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Commit 7d082baa authored by Guenter Roeck's avatar Guenter Roeck Committed by Lee Jones
Browse files

mfd: ab8500-sysctrl: Drop ab8500_restart 



ab8500_restart is not called from anywhere in the kernel, so drop it.

Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Acked-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent 6bdf891a

drivers/mfd/ab8500-sysctrl.c

+0 −57
Original line number Diff line number Diff line
@@ -85,63 +85,6 @@ static void ab8500_power_off(void) 
	}

}



/*

 * Use the AB WD to reset the platform. It will perform a hard

 * reset instead of a soft reset. Write the reset reason to

 * the AB before reset, which can be read upon restart.

 */

void ab8500_restart(char mode, const char *cmd)

{

	struct ab8500_platform_data *plat;

	struct ab8500_sysctrl_platform_data *pdata;

	u16 reason = 0;

	u8 val;



	if (sysctrl_dev == NULL) {

		pr_err("%s: sysctrl not initialized\n", __func__);

		return;

	}



	plat = dev_get_platdata(sysctrl_dev->parent);

	pdata = plat->sysctrl;

	if (pdata && pdata->reboot_reason_code)

		reason = pdata->reboot_reason_code(cmd);

	else

		pr_warn("[%s] No reboot reason set. Default reason %d\n",

			__func__, reason);



	/*

	 * Disable RTC alarm, just a precaution so that no alarm

	 * is running when WD reset is executed.

	 */

	abx500_get_register_interruptible(sysctrl_dev, AB8500_RTC,

		RTC_CTRL , &val);

	abx500_set_register_interruptible(sysctrl_dev, AB8500_RTC,

		RTC_CTRL , (val & ~RTC_ALARM_ENABLE));



	/*

	 * Android is not using the RTC alarm registers during reboot

	 * so we borrow them for writing the reason of reset

	 */



	/* reason[8 LSB] */

	val = reason & 0xFF;

	abx500_set_register_interruptible(sysctrl_dev, AB8500_RTC,

		AB8500_ALARM_MIN_LOW , val);



	/* reason[8 MSB] */

	val = (reason>>8) & 0xFF;

	abx500_set_register_interruptible(sysctrl_dev, AB8500_RTC,

		AB8500_ALARM_MIN_MID , val);



	/* Setting WD timeout to 0 */

	ab8500_sysctrl_write(AB8500_MAINWDOGTIMER, 0xFF, 0x0);



	/* Setting the parameters to AB8500 WD*/

	ab8500_sysctrl_write(AB8500_MAINWDOGCTRL, 0xFF, (AB8500_ENABLE_WD |

		AB8500_WD_RESTART_ON_EXPIRE | AB8500_KICK_WD));

}



static inline bool valid_bank(u8 bank)

{

	return ((bank == AB8500_SYS_CTRL1_BLOCK) ||

include/linux/mfd/abx500/ab8500-sysctrl.h

+0 −1
Original line number Diff line number Diff line
@@ -12,7 +12,6 @@ 


int ab8500_sysctrl_read(u16 reg, u8 *value);

int ab8500_sysctrl_write(u16 reg, u8 mask, u8 value);

void ab8500_restart(char mode, const char *cmd);



#else