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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Conor Dooley , Krzysztof Kozlowski , Heiner Kallweit , Russell King , Yanhong Wang Subject: Re: [PATCH v5 2/2] net: phy: motorcomm: Add pad drive strength cfg support Message-ID: <4081af9e-650f-433e-a520-b5417cabe695@lunn.ch> References: <20230720111509.21843-1-samin.guo@starfivetech.com> <20230720111509.21843-3-samin.guo@starfivetech.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230720111509.21843-3-samin.guo@starfivetech.com> X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,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 Thu, Jul 20, 2023 at 07:15:09PM +0800, Samin Guo wrote: > The motorcomm phy (YT8531) supports the ability to adjust the drive > strength of the rx_clk/rx_data, and the default strength may not be > suitable for all boards. So add configurable options to better match > the boards.(e.g. StarFive VisionFive 2) > > When we configure the drive strength, we need to read the current > LDO voltage value to ensure that it is a legal value at that LDO > voltage. > > Reviewed-by: Hal Feng > Signed-off-by: Samin Guo Reviewed-by: Andrew Lunn Andrew