netdev - Re: [PATCH] net: stmmac: dwmac-rk: Fix ethernet on rk3399 based devices

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Date:   Fri, 1 Oct 2021 16:02:38 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Heiko Stübner <heiko@...ech.de>
Cc:     netdev@...r.kernel.org, Punit Agrawal <punitagrawal@...il.com>,
        linux-rockchip@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, davem@...emloft.net,
        peppe.cavallaro@...com, alexandre.torgue@...s.st.com,
        Michael Riesch <michael.riesch@...fvision.net>
Subject: Re: [PATCH] net: stmmac: dwmac-rk: Fix ethernet on rk3399 based
 devices

On Wed, 29 Sep 2021 23:02:35 +0200 Heiko Stübner wrote:
> Am Mittwoch, 29. September 2021, 15:50:49 CEST schrieb Punit Agrawal:
> > Commit 2d26f6e39afb ("net: stmmac: dwmac-rk: fix unbalanced pm_runtime_enable warnings")
> > while getting rid of a runtime PM warning ended up breaking ethernet
> > on rk3399 based devices. By dropping an extra reference to the device,
> > the commit ends up enabling suspend / resume of the ethernet device -
> > which appears to be broken.
> > 
> > While the issue with runtime pm is being investigated, partially
> > revert commit 2d26f6e39afb to restore the network on rk3399.
> > 
> > Fixes: 2d26f6e39afb ("net: stmmac: dwmac-rk: fix unbalanced pm_runtime_enable warnings")
> > Suggested-by: Heiko Stuebner <heiko@...ech.de>
> > Signed-off-by: Punit Agrawal <punitagrawal@...il.com>
> > Cc: Michael Riesch <michael.riesch@...fvision.net>  
> 
> On a rk3399-puma which has the described issue,
> Tested-by: Heiko Stuebner <heiko@...ech.de>

Applied, thanks!