[ARM] pxa/pcm990: use negative number for an invalid GPIO in camera data

0 is a valid GPIO number, use a negative number to specify, that this camera
doesn't have a GPIO for bus-width switching.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Eric Miao <eric.miao@marvell.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c
index f601425f1b1e..b36cec5c9eed 100644
--- a/arch/arm/mach-pxa/pcm990-baseboard.c
+++ b/arch/arm/mach-pxa/pcm990-baseboard.c
@@ -385,6 +385,7 @@ static struct soc_camera_link iclink[] = {
                 .gpio   = NR_BUILTIN_GPIO + 1,
         }, {
                 .bus_id = 0, /* Must match with the camera ID above */
+                .gpio   = -ENXIO,
         }
 };