ARM: imx: enable pinctrl dummy states

Enable pinctrl dummy states for imx platforms without pinctrl
support.

Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Dong Aisheng <dong.aisheng@linaro.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/mach-imx/mm-imx21.c b/arch/arm/mach-imx/mm-imx21.c
index 14d540edfd1e..5f43905e5290 100644
--- a/arch/arm/mach-imx/mm-imx21.c
+++ b/arch/arm/mach-imx/mm-imx21.c
@@ -20,6 +20,7 @@
 
 #include <linux/mm.h>
 #include <linux/init.h>
+#include <linux/pinctrl/machine.h>
 #include <mach/hardware.h>
 #include <mach/common.h>
 #include <mach/devices-common.h>
@@ -88,6 +89,7 @@ void __init imx21_soc_init(void)
         mxc_register_gpio("imx21-gpio", 4, MX21_GPIO5_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
         mxc_register_gpio("imx21-gpio", 5, MX21_GPIO6_BASE_ADDR, SZ_256, MX21_INT_GPIO, 0);
 
+        pinctrl_provide_dummies();
         imx_add_imx_dma();
         platform_device_register_simple("imx21-audmux", 0, imx21_audmux_res,
                                         ARRAY_SIZE(imx21_audmux_res));