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Message-ID: <20190820194803.GW3545@piout.net>
Date: Tue, 20 Aug 2019 21:48:03 +0200
From: Alexandre Belloni <alexandre.belloni@...tlin.com>
To: Frank Wunderlich <frank-w@...lic-files.de>
Cc: linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
"linux-arm-kernel @ lists . infradead . org Alessandro Zummo"
<a.zummo@...ertech.it>, Eddie Huang <eddie.huang@...iatek.com>,
Josef Friedl <josef.friedl@...ed.at>,
Lee Jones <lee.jones@...aro.org>,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-pm@...r.kernel.org, linux-rtc@...r.kernel.org,
Mark Rutland <mark.rutland@....com>,
Matthias Brugger <matthias.bgg@...il.com>,
Rob Herring <robh+dt@...nel.org>,
Sean Wang <sean.wang@...iatek.com>,
Sebastian Reichel <sre@...nel.org>,
Tianping Fang <tianping.fang@...iatek.com>
Subject: Re: [PATCH v6 05/13] rtc: mt6397: move some common definitions into
rtc.h
On 18/08/2019 15:56:03+0200, Frank Wunderlich wrote:
> From: Josef Friedl <josef.friedl@...ed.at>
>
> move code to separate header-file to reuse definitions later
> in poweroff-driver (drivers/power/reset/mt6323-poweroff.c)
>
> Suggested-by: Frank Wunderlich <frank-w@...lic-files.de>
> Signed-off-by: Josef Friedl <josef.friedl@...ed.at>
> Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
Acked-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
> ---
> changes since v5: none
> changes since v4: none
> changes since v3: none
> changes since v2: add missing commit-message
> ---
> drivers/rtc/rtc-mt6397.c | 55 +-------------------------
> include/linux/mfd/mt6397/rtc.h | 71 ++++++++++++++++++++++++++++++++++
> 2 files changed, 72 insertions(+), 54 deletions(-)
> create mode 100644 include/linux/mfd/mt6397/rtc.h
>
> diff --git a/drivers/rtc/rtc-mt6397.c b/drivers/rtc/rtc-mt6397.c
> index b46ed4dc7015..c08ee5edf865 100644
> --- a/drivers/rtc/rtc-mt6397.c
> +++ b/drivers/rtc/rtc-mt6397.c
> @@ -9,60 +9,7 @@
> #include <linux/module.h>
> #include <linux/regmap.h>
> #include <linux/rtc.h>
> -#include <linux/irqdomain.h>
> -#include <linux/platform_device.h>
> -#include <linux/of_address.h>
> -#include <linux/of_irq.h>
> -#include <linux/io.h>
> -#include <linux/mfd/mt6397/core.h>
> -
> -#define RTC_BBPU 0x0000
> -#define RTC_BBPU_CBUSY BIT(6)
> -
> -#define RTC_WRTGR 0x003c
> -
> -#define RTC_IRQ_STA 0x0002
> -#define RTC_IRQ_STA_AL BIT(0)
> -#define RTC_IRQ_STA_LP BIT(3)
> -
> -#define RTC_IRQ_EN 0x0004
> -#define RTC_IRQ_EN_AL BIT(0)
> -#define RTC_IRQ_EN_ONESHOT BIT(2)
> -#define RTC_IRQ_EN_LP BIT(3)
> -#define RTC_IRQ_EN_ONESHOT_AL (RTC_IRQ_EN_ONESHOT | RTC_IRQ_EN_AL)
> -
> -#define RTC_AL_MASK 0x0008
> -#define RTC_AL_MASK_DOW BIT(4)
> -
> -#define RTC_TC_SEC 0x000a
> -/* Min, Hour, Dom... register offset to RTC_TC_SEC */
> -#define RTC_OFFSET_SEC 0
> -#define RTC_OFFSET_MIN 1
> -#define RTC_OFFSET_HOUR 2
> -#define RTC_OFFSET_DOM 3
> -#define RTC_OFFSET_DOW 4
> -#define RTC_OFFSET_MTH 5
> -#define RTC_OFFSET_YEAR 6
> -#define RTC_OFFSET_COUNT 7
> -
> -#define RTC_AL_SEC 0x0018
> -
> -#define RTC_PDN2 0x002e
> -#define RTC_PDN2_PWRON_ALARM BIT(4)
> -
> -#define RTC_MIN_YEAR 1968
> -#define RTC_BASE_YEAR 1900
> -#define RTC_NUM_YEARS 128
> -#define RTC_MIN_YEAR_OFFSET (RTC_MIN_YEAR - RTC_BASE_YEAR)
> -
> -struct mt6397_rtc {
> - struct device *dev;
> - struct rtc_device *rtc_dev;
> - struct mutex lock;
> - struct regmap *regmap;
> - int irq;
> - u32 addr_base;
> -};
> +#include <linux/mfd/mt6397/rtc.h>
>
> static int mtk_rtc_write_trigger(struct mt6397_rtc *rtc)
> {
> diff --git a/include/linux/mfd/mt6397/rtc.h b/include/linux/mfd/mt6397/rtc.h
> new file mode 100644
> index 000000000000..b702c29e8c74
> --- /dev/null
> +++ b/include/linux/mfd/mt6397/rtc.h
> @@ -0,0 +1,71 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (C) 2014-2018 MediaTek Inc.
