lkml.org 
[lkml]   [2016]   [Jul]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PACTH v1 1/2] usb: xhci: plat: Enable runtime PM
Date

Hi,

robert.foss@collabora.com writes:
> From: Andrew Bresticker <abrestic@chromium.org>
>
> Enable runtime PM for the xhci-plat device so that the parent device
> may implement runtime PM.
>
> Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
> Tested-by: Robert Foss <robert.foss@collabora.com>
> Signed-off-by: Robert Foss <robert.foss@collabora.com>
> ---
> drivers/usb/host/xhci-plat.c | 19 +++++++++++++++++--
> 1 file changed, 17 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
> index ed56bf9..fbd45c2 100644
> --- a/drivers/usb/host/xhci-plat.c
> +++ b/drivers/usb/host/xhci-plat.c
> @@ -246,6 +246,9 @@ static int xhci_plat_probe(struct platform_device *pdev)
> if (ret)
> goto dealloc_usb2_hcd;
>
> + pm_runtime_set_active(&pdev->dev);
> + pm_runtime_enable(&pdev->dev);
> +
> return 0;
>
>
> @@ -274,6 +277,8 @@ static int xhci_plat_remove(struct platform_device *dev)
> struct xhci_hcd *xhci = hcd_to_xhci(hcd);
> struct clk *clk = xhci->clk;
>
> + pm_runtime_disable(&dev->dev);
> +
> usb_remove_hcd(xhci->shared_hcd);
> usb_phy_shutdown(hcd->usb_phy);
>
> @@ -292,7 +297,9 @@ static int xhci_plat_suspend(struct device *dev)
> {
> struct usb_hcd *hcd = dev_get_drvdata(dev);
> struct xhci_hcd *xhci = hcd_to_xhci(hcd);
> + int ret;
>
> + pm_runtime_get_sync(dev);

you need to check for possible errors here. Ditto to the other occurence
below.

--
balbi
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2016-07-29 11:01    [W:0.075 / U:4.004 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site