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Sat, 25 Jul 2026 05:11:14 -0700 (PDT) Message-ID: <051ca77a-4308-4084-b9c1-5bbe4ea39f9c@gmail.com> Date: Sat, 25 Jul 2026 20:11:09 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] drm/panel-edp: Add BOE NE140QDM-NX2 To: Doug Anderson Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org References: <697e79c2-98a9-4bb3-b5fb-db327cbe1bce@gmail.com> Content-Language: en-US From: Weiji Wang In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi there, On 7/24/26 23:24, Doug Anderson wrote: > This is not sorted properly. 0x0af2 does not belong between 0x0b1e and 0x0b34. > > ...I could fix that when applying, but I also have a question: do you > have access to the datasheet of this panel, or are you just guessing > the right timing by looking at the nearby panels? I assume you have > this panel yourself for testing and confirm it seems to work OK. The datasheet is taken from Panelook. I have to mention that enable delay is not directly available in the datasheet, only (T4+T5+T6+T8)-min is given. I'm not really familiar with eDP panels, so I'm not sure if using 'prepare_to_enable' instead of 'enable' will break anything on devices without HPD enabled. However, appearently (T4+T5+T6+T8)-min is greater than (T6-min + max(T7-max, T8-min)), so I believe that setting 'enable' to (T4+T5+T6+T8)-min is conservative enough. Is it proper to switch to 'delay_200_500_p2e80' (use 'prepare_to_enable' instead)? If so, I would change it and also the panel entry sorting.