linux-kernel - Re: [PATCH] dt-bindings: mfd: Correct interrupt flags in examples

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Date:   Wed, 9 Sep 2020 06:30:44 +0000
From:   "Vaittinen, Matti" <Matti.Vaittinen@...rohmeurope.com>
To:     "krzk@...nel.org" <krzk@...nel.org>,
        "lee.jones@...aro.org" <lee.jones@...aro.org>,
        linux-power <linux-power@...rohmeurope.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "tharvey@...eworks.com" <tharvey@...eworks.com>,
        "rjones@...eworks.com" <rjones@...eworks.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>
Subject: Re: [PATCH] dt-bindings: mfd: Correct interrupt flags in examples


On Tue, 2020-09-08 at 16:59 +0200, Krzysztof Kozlowski wrote:
> GPIO_ACTIVE_x flags are not correct in the context of interrupt
> flags.
> These are simple defines so they could be used in DTS but they will
> not
> have the same meaning:
> 1. GPIO_ACTIVE_HIGH = 0 = IRQ_TYPE_NONE
> 2. GPIO_ACTIVE_LOW  = 1 = IRQ_TYPE_EDGE_RISING
> 
> Correct the interrupt flags, assuming the author of the code wanted
> some
> logical behavior behind the name "ACTIVE_xxx", this is:
>   ACTIVE_LOW => IRQ_TYPE_LEVEL_LOW
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>

For BD70528:
Acked-By: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>

> ---
>  Documentation/devicetree/bindings/mfd/act8945a.txt          | 2 +-
>  Documentation/devicetree/bindings/mfd/gateworks-gsc.yaml    | 3 ++-
>  Documentation/devicetree/bindings/mfd/rohm,bd70528-pmic.txt | 2 +-
>  3 files changed, 4 insertions(+), 3 deletions(-)
> 
> 
> diff --git a/Documentation/devicetree/bindings/mfd/rohm,bd70528-
> pmic.txt b/Documentation/devicetree/bindings/mfd/rohm,bd70528-
> pmic.txt
> index c3c02ce73cde..386eec06cf08 100644
> --- a/Documentation/devicetree/bindings/mfd/rohm,bd70528-pmic.txt
> +++ b/Documentation/devicetree/bindings/mfd/rohm,bd70528-pmic.txt
> @@ -39,7 +39,7 @@ pmic: pmic@4b {
>  	compatible = "rohm,bd70528";
>  	reg = <0x4b>;
>  	interrupt-parent = <&gpio1>;
> -	interrupts = <29 GPIO_ACTIVE_LOW>;
> +	interrupts = <29 IRQ_TYPE_LEVEL_LOW>;

This is how it should have been from the beginning :) Thanks!

Br,
	Matti

--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland
SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~

Simon says - in Latin please.
"non cogito me" dixit Rene Descarte, deinde evanescavit

(Thanks for the translation Simon)