Re: [PATCH v5 1/6] drm: panfrost: add optional bus_clock

From: Rob Herring <robh+dt@kernel.org>
To: "Clément Péron" <peron.clem@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
	devicetree <devicetree@vger.kernel.org>,
	Tomeu Vizoso <tomeu.vizoso@collabora.com>,
	Neil Armstrong <narmstrong@baylibre.com>,
	David Airlie <airlied@linux.ie>, Joerg Roedel <joro@8bytes.org>,
	Will Deacon <will.deacon@arm.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	dri-devel <dri-devel@lists.freedesktop.org>,
	Steven Price <steven.price@arm.com>,
	Maxime Ripard <maxime.ripard@bootlin.com>,
	Chen-Yu Tsai <wens@csie.org>,
	Linux IOMMU <iommu@lists.linux-foundation.org>,
	Daniel Vetter <daniel@ffwll.ch>,
	Robin Murphy <robin.murphy@arm.com>,
	"moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE"
	<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v5 1/6] drm: panfrost: add optional bus_clock
Date: Fri, 17 May 2019 17:16:49 -0500	[thread overview]
Message-ID: <CAL_JsqJgo8NpK00ApBcdtYGW24yuqU=4EMna+r_07=dqceZyyg@mail.gmail.com> (raw)
In-Reply-To: <CAJiuCcdMxXAXYk=QpRwsvBUW0tvBVMqXvgx0Y7fAKP=ouyBnKQ@mail.gmail.com>

On Fri, May 17, 2019 at 5:08 PM Clément Péron <peron.clem@gmail.com> wrote:
>
> Hi Rob,
>
> On Fri, 17 May 2019 at 22:07, Rob Herring <robh+dt@kernel.org> wrote:
> >
> > On Fri, May 17, 2019 at 1:47 PM Clément Péron <peron.clem@gmail.com> wrote:
> > >
> > > Allwinner H6 has an ARM Mali-T720 MP2 which required a bus_clock.
> > >
> > > Add an optional bus_clock at the init of the panfrost driver.
> > >
> > > Signed-off-by: Clément Péron <peron.clem@gmail.com>
> > > ---
> > >  drivers/gpu/drm/panfrost/panfrost_device.c | 25 +++++++++++++++++++++-
> > >  drivers/gpu/drm/panfrost/panfrost_device.h |  1 +
> > >  2 files changed, 25 insertions(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/gpu/drm/panfrost/panfrost_device.c b/drivers/gpu/drm/panfrost/panfrost_device.c
> > > index 3b2bced1b015..8da6e612d384 100644
> > > --- a/drivers/gpu/drm/panfrost/panfrost_device.c
> > > +++ b/drivers/gpu/drm/panfrost/panfrost_device.c
> > > @@ -44,7 +44,8 @@ static int panfrost_clk_init(struct panfrost_device *pfdev)
> > >
> > >         pfdev->clock = devm_clk_get(pfdev->dev, NULL);
> > >         if (IS_ERR(pfdev->clock)) {
> > > -               dev_err(pfdev->dev, "get clock failed %ld\n", PTR_ERR(pfdev->clock));
> > > +               dev_err(pfdev->dev, "get clock failed %ld\n",
> > > +                       PTR_ERR(pfdev->clock));
> >
> > Please drop this whitespace change.
>
> Sorry, I thought it was only a mistake here, I will drop it.
> Why are they so many lines over 80 characters?

I'd guess most are prints and/or just slightly over.

> Is there a specific coding style to follow ?

Yes, but generally the 80 character thing is more a guidance. Not
having unrelated changes in a single commit is more of a hard rule.

Rob

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