ARM: OMAP: mcbsp: Convert core driver to proper platform driver

Convert the plat-omap/mcbsp.c driver to be proper platform driver.
Remove the omap_mcbsp_init function call which was called from
mach-omap1/2/mcbsp.c to register the platform driver for the just
created platform device in the same function.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Tested-by: Grazvydas Ignotas <notasas@gmail.com>
Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Liam Girdwood <lrg@ti.com>

arch/arm/mach-omap1/mcbsp.c

@@ -449,7 +449,7 @@ static int __init omap1_mcbsp_init(void)
 					omap16xx_mcbsp_pdata,
 					OMAP16XX_MCBSP_COUNT);
 
-	return omap_mcbsp_init();
+	return 0;
 }
 
 arch_initcall(omap1_mcbsp_init);

arch/arm/mach-omap2/mcbsp.c

@@ -193,6 +193,6 @@ static int __init omap2_mcbsp_init(void)
 	if (!mcbsp_ptr)
 		return -ENOMEM;
 
-	return omap_mcbsp_init();
+	return 0;
 }
 arch_initcall(omap2_mcbsp_init);

arch/arm/plat-omap/include/plat/mcbsp.h

@@ -360,7 +360,6 @@ struct omap_mcbsp_dev_attr {
 extern struct omap_mcbsp **mcbsp_ptr;
 extern int omap_mcbsp_count;
 
-int omap_mcbsp_init(void);
 void omap_mcbsp_config(unsigned int id, const struct omap_mcbsp_reg_cfg * config);
 void omap_mcbsp_set_tx_threshold(unsigned int id, u16 threshold);
 void omap_mcbsp_set_rx_threshold(unsigned int id, u16 threshold);

arch/arm/plat-omap/mcbsp.c

@@ -1354,8 +1354,9 @@ static struct platform_driver omap_mcbsp_driver = {
 	},
 };
 
-int __init omap_mcbsp_init(void)
-{
-	/* Register the McBSP driver */
-	return platform_driver_register(&omap_mcbsp_driver);
-}
+module_platform_driver(omap_mcbsp_driver);
+
+MODULE_AUTHOR("Samuel Ortiz <samuel.ortiz@nokia.com>");
+MODULE_DESCRIPTION("OMAP McBSP core driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:omap-mcbsp");