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Date:	Sun, 27 Jul 2014 21:01:20 -0700
From:	Doug Anderson <>
To:	caesar <>
Cc:	Thierry Reding <>,,
	"" <>,
	"" <>,
	"" <>
Subject: Re: [PATCH v2 2/2] pwm: add this patch to support the new pwm of
 Rockchip SoCs


On Sun, Jul 27, 2014 at 7:00 AM, caesar <> wrote:
> /*I think will be show the faill log:->
> * rockchip-pwm ff9301a0.pwm: can't request region for resource [mem
> 0xff9301a0-0xff93019f]
> */
> pc->base = devm_ioremap_resource(dev, regs);

Did you actually code this up and try it and get this error?  I hadn't
tried it but I researched other dts files and it looked as if there
was one example that was doing this.  ...but perhaps it wasn't
actually doing the ioremap_resource on both ranges.

I'd imagine that this is _probably_ equivalent to what Thierry was
suggesting, so if it didn't work then maybe Thierry's won't work

I don't have any other great suggestions other than doing two memory
ranges for lcdc:

         lcdc@...30000 {
                 compatible = "rockchip,rk3288-lcdc";
                 reg = <0xff930000 0x1a0>, <0xff9301b0 0xfe50>;
         pwm@...301a0 {
                 compatible = "rockchip,vop-pwm";
                 reg = <0xff9301a0 0x10>;

...but I am certainly nowhere near an expert on this stuff...

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