Re: [PATCH 2/2] usb: gadget: pxa27x_udc: use devm_* helpers

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On Wednesday, June 11, 2014 12:12 AM, Sergei Shtylyov wrote:
> On 06/10/2014 10:54 AM, Robert Jarzmik wrote:
> >> On 06/09/2014 11:52 PM, Robert Jarzmik wrote:
> >>>    	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> >>> +	udc->regs = devm_request_and_ioremap(&pdev->dev, regs);
> 
> >>     Isn't this function deprecated in favor of devm_ioremap_resource()?
> 
> > I don't know.It's not marked as deprecated.

Right, I sent the patch to mark devm_request_and_ioremap() as __deprecated.
However, Greg KH wanted to just remove it from the kernel.

> 
>     OK, formally it isn't. However, the uses of devm_request_and_ioremap() are
> gradually replaced by devm_ioremap_resource().

Currently, two drivers are using the legacy devm_request_and_ioremap()
as below.

  ./drivers/bus/brcmstb_gisb.c
  ./drivers/gpu/drm/armada/armada_crtc.c

I already sent the patches to replace it; however, the maintainers
are ignoring these patches. I think that it's the time to remove it.
So, I will sent single patch to Greg KH in order to remove all usages
of devm_request_and_ioremap() from the kernel.

Best regards,
Jingoo Han

> 
> >  Could you give me a pointer ?
> 
>     Only to the patches replacing the former by the latter, I'm afraid...
> However, note that the former is implemented as a wrapper of the latter, so
> it makes little sense to use it instead of a direct call to
> devm_ioremap_resource().
> 
> [...]
> 
> > Cheers.
> 
> WBR, Sergei


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