Commit 3911dab8 authored by Ben Dooks's avatar Ben Dooks Committed by Kukjin Kim
Browse files

ARM: SAMSUNG: Add helper to clone and set platform data 



This is intended to replace a number of sites in the Samsung kernel
where the same thing is being repeated in specific platform setting
code. See next patches for replacements.

Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
[kgene.kim@samsung.com: This is for building test]
Signed-off-by: default avatarKukjin Kim <kgene.kim@samsung.com>
parent 5db2bc8a

arch/arm/plat-samsung/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -30,6 +30,8 @@ obj-$(CONFIG_S3C_ADC) += adc.o 


# devices



obj-y				+= platformdata.o



obj-$(CONFIG_S3C_DEV_HSMMC)	+= dev-hsmmc.o

obj-$(CONFIG_S3C_DEV_HSMMC1)	+= dev-hsmmc1.o

obj-$(CONFIG_S3C_DEV_HSMMC2)	+= dev-hsmmc2.o

arch/arm/plat-samsung/include/plat/devs.h

+12 −0
Original line number Diff line number Diff line
@@ -108,3 +108,15 @@ extern struct platform_device s3c_device_camif; 
extern struct platform_device s3c_device_ac97;



#endif



/**

 * s3c_set_platdata() - helper for setting platform data

 * @pd: The default platform data for this device.

 * @pdsize: The size of the platform data.

 * @pdev: Pointer to the device to fill in.

 *

 * This helper replaces a number of calls that copy and then set the

 * platform data of the device.

 */

extern void *s3c_set_platdata(void *pd, size_t pdsize,

			      struct platform_device *pdev);

arch/arm/plat-samsung/platformdata.c

0 → 100644
+37 −0
Original line number Diff line number Diff line 
/* linux/arch/arm/plat-samsung/platformdata.c

 *

 * Copyright 2010 Ben Dooks <ben-linux <at> fluff.org>

 *

 * Helper for platform data setting

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

*/



#include <linux/kernel.h>

#include <linux/string.h>

#include <linux/platform_device.h>



#include <plat/devs.h>



void __init *s3c_set_platdata(void *pd, size_t pdsize,

			      struct platform_device *pdev)

{

	void *npd;



	if (!pd) {

		/* too early to use dev_name(), may not be registered */

		printk(KERN_ERR "%s: no platform data supplied\n", pdev->name);

		return NULL;

	}



	npd = kmemdup(pd, pdsize, GFP_KERNEL);

	if (!npd) {

		printk(KERN_ERR "%s: cannot clone platform data\n", pdev->name);

		return NULL;

	}



	pdev->dev.platform_data = npd;

	return npd;

}