linux-kernel - Re: [PATCH v3 43/44] dt: document HiSilicon SPMI controller and mfd/regulator properties

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Date:   Tue, 18 Aug 2020 12:37:25 +0200
From:   Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linuxarm@...wei.com, mauro.chehab@...wei.com,
        Lee Jones <lee.jones@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v3 43/44] dt: document HiSilicon SPMI controller and
 mfd/regulator properties

Em Tue, 18 Aug 2020 11:13:51 +0200
Mauro Carvalho Chehab <mchehab+huawei@...nel.org> escreveu:

> Em Mon, 17 Aug 2020 14:12:11 -0600
> Rob Herring <robh@...nel.org> escreveu:
> 

> > > +  'irq-mask-addr':
> > > +    description: Address for the interrupt request mask
> > > +
> > > +  'irq-addr':
> > > +    description: Address for the interrupt request  
> 
> Those two seems more standard to me: irq-mask-addr is the address to
> enable/disable IRQs, while irq-addr is where the pending IRQs are
> stored.
> 
> What would be the standard way to specify them both?

After another look at the driver, both seems to be fixed
address. There are even some comments that implies that:

	/* SOC_PMIC_IRQ_MASK_0_ADDR */
	ret = of_property_read_u32(np, "irq-mask-addr", &pmic->irq_mask_addr);

	/* SOC_PMIC_IRQ0_ADDR */
	ret = of_property_read_u32(np, "irq-addr", &pmic->irq_addr);

So, I'll just drop the entire set of irq-* properties. The PMIC part
should be just this:

	#include <dt-bindings/spmi/spmi.h>
...
		pmic: pmic@0 {
			compatible = "hisilicon,hi6421v600-spmi";
			reg = <0 SPMI_USID>;

			#interrupt-cells = <2>;
			interrupt-controller;
			gpios = <&gpio28 0 0>;
...
		};



Thanks,
Mauro