[ARM] 5300/1: fixup spitz reset during boot

Some machines don't have the pullup/down on their reset
pin, so configuring the reset generating pin as input makes
them reset immediately. Fix that by making reset pin direction
configurable.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 6 insertions, 3 deletions

diff --git a/arch/arm/mach-pxa/reset.c b/arch/arm/mach-pxa/reset.c
index 31d78855aac8..1b2af575c40f 100644
--- a/arch/arm/mach-pxa/reset.c
+++ b/arch/arm/mach-pxa/reset.c
@@ -20,7 +20,7 @@ static void do_hw_reset(void);
 
 static int reset_gpio = -1;
 
-int init_gpio_reset(int gpio)
+int init_gpio_reset(int gpio, int output)
 {
         int rc;
 
@@ -30,9 +30,12 @@ int init_gpio_reset(int gpio)
                 goto out;
         }
 
-        rc = gpio_direction_input(gpio);
+        if (output)
+                rc = gpio_direction_output(gpio, 0);
+        else
+                rc = gpio_direction_input(gpio);
         if (rc) {
-                printk(KERN_ERR "Can't configure reset_gpio for input\n");
+                printk(KERN_ERR "Can't configure reset_gpio\n");
                 gpio_free(gpio);
                 goto out;
         }