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Mon, 18 Apr 2022 20:51:36 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.7.0-alpha0-387-g7ea99c4045-fm-20220413.002-g7ea99c40 Mime-Version: 1.0 Message-Id: In-Reply-To: <20220418014059.3054-2-dylan_hung@aspeedtech.com> References: <20220418014059.3054-1-dylan_hung@aspeedtech.com> <20220418014059.3054-2-dylan_hung@aspeedtech.com> Date: Tue, 19 Apr 2022 10:21:15 +0930 From: "Andrew Jeffery" To: "Dylan Hung" , "Rob Herring" , "Joel Stanley" , "Andrew Lunn" , "Heiner Kallweit" , "Russell King" , "David Miller" , "Jakub Kicinski" , pabeni@redhat.com, "Philipp Zabel" , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, netdev , "Krzysztof Kozlowski" Cc: BMC-SW@aspeedtech.com, "Krzysztof Kozlowski" Subject: Re: [PATCH net-next RESEND v5 1/3] dt-bindings: net: add reset property for aspeed, ast2600-mdio binding Content-Type: text/plain X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_LOW,SPF_HELO_PASS, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 18 Apr 2022, at 11:10, Dylan Hung wrote: > The AST2600 MDIO bus controller has a reset control bit and must be > deasserted before manipulating the MDIO controller. By default, the > hardware asserts the reset so the driver only need to deassert it. > > Regarding to the old DT blobs which don't have reset property in them, > the reset deassertion is usually done by the bootloader so the reset > property is optional to work with them. > > Signed-off-by: Dylan Hung > Reviewed-by: Krzysztof Kozlowski Reviewed-by: Andrew Jeffery