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

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Date:	Mon, 13 Oct 2014 17:44:09 -0500
From:	Felipe Balbi <balbi@...com>
To:	Anton Tikhomirov <av.tikhomirov@...sung.com>
CC:	"'Vivek Gautam'" <gautam.vivek@...sung.com>,
	<linux-usb@...r.kernel.org>, <linux-samsung-soc@...r.kernel.org>,
	<linux-omap@...r.kernel.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <gregkh@...uxfoundation.org>,
	<balbi@...com>, <kgene.kim@...sung.com>, <mark.rutland@....com>,
	<pawel.moll@....com>, <robh+dt@...nel.org>, <kishon@...com>
Subject: Re: [PATCH v2 1/4] dwc3: exynos: Add support for SCLK present on
 Exynos7

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 ?

-- 
balbi

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