Hi Jason,

I have currently seen both. I agree on the principles as it is simplifying the 
code a little bit.
I including this clean up in this patch Add devicetree structure for a future 
v2 submission

Best Regards
Christophe

-----Original Message-----
From: Jason Gunthorpe [mailto:[email protected]] 
Sent: mercredi 8 octobre 2014 18:29
To: Christophe RICARD
Cc: [email protected]; [email protected]; [email protected]; 
[email protected]; [email protected]; Christophe Henri 
RICARD; Jean-Luc BLANC
Subject: Re: [tpmdd-devel] [PATCH 07/16] tpm/tpm_i2c_stm_st33: Add devicetree 
structure

On Wed, Oct 08, 2014 at 07:47:58AM +0200, Christophe RICARD wrote:
> >>+   if (interrupts) {
> >>+           r = devm_gpio_request_one(&client->dev, pdata->io_serirq,
> >>+                                   GPIOF_IN, "TPM IO_SERIRQ");
> >Similarly, I wonder if pdata->io_serirq is just duplication of
> >client->irq and that should be set by the creator instead?

> pdata->io_serirq stores the gpio number which will be converted into
> irq number.  pdata->io_serirq is only use by static platform 
> configuration not devicetree configuration

Right, but the driver never uses it as a GPIO, so accepting a GPIO is actually 
less flexible - a platform may connect the TPM to a dedicated IRQ pin, for 
instance.

The creator should just specify the irq in client->irq, however that is 
typically done..

Jason
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