On 30/07/15 08:15, Nathan Sullivan wrote:
> The ksz9031 has a behavior where it will clear the interrupt enable bits
> when leaving power down. To work around this, make sure the interrupt
> bits are in the state they are expected to be when resuming.
>
> Signed-off-by: Nathan Sullivan <nathan.sulli...@ni.com>
Reviewed-by: Florian Fainelli <f.faine...@gmail.com>
> ---
>
> Changes for V2: Actually make sure it compiles this time.
>
> ---
> drivers/net/phy/micrel.c | 18 +++++++++++++++++-
> 1 file changed, 17 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
> index 499185e..9774582 100644
> --- a/drivers/net/phy/micrel.c
> +++ b/drivers/net/phy/micrel.c
> @@ -447,6 +447,22 @@ static int ksz9031_center_flp_timing(struct phy_device
> *phydev)
> return genphy_restart_aneg(phydev);
> }
>
> +static int ksz9031_resume(struct phy_device *phydev)
> +{
> + int result;
> +
> + result = genphy_resume(phydev);
> +
> + if (result)
> + return result;
> +
> + /* This phy will reset interrupt enables when leaving power down */
> + if (PHY_INTERRUPT_ENABLED & phydev->interrupts)
> + result = kszphy_config_intr(phydev);
> +
> + return result;
> +}
> +
> static int ksz9031_config_init(struct phy_device *phydev)
> {
> const struct device *dev = &phydev->dev;
> @@ -776,7 +792,7 @@ static struct phy_driver ksphy_driver[] = {
> .ack_interrupt = kszphy_ack_interrupt,
> .config_intr = kszphy_config_intr,
> .suspend = genphy_suspend,
> - .resume = genphy_resume,
> + .resume = ksz9031_resume,
> .driver = { .owner = THIS_MODULE, },
> }, {
> .phy_id = PHY_ID_KSZ8873MLL,
>
--
Florian
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