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From: John Watts To: Paul Cercueil Cc: dri-devel@lists.freedesktop.org, Neil Armstrong , Jessica Zhang , Sam Ravnborg , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Heiko Stuebner , Chris Morgan , Jagan Teki , Christophe Branchereau , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [RFC PATCH v3 4/7] drm/panel: nv3052c: Add Fascontek FS035VG158 LCD display Message-ID: References: <20230925021059.451019-1-contact@jookia.org> <20230925021059.451019-5-contact@jookia.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Migadu-Flow: FLOW_OUT X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (agentk.vger.email [0.0.0.0]); Mon, 25 Sep 2023 02:49:11 -0700 (PDT) On Mon, Sep 25, 2023 at 11:43:26AM +0200, Paul Cercueil wrote: > From what I can see, you have a panel with a NV3052C chip, so the > existing initialization sequence should already work. It has some differences that I don't know if are important. > The NV3052C datasheet does not give any settings for a 640x480 panel, I > only see suggested settings for a 720x1280 vertical panel. > > Unless you have a min/max range specified, the values you see in there > are only suggestions for a working setup, that doesn't mean they are > the only recommended ones. The panel datasheet has these values. > > Cheers, > -Paul John.