linux-kernel - Re: [PATCH v8 0/2] Imagination Technologies PWM support

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Date:	Fri, 30 Jan 2015 12:18:54 +0100
From:	Thierry Reding <thierry.reding@...il.com>
To:	Andrew Bresticker <abrestic@...omium.org>
Cc:	Ezequiel Garcia <ezequiel.garcia@...tec.com>,
	James Hartley <james.hartley@...tec.com>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-pwm@...r.kernel.org" <linux-pwm@...r.kernel.org>,
	vladimir_zapolskiy@...tor.com,
	Linux-MIPS <linux-mips@...ux-mips.org>
Subject: Re: [PATCH v8 0/2] Imagination Technologies PWM support

On Fri, Jan 30, 2015 at 11:08:46AM +0000, Andrew Bresticker wrote:
> +linux-mips
> 
> On Fri, Jan 30, 2015 at 10:26 AM, Thierry Reding
> <thierry.reding@...il.com> wrote:
> > On Fri, Jan 30, 2015 at 09:50:46AM +0000, Andrew Bresticker wrote:
> >> > Also you're making it especially difficult to build-test by not
> >> > providing even the basic bits of your SoC support first. All even
> >> > linux-next seems to have for the Pistachio SoC is the addition of a
> >> > compatible string to the dw-mmc driver.
> >> >
> >> > I'll take the PWM driver, but I'll assume that you'll eventually have
> >> > more pieces available, in which case I'd appreciate a note so I can
> >> > update my build scripts.
> >>
> >> FYI, I'm hoping to post Pistachio platform support for 3.21.
> >
> > That'd be great. I can switch over to a proper defconfig then and not
> > jump through extra hoops to build test patches.
> >
> > Also, I'm seeing a bunch of weird errors from building MIPS, mostly
> > things like this:
> >
> >           CC      net/ipv4/netfilter/arp_tables.mod.o
> >         {standard input}: Assembler messages:
> >         {standard input}: Warning: .gnu_attribute 4,3 requires `softfloat'
> >
> > or this later on:
> >
> >         mips-linux-gnu-ld: Warning: vmlinuz uses -mhard-float (set by arch/mips/boot/compressed/head.o), arch/mips/boot/compressed/decompress.o uses -msoft-float
> >
> > This is essentially a gpr_defconfig (because it select MIPS_ALCHEMY,
> > which in turns pulls in COMMON_CLK that PWM_IMG depends on) and then
> > enabling MFD_SYSCON on top so that all dependencies are met.
> >
> > What am I doing wrong?
> 
> What version of binutils are you using?  I believe the latter error
> should be fixed by commit 842dfc11ea9a ("MIPS: Fix build with binutils
> 2.24.51+"), but perhaps the decompressor Makefile requires a fix as
> well?  Unfortunately I'm traveling for the next couple of days, but I
> may be able to take a look at it on Monday.

I use binutils 2.25, and indeed building the correct branch gets rid of
those errors. Sorry for the noise.

Thierry

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