netdev - Re: [PATCH] net: stmmac: fix disabling flexible PPS output

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Message-ID: <20191009161011.117c7f77@cakuba.netronome.com>
Date:   Wed, 9 Oct 2019 16:10:11 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Antonio Borneo <antonio.borneo@...com>
Cc:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S. Miller" <davem@...emloft.net>, <netdev@...r.kernel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] net: stmmac: fix disabling flexible PPS output

On Mon, 7 Oct 2019 17:43:05 +0200, Antonio Borneo wrote:
> Accordingly to Synopsys documentation [1] and [2], when bit PPSEN0
> in register MAC_PPS_CONTROL is set it selects the functionality
> command in the same register, otherwise selects the functionality
> control.
> Command functionality is required to either enable (command 0x2)
> and disable (command 0x5) the flexible PPS output, but the bit
> PPSEN0 is currently set only for enabling.
> 
> Set the bit PPSEN0 to properly disable flexible PPS output.
> 
> Tested on STM32MP15x, based on dwmac 4.10a.
> 
> [1] DWC Ethernet QoS Databook 4.10a October 2014
> [2] DWC Ethernet QoS Databook 5.00a September 2017
> 
> Signed-off-by: Antonio Borneo <antonio.borneo@...com>
> Fixes: 9a8a02c9d46d ("net: stmmac: Add Flexible PPS support")

Applied to net, queued for stable.