linux-kernel - [PATCH v2 12/17] rtc: mt6397: move the declaration into a globally visible header file

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Message-ID: <f5a717b840579d9023abc412051a206c54d285c9.1524646231.git.sean.wang@mediatek.com>
Date:   Wed, 25 Apr 2018 17:32:38 +0800
From:   <sean.wang@...iatek.com>
To:     <robh+dt@...nel.org>, <mark.rutland@....com>, <sre@...nel.org>,
        <lee.jones@...aro.org>, <a.zummo@...ertech.it>,
        <alexandre.belloni@...e-electrons.com>, <matthias.bgg@...il.com>,
        <eddie.huang@...iatek.com>
CC:     <devicetree@...r.kernel.org>, <linux-rtc@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-pm@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        "Sean Wang" <sean.wang@...iatek.com>
Subject: [PATCH v2 12/17] rtc: mt6397: move the declaration into a globally visible header file

From: Sean Wang <sean.wang@...iatek.com>

This is in preparation for allowing other drivers can share the
declaration, so move the declaration into a globally visible header file.

Signed-off-by: Sean Wang <sean.wang@...iatek.com>
---
 drivers/rtc/rtc-mt6397.c       | 53 +-------------------------------
 include/linux/mfd/mt6397/rtc.h | 70 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 71 insertions(+), 52 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 91d584a..4c5cdaa 100644
--- a/drivers/rtc/rtc-mt6397.c
+++ b/drivers/rtc/rtc-mt6397.c
@@ -18,63 +18,12 @@
 #include <linux/module.h>
 #include <linux/regmap.h>
 #include <linux/rtc.h>
-#include <linux/jiffies.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)
-
-#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;
-	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 0000000..480977c
--- /dev/null
+++ b/include/linux/mfd/mt6397/rtc.h
@@ -0,0 +1,70 @@
+/* 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_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_ */
-- 
2.7.4