[PATCH 16/21] usb: fsl_mxc_udc.c: Fix build issue by including missing header file

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From: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>

Fix the following build error:

CC [M]  drivers/usb/gadget/fsl_mxc_udc.o
drivers/usb/gadget/fsl_mxc_udc.c: In function 'fsl_udc_clk_finalize':
drivers/usb/gadget/fsl_mxc_udc.c:98: error: implicit declaration of function 'readl'
drivers/usb/gadget/fsl_mxc_udc.c:100: error: implicit declaration of function 'writel'

This error is caused by the follwing commit:
(16fcb63: arm/imx: remove mx31_setup_weimcs( ) from mx31.h)

,which removed '#include <linux/io.h>' from mx31.h.

fsl_mxc_udc.c includes <mach/hardware.h>, which in turns includes mx31.h, so
that's the reason fsl_mxc_udc.c built fine previously.

Instead of relying on the indirect inclusion of the linux/io.h header file,
include it directly in fsl_mxc_udc.c.

Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
 drivers/usb/gadget/fsl_mxc_udc.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/gadget/fsl_mxc_udc.c b/drivers/usb/gadget/fsl_mxc_udc.c
index 43a49ec..23eaecf 100644
--- a/drivers/usb/gadget/fsl_mxc_udc.c
+++ b/drivers/usb/gadget/fsl_mxc_udc.c
@@ -16,6 +16,7 @@
 #include <linux/err.h>
 #include <linux/fsl_devices.h>
 #include <linux/platform_device.h>
+#include <linux/io.h>
 
 #include <mach/hardware.h>
 
-- 
1.7.7.3

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