;
-
-	/* first set the output value... */
-	reg_offset = calc_output_reg(gpio);
-	writel(0x1 << (gpio % 32), IMX_IOMUXC_BASE +
-		reg_offset + (val != 0 ? STMP_OFFSET_REG_SET : STMP_OFFSET_REG_CLR));
-	/* ...then the direction */
-	reg_offset = calc_output_enable_reg(gpio);
-	writel(0x1 << (gpio % 32), IMX_IOMUXC_BASE + reg_offset + STMP_OFFSET_REG_SET);
-
-	return 0;
-}
-
-void gpio_set_value(unsigned gpio, int val)
-{
-	unsigned reg_offset;
-
-	reg_offset = calc_output_reg(gpio);
-	writel(0x1 << (gpio % 32), IMX_IOMUXC_BASE +
-				reg_offset + (val != 0 ?
-					STMP_OFFSET_REG_SET : STMP_OFFSET_REG_CLR));
-}
-
-int gpio_get_value(unsigned gpio)
-{
-	uint32_t reg;
-	unsigned reg_offset;
-
-	reg_offset = calc_input_reg(gpio);
-	reg = readl(IMX_IOMUXC_BASE + reg_offset);
-	if (reg & (0x1 << (gpio % 32)))
-		return 1;
-
-	return 0;
-}