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STM378x: Parameterize the max. possible GPIO number 

This is for easier integration of the i.MX28 architecture (to share the code
later on).

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Juergen Beisert 2010-12-13 11:53:28 +01:00 committed by Sascha Hauer
parent e4f17bd394
commit 814f17253c
1 changed files with 3 additions and 1 deletions
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4
arch/arm/mach-stm/iomux-imx23.c
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@ -31,6 +31,8 @@
#define HW_PINCTRL_DIN0 0x600
#define HW_PINCTRL_DOE0 0x700
#define MAX_GPIO_NO 95
static uint32_t calc_mux_reg(uint32_t no)
{
/* each register controls 16 pads */
@ -77,7 +79,7 @@ void imx_gpio_mode(unsigned m)
writel(reg, IMX_IOMUXC_BASE + reg_offset);
/* some pins are disabled when configured for GPIO */
if ((gpio_pin > 95) && (GET_FUNC(m) == IS_GPIO)) {
if ((gpio_pin > MAX_GPIO_NO) && (GET_FUNC(m) == IS_GPIO)) {
printf("Cannot configure pad %d to GPIO\n", gpio_pin);
return;
}