From: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
To: Lee Jones <lee.jones@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Alexandre Belloni <alexandre.belloni@free-electrons.com>,
Matthias Brugger <matthias.bgg@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
Eddie Huang <eddie.huang@mediatek.com>,
Sean Wang <sean.wang@mediatek.com>,
Alessandro Zummo <a.zummo@towertech.it>,
Tianping Fang <tianping.fang@mediatek.com>,
Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>,
Thomas Gleixner <tglx@linutronix.de>,
Josef Friedl <josef.friedl@speed.at>,
Kate Stewart <kstewart@linuxfoundation.org>,
Ran Bi <ran.bi@mediatek.com>,
Frank Wunderlich <frank-w@public-files.de>,
<devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linux-rtc@vger.kernel.org>,
<srv_heupstream@mediatek.com>
Subject: [PATCH v7 6/6] rtc: Add support for the MediaTek MT6358 RTC
Date: Wed, 11 Dec 2019 17:43:55 +0800 [thread overview]
Message-ID: <1576057435-3561-7-git-send-email-hsin-hsiung.wang@mediatek.com> (raw)
In-Reply-To: <1576057435-3561-1-git-send-email-hsin-hsiung.wang@mediatek.com>
From: Ran Bi <ran.bi@mediatek.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@mediatek.com>
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
drivers/rtc/rtc-mt6397.c | 24 ++++++++++++++++--------
include/linux/mfd/mt6397/rtc.h | 16 +++++++++++++++-
2 files changed, 31 insertions(+), 9 deletions(-)
diff --git a/drivers/rtc/rtc-mt6397.c b/drivers/rtc/rtc-mt6397.c
index 9135e21..6ca54f9 100644
--- a/drivers/rtc/rtc-mt6397.c
+++ b/drivers/rtc/rtc-mt6397.c
@@ -15,12 +15,24 @@
#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;
@@ -269,6 +281,9 @@ 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;
@@ -333,13 +348,6 @@ 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 7dfb63b..8810e6f 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)
@@ -65,6 +66,10 @@
#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;
@@ -74,6 +79,15 @@ 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
next prev parent reply other threads:[~2019-12-11 9:44 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-11 9:43 [PATCH v7 0/6] Add Support for MediaTek PMIC MT6358 Hsin-Hsiung Wang
2019-12-11 9:43 ` [PATCH v7 1/6] mfd: mt6397: modify suspend/resume behavior Hsin-Hsiung Wang
2019-12-16 15:20 ` Lee Jones
2019-12-11 9:43 ` [PATCH v7 2/6] dt-bindings: mfd: Add compatible for the MediaTek MT6358 PMIC Hsin-Hsiung Wang
2019-12-11 9:43 ` [PATCH v7 3/6] mfd: Add support " Hsin-Hsiung Wang
2019-12-16 15:17 ` Lee Jones
2020-01-22 3:48 ` Hsin-hsiung Wang
2020-02-03 7:46 ` Lee Jones
2019-12-11 9:43 ` [PATCH v7 4/6] arm64: dts: mt6358: add PMIC MT6358 related nodes Hsin-Hsiung Wang
2019-12-11 9:43 ` [PATCH v7 5/6] rtc: mt6397: fix alarm register overwrite Hsin-Hsiung Wang
2019-12-11 12:25 ` Alexandre Belloni
2019-12-11 9:43 ` Hsin-Hsiung Wang [this message]
2019-12-11 12:27 ` [PATCH v7 6/6] rtc: Add support for the MediaTek MT6358 RTC Alexandre Belloni
2019-12-16 15:21 ` Lee Jones
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