lkml.org 
[lkml]   [2020]   [Jul]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v1 06/11] sundance: use generic power management
    Date
    With legacy PM, drivers themselves were responsible for managing the
    device's power states and takes care of register states.

    After upgrading to the generic structure, PCI core will take care of
    required tasks and drivers should do only device-specific operations.

    Thus, there is no need to call the PCI helper functions like
    pci_enable/disable_device(), pci_save/restore_sate() and
    pci_set_power_state().

    Compile-tested only.

    Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
    ---
    drivers/net/ethernet/dlink/sundance.c | 27 ++++++++-------------------
    1 file changed, 8 insertions(+), 19 deletions(-)

    diff --git a/drivers/net/ethernet/dlink/sundance.c b/drivers/net/ethernet/dlink/sundance.c
    index dc566fcc3ba9..ca97e321082d 100644
    --- a/drivers/net/ethernet/dlink/sundance.c
    +++ b/drivers/net/ethernet/dlink/sundance.c
    @@ -1928,11 +1928,9 @@ static void sundance_remove1(struct pci_dev *pdev)
    }
    }

    -#ifdef CONFIG_PM
    -
    -static int sundance_suspend(struct pci_dev *pci_dev, pm_message_t state)
    +static int __maybe_unused sundance_suspend(struct device *dev_d)
    {
    - struct net_device *dev = pci_get_drvdata(pci_dev);
    + struct net_device *dev = dev_get_drvdata(dev_d);
    struct netdev_private *np = netdev_priv(dev);
    void __iomem *ioaddr = np->base;

    @@ -1942,30 +1940,24 @@ static int sundance_suspend(struct pci_dev *pci_dev, pm_message_t state)
    netdev_close(dev);
    netif_device_detach(dev);

    - pci_save_state(pci_dev);
    if (np->wol_enabled) {
    iowrite8(AcceptBroadcast | AcceptMyPhys, ioaddr + RxMode);
    iowrite16(RxEnable, ioaddr + MACCtrl1);
    }
    - pci_enable_wake(pci_dev, pci_choose_state(pci_dev, state),
    - np->wol_enabled);
    - pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state));
    +
    + device_set_wakeup_enable(dev_d, np->wol_enabled);

    return 0;
    }

    -static int sundance_resume(struct pci_dev *pci_dev)
    +static int __maybe_unused sundance_resume(struct device *dev_d)
    {
    - struct net_device *dev = pci_get_drvdata(pci_dev);
    + struct net_device *dev = dev_get_drvdata(dev_d);
    int err = 0;

    if (!netif_running(dev))
    return 0;

    - pci_set_power_state(pci_dev, PCI_D0);
    - pci_restore_state(pci_dev);
    - pci_enable_wake(pci_dev, PCI_D0, 0);
    -
    err = netdev_open(dev);
    if (err) {
    printk(KERN_ERR "%s: Can't resume interface!\n",
    @@ -1979,17 +1971,14 @@ static int sundance_resume(struct pci_dev *pci_dev)
    return err;
    }

    -#endif /* CONFIG_PM */
    +static SIMPLE_DEV_PM_OPS(sundance_pm_ops, sundance_suspend, sundance_resume);

    static struct pci_driver sundance_driver = {
    .name = DRV_NAME,
    .id_table = sundance_pci_tbl,
    .probe = sundance_probe1,
    .remove = sundance_remove1,
    -#ifdef CONFIG_PM
    - .suspend = sundance_suspend,
    - .resume = sundance_resume,
    -#endif /* CONFIG_PM */
    + .driver.pm = &sundance_pm_ops,
    };

    static int __init sundance_init(void)
    --
    2.27.0
    \
     
     \ /
      Last update: 2020-07-01 15:03    [W:3.671 / U:0.092 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site