On Mon, Nov 06, 2017 at 10:34:28AM +0530, Keerthy wrote:
>
>
> On Friday 03 November 2017 08:00 PM, Niklas Cassel wrote:
> > dra7xx_pcie_shutdown should be static.
> >
> > This patch introduces a new sparse warning.
>
> Thanks Niklas for reporting.
>
> Bjorn,
>
> Should i send a next version or just a fix patch on top of this?
Either way is fine. I'll just fold it in or replace the existing patch.
> > On Wed, Oct 11, 2017 at 9:32 PM, Bjorn Helgaas <helgaas@xxxxxxxxxx> wrote:
> >> On Wed, Sep 20, 2017 at 10:54:15AM +0530, Keerthy wrote:
> >>> Add shutdown handler to cleanly turn off clocks. This will help
> >>> in cases of kexec where in a new kernel can boot abruptly.
> >>>
> >>> Signed-off-by: Keerthy <j-keerthy@xxxxxx>
> >>> Acked-by: Kishon Vijay Abraham I <kishon@xxxxxx>
> >>
> >> Applied to pci/host-dra7xx for v4.15, thanks!
> >>
> >>> ---
> >>>
> >>> Changes in v4:
> >>>
> >>> * Added the missing changes from v2!
> >>>
> >>> Changes in v3:
> >>>
> >>> * Pushed the function outside #ifdef CONFIG_PM_SLEEP.
> >>> * Added more details to commit log.
> >>>
> >>> Changes in v2:
> >>>
> >>> * used a local dev pointer instead of dereferencing dev at multiple places.
> >>> * dra7xx_pcie_stop_link before disabling clks in the shutdown path.
> >>>
> >>> drivers/pci/dwc/pci-dra7xx.c | 17 +++++++++++++++++
> >>> 1 file changed, 17 insertions(+)
> >>>
> >>> diff --git a/drivers/pci/dwc/pci-dra7xx.c b/drivers/pci/dwc/pci-dra7xx.c
> >>> index 34427a6..d084800 100644
> >>> --- a/drivers/pci/dwc/pci-dra7xx.c
> >>> +++ b/drivers/pci/dwc/pci-dra7xx.c
> >>> @@ -794,6 +794,22 @@ static int dra7xx_pcie_resume_noirq(struct device *dev)
> >>> }
> >>> #endif
> >>>
> >>> +void dra7xx_pcie_shutdown(struct platform_device *pdev)
> >>> +{
> >>> + struct device *dev = &pdev->dev;
> >>> + struct dra7xx_pcie *dra7xx = dev_get_drvdata(dev);
> >>> + int ret;
> >>> +
> >>> + dra7xx_pcie_stop_link(dra7xx->pci);
> >>> +
> >>> + ret = pm_runtime_put_sync(dev);
> >>> + if (ret < 0)
> >>> + dev_dbg(dev, "pm_runtime_put_sync failed\n");
> >>> +
> >>> + pm_runtime_disable(dev);
> >>> + dra7xx_pcie_disable_phy(dra7xx);
> >>> +}
> >>> +
> >>> static const struct dev_pm_ops dra7xx_pcie_pm_ops = {
> >>> SET_SYSTEM_SLEEP_PM_OPS(dra7xx_pcie_suspend, dra7xx_pcie_resume)
> >>> SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(dra7xx_pcie_suspend_noirq,
> >>> @@ -807,5 +823,6 @@ static int dra7xx_pcie_resume_noirq(struct device *dev)
> >>> .suppress_bind_attrs = true,
> >>> .pm = &dra7xx_pcie_pm_ops,
> >>> },
> >>> + .shutdown = dra7xx_pcie_shutdown,
> >>> };
> >>> builtin_platform_driver_probe(dra7xx_pcie_driver, dra7xx_pcie_probe);
> >>> --
> >>> 1.9.1
> >>>
