Hi Alan
On Sat, 2 Mar 2024 at 01:49, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:
>
> On Sat, Mar 02, 2024 at 01:08:08AM +0530, Anand Moon wrote:
> > The devm_clk_get_enabled() helpers:
> > - call devm_clk_get()
> > - call clk_prepare_enable() and register what is needed in order to
> > call clk_disable_unprepare() when needed, as a managed resource.
> >
> > This simplifies the code and avoids the calls to clk_disable_unprepare().
> >
> > While at it, use dev_err_probe consistently, and use its return value
> > to return the error code.
> >
> > Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx>
> > ---
> > drivers/usb/host/ehci-exynos.c | 30 +++++-------------------------
> > 1 file changed, 5 insertions(+), 25 deletions(-)
> >
> > diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c
> > index f644b131cc0b..05aa3d9c2a3b 100644
> > --- a/drivers/usb/host/ehci-exynos.c
> > +++ b/drivers/usb/host/ehci-exynos.c
> > @@ -159,19 +159,12 @@ static int exynos_ehci_probe(struct platform_device *pdev)
> >
> > err = exynos_ehci_get_phy(&pdev->dev, exynos_ehci);
> > if (err)
> > - goto fail_clk;
> > -
> > - exynos_ehci->clk = devm_clk_get(&pdev->dev, "usbhost");
> > -
> > - if (IS_ERR(exynos_ehci->clk)) {
> > - dev_err(&pdev->dev, "Failed to get usbhost clock\n");
> > - err = PTR_ERR(exynos_ehci->clk);
> > - goto fail_clk;
> > - }
> > + goto fail_io;
> >
> > - err = clk_prepare_enable(exynos_ehci->clk);
> > - if (err)
> > - goto fail_clk;
> > + exynos_ehci->clk = devm_clk_get_enabled(&pdev->dev, "usbhost");
> > + if (IS_ERR(exynos_ehci->clk))
> > + return dev_err_probe(&pdev->dev, PTR_ERR(exynos_ehci->clk),
> > + "Failed to get usbhost clock\n");
>
> What about the usb_put_hcd(hcd) call that used to happen here?
>
Ok, I will update this in the next version.
> Alan Stern
Thanks
-Anand
