linux-kernel - Re: [PATCH] nouveau: fix reclocking on nv40

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Date:	Sun, 8 Sep 2013 13:25:35 +0200
From:	Pali Rohár <pali.rohar@...il.com>
To:	Ben Skeggs <skeggsb@...il.com>
Cc:	Ben Skeggs <bskeggs@...hat.com>,
	Martin Peres <martin.peres@...ri.fr>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>
Subject: Re: [PATCH] nouveau: fix reclocking on nv40

On Wednesday 21 August 2013 02:24:01 Ben Skeggs wrote:
> On Mon, Aug 19, 2013 at 4:59 PM, Pali Rohár 
<pali.rohar@...il.com> wrote:
> > On Friday 16 August 2013 14:57:07 Pali Rohár wrote:
> >> In commit 77145f1cbdf8d28b46ff8070ca749bad821e0774 was
> >> introduced error which cause that reclocking on nv40 not
> >> working anymore. There is missing assigment of return value
> >> from pll_calc to ret.
> >> 
> >> Signed-off-by: Pali Rohár <pali.rohar@...il.com>
> >> Signed-off-by: Martin Peres <martin.peres@...ri.fr>
> >> ---
> >> 
> >>  drivers/gpu/drm/nouveau/nv40_pm.c |    2 +-
> >>  1 file changed, 1 insertion(+), 1 deletion(-)
> >> 
> >> diff --git a/drivers/gpu/drm/nouveau/nv40_pm.c
> >> b/drivers/gpu/drm/nouveau/nv40_pm.c index 3af5bcd..625f80d
> >> 100644
> >> --- a/drivers/gpu/drm/nouveau/nv40_pm.c
> >> +++ b/drivers/gpu/drm/nouveau/nv40_pm.c
> >> @@ -131,7 +131,7 @@ nv40_calc_pll(struct drm_device *dev,
> >> u32 reg, struct nvbios_pll *pll, if (clk <
> >> pll->vco1.max_freq)
> >> 
> >>               pll->vco2.max_freq = 0;
> >> 
> >> -     pclk->pll_calc(pclk, pll, clk, &coef);
> >> +     ret = pclk->pll_calc(pclk, pll, clk, &coef);
> >> 
> >>       if (ret == 0)
> >>       
> >>               return -ERANGE;
> > 
> > Hello, it is possible to include this patch in 3.11?
> > Or it is too late now and need to wait for 3.12?
> 
> I've picked up the patch and will submit it in my next
> 3.11-fixes pull request.
> 
> Thanks,
> Ben.
> 

Hello, now I see that patch is in 3.11, thanks! Ben, what do you 
think, can be this patch backported to older kernels?

-- 
Pali Rohár
pali.rohar@...il.com

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