Re: [PATCH v7 15/22] mfd: omap-usb-host: Manage HSIC clocks for HSICmode

From: Felipe Balbi
Date: Thu Jan 17 2013 - 07:48:46 EST


On Thu, Jan 17, 2013 at 02:45:16PM +0200, Roger Quadros wrote:
> On 01/17/2013 02:27 PM, Felipe Balbi wrote:
> > On Thu, Jan 17, 2013 at 02:10:18PM +0200, Roger Quadros wrote:
> >> On 01/17/2013 01:45 PM, Felipe Balbi wrote:
> >>> Hi,
> >>>
> >>> On Thu, Jan 17, 2013 at 01:30:24PM +0200, Roger Quadros wrote:
> >>>> @@ -598,6 +639,24 @@ static int usbhs_omap_probe(struct platform_device *pdev)
> >>>> clkname, PTR_ERR(pclk));
> >>>> else
> >>>> omap->utmi_clk[i] = pclk;
> >>>> +
> >>>> + snprintf(clkname, sizeof(clkname),
> >>>> + "usb_host_hs_hsic480m_p%d_clk", i + 1);
> >>>
> >>> do we really need to know the exact clock node name ?
> >>>
> >> I think so. Do you have a better suggestion?
> >
> > update CLKDEV entries ? I mean, what if we have a new OMAP or AMxxxx
> > device with a different clock name ? That will be a big bummer.
> >
>
> In that case we simply need to add the relevant CLKDEV entries/aliases
> for the new platform. I don't think anything needs to be changed in the
> driver. We are still using clk_get(dev, clk_name), so the CLKDEV
> framework will return the best matching clock for the device.

fair enough ;-)

--
balbi

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