Rob, can you review those bindings?
On 01/08/2016 at 17:50:32 +0200, Martin Fuzzey wrote :
Please always include a commit message.
> Signed-off-by: Martin Fuzzey <mfuz...@parkeon.com>
> ---
> .../devicetree/bindings/rtc/nxp,pcf85263.txt | 41
> ++++++++++++++++++++
> include/dt-bindings/rtc/nxp,pcf85263.h | 14 +++++++
> 2 files changed, 55 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/rtc/nxp,pcf85263.txt
> create mode 100644 include/dt-bindings/rtc/nxp,pcf85263.h
>
> diff --git a/Documentation/devicetree/bindings/rtc/nxp,pcf85263.txt
> b/Documentation/devicetree/bindings/rtc/nxp,pcf85263.txt
> new file mode 100644
> index 0000000..03b9505
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/nxp,pcf85263.txt
> @@ -0,0 +1,41 @@
> +NXP PCF85263 I2C Real Time Clock
> +
> +Required properties:
> +- compatible: must be: "nxp,rtc-pcf85263"
> +- reg: must be the I2C address
> +
> +Optional properties:
> +- interrupt-names: Which interrupt signal is used must be "INTA" or "INTB"
> + Defaults to "INTA"
> +
> +- quartz-load-capacitance: The internal capacitor to select for the quartz:
> + PCF85263_QUARTZCAP_7pF [0]
> + PCF85263_QUARTZCAP_6pF [1]
> + PCF85263_QUARTZCAP_12p5pF [2] DEFAULT
> +
> +- quartz-drive-strength: Drive strength for the quartz:
> + PCF85263_QUARTZDRIVE_NORMAL [0] DEFAULT
> + PCF85263_QUARTZDRIVE_LOW [1]
> + PCF85263_QUARTZDRIVE_HIGH [2]
> +
> +- quartz-low-jitter: Boolean property, if present enables low jitter mode
> which
> + reduces jitter at the cost of increased power consumption.
> +
Maybe that one should be handled using sysfs instead of DT as it is more
policy than HW related.
> +- wakeup-source: mark the chip as a wakeup source, independently of
> + the availability of an IRQ line connected to the SoC.
> + This is useful if the IRQ line is connected to a PMIC or other circuit
> + that can power up the device rather than to a normal SOC interrupt.
> +
> +Example:
> +
> +rtc@51 {
> + compatible = "nxp,pcf85263";
> + reg = <0x51>;
> +
> + interrupt-parent = <&gpio4>;
> + interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
> + interrupt-names = "INTB";
> +
> + quartz-load-capacitance = <PCF85263_QUARTZCAP_12p5pF>;
> + quartz-drive-strength = <PCF85263_QUARTZDRIVE_LOW>;
> +};
> diff --git a/include/dt-bindings/rtc/nxp,pcf85263.h
> b/include/dt-bindings/rtc/nxp,pcf85263.h
> new file mode 100644
> index 0000000..ea87ae4
> --- /dev/null
> +++ b/include/dt-bindings/rtc/nxp,pcf85263.h
> @@ -0,0 +1,14 @@
> +#ifndef _DT_BINDINGS_RTC_NXP_PCF85263_H
> +#define _DT_BINDINGS_RTC_NXP_PCF85263_H
> +
> +/* Quartz capacitance */
> +#define PCF85263_QUARTZCAP_7pF 0
> +#define PCF85263_QUARTZCAP_6pF 1
> +#define PCF85263_QUARTZCAP_12p5pF 2
> +
> +/* Quartz drive strength */
> +#define PCF85263_QUARTZDRIVE_NORMAL 0
> +#define PCF85263_QUARTZDRIVE_LOW 1
> +#define PCF85263_QUARTZDRIVE_HIGH 2
> +
> +#endif /* _DT_BINDINGS_RTC_NXP_PCF85263_H */
>
--
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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