Re: [PATCHv2 0/2] net: fec: Reset ethernet PHY whenever the enet_out clock is being enabled

[Russell King - ARM Linux]

On Tue, Jan 12, 2016 at 04:17:54PM +0100, Lothar Waßmann wrote:
> This patchset fixes a regression introduced by
> commit e8fcfcd5684a ("net: fec: optimize the clock management to save power")
> for ethernet PHYs that are using ENET_OUT as reference clock (on i.MX6 or i.MX28)
> 
> Changes vs. v1:
> - fixed reference to the commit that introduced the regression.
> - dropped patch to use gpiod framework. This should be added later,
>   after the affected DTBs have been updated to specify the correct
>   gpio_flags.
> 
> Patch overview:
> 1. cleanup patch to remove redundant NULL checks
> 2. call fec_reset_phy() after the ENET_OUT clock has been enabled

I definitely want to test these on my SolidRun boards before these get
merged: the AR8035 on there is configured via pin-straps, and then
further tweaked with PHY quirks.  Resetting with the iMX6 in the
wrong state may result in the AR8035 being reconfigured (even jumping
to a different MDIO address) and certainly would need the PHY quirks
re-running.

-- 
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