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RTC for 4.7

Browse source 
Subsystem wide cleanups:
  - Use IS_ENABLED() instead of checking for built-in or module
  - remove useless DRV_VERSION
  - remove CLK_IS_ROOT
  - remove UIE signaling
 
 Drivers:
  - ds1302: rewritten to be a proper SPI device driver
  - m41t80: huge cleanup, alarm, wakelarm ans oscialltor failure detection
  support
  - rv3029: switch to regmap to handle rv3049, alarm support, fixes
  - zynqmp: enable switching to battery power, fixes
  - small fixes for at91sam9, da9053, ds1307, ds1685, ds3232, r2025, sa1100,
  snvs, stmp3xxx, tps6586x
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Merge tag 'rtc-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "Subsystem wide cleanups:
   - Use IS_ENABLED() instead of checking for built-in or module
   - remove useless DRV_VERSION
   - remove CLK_IS_ROOT
   - remove UIE signaling

  Drivers:
   - ds1302: rewritten to be a proper SPI device driver
   - m41t80: huge cleanup, alarm, wakelarm ans oscialltor failure
     detection support
   - rv3029: switch to regmap to handle rv3049, alarm support, fixes
   - zynqmp: enable switching to battery power, fixes
   - small fixes for at91sam9, da9053, ds1307, ds1685, ds3232, r2025,
     sa1100, snvs, stmp3xxx, tps6586x"

* tag 'rtc-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (40 commits)
  rtc: tps6586x: rename so module can be autoloaded
  rtc: rv3029: hide unused i2c device table
  rtc: rs5c372: r2025: fix check for 'oscillator halted' condition
  rtc: rv3029: add alarm IRQ
  rtc: rv3029: fix set_time function
  rtc: rv3029: fix alarm support
  rtc: rv3029: Remove some checks and warnings
  rtc: rv3029: Add support of RV3049
  rtc: rv3029: convert to use regmap
  rtc: rv3029: remove 'i2c' in functions names
  rtc: stmp3xxx: print message on error
  rtc: Use IS_ENABLED() instead of checking for built-in or module
  rtc: ds3232: fix call trace when rtc->ops_lock is used as NULL
  rtc: snvs: return error in case enable_irq_wake fails
  rtc: zynqmp: Update seconds time programming logic
  rtc: sa1100: DT spelling s/interrupt-name/interrupt-names/
  rtc: mc13xxx: remove UIE signaling
  rtc: mxc: remove UIE signaling
  rtc: ds1307: Remove CLK_IS_ROOT
  rtc: hym8563: Remove CLK_IS_ROOT
  ...
This commit is contained in:
Linus Torvalds 2016-05-21 10:42:11 -07:00
commit 63d222b9d2
43 changed files with 1019 additions and 735 deletions
Download patch file Download diff file Expand all files Collapse all files

46
Documentation/devicetree/bindings/rtc/maxim-ds1302.txt Normal file
View file

@ -0,0 +1,46 @@
* Maxim/Dallas Semiconductor DS-1302 RTC
Simple device which could be used to store date/time between reboots.
The device uses the standard MicroWire half-duplex transfer timing.
Master output is set on low clock and sensed by the RTC on the rising
edge. Master input is set by the RTC on the trailing edge and is sensed
by the master on low clock.
Required properties:
- compatible : Should be "maxim,ds1302"
Required SPI properties:
- reg : Should be address of the device chip select within
the controller.
- spi-max-frequency : DS-1302 has 500 kHz if powered at 2.2V,
and 2MHz if powered at 5V.
- spi-3wire : The device has a shared signal IN/OUT line.
- spi-lsb-first : DS-1302 requires least significant bit first
transfers.
- spi-cs-high: DS-1302 has active high chip select line. This is
required unless inverted in hardware.
Example:
spi@901c {
#address-cells = <1>;
#size-cells = <0>;
compatible = "icpdas,lp8841-spi-rtc";
reg = <0x901c 0x1>;
rtc@0 {
compatible = "maxim,ds1302";
reg = <0>;
spi-max-frequency = <500000>;
spi-3wire;
spi-lsb-first;
spi-cs-high;
};
};

2
Documentation/devicetree/bindings/rtc/sa1100-rtc.txt
View file

@ -13,5 +13,5 @@ Example:
compatible = "mrvl,mmp-rtc";
reg = <0xd4010000 0x1000>;
interrupts = <5>, <6>;
interrupt-name = "rtc 1Hz", "rtc alarm";
interrupt-names = "rtc 1Hz", "rtc alarm";
};