Re: [PATCH net-next 5/5] net: phy: marvell10g: Utilize gen10g_soft_reset()

Moritz Fischer
2018-02-28T19:49:27Z

Florian,

On Wed, Feb 28, 2018 at 11:44 AM, Russell King <rmk@armlinux.org.uk> wrote:
> On Wed, Feb 28, 2018 at 11:36:12AM -0800, Florian Fainelli wrote:
>> We do the same thing as the generic function: nothing, so utilize it.
>>
>> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
>> ---
>> drivers/net/phy/marvell10g.c | 7 +------
>> 1 file changed, 1 insertion(+), 6 deletions(-)
>>
>> diff --git a/drivers/net/phy/marvell10g.c b/drivers/net/phy/marvell10g.c
>> index 8a0bd98fdec7..da014eae1476 100644
>> --- a/drivers/net/phy/marvell10g.c
>> +++ b/drivers/net/phy/marvell10g.c
>> @@ -75,11 +75,6 @@ static int mv3310_probe(struct phy_device *phydev)
>> * Resetting the MV88X3310 causes it to become non-responsive. Avoid
>> * setting the reset bit(s).
>> */
>> -static int mv3310_soft_reset(struct phy_device *phydev)
>> -{
>> - return 0;
>> -}
>> -
>
> You do realise that getting rid of that function makes a nonsense of the
> comment above it - and removing the comment along with the function gets
> rid of the very important reason _why_ we have en empty reset method?
>
>> static int mv3310_config_init(struct phy_device *phydev)
>> {
>> __ETHTOOL_DECLARE_LINK_MODE_MASK(supported) = { 0, };
>> @@ -377,7 +372,7 @@ static struct phy_driver mv3310_drivers[] = {
>> SUPPORTED_10000baseT_Full |
>> SUPPORTED_Backplane,
>> .probe = mv3310_probe,
>> - .soft_reset = mv3310_soft_reset,
>> + .soft_reset = gen10g_soft_reset,
>> .config_init = mv3310_config_init,
>> .config_aneg = mv3310_config_aneg,
>> .aneg_done = mv3310_aneg_done,
>> --
>> 2.14.1
>>
>
> --
> Russell King
> ARM architecture Linux Kernel maintainer

FWIW I have a local patch that goes something like that, which I meant to send
at one point and forgot

Something like that:

static int gen10g_soft_reset(struct phy_device *phydev)
{
+ int val;
+
+ val = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL1);
+ if (val < 0)
+ return val;
+
+ val |= MDIO_CTRL1_RESET;
+ phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1, val);
+
- /* Do nothing for now */
return 0;
}

If that looks reasonable I can properly submit a patch,

Moritz