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Date: Mon, 3 Nov 2014 18:01:49 +0000
From: Lee Jones <lee.jones@...aro.org>
To: Guenter Roeck <linux@...ck-us.net>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
Linus Walleij <linus.walleij@...aro.org>,
Samuel Ortiz <sameo@...ux.intel.com>
Subject: Re: [PATCH] mfd: ab8500-sysctrl: Drop ab8500_restart
On Thu, 09 Oct 2014, Guenter Roeck wrote:
> ab8500_restart is not called from anywhere in the kernel, so drop it.
>
> Cc: Linus Walleij <linus.walleij@...aro.org>
> Signed-off-by: Guenter Roeck <linux@...ck-us.net>
> ---
> drivers/mfd/ab8500-sysctrl.c | 57 -------------------------------
> include/linux/mfd/abx500/ab8500-sysctrl.h | 1 -
> 2 files changed, 58 deletions(-)
Applied with Linus' Ack.
> diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c
> index 8e0dae5..94dbcdd 100644
> --- a/drivers/mfd/ab8500-sysctrl.c
> +++ b/drivers/mfd/ab8500-sysctrl.c
> @@ -85,63 +85,6 @@ shutdown:
> }
> }
>
> -/*
> - * 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) ||
> diff --git a/include/linux/mfd/abx500/ab8500-sysctrl.h b/include/linux/mfd/abx500/ab8500-sysctrl.h
> index adba89d..6893127 100644
> --- a/include/linux/mfd/abx500/ab8500-sysctrl.h
> +++ b/include/linux/mfd/abx500/ab8500-sysctrl.h
> @@ -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
>
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
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