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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-01-01 13:24:31 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-01-01 13:24:31 -0800 |
| commit | 28e8c4bc8eb483c22d977e147a0b98fc63efadf7 (patch) | |
| tree | 8006dd759601c70d4dd1fc644ed817e9597cec55 /Documentation/core-api | |
| parent | c9bef4a651769927445900564781a9c99fdf6258 (diff) | |
| parent | 36e14f5fdfdf7cec8887b7ff69cd9bb5051ecf62 (diff) | |
Merge tag 'rtc-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"Subsystem:
- new %ptR printk format
- rename core files
- allow registration of multiple nvmem devices
New driver:
- i.MX system controller RTC
Driver updates:
- abx80x: handle voltage ioctls, correct binding doc
- m41t80: correct month in alarm reads
- pcf85363: add pcf85263 support
- pcf8523: properly handle battery low flag
- s3c: limit alarm to one year in the future as ALMYEAR is broken
- sun6i: rework clock output binding"
* tag 'rtc-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (54 commits)
rtc: rename core files
rtc: nvmem: fix possible use after free
rtc: add i.MX system controller RTC support
dt-bindings: fsl: scu: add rtc binding
rtc: pcf2123: Add Microcrystal rv2123
rtc: class: reimplement devm_rtc_device_register
rtc: enforce rtc_timer_init private_data type
rtc: abx80x: Implement RTC_VL_READ,CLR ioctls
rtc: pcf85363: Add support for NXP pcf85263 rtc
dt-bindings: rtc: pcf85363: Document pcf85263 real-time clock
rtc: pcf8523: don't return invalid date when battery is low
dt-bindings: rtc: use a generic node name for ds1307
PM: Switch to use %ptR
m68k/mac: Switch to use %ptR
Input: hp_sdc_rtc - Switch to use %ptR
rtc: tegra: Switch to use %ptR
rtc: s5m: Switch to use %ptR
rtc: s3c: Switch to use %ptR
rtc: rx8025: Switch to use %ptR
rtc: rx6110: Switch to use %ptR
...
Diffstat (limited to 'Documentation/core-api')
| -rw-r--r-- | Documentation/core-api/printk-formats.rst | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/core-api/printk-formats.rst b/Documentation/core-api/printk-formats.rst index ff48b55040ef..a7fae4538946 100644 --- a/Documentation/core-api/printk-formats.rst +++ b/Documentation/core-api/printk-formats.rst @@ -412,6 +412,24 @@ Examples:: Passed by reference. +Time and date (struct rtc_time) +------------------------------- + +:: + + %ptR YYYY-mm-ddTHH:MM:SS + %ptRd YYYY-mm-dd + %ptRt HH:MM:SS + %ptR[dt][r] + +For printing date and time as represented by struct rtc_time structure in +human readable format. + +By default year will be incremented by 1900 and month by 1. Use %ptRr (raw) +to suppress this behaviour. + +Passed by reference. + struct clk ---------- |