diff options
| author | Ran Bi <ran.bi@mediatek.com> | 2020-04-21 11:00:11 +0800 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2020-05-21 08:55:48 +0100 |
| commit | 29ee40091e27615530c0ba7773a2879d8266381e (patch) | |
| tree | 11eff6d8d7fdd25625d892fe23da5c6a4fa38046 /drivers/rtc | |
| parent | 2b91c28f2abd9471aac4aa6cd8de7896ef469153 (diff) | |
| download | linux-29ee40091e27615530c0ba7773a2879d8266381e.tar.gz | |
rtc: mt6397: Add support for the MediaTek MT6358 RTC
This add support for the MediaTek MT6358 RTC. Driver using
compatible data to store different RTC_WRTGR address offset.
This replace RTC_WRTGR to RTC_WRTGR_MT6323 in mt6323-poweroff
driver which only needed by armv7 CPU without ATF.
Signed-off-by: Ran Bi <ran.bi@mediatek.com>
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-by: Sebastian Reichel <sre@kernel.org>
Reviewed-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-mt6397.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/rtc/rtc-mt6397.c b/drivers/rtc/rtc-mt6397.c index cda238dfe69b..f8b1353777ba 100644 --- a/drivers/rtc/rtc-mt6397.c +++ b/drivers/rtc/rtc-mt6397.c @@ -9,6 +9,7 @@ #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> @@ -20,7 +21,7 @@ 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 +270,8 @@ static int mtk_rtc_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); rtc->addr_base = res->start; + rtc->data = of_device_get_match_data(&pdev->dev); + rtc->irq = platform_get_irq(pdev, 0); if (rtc->irq < 0) return rtc->irq; @@ -325,9 +328,18 @@ 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 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,mt6323-rtc", }, - { .compatible = "mediatek,mt6397-rtc", }, + { .compatible = "mediatek,mt6323-rtc", .data = &mt6397_rtc_data }, + { .compatible = "mediatek,mt6358-rtc", .data = &mt6358_rtc_data }, + { .compatible = "mediatek,mt6397-rtc", .data = &mt6397_rtc_data }, { } }; MODULE_DEVICE_TABLE(of, mt6397_rtc_of_match); |