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[68.111.84.250]) by smtp.gmail.com with ESMTPSA id a7sm10303141pfa.19.2020.08.02.13.16.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 02 Aug 2020 13:16:58 -0700 (PDT) Subject: Re: [PATCH v2 1/4 net-next] dt-bindings: net: mdio: add reset-post-delay-us property To: Bruno Thomsen , netdev Cc: Andrew Lunn , Fabio Estevam , Russell King - ARM Linux , Heiner Kallweit , Lars Alex Pedersen , Bruno Thomsen References: <20200730195749.4922-1-bruno.thomsen@gmail.com> <20200730195749.4922-2-bruno.thomsen@gmail.com> From: Florian Fainelli Message-ID: Date: Sun, 2 Aug 2020 13:16:56 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Firefox/68.0 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20200730195749.4922-2-bruno.thomsen@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 7/30/2020 12:57 PM, Bruno Thomsen wrote: > Add "reset-post-delay-us" parameter to MDIO bus properties, > so it's possible to add a delay after reset deassert. > This is optional in case external hardware slows down > release of the reset signal. > > Signed-off-by: Bruno Thomsen Reviewed-by: Florian Fainelli > --- > Documentation/devicetree/bindings/net/mdio.yaml | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/Documentation/devicetree/bindings/net/mdio.yaml b/Documentation/devicetree/bindings/net/mdio.yaml > index d6a3bf8550eb..26afb556dfae 100644 > --- a/Documentation/devicetree/bindings/net/mdio.yaml > +++ b/Documentation/devicetree/bindings/net/mdio.yaml > @@ -39,6 +39,13 @@ properties: > and must therefore be appropriately determined based on all devices > requirements (maximum value of all per-device RESET pulse widths). > > + reset-post-delay-us: > + description: > + Delay after reset deassert in microseconds. It applies to all MDIO > + devices and it's determined by how fast all devices are ready for Uber nit: it is should be spelled out, but that does not warrant a resend. -- Florian