linux-kernel - Re: [PATCH v2 1/4] dwc3: exynos: Add support for SCLK present on Exynos7

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Date:	Wed, 15 Oct 2014 09:50:31 -0500
From:	Felipe Balbi <balbi@...com>
To:	Vivek Gautam <gautam.vivek@...sung.com>
CC:	Felipe Balbi <balbi@...com>,
	Anton Tikhomirov <av.tikhomirov@...sung.com>,
	Linux USB Mailing List <linux-usb@...r.kernel.org>,
	"linux-samsung-soc@...r.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...uxfoundation.org>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Mark Rutland <mark.rutland@....com>,
	Pawel Moll <pawel.moll@....com>, robh+dt <robh+dt@...nel.org>,
	kishon <kishon@...com>
Subject: Re: [PATCH v2 1/4] dwc3: exynos: Add support for SCLK present on
 Exynos7

Hi,

On Tue, Oct 14, 2014 at 10:25:00AM +0530, Vivek Gautam wrote:
> Hi Felipe,
> 
> 
> On Tue, Oct 14, 2014 at 4:14 AM, Felipe Balbi <balbi@...com> wrote:
> > Hi,
> >
> > On Mon, Oct 13, 2014 at 01:54:59PM +0900, Anton Tikhomirov wrote:
> >> Hi Vivek,
> >>
> >> > Exynos7 also has a separate special gate clock going to the IP
> >> > apart from the usual AHB clock. So add support for the same.
> >>
> >> As we discussed before, Exynos7 SoCs have 7 clocks to be controlled
> >> by the driver. Adding only sclk is not enough.
> >>
> >> >
> >> > Signed-off-by: Vivek Gautam <gautam.vivek@...sung.com>
> >> > ---
> >> >  drivers/usb/dwc3/dwc3-exynos.c |   16 ++++++++++++++++
> >> >  1 file changed, 16 insertions(+)
> >> >
> >> > diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-
> >> > exynos.c
> >> > index 3951a65..7dc6a98 100644
> >> > --- a/drivers/usb/dwc3/dwc3-exynos.c
> >> > +++ b/drivers/usb/dwc3/dwc3-exynos.c
> >> > @@ -35,6 +35,7 @@ struct dwc3_exynos {
> >> >     struct device           *dev;
> >> >
> >> >     struct clk              *clk;
> >>
> >> The clock "clk" in Exynos5 just gated all that above 7 clocks, which
> >> we should control separately now in Exynos7.
> >>
> >
> > should I drop this patch for now ?
> 
> Yes, better to hold this for some time till we get more clarity
> from our h/w team.

now dropped. Please a new one if needed.

-- 
balbi

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