arm/imx/gpio: GPIO_INT_{HIGH,LOW}_LEV are not necessarily constant
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>
diff --git a/arch/arm/plat-mxc/gpio.c b/arch/arm/plat-mxc/gpio.c
index d65ebe3..3cba1dd 100644
--- a/arch/arm/plat-mxc/gpio.c
+++ b/arch/arm/plat-mxc/gpio.c
@@ -140,16 +140,13 @@
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;