Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751959AbdHDBRA (ORCPT ); Thu, 3 Aug 2017 21:17:00 -0400 Received: from vern.gendns.com ([206.190.152.46]:51986 "EHLO vern.gendns.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751866AbdHDBQ6 (ORCPT ); Thu, 3 Aug 2017 21:16:58 -0400 Subject: Re: [PATCH 0/6] Support for LEGO MINDSTORMS EV3 LCD display From: David Lechner To: =?UTF-8?Q?Noralf_Tr=c3=b8nnes?= , Andy Shevchenko Cc: dri-devel@lists.freedesktop.org, devicetree , David Airlie , Rob Herring , Mark Rutland , Sekhar Nori , Kevin Hilman , linux-fbdev@vger.kernel.org, linux-arm Mailing List , "linux-kernel@vger.kernel.org" , Daniel Vetter References: <1501355870-13960-1-git-send-email-david@lechnology.com> <5d8f6518-8d7e-c029-2da4-e3417afb3e40@lechnology.com> <28188f5c-1daf-121b-6daf-1899668c3875@tronnes.org> <1ce36d43-b9dd-807e-23aa-bac4fda70fdc@lechnology.com> <260320c5-8064-6388-168b-acad5a1aa0f2@tronnes.org> <03f423be-7b4c-13ec-7126-c0d9af6ebe4a@lechnology.com> Message-ID: <959f607c-f2ee-51d8-db39-1ef91859f22f@lechnology.com> Date: Thu, 3 Aug 2017 20:16:54 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 In-Reply-To: <03f423be-7b4c-13ec-7126-c0d9af6ebe4a@lechnology.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - vern.gendns.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - lechnology.com X-Get-Message-Sender-Via: vern.gendns.com: authenticated_id: davidmain+lechnology.com/only user confirmed/virtual account not confirmed X-Authenticated-Sender: vern.gendns.com: davidmain@lechnology.com X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1442 Lines: 37 On 08/03/2017 08:08 PM, David Lechner wrote: > On 08/03/2017 03:11 PM, Noralf Trønnes wrote: >> >> Den 03.08.2017 19.11, skrev Andy Shevchenko: >>> On Thu, Aug 3, 2017 at 8:09 PM, Andy Shevchenko >>> wrote: >>>> On Thu, Aug 3, 2017 at 6:18 PM, David Lechner >>>> wrote: >>>> >>>>> The particular display I have is this one: >>>>> http://wiki.seeed.cc/Grove-OLED_Display_1.12inch/ >>>>> >>>>> It looks like it uses a command/data scheme like the MIPI displays, >>>>> but >>>>> doesn't use any of the standard values for the commands. The >>>>> controller can >>>>> do parallel, SPI and I2C, but the display I have is wired for I2C. >>>> It looks very similar to ssd1306. Some description refers to ssd1308. >>> http://www.mouser.com/catalog/specsheets/Seeed_104030008.pdf >>> >> >> That pdf refers to another one: >> http://wiki.seeed.cc/Grove-OLED_Display_0.96inch/ >> There's an fbdev driver that supports ssd1305, ssd1306, ssd1307 and >> ssd1309: >> https://www.kernel.org/doc/Documentation/devicetree/bindings/display/ssd1307fb.txt >> >> http://elixir.free-electrons.com/linux/latest/source/drivers/video/fbdev/ssd1307fb.c >> >> Maybe the ssd1308 will work with that driver... >> > > The display I have uses a ssd1327 controller. It is 16-bit grayscale. > The ssd130x are all 1-bit monochrome. So, probably more like the ssd1325 > driver in fbftf. correction, 4-bit grayscale