linux-kernel - Re: [PATCH] mfd: palmas: provide irq flags through DT/platform data

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Date:	Fri, 1 Mar 2013 18:25:24 +0530
From:	Laxman Dewangan <ldewangan@...dia.com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
CC:	"sameo@...ux.intel.com" <sameo@...ux.intel.com>,
	"gg@...mlogic.co.uk" <gg@...mlogic.co.uk>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Stephen Warren <swarren@...dia.com>,
	"ian@...mlogic.co.uk" <ian@...mlogic.co.uk>
Subject: Re: [PATCH] mfd: palmas: provide irq flags through DT/platform data

On Friday 01 March 2013 06:13 PM, Mark Brown wrote:
> * PGP Signed by an unknown key
>
> On Fri, Mar 01, 2013 at 06:04:56PM +0530, Laxman Dewangan wrote:
>
>> Currently driver sets the irq type to IRQF_TRIGGER_LOW which is
>> causing interrupt registration failure in ARM based SoCs as:
>> [    0.208479] genirq: Setting trigger mode 8 for irq 118 failed (gic_set_type+0x0/0xf0)
>> [    0.208513] dummy 0-0059: Failed to request IRQ 118: -22
> This can't be a generic problem on ARM systems, I'm pretty sure the
> primary users of palmas would've noticed, this is more of a new feature
> isn't it?

I think it is tested with eval board and connected to gpio interrupt and 
hence it is not noticed.


>
>> +	if (ret < 0) {
>> +		dev_err(palmas->dev, "POLARITY_CTRL write failed: %d\n", ret);
>> +		goto err;
>> +	}
> Isn't there a read/modify/write call for palmas?

Yaah, there is call but forget as I took this fix from my downstream code.
I will respin the next patch.

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