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SubjectRe: [PATCH 2/4] dt-bindings: pinctrl: Document optional BCM7211 wake-up interrupts
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On 5/29/20 12:33 PM, Rob Herring wrote:
> On Thu, May 28, 2020 at 12:21:10PM -0700, Florian Fainelli wrote:
>> BCM7211 supports wake-up interrupts in the form of optional interrupt
>> lines, one per bank, plus the "all banks" interrupt line.
>>
>> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
>> ---
>> .../devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt | 4 +++-
>> 1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt b/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt
>> index dfc67b90591c..5682b2010e50 100644
>> --- a/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt
>> +++ b/Documentation/devicetree/bindings/pinctrl/brcm,bcm2835-gpio.txt
>> @@ -16,7 +16,9 @@ Required properties:
>> second cell is used to specify optional parameters:
>> - bit 0 specifies polarity (0 for normal, 1 for inverted)
>> - interrupts : The interrupt outputs from the controller. One interrupt per
>> - individual bank followed by the "all banks" interrupt.
>> + individual bank followed by the "all banks" interrupt. For BCM7211, an
>> + additional set of per-bank interrupt line and an "all banks" wake-up
>> + interrupt may be specified.
>
> Is 'all banks' the name? Generally 'wakeup' is used for a wake up irq.

The firmware provided DTB on 7211 names the interrupts "gpio_%d" for the
standard interrupts, including the "all banks" which is then "gpio_3"
and the wake-up interrupts are named "gpio_%d_wake", and the all banks
wake-up is "gpio_3_wake".
--
Florian

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