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dt-bindings: rtc: brcm,brcmstb-waketimer: add alarm interrupt

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A second interrupt can optionally be specified for this device
to be used for generating RTC alarm interrupts.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230124201430.2502371-2-opendmb@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Doug Berger 2023-01-24 12:14:29 -08:00 committed by Alexandre Belloni
parent 344f4030f6
commit 6cc7a8262b
1 changed files with 14 additions and 7 deletions
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21
Documentation/devicetree/bindings/rtc/brcm,brcmstb-waketimer.yaml
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@ -11,7 +11,8 @@ maintainers:
description:
The Broadcom STB wake-up timer provides a 27Mhz resolution timer, with the
ability to wake up the system from low-power suspend/standby modes.
ability to wake up the system from low-power suspend/standby modes and
optionally generate RTC alarm interrupts.
allOf:
- $ref: "rtc.yaml#"
@ -24,8 +25,14 @@ properties:
maxItems: 1
interrupts:
description: the TIMER interrupt
maxItems: 1
minItems: 1
items:
- description: the TIMER interrupt
- description: the ALARM interrupt
description:
The TIMER interrupt wakes the system from low-power suspend/standby modes.
An ALARM interrupt may be specified to interrupt the CPU when an RTC alarm
is enabled.
clocks:
description: clock reference in the 27MHz domain
@ -35,10 +42,10 @@ additionalProperties: false
examples:
- |
rtc@f0411580 {
rtc@f041a080 {
compatible = "brcm,brcmstb-waketimer";
reg = <0xf0411580 0x14>;
interrupts = <0x3>;
interrupt-parent = <&aon_pm_l2_intc>;
reg = <0xf041a080 0x14>;
interrupts-extended = <&aon_pm_l2_intc 0x04>,
<&upg_aux_aon_intr2_intc 0x08>;
clocks = <&upg_fixed>;
};