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Date: Mon, 3 Feb 2020 19:40:43 +0800 From: Hsin-Hsiung Wang <hsin-hsiung.wang@...iatek.com> To: Lee Jones <lee.jones@...aro.org>, Rob Herring <robh+dt@...nel.org>, Alexandre Belloni <alexandre.belloni@...tlin.com>, Matthias Brugger <matthias.bgg@...il.com> CC: Mark Rutland <mark.rutland@....com>, Eddie Huang <eddie.huang@...iatek.com>, Sean Wang <sean.wang@...iatek.com>, Alessandro Zummo <a.zummo@...ertech.it>, Hsin-Hsiung Wang <hsin-hsiung.wang@...iatek.com>, Richard Fontana <rfontana@...hat.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Josef Friedl <josef.friedl@...ed.at>, Thomas Gleixner <tglx@...utronix.de>, Ran Bi <ran.bi@...iatek.com>, Frank Wunderlich <frank-w@...lic-files.de>, <devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-mediatek@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, <linux-rtc@...r.kernel.org>, <srv_heupstream@...iatek.com> Subject: [PATCH v8 4/5] rtc: mt6397: Add support for the MediaTek MT6358 RTC From: Ran Bi <ran.bi@...iatek.com> This add support for the MediaTek MT6358 RTC. Driver using compatible data to store different RTC_WRTGR address offset. Signed-off-by: Ran Bi <ran.bi@...iatek.com> Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@...iatek.com> --- drivers/rtc/rtc-mt6397.c | 25 +++++++++++++++++-------- include/linux/mfd/mt6397/rtc.h | 16 +++++++++++++++- 2 files changed, 32 insertions(+), 9 deletions(-) diff --git a/drivers/rtc/rtc-mt6397.c b/drivers/rtc/rtc-mt6397.c index 5249fc9..a90735e1 100644 --- a/drivers/rtc/rtc-mt6397.c +++ b/drivers/rtc/rtc-mt6397.c @@ -9,18 +9,31 @@ #include <linux/mfd/mt6397/core.h> #include <linux/module.h> #include <linux/mutex.h> +#include <linux/of_device.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/rtc.h> #include <linux/mfd/mt6397/rtc.h> #include <linux/mod_devicetable.h> +static const struct of_device_id mt6397_rtc_of_match[] = { + { .compatible = "mediatek,mt6323-rtc", + .data = (void *)&mt6397_rtc_data, }, + { .compatible = "mediatek,mt6358-rtc", + .data = (void *)&mt6358_rtc_data, }, + { .compatible = "mediatek,mt6397-rtc", + .data = (void *)&mt6397_rtc_data, }, + {} +}; +MODULE_DEVICE_TABLE(of, mt6397_rtc_of_match); + static int mtk_rtc_write_trigger(struct mt6397_rtc *rtc) { int ret; u32 data; - ret = regmap_write(rtc->regmap, rtc->addr_base + RTC_WRTGR, 1); + ret = regmap_write(rtc->regmap, + rtc->addr_base + rtc->data->wrtgr, 1); if (ret < 0) return ret; @@ -258,6 +271,9 @@ static int mtk_rtc_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); rtc->addr_base = res->start; + rtc->data = (struct mtk_rtc_data *) + of_device_get_match_data(&pdev->dev); + rtc->irq = platform_get_irq(pdev, 0); if (rtc->irq < 0) return rtc->irq; @@ -322,13 +338,6 @@ static int mt6397_rtc_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(mt6397_pm_ops, mt6397_rtc_suspend, mt6397_rtc_resume); -static const struct of_device_id mt6397_rtc_of_match[] = { - { .compatible = "mediatek,mt6323-rtc", }, - { .compatible = "mediatek,mt6397-rtc", }, - { } -}; -MODULE_DEVICE_TABLE(of, mt6397_rtc_of_match); - static struct platform_driver mtk_rtc_driver = { .driver = { .name = "mt6397-rtc", diff --git a/include/linux/mfd/mt6397/rtc.h b/include/linux/mfd/mt6397/rtc.h index f84b916..fffe34a 100644 --- a/include/linux/mfd/mt6397/rtc.h +++ b/include/linux/mfd/mt6397/rtc.h @@ -18,7 +18,8 @@ #define RTC_BBPU_CBUSY BIT(6) #define RTC_BBPU_KEY (0x43 << 8) -#define RTC_WRTGR 0x003c +#define RTC_WRTGR_MT6358 0x3a +#define RTC_WRTGR_MT6397 0x3c #define RTC_IRQ_STA 0x0002 #define RTC_IRQ_STA_AL BIT(0) @@ -57,6 +58,10 @@ #define MTK_RTC_POLL_DELAY_US 10 #define MTK_RTC_POLL_TIMEOUT (jiffies_to_usecs(HZ)) +struct mtk_rtc_data { + u32 wrtgr; +}; + struct mt6397_rtc { struct device *dev; struct rtc_device *rtc_dev; @@ -66,6 +71,15 @@ struct mt6397_rtc { struct regmap *regmap; int irq; u32 addr_base; + const struct mtk_rtc_data *data; +}; + +static const struct mtk_rtc_data mt6358_rtc_data = { + .wrtgr = RTC_WRTGR_MT6358, +}; + +static const struct mtk_rtc_data mt6397_rtc_data = { + .wrtgr = RTC_WRTGR_MT6397, }; #endif /* _LINUX_MFD_MT6397_RTC_H_ */ -- 2.6.4
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