Re: [PATCH net-next 0/3] net: dsa: restore HWMON support in dsa2

[Vivien Didelot]

Hi Andrew,

Andrew Lunn <andrew@xxxxxxx> writes:

> On Tue, Jan 03, 2017 at 01:15:35PM -0500, Vivien Didelot wrote:
>> The current HWMON support in DSA in embedded in the legacy code.
>> Extract it to its own file and register it in the newer DSA code.
>
> I would really prefer not to do this.
>
> The temperature sensor is in the embedded PHYs of the switch. Many of
> Marvell discrete PHYs also have the same temperature sensor. The
> correct thing to do is move this code into drivers/net/phy/marvell.c.

I agree that the temperature code in the mv88e6xxx driver must be moved
to the Marvell PHY driver.

However I still think this patchset is still valuable because at least
it isolates the HWMON code in DSA which is good, and I think some chips
do have temperature sensors in their cores, not in their PHYs. So the
new DSA code should benefit from the HWMON support instead of
considering this a regression for its users.

Thanks,

        Vivien