On Fri, 2018-01-12 at 10:35 +0300, Sergei Shtylyov wrote:
> Hello!
>
> On 1/12/2018 8:51 AM, Benjamin Herrenschmidt wrote:
>
> > The Aspeed SoCs use uhci-platform. With the new dynamic clock
> > control framework, the corresponding IP block clock must be
> > properly enabled.
> >
> > This is a simplified variant of what ehci-platform does, it
> > looks for *one* clock attached to the device, and if it's
> > there, enables it.
> >
> > Signed-off-by: Benjamin Herrenschmidt <[email protected]>
>
> [...]
> > diff --git a/drivers/usb/host/uhci-platform.c
> > b/drivers/usb/host/uhci-platform.c
> > index 6cb16d4b2257..7d959071f92b 100644
> > --- a/drivers/usb/host/uhci-platform.c
> > +++ b/drivers/usb/host/uhci-platform.c
> > @@ -119,6 +119,21 @@ static int uhci_hcd_platform_probe(struct
> > platform_device *pdev)
> > "Enabled Aspeed implementation workarounds\n");
> > }
> > }
> > +
> > + /* Get and enable clock if any specified */
> > + uhci->clk = devm_clk_get(&pdev->dev, NULL);
> > + if (IS_ERR(uhci->clk)) {
> > + ret = PTR_ERR(uhci->clk);
> > + goto err_rmr;
> > + }
>
> Indent with tabs as elsewhere, please.
Oops, there should have been, I suppose a copy/paste brought spaces
from the original file ;-) I'll fix that.
> > + if (uhci->clk) {
> > + ret = clk_prepare_enable(uhci->clk);
> > + if (ret) {
> > + dev_err(&pdev->dev, "Error couldn't enable clock
> > (%d)\n", ret);
> > + goto err_rmr;
> > + }
> > + }
> > +
> > ret = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_SHARED);
> > if (ret)
> > goto err_rmr;
> >
>
> [...]
>
> MBR, Segei
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