dt-bindings: rtc: DS1307 and compatibles are not trivial

Document optional properties for ds1307 and compatible RTCs

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Rob Herring <robh@kernel.org>

diff --git a/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt b/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt
new file mode 100644 (file)
index 0000000..c010f18
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/rtc-ds1307.txt
@@ -0,0 +1,36 @@
+Dallas DS1307 and compatible RTC
+
+Required properties:
+- compatible: should be one of:
+       "dallas,ds1307",
+       "dallas,ds1308",
+       "dallas,ds1337",
+       "dallas,ds1338",
+       "dallas,ds1339",
+       "dallas,ds1388",
+       "dallas,ds1340",
+       "dallas,ds1341",
+       "maxim,ds3231",
+       "st,m41t0",
+       "st,m41t00",
+       "microchip,mcp7940x",
+       "microchip,mcp7941x",
+       "pericom,pt7c4338",
+       "epson,rx8025",
+       "isil,isl12057"
+- reg: I2C bus address of the device
+
+Optional properties:
+- interrupt-parent: phandle for the interrupt controller.
+- interrupts: rtc alarm interrupt.
+- clock-output-names: From common clock binding to override the default output
+                      clock name
+- wakeup-source: Enables wake up of host system on alarm
+
+Example:
+       rtc1: ds1339@68 {
+               compatible = "dallas,ds1339";
+               reg = <0x68>;
+               interrupt-parent = <&gpio4>;
+               interrupts = <20 0>;
+       };

diff --git a/Documentation/devicetree/bindings/trivial-devices.txt b/Documentation/devicetree/bindings/trivial-devices.txt
index e399201..4353151 100644 (file)
--- a/Documentation/devicetree/bindings/trivial-devices.txt
+++ b/Documentation/devicetree/bindings/trivial-devices.txt
@@ -36,9 +36,6 @@ atmel,at97sc3204t     i2c trusted platform module (TPM)
 capella,cm32181                CM32181: Ambient Light Sensor
 capella,cm3232         CM3232: Ambient Light Sensor
 cirrus,cs42l51         Cirrus Logic CS42L51 audio codec
-dallas,ds1307          64 x 8, Serial, I2C Real-Time Clock
-dallas,ds1338          I2C RTC with 56-Byte NV RAM
-dallas,ds1340          I2C RTC with Trickle Charger
 dallas,ds1374          I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
 dallas,ds1631          High-Precision Digital Thermometer
 dallas,ds1672          Dallas DS1672 Real-time Clock
@@ -55,7 +52,6 @@ dlg,da9063            DA9063: system PMIC for quad-core application processors
 domintech,dmard09      DMARD09: 3-axis Accelerometer
 domintech,dmard10      DMARD10: 3-axis Accelerometer
 epson,rx8010           I2C-BUS INTERFACE REAL TIME CLOCK MODULE
-epson,rx8025           High-Stability. I2C-Bus INTERFACE REAL TIME CLOCK MODULE
 epson,rx8581           I2C-BUS INTERFACE REAL TIME CLOCK MODULE
 emmicro,em3027         EM Microelectronic EM3027 Real-time Clock
 fsl,mag3110            MAG3110: Xtrinsic High Accuracy, 3D Magnetometer
@@ -179,8 +175,6 @@ sii,s35390a         2-wire CMOS real-time clock
 silabs,si7020          Relative Humidity and Temperature Sensors
 skyworks,sky81452      Skyworks SKY81452: Six-Channel White LED Driver with Touch Panel Bias Supply
 st,24c256              i2c serial eeprom  (24cxx)
-st,m41t0               Serial real-time clock (RTC)
-st,m41t00              Serial real-time clock (RTC)
 st,m41t62              Serial real-time clock (RTC) with alarm
 st,m41t80              M41T80 - SERIAL ACCESS RTC WITH ALARMS
 taos,tsl2550           Ambient Light Sensor with SMBUS/Two Wire Serial Interface