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Thu, 17 Sep 2026 23:55:12 -0500 Received: from [10.249.138.184] ([10.249.138.184]) by lelvem-mr06.itg.ti.com (8.18.1/8.18.1) with ESMTP id 68I4t5O5130390; Thu, 17 Sep 2026 23:55:06 -0500 Message-ID: <1f59a88c-b0b0-43d7-ba2f-4c50aae87ef4@ti.com> Date: Fri, 18 Sep 2026 10:25:04 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Betterbird (Windows) Subject: Re: [PATCH v3 2/2] drm/tiny: add support for PIXPAPER 4.26 monochrome e-ink panel To: Javier Martinez Canillas , Thomas Zimmermann , LiangCheng Wang CC: LiangCheng Wang , Maarten Lankhorst , Maxime Ripard , David Airlie , Simona Vetter , "Rob Herring" , Krzysztof Kozlowski , "Conor Dooley" , Wig Cheng , Neil Armstrong , Sam Ravnborg , , , , Tomi Valkeinen References: <20260529-bar-v3-0-5c2ac1c751ee@gmail.com> <20260529-bar-v3-2-5c2ac1c751ee@gmail.com> <2bfb73e6-dca3-4d93-af04-3c644929dd19@ti.com> <20260616083921.4066690-1-zaq14760@gmail.com> <423c3dca-9589-488d-8462-c3d51f05ee4a@ti.com> <20260617020926.114947-1-zaq14760@gmail.com> <8fcfab0f-6b98-478b-be4a-c5b810fb3524@ti.com> <20260731035705.3198816-1-zaq14760@gmail.com> <20260916082924.956116-1-zaq14760@gmail.com> <0a13ccb8-8817-4223-a4a2-0de594ac8c71@suse.de> <20260916094453.1062125-1-zaq14760@gmail.com> <20260917025644.1262504-1-zaq14760@gmail.com> <0259fb51-acb8-4b07-a6d5-2fe25fb0de9c@suse.de> Content-Language: en-US From: "Thakkar, Devarsh" In-Reply-To: Content-Type: text/plain; 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Specially >>> after the recent commit 3e391b0b516b ("drm/ssd130x: Add SSD135X_FAMILY >>> and SSD1351 support") that introduced a cmd_params_are_data flag that >>> allows to send the operation as command and the parameters as data. >>> >>> So the MCU interface seems to be the same, in particular for the >>> 4-wire SPI interface which AFAIU is what this new SSD1677 driver >>> supports. >> >> I cannot advice anything here, but at least I'd like to get ssd16xx out >> of tiny/. It would be great to have it all under solomon/. It looks like >> sitronix/ does a similar thing. >> > > Yes, I agree. Especially since there is even some (albeit small) code > that could be reused. Apologies for the delay. As to what I had looked on ssd130x family it was a different then the ssd16xx family which caters to e-paper, so I preferred to keep it separate and write only a generic ssd16xx driver. Yes, I plan to post ssd16xx support under solomon as suggested and that would handle both the pixpaper and good displays, LiangCheng had confirmed that pixpaper was functional with my staging series [0] albeit with few fixes [1]. I am reviewing those and will try to cherry pick them and include as part of my V2 I target to post v2 by end of next week, after running thorough tests on the epapers I have. Kindly let me know if we are aligned on this. [0]: https://github.com/devarsht/linux-next/commits/ssd16xx_7_2/ [1]: https://lore.kernel.org/all/20260731-ssd16xx-pixpaper-rpi5-v1-0-18ffc0dbf59a@gmail.com/ Regards Devarsh >