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arm/imx/gpio: GPIO_INT_{HIGH,LOW}_LEV are not necessarily constant

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GPIO_INT_LOW_LEV is defined as

	(cpu_is_mx1_mx2() ? 0x3 : 0x0)

so depending on compiler optimisation and enabled SoCs this doesn't
qualify as a constant expression as needed by a switch statement.
Ditto for GPIO_INT_HIGH_LEV.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
This commit is contained in:
Uwe Kleine-König 2010-02-05 22:14:37 +01:00
parent 4a50d00cb9
commit 3d40f7fef4
1 changed files with 3 additions and 6 deletions
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9
arch/arm/plat-mxc/gpio.c
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@ -140,16 +140,13 @@ static void mxc_flip_edge(struct mxc_gpio_port *port, u32 gpio)
val = __raw_readl(reg);
edge = (val >> (bit << 1)) & 3;
val &= ~(0x3 << (bit << 1));
switch (edge) {
case GPIO_INT_HIGH_LEV:
if (edge == GPIO_INT_HIGH_LEV) {
edge = GPIO_INT_LOW_LEV;
pr_debug("mxc: switch GPIO %d to low trigger\n", gpio);
break;
case GPIO_INT_LOW_LEV:
} else if (edge == GPIO_INT_LOW_LEV) {
edge = GPIO_INT_HIGH_LEV;
pr_debug("mxc: switch GPIO %d to high trigger\n", gpio);
break;
default:
} else {
pr_err("mxc: invalid configuration for GPIO %d: %x\n",
gpio, edge);
return;