-----Original Message----- From: U-Boot u-boot-bounces@lists.denx.de On Behalf Of Biwen Li Sent: Friday, April 17, 2020 3:57 PM To: Jagdish Gediya jagdish.gediya@nxp.com; Priyanka Jain priyanka.jain@nxp.com; hs@denx.de; jagan@amarulasolutions.com; aford173@gmail.com; Alison Wang alison.wang@nxp.com; jh80.chung@samsung.com; Pramod Kumar pramod.kumar_1@nxp.com; Rajesh Bhagat rajesh.bhagat@nxp.com; Ruchika Gupta ruchika.gupta@nxp.com; olteanv@gmail.com Cc: Xiaobo Xie xiaobo.xie@nxp.com; Jiafei Pan jiafei.pan@nxp.com; u- boot@lists.denx.de; Z.q. Hou zhiqiang.hou@nxp.com; Biwen Li biwen.li@nxp.com Subject: [v2 02/27] rtc: pt7c4338: Add driver model support
From: Biwen Li biwen.li@nxp.com
Add support of driver model of pt7c4338
Signed-off-by: Biwen Li biwen.li@nxp.com
drivers/rtc/pt7c4338.c | 98 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 98 insertions(+)
diff --git a/drivers/rtc/pt7c4338.c b/drivers/rtc/pt7c4338.c index 6a19fe1d23..8f69bb00e3 100644 --- a/drivers/rtc/pt7c4338.c +++ b/drivers/rtc/pt7c4338.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0+ /*
- Copyright 2010 Freescale Semiconductor, Inc.
- Copyright 2020 NXP
- Author: Priyanka Jain Priyanka.Jain@freescale.com
*/ @@ -19,6 +20,7 @@
#include <common.h> #include <command.h> +#include <dm.h> #include <rtc.h> #include <i2c.h>
@@ -46,6 +48,7 @@ #define RTC_PT7C4338_RESET_VAL \ (RTC_CTL_STAT_BIT_RS0 | RTC_CTL_STAT_BIT_RS1 | RTC_CTL_STAT_BIT_OUT)
+#if !CONFIG_IS_ENABLED(DM_RTC) /****** Helper functions ****************************************/ static u8 rtc_read(u8 reg) { @@ -125,3 +128,98 @@ void rtc_reset(void) rtc_write(RTC_SEC_REG_ADDR, 0x00); /* clearing Clock Halt */ rtc_write(RTC_CTL_STAT_REG_ADDR, RTC_PT7C4338_RESET_VAL); } +#else +static u8 rtc_read(struct udevice *dev, u8 reg) {
- return dm_i2c_reg_read(dev, reg);
+}
+static void rtc_write(struct udevice *dev, u8 reg, u8 val) {
- dm_i2c_reg_write(dev, reg, val);
+}
+static int pt7c4338_rtc_get(struct udevice *dev, struct rtc_time *tmp) +{
- int ret = 0;
- u8 sec, min, hour, mday, wday, mon, year, ctl_stat;
- ctl_stat = rtc_read(dev, RTC_CTL_STAT_REG_ADDR);
- sec = rtc_read(dev, RTC_SEC_REG_ADDR);
- min = rtc_read(dev, RTC_MIN_REG_ADDR);
- hour = rtc_read(dev, RTC_HR_REG_ADDR);
- wday = rtc_read(dev, RTC_DAY_REG_ADDR);
- mday = rtc_read(dev, RTC_DATE_REG_ADDR);
- mon = rtc_read(dev, RTC_MON_REG_ADDR);
- year = rtc_read(dev, RTC_YR_REG_ADDR);
- debug("Get RTC year: %02x mon: %02x mday: %02x wday: %02x "
"hr: %02x min: %02x sec: %02x control_status: %02x\n",year, mon, mday, wday, hour, min, sec, ctl_stat);- if (ctl_stat & RTC_CTL_STAT_BIT_OSF) {
printf("### Warning: RTC oscillator has stopped\n");/* clear the OSF flag */rtc_write(dev, RTC_CTL_STAT_REG_ADDR,rtc_read(dev, RTC_CTL_STAT_REG_ADDR)\& ~RTC_CTL_STAT_BIT_OSF);ret = -1;- }
- tmp->tm_sec = bcd2bin(sec & 0x7F);
- tmp->tm_min = bcd2bin(min & 0x7F);
- tmp->tm_hour = bcd2bin(hour & 0x3F);
- tmp->tm_mday = bcd2bin(mday & 0x3F);
- tmp->tm_mon = bcd2bin(mon & 0x1F);
- tmp->tm_year = bcd2bin(year) + 2000;
- tmp->tm_wday = bcd2bin((wday - 1) & 0x07);
- tmp->tm_yday = 0;
- tmp->tm_isdst = 0;
- debug("Get DATE: %4d-%02d-%02d (wday=%d) TIME:
%2d:%02d:%02d\n",
tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp-tm_wday,
tmp->tm_hour, tmp->tm_min, tmp->tm_sec);- return ret;
+}
+static int pt7c4338_rtc_set(struct udevice *dev, const struct rtc_time +*tmp) {
- debug("Set DATE: %4d-%02d-%02d (wday=%d) TIME:
%2d:%02d:%02d\n",
tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp-tm_wday,
tmp->tm_hour, tmp->tm_min, tmp->tm_sec);- rtc_write(dev, RTC_YR_REG_ADDR, bin2bcd(tmp->tm_year % 100));
- rtc_write(dev, RTC_MON_REG_ADDR, bin2bcd(tmp->tm_mon));
- rtc_write(dev, RTC_DAY_REG_ADDR, bin2bcd(tmp->tm_wday + 1));
- rtc_write(dev, RTC_DATE_REG_ADDR, bin2bcd(tmp->tm_mday));
- rtc_write(dev, RTC_HR_REG_ADDR, bin2bcd(tmp->tm_hour));
- rtc_write(dev, RTC_MIN_REG_ADDR, bin2bcd(tmp->tm_min));
- rtc_write(dev, RTC_SEC_REG_ADDR, bin2bcd(tmp->tm_sec));
- return 0;
+}
+static int pt7c4338_rtc_reset(struct udevice *dev) {
- rtc_write(dev, RTC_SEC_REG_ADDR, 0x00); /* clearing Clock Halt */
- rtc_write(dev, RTC_CTL_STAT_REG_ADDR,
RTC_PT7C4338_RESET_VAL);
- return 0;
+}
+static const struct rtc_ops pt7c4338_rtc_ops = {
- .get = pt7c4338_rtc_get,
- .set = pt7c4338_rtc_set,
- .reset = pt7c4338_rtc_reset,
+};
+static const struct udevice_id pt7c4338_rtc_ids[] = {
- { .compatible = "pericom,pt7c4338" },
- { }
+};
+U_BOOT_DRIVER(rtc_pt7c4338) = {
- .name = "rtc-pt7c4338",
- .id = UCLASS_RTC,
- .of_match = pt7c4338_rtc_ids,
- .ops = &pt7c4338_rtc_ops,
+};
+#endif
2.17.1
Reviewed-by: Priyanka Jain priyanka.jain@nxp.com