ARM: imx: change the way flexcan devices are registered

Group soc specific data in a global struct instead of repeating it for each
call to imxXX_add_flexcanX.  The structs holding the actual data are placed
in .init.constdata and so don't do much harm.  Compared to the previous
approach this reduces code size to call imx_add_flexcan.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
diff --git a/arch/arm/plat-mxc/include/mach/devices-common.h b/arch/arm/plat-mxc/include/mach/devices-common.h
index a0ac8454..830369e 100644
--- a/arch/arm/plat-mxc/include/mach/devices-common.h
+++ b/arch/arm/plat-mxc/include/mach/devices-common.h
@@ -34,9 +34,14 @@
 		const struct fec_platform_data *pdata);
 
 #include <linux/can/platform/flexcan.h>
-struct platform_device *__init imx_add_flexcan(int id,
-		resource_size_t iobase, resource_size_t iosize,
-		resource_size_t irq,
+struct imx_flexcan_data {
+	int id;
+	resource_size_t iobase;
+	resource_size_t iosize;
+	resource_size_t irq;
+};
+struct platform_device *__init imx_add_flexcan(
+		const struct imx_flexcan_data *data,
 		const struct flexcan_platform_data *pdata);
 
 #include <linux/gpio_keys.h>