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Commit eee2b94f authored by Ben Dooks's avatar Ben Dooks
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ARM: S3C24XX: Remove s3c2410_gpio_setcfg() 



Remove the implementation of s3c2410_gpio_setcfg() as it should now be
functionally equivalent to s3c_gpio_cfgpin(), and add a wrapper for those
drivers that are still using this call.

Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent 40b956f0

arch/arm/mach-s3c2410/include/mach/gpio-fns.h

+24 −11
Original line number Diff line number Diff line
@@ -10,14 +10,28 @@ 
 * published by the Free Software Foundation.

*/



#ifndef __MACH_GPIO_FNS_H

#define __MACH_GPIO_FNS_H __FILE__



/* These functions are in the to-be-removed category and it is strongly

 * encouraged not to use these in new code. They will be marked deprecated

 * very soon.

 *

 * Most of the functionality can be either replaced by the gpiocfg calls

 * for the s3c platform or by the generic GPIOlib API.

 *

 * As of 2.6.35-rc, these will be removed, with the few drivers using them

 * either replaced or given a wrapper until the calls can be removed.

*/



#include <plat/gpio-cfg.h>



static inline void s3c2410_gpio_cfgpin(unsigned int pin, unsigned int cfg)

{

	/* 1:1 mapping between cfgpin and setcfg calls at the moment */

	s3c_gpio_cfgpin(pin, cfg);

}



/* external functions for GPIO support

 *

 * These allow various different clients to access the same GPIO
@@ -25,17 +39,6 @@ 
 * GPIO register, then it is safe to ioremap/__raw_{read|write} to it.

*/



/* s3c2410_gpio_cfgpin

 *

 * set the configuration of the given pin to the value passed.

 *

 * eg:

 *    s3c2410_gpio_cfgpin(S3C2410_GPA(0), S3C2410_GPA0_ADDR0);

 *    s3c2410_gpio_cfgpin(S3C2410_GPE(8), S3C2410_GPE8_SDDAT1);

*/



extern void s3c2410_gpio_cfgpin(unsigned int pin, unsigned int function);



extern unsigned int s3c2410_gpio_getcfg(unsigned int pin);



/* s3c2410_gpio_getirq
@@ -71,6 +74,14 @@ extern int s3c2400_gpio_getirq(unsigned int pin); 
extern int s3c2410_gpio_irqfilter(unsigned int pin, unsigned int on,

				  unsigned int config);



/* s3c2410_gpio_pullup

 *

 * This call should be replaced with s3c_gpio_setpull().

 *

 * As a note, there is currently no distinction between pull-up and pull-down

 * in the s3c24xx series devices with only an on/off configuration.

 */



/* s3c2410_gpio_pullup

 *

 * configure the pull-up control on the given pin
@@ -101,3 +112,5 @@ extern int s3c2410_gpio_getpull(unsigned int pin); 
extern void s3c2410_gpio_setpin(unsigned int pin, unsigned int to);



extern unsigned int s3c2410_gpio_getpin(unsigned int pin);



#endif /* __MACH_GPIO_FNS_H */

arch/arm/plat-s3c24xx/gpio.c

+0 −48
Original line number Diff line number Diff line
@@ -34,54 +34,6 @@ 


#include <mach/regs-gpio.h>



void s3c2410_gpio_cfgpin(unsigned int pin, unsigned int function)

{

	void __iomem *base = S3C24XX_GPIO_BASE(pin);

	unsigned long mask;

	unsigned long con;

	unsigned long flags;



	if (pin < S3C2410_GPIO_BANKB) {

		mask = 1 << S3C2410_GPIO_OFFSET(pin);

	} else {

		mask = 3 << S3C2410_GPIO_OFFSET(pin)*2;

	}



	switch (function) {

	case S3C2410_GPIO_LEAVE:

		mask = 0;

		function = 0;

		break;



	case S3C2410_GPIO_INPUT:

	case S3C2410_GPIO_OUTPUT:

	case S3C2410_GPIO_SFN2:

	case S3C2410_GPIO_SFN3:

		if (pin < S3C2410_GPIO_BANKB) {

			function -= 1;

			function &= 1;

			function <<= S3C2410_GPIO_OFFSET(pin);

		} else {

			function &= 3;

			function <<= S3C2410_GPIO_OFFSET(pin)*2;

		}

	}



	/* modify the specified register wwith IRQs off */



	local_irq_save(flags);



	con  = __raw_readl(base + 0x00);

	con &= ~mask;

	con |= function;



	__raw_writel(con, base + 0x00);



	local_irq_restore(flags);

}



EXPORT_SYMBOL(s3c2410_gpio_cfgpin);



unsigned int s3c2410_gpio_getcfg(unsigned int pin)

{

	void __iomem *base = S3C24XX_GPIO_BASE(pin);