netdev - Re: [PATCH net-next v2 06/21] net: ravb: Assert/de-assert reset on suspend/resume

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Date: Thu, 14 Dec 2023 23:58:05 +0300
From: Sergey Shtylyov <s.shtylyov@....ru>
To: Claudiu <claudiu.beznea@...on.dev>, <davem@...emloft.net>,
	<edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
	<richardcochran@...il.com>, <p.zabel@...gutronix.de>,
	<yoshihiro.shimoda.uh@...esas.com>, <wsa+renesas@...g-engineering.com>,
	<geert+renesas@...der.be>
CC: <netdev@...r.kernel.org>, <linux-renesas-soc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Claudiu Beznea
	<claudiu.beznea.uj@...renesas.com>
Subject: Re: [PATCH net-next v2 06/21] net: ravb: Assert/de-assert reset on
 suspend/resume

On 12/14/23 2:45 PM, Claudiu wrote:

> From: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>
> 
> RZ/G3S can go to deep sleep states where power to most of the SoC parts is
> off. When resuming from such a state, the Ethernet controller needs to be
> reinitialized. De-asserting the reset signal for it should also be done.
> Thus, add reset assert/de-assert on suspend/resume functions.
> 
> On the resume function, the de-assert was not reverted in case of failures
> to give the user a chance to restore the interface (e.g., bringing down/up
> the interface) in case suspend/resume failed.
> 
> Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com>

Reviewed-by: Sergey Shtylyov <s.shtylyov@....ru>

[...]

MBR, Sergey