powerpc/qe_lib: Set gpio data before changing the direction to output

This avoids having a short glitch if the desired initial value is not
the same as what was previously in the data register.

Signed-off-by: Michael Barkowski <michaelbarkowski@ruggedcom.com>
Acked-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

diff --git a/arch/powerpc/sysdev/qe_lib/gpio.c b/arch/powerpc/sysdev/qe_lib/gpio.c
index 3485288..8e7a776 100644 (file)
--- a/arch/powerpc/sysdev/qe_lib/gpio.c
+++ b/arch/powerpc/sysdev/qe_lib/gpio.c
@@ -105,14 +105,14 @@ static int qe_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
        struct qe_gpio_chip *qe_gc = to_qe_gpio_chip(mm_gc);
        unsigned long flags;
 
+       qe_gpio_set(gc, gpio, val);
+
        spin_lock_irqsave(&qe_gc->lock, flags);
 
        __par_io_config_pin(mm_gc->regs, gpio, QE_PIO_DIR_OUT, 0, 0, 0);
 
        spin_unlock_irqrestore(&qe_gc->lock, flags);
 
-       qe_gpio_set(gc, gpio, val);
-
        return 0;
 }