Hi Florian,
> -----Original Message-----
> From: Florian Fainelli [mailto:f.faine...@gmail.com]
> Sent: 2016年8月4日 11:33
> To: Wenyou Yang <wenyou.y...@atmel.com>
> Cc: netdev@vger.kernel.org; linux-ker...@vger.kernel.org; linux-arm-
> ker...@lists.infradead.org; Alexandre Belloni <alexandre.belloni@free-
> electrons.com>; Nicolas Ferre <nicolas.fe...@atmel.com>; Andrew Lunn
> <and...@lunn.ch>
> Subject: Re: [PATCH v1] net: phy: micrel: Add specific suspend
>
> On 03/08/2016 17:21, Wenyou Yang wrote:
> > Disable all interrupts when suspend, they will be enabled when resume.
> > Otherwise, the suspend/resume process will be blocked occasionally.
>
> This seems like something fairly generic actually, we could imagine having the
> core library do something like this:
>
> - if interrupts are valid and enabled for the PHY, call
> phydrv->config_intr() with PHY_INTERRUPT_DISABLED
> - call genphy_suspend
Accepted. I will send a new version.
>
> Of course if none of this fits the generic model, the PHY driver can still
> provide a
> suspend callback. Might be worth auditing other drivers for that pattern and
> look at
> those that need specific handling like keeping specific interrupt sources
> active for
> e.g: wake-on-LAN.
>
> >
> > Signed-off-by: Wenyou Yang <wenyou.y...@atmel.com>
> > Acked-by: Nicolas Ferre <nicolas.fe...@atmel.com>
> > ---
> >
> > drivers/net/phy/micrel.c | 19 ++++++++++++++++++-
> > 1 file changed, 18 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index
> > 5a8fefc..8cb778a 100644
> > --- a/drivers/net/phy/micrel.c
> > +++ b/drivers/net/phy/micrel.c
> > @@ -647,6 +647,23 @@ static void kszphy_get_stats(struct phy_device
> *phydev,
> > data[i] = kszphy_get_stat(phydev, i); }
> >
> > +int kszphy_suspend(struct phy_device *phydev) {
> > + int value;
> > +
> > + mutex_lock(&phydev->lock);
> > +
> > + /* disable interrupts */
> > + phy_write(phydev, MII_KSZPHY_INTCS, 0x0);
> > +
> > + value = phy_read(phydev, MII_BMCR);
> > + phy_write(phydev, MII_BMCR, value | BMCR_PDOWN);
> > +
> > + mutex_unlock(&phydev->lock);
> > +
> > + return 0;
> > +}
> > +
> > static int kszphy_resume(struct phy_device *phydev) {
> > int value;
> > @@ -870,7 +887,7 @@ static struct phy_driver ksphy_driver[] = {
> > .get_sset_count = kszphy_get_sset_count,
> > .get_strings = kszphy_get_strings,
> > .get_stats = kszphy_get_stats,
> > - .suspend = genphy_suspend,
> > + .suspend = kszphy_suspend,
> > .resume = kszphy_resume,
> > }, {
> > .phy_id = PHY_ID_KSZ8061,
> >
Best Regards,
Wenyou Yang
