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[92.176.231.205]) by smtp.gmail.com with ESMTPSA id u21-20020a05600c00d500b003ee4e99a8f6sm14389362wmm.33.2023.04.04.01.25.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Apr 2023 01:25:54 -0700 (PDT) From: Javier Martinez Canillas To: Peter Robinson , Jarrah Cc: Heiko =?utf-8?Q?St=C3=BCbner?= , linux-kernel@vger.kernel.org, Caleb Connolly , Krzysztof Kozlowski , Martijn Braam , Ondrej Jirman , Rob Herring , Tom Fitzhenry , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org Subject: Re: [PATCH] arm64: dts: rockchip: Change serial baud rate for Pinephone Pro to 1.5 MB In-Reply-To: References: <20230403175937.2842085-1-javierm@redhat.com> <3738011.44csPzL39Z@diego> Date: Tue, 04 Apr 2023 10:25:53 +0200 Message-ID: <87edp0dpf2.fsf@minerva.mail-host-address-is-not-set> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Peter Robinson writes: > On Tue, Apr 4, 2023 at 9:13=E2=80=AFAM Jarrah wrote: >> >> Hi, >> >> On 4/4/23 17:51, Heiko St=C3=BCbner wrote: >> > The interesting question is always if this will break someone else's s= etup. >> > I've never really understood the strange setting of 1.5MBps, but on the >> > other hand it _is_ a reality on most boards. >> > >> > Personally I don't care that much either way, but would like a comment >> > from the other people working on that device - if possible. >> >> >> I don't have a strong opinion either way, but I would note that >> Tow-Boot[0] which later models of this device ship with uses 115200, >> meaning that this would put the device out of sync with the default >> u-boot implementation from the factory. > > Upstream U-Boot support uses the 1.5m that all the other rockchip devices= use. > That's true too. In fact, the Pinebook Pro also uses 1.5m so people using Tow-Boot already will have a mismatch when using that device. The PPP is the device that is not consistent with all the other rk3399 boards. --=20 Best regards, Javier Martinez Canillas Core Platforms Red Hat