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Fri, 23 Aug 2019 11:45:36 +0800 From: Hsin-Hsiung Wang To: Lee Jones , Rob Herring , "Mark Brown" , Matthias Brugger , Alexandre Belloni Subject: [PATCH v5 10/10] rtc: mt6397: Add support for the MediaTek MT6358 RTC Date: Fri, 23 Aug 2019 11:45:31 +0800 Message-ID: <1566531931-9772-11-git-send-email-hsin-hsiung.wang@mediatek.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1566531931-9772-1-git-send-email-hsin-hsiung.wang@mediatek.com> References: <1566531931-9772-1-git-send-email-hsin-hsiung.wang@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: F0764FDB06D62BEE862D7EA509F66EB2C2B5058E838AAF7CCDC98D4C539255B72000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190822_204547_989420_76548601 X-CRM114-Status: GOOD ( 14.53 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [216.200.240.184 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Alessandro Zummo , srv_heupstream@mediatek.com, devicetree@vger.kernel.org, Greg Kroah-Hartman , Kate Stewart , Sean Wang , Liam Girdwood , linux-kernel@vger.kernel.org, Richard Fontana , linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Thomas Gleixner , Eddie Huang , Ran Bi , Hsin-Hsiung Wang , linux-rtc@vger.kernel.org Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org From: Ran Bi This add support for the MediaTek MT6358 RTC. Driver using compatible data to store different RTC_WRTGR address offset. Signed-off-by: Ran Bi --- drivers/rtc/rtc-mt6397.c | 38 ++++++++++++++++++++++++++++++-------- 1 file changed, 30 insertions(+), 8 deletions(-) diff --git a/drivers/rtc/rtc-mt6397.c b/drivers/rtc/rtc-mt6397.c index 828def7..d1c2886 100644 --- a/drivers/rtc/rtc-mt6397.c +++ b/drivers/rtc/rtc-mt6397.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include #include @@ -19,7 +20,8 @@ #define RTC_BBPU 0x0000 #define RTC_BBPU_CBUSY BIT(6) -#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) @@ -63,6 +65,10 @@ #define RTC_NUM_YEARS 128 #define RTC_MIN_YEAR_OFFSET (RTC_MIN_YEAR - RTC_BASE_YEAR) +struct mtk_rtc_data { + u32 wrtgr; +}; + struct mt6397_rtc { struct device *dev; struct rtc_device *rtc_dev; @@ -70,15 +76,34 @@ 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, +}; + +static const struct of_device_id mt6397_rtc_of_match[] = { + { .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) { unsigned long timeout = jiffies + HZ; 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; @@ -333,6 +358,9 @@ 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; @@ -408,12 +436,6 @@ 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,mt6397-rtc", }, - { } -}; -MODULE_DEVICE_TABLE(of, mt6397_rtc_of_match); - static struct platform_driver mtk_rtc_driver = { .driver = { .name = "mt6397-rtc",