> + *
> + * Author: Tianping.Fang <tianping.fang@...iatek.com>
> + * Sean Wang <sean.wang@...iatek.com>
> + */
> +
> +#ifndef _LINUX_MFD_MT6397_RTC_H_
> +#define _LINUX_MFD_MT6397_RTC_H_
> +
> +#include <linux/jiffies.h>
> +#include <linux/mutex.h>
> +#include <linux/regmap.h>
> +#include <linux/rtc.h>
> +
> +#define RTC_BBPU 0x0000
> +#define RTC_BBPU_CBUSY BIT(6)
> +#define RTC_BBPU_KEY (0x43 << 8)
> +
> +#define RTC_WRTGR 0x003c
> +
> +#define RTC_IRQ_STA 0x0002
> +#define RTC_IRQ_STA_AL BIT(0)
> +#define RTC_IRQ_STA_LP BIT(3)
> +
> +#define RTC_IRQ_EN 0x0004
> +#define RTC_IRQ_EN_AL BIT(0)
> +#define RTC_IRQ_EN_ONESHOT BIT(2)
> +#define RTC_IRQ_EN_LP BIT(3)
> +#define RTC_IRQ_EN_ONESHOT_AL (RTC_IRQ_EN_ONESHOT | RTC_IRQ_EN_AL)
> +
> +#define RTC_AL_MASK 0x0008
> +#define RTC_AL_MASK_DOW BIT(4)
> +
> +#define RTC_TC_SEC 0x000a
> +/* Min, Hour, Dom... register offset to RTC_TC_SEC */
> +#define RTC_OFFSET_SEC 0
> +#define RTC_OFFSET_MIN 1
> +#define RTC_OFFSET_HOUR 2
> +#define RTC_OFFSET_DOM 3
> +#define RTC_OFFSET_DOW 4
> +#define RTC_OFFSET_MTH 5
> +#define RTC_OFFSET_YEAR 6
> +#define RTC_OFFSET_COUNT 7
> +
> +#define RTC_AL_SEC 0x0018
> +
> +#define RTC_PDN2 0x002e
> +#define RTC_PDN2_PWRON_ALARM BIT(4)
> +
> +#define RTC_MIN_YEAR 1968
> +#define RTC_BASE_YEAR 1900
> +#define RTC_NUM_YEARS 128
> +#define RTC_MIN_YEAR_OFFSET (RTC_MIN_YEAR - RTC_BASE_YEAR)
> +
> +#define MTK_RTC_POLL_DELAY_US 10
> +#define MTK_RTC_POLL_TIMEOUT (jiffies_to_usecs(HZ))
> +
> +struct mt6397_rtc {
> + struct device *dev;
> + struct rtc_device *rtc_dev;
> +
> + /* Protect register access from multiple tasks */
> + struct mutex lock;
> + struct regmap *regmap;
> + int irq;
> + u32 addr_base;
> +};
> +
> +#endif /* _LINUX_MFD_MT6397_RTC_H_ */
> --
> 2.17.1
>
--
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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