diff options
Diffstat (limited to 'nixos/modules/kernel-patches/0034-rtc-rs5c372-support-alarms-up-to-1-week.patch')
-rw-r--r-- | nixos/modules/kernel-patches/0034-rtc-rs5c372-support-alarms-up-to-1-week.patch | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/nixos/modules/kernel-patches/0034-rtc-rs5c372-support-alarms-up-to-1-week.patch b/nixos/modules/kernel-patches/0034-rtc-rs5c372-support-alarms-up-to-1-week.patch deleted file mode 100644 index 7ad61a4..0000000 --- a/nixos/modules/kernel-patches/0034-rtc-rs5c372-support-alarms-up-to-1-week.patch +++ /dev/null @@ -1,104 +0,0 @@ -From debf651897e47681bb72bfcefd6b308264ae4985 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Daniel=20Gonz=C3=A1lez=20Cabanelas?= <dgcbueu@gmail.com> -Date: Tue, 27 Sep 2022 16:21:26 +0200 -Subject: [PATCH 34/96] rtc: rs5c372: support alarms up to 1 week -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -The Ricoh R2221x, R2223x, RS5C372, RV5C387A chips can handle 1 week -alarms. - -Read the "wday" alarm register and convert it to a date to support up 1 -week in our driver. - -Signed-off-by: Daniel González Cabanelas <dgcbueu@gmail.com> ---- - drivers/rtc/rtc-rs5c372.c | 48 ++++++++++++++++++++++++++++++++++----- - 1 file changed, 42 insertions(+), 6 deletions(-) - -diff --git a/drivers/rtc/rtc-rs5c372.c b/drivers/rtc/rtc-rs5c372.c -index cb15983383f5..ab4b5209870d 100644 ---- a/drivers/rtc/rtc-rs5c372.c -+++ b/drivers/rtc/rtc-rs5c372.c -@@ -399,7 +399,9 @@ static int rs5c_read_alarm(struct device *dev, struct rtc_wkalrm *t) - { - struct i2c_client *client = to_i2c_client(dev); - struct rs5c372 *rs5c = i2c_get_clientdata(client); -- int status; -+ int status, wday_offs; -+ struct rtc_time rtc; -+ unsigned long alarm_secs; - - status = rs5c_get_regs(rs5c); - if (status < 0) -@@ -409,6 +411,30 @@ static int rs5c_read_alarm(struct device *dev, struct rtc_wkalrm *t) - t->time.tm_sec = 0; - t->time.tm_min = bcd2bin(rs5c->regs[RS5C_REG_ALARM_A_MIN] & 0x7f); - t->time.tm_hour = rs5c_reg2hr(rs5c, rs5c->regs[RS5C_REG_ALARM_A_HOURS]); -+ t->time.tm_wday = ffs(rs5c->regs[RS5C_REG_ALARM_A_WDAY] & 0x7f) - 1; -+ -+ /* determine the day, month and year based on alarm wday, taking as a -+ * reference the current time from the rtc -+ */ -+ status = rs5c372_rtc_read_time(dev, &rtc); -+ if (status < 0) -+ return status; -+ -+ wday_offs = t->time.tm_wday - rtc.tm_wday; -+ alarm_secs = mktime64(rtc.tm_year + 1900, -+ rtc.tm_mon + 1, -+ rtc.tm_mday + wday_offs, -+ t->time.tm_hour, -+ t->time.tm_min, -+ t->time.tm_sec); -+ -+ if (wday_offs < 0 || (wday_offs == 0 && -+ (t->time.tm_hour < rtc.tm_hour || -+ (t->time.tm_hour == rtc.tm_hour && -+ t->time.tm_min <= rtc.tm_min)))) -+ alarm_secs += 7 * 86400; -+ -+ rtc_time64_to_tm(alarm_secs, &t->time); - - /* ... and status */ - t->enabled = !!(rs5c->regs[RS5C_REG_CTRL1] & RS5C_CTRL1_AALE); -@@ -423,12 +449,20 @@ static int rs5c_set_alarm(struct device *dev, struct rtc_wkalrm *t) - struct rs5c372 *rs5c = i2c_get_clientdata(client); - int status, addr, i; - unsigned char buf[3]; -+ struct rtc_time rtc_tm; -+ unsigned long rtc_secs, alarm_secs; - -- /* only handle up to 24 hours in the future, like RTC_ALM_SET */ -- if (t->time.tm_mday != -1 -- || t->time.tm_mon != -1 -- || t->time.tm_year != -1) -+ /* chip only can handle alarms up to one week in the future*/ -+ status = rs5c372_rtc_read_time(dev, &rtc_tm); -+ if (status) -+ return status; -+ rtc_secs = rtc_tm_to_time64(&rtc_tm); -+ alarm_secs = rtc_tm_to_time64(&t->time); -+ if (alarm_secs >= rtc_secs + 7 * 86400) { -+ dev_err(dev, "%s: alarm maximum is one week in the future (%d)\n", -+ __func__, status); - return -EINVAL; -+ } - - /* REVISIT: round up tm_sec */ - -@@ -449,7 +483,9 @@ static int rs5c_set_alarm(struct device *dev, struct rtc_wkalrm *t) - /* set alarm */ - buf[0] = bin2bcd(t->time.tm_min); - buf[1] = rs5c_hr2reg(rs5c, t->time.tm_hour); -- buf[2] = 0x7f; /* any/all days */ -+ /* each bit is the day of the week, 0x7f means all days */ -+ buf[2] = (t->time.tm_wday >= 0 && t->time.tm_wday < 7) ? -+ BIT(t->time.tm_wday) : 0x7f; - - for (i = 0; i < sizeof(buf); i++) { - addr = RS5C_ADDR(RS5C_REG_ALARM_A_MIN + i); --- -2.37.2 - |