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SubjectRe: [v5,1/2] dt-bindings: rtc: pcf85263/pcf85363: add some properties
Hi,

On 19/09/2019 09:45:19+0800, Biwen Li wrote:
> Add some properties for pcf85263/pcf85363 as follows:
> - nxp,rtc-interrupt-type: integer type
> - nxp,rtc-interrupt-output-pin: string type
> - quartz-load-femtofarads: integer type
> - quartz-drive-strength-ohms: integer type
> - nxp,quartz-low-jitter: bool type
> - wakeup-source: bool type
>
> Signed-off-by: Martin Fuzzey <mfuzzey@parkeon.com>
> Signed-off-by: Biwen Li <biwen.li@nxp.com>
> ---
> Change in v5:
> - Replace nxp,quartz-drive-strength with
> quartz-drive-strength-ohms
> - Select ohm unit for quartz drive strength
>
> Change in v4:
> - Drop robust defines in include/dt-bindings/rtc/pcf85363.h
> - Add nxp,rtc-interrupt-type property
> - Replace interrupt-output-pin with nxp,rtc-interrupt-output-pin
>
> Change in v3:
> - None
>
> Change in v2:
> - Replace properties name
> quartz-load-capacitance -> quartz-load-femtofarads
> quartz-drive-strength -> nxp,quartz-drive-strength
> quartz-low-jitter -> nxp,quartz-low-jitter
> - Replace drive strength name
> PCF85263_QUARTZDRIVE_NORMAL -> PCF85263_QUARTZDRIVE_100ko
> PCF85263_QUARTZDRIVE_LOW -> PCF85263_QUARTZDRIVE_60ko
> PCF85263_QUARTZDRIVE_HIGH -> PCF85263_QUARTZDRIVE_500ko
> - Set default interrupt-output-pin as "INTA"
>
> .../devicetree/bindings/rtc/pcf85363.txt | 44 ++++++++++++++++++-
> include/dt-bindings/rtc/pcf85363.h | 14 ++++++
> 2 files changed, 57 insertions(+), 1 deletion(-)
> create mode 100644 include/dt-bindings/rtc/pcf85363.h
>
> diff --git a/Documentation/devicetree/bindings/rtc/pcf85363.txt b/Documentation/devicetree/bindings/rtc/pcf85363.txt
> index 94adc1cf93d9..7f907581d5db 100644
> --- a/Documentation/devicetree/bindings/rtc/pcf85363.txt
> +++ b/Documentation/devicetree/bindings/rtc/pcf85363.txt
> @@ -8,10 +8,52 @@ Required properties:
> Optional properties:
> - interrupts: IRQ line for the RTC (not implemented).
>
> +- nxp,rtc-interrupt-type: integer property, represent the interrupt's
> + type. Valid values are
> + INT_PIE(periodic interrupt enable),
> + INT_OIE(offset correction interrupt enable),
> + INT_A1IE(alarm1 interrupt enable),
> + INT_A2IE(alarm2 interrupt enable),
> + INT_TSRIE(timestamp register interrupt enable)
> + INT_BSIE(battery switch interrupt enable),
> + INT_WDIE(WatchDog interrupt enable,and
> + compose these values such as: INT_A1IE | INT_A2IE,
> + but currently only support INT_A1IE, default value is INT_A1IE.
> + The property and property nxp,rtc-interrupt-output-pin
> + work together to generate some interrupts on some pins.
> +
> +- nxp,rtc-interrupt-output-pin: The interrupt output pin must be
> + "INTA" or "INTB", default value is "INTA". The property and property
> + nxp,rtc-interrupt-type work together to generate some interrupts on
> + some pins.
> +

This binding is still not working. What if you need INT_A1 on INTA and
INT_WD on INTB?

> +- quartz-load-femtofarads: The internal capacitor to select for the quartz,
> + expressed in femto Farad (fF). Valid values are 6000, 7000 and 12500.
> + Default value is 12500fF.
> +
> +- quartz-drive-strength-ohms: Drive strength for the quartz,
> + expressed in ohm, Valid values are 60000, 100000 and 500000.
> + Default value is 100000 ohm.
> +
> +- nxp,quartz-low-jitter: Boolean property, if present enables low jitter mode
> + which reduces jitter at the cost of increased power consumption.
> +
> +- wakeup-source: Boolean property, Please refer to
> + Documentation/devicetree/bindings/power/wakeup-source.txt
> +
> Example:
>
> pcf85363: pcf85363@51 {
> compatible = "nxp,pcf85363";
> reg = <0x51>;
> -};
>
> + interrupt-parent = <&gpio1>;
> + interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
> +
> + wakeup-source;
> + nxp,rtc-interrupt-output-pin = "INTA";
> + nxp,rtc-interrupt-type = <INT_A1IE>;
> + quartz-load-femtofarads = <12500>;
> + quartz-drive-strength-ohms = <60000>;
> + nxp,quartz-low-jitter;
> +};
> diff --git a/include/dt-bindings/rtc/pcf85363.h b/include/dt-bindings/rtc/pcf85363.h
> new file mode 100644
> index 000000000000..6340bf2da8f5
> --- /dev/null
> +++ b/include/dt-bindings/rtc/pcf85363.h
> @@ -0,0 +1,14 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +#ifndef _DT_BINDINGS_RTC_PCF85363_H
> +#define _DT_BINDINGS_RTC_PCF85363_H
> +
> +/* Interrupt type */
> +#define INT_WDIE (1 << 0)
> +#define INT_BSIE (1 << 1)
> +#define INT_TSRIE (1 << 2)
> +#define INT_A2IE (1 << 3)
> +#define INT_A1IE (1 << 4)
> +#define INT_OIE (1 << 5)
> +#define INT_PIE (1 << 6)

Please remove IE from the define names. i.e INT_WDIE is a bit enabling
INT_WD, you don't get an interrupt when the watchdog is enabled but
rather when it expires.


--
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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