From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f45.google.com (mail-pj1-f45.google.com [209.85.216.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4D3A319B5A3 for ; Sat, 29 Aug 2026 06:38:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.45 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787985490; cv=none; b=D0nzGLhcb3yjlxKGEusIYfsON8uTBPH6ulszU5qNoj7URXBwxzvOEJbl6ugZfJ2T6aylE04dtDPBTAk/fCphL5LnE9sYwrBsF2zXTRLjm+CKyUxydCJTmsswY1HbgR9i6AF4uzImAoSMSmFXoFvkKNPZIAUSQsXBLipNGpGucxs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787985490; c=relaxed/simple; bh=r8bYo07SpGbBBI7dnVtYCZIooDNABB+5RG6MHH6OO1s=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=Rr2lmbk2s9DZPanQ22BtA6VhagZdQOez5IF4IbuGhzrpXFUcDW9409f8sgZrrMGOwvaOGMBlK+D9myDhPlw/qDq7frphHGJYCBUMOpNusXmiF9AhdrnHIS3xJuotdivuI3ONxgrLPQ8xw36gZNc/xJ7upyOqp1LLPERytYLcNgM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=nk7bmGkp; arc=none smtp.client-ip=209.85.216.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="nk7bmGkp" Received: by mail-pj1-f45.google.com with SMTP id 98e67ed59e1d1-39647aa9d52so1805657a91.0 for ; Fri, 28 Aug 2026 23:38:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1787985489; x=1788590289; darn=vger.kernel.org; h=content-transfer-encoding:content-type:mime-version:message-id:date :subject:cc:to:from:from:to:cc:subject:date:message-id:reply-to :content-type; bh=9gUDHNOKmIoQbqe9mzJt0j0l2zbHlvksIrYcKhCoTP4=; b=nk7bmGkpOL0RrH8PMw2ZVT2dWr/c9K/FtOSqnOnNGlOnlTZ+IvgSU1y6xRqdk2RFgY Nf++jc3ul/8/U/dyYXRGxiuRETxFydD2wj+KnyTl7TdoZqO4euOCmtdUUm26TgQ3u2g3 moIYHITpwuUJ/ZmVryBm+v/zpaqutp5HIipMGSK0o6ve/jfNkhTFy5qUjjJqlW0s6+Tk sa8esu8++3NkchacyzayLq4Ltg0riPyfZLxlTvjrYGIto2WpzyCvxdPBq1sVf4r4nUOB V9CovCPx88OQX3fdCXy0VIK93IHzIRz5I+zY2LAlGUH1ZYbxn9+n3ttOYg/IiO1c0Cvo qX9Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1787985489; x=1788590289; h=content-transfer-encoding:content-type:mime-version:message-id:date :subject:cc:to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to:content-type; bh=9gUDHNOKmIoQbqe9mzJt0j0l2zbHlvksIrYcKhCoTP4=; b=Y720ZhJATG+OuhqD+hzMTMCF9NLKlpxmz/Ho8sP1ODp9KOPJmPT7VGUNhxsMN5H7uL Jm3BaAHw/j8m9YGMss+QaXwRQ84oLLxs7xUcByk9Mjj4QrBikeM7Nz/PJdCtwCHmJqOz lJUqJ5qReFConUJiXvX1wfSh8YImOIFxFbIXsQ7fbT5syUtc2Iuj6U4tE8Jqetn8IwPN lq/GpdSL/KDgSnHhT1aL8ze1FpOBjstsuceKJM4bww4Nq1D0tmPCETI2kQz7f7w9oXqX m4M2SkyiQxs2DHAslDMXtkukMeZZ6hPUsE/kJyZbtvCzFR7WVXbGvYLgfBwq0A6HChC+ q1JA== X-Forwarded-Encrypted: i=1; AKwUvBybsqoSBs1qdrSxmLCvv3jh7dvcSpTENdQ3QXFvKYLUlYMMKEZSv9nH81MhI1d3hHX0DVwedObg7yp3@vger.kernel.org X-Gm-Message-State: AFuF++kbQUoM5NBSljuqiJTxDMtzJfpODRbhY2pg48WkEc8IlIuPeblW iPkNs4Cph1a0SoGJ07bumeNUh54nqexD2kyElkAcWorWycLDczixGLU= X-Gm-Gg: AYBFou2Q8qYlWUR+yH5S+SBnIykL8KObzQBJ+eNDK0KkV7YLXf1jZS1J7ePH9JqmIyu ZPQhvaJPrHr7Zy5wdUJWZet6c+OzfMPgG4S0Tmt1YLHWr+jlm996tUJMS9KnvPLFJKKwkYFrnSc 0zimOJqVASOfUhcDLbOPX1lkzAEKQj9emyneXZNHgwK6knypOEZ7495DskMR2sTs9VR9kywKeXs EN+AFAOCepXKBGslyBVuxkw9EmaEYo7PXSiElz45NQJTuHOgNzgkBfolyHy6sTdzXCCXBQy9yb5 I9JregDST6+W7DEFIPNs1tyUeB7E21CyFoollnKcOmjT0WR4lRZsl3GFyUHuBe6n0oviLrCL1Nh tCY88fguUn/b/FXS/L2RxzZ4+f9VvybyZQfzksZZvnF5FEMk16uXZxfTsjGcKhdjo/PmlW9XeEM ECnRoivdYG6F1nZBIMzhp7ZHEfJ6tpaGEleLPBd7XVsAzSefC1/9JRAUPUvimFQ85MpXFtAid0I NWSxz0sWtqchoMf2bWgKmoLDYs39lDEx/Egwrg= X-Received: by 2002:a17:90b:1644:b0:36b:b903:994 with SMTP id 98e67ed59e1d1-3969ba3c851mr22712524a91.4.1787985488496; Fri, 28 Aug 2026 23:38:08 -0700 (PDT) Received: from localhost.localdomain ([186.158.238.108]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-142e0d1abbdsm10957539c88.2.2026.08.28.23.38.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Aug 2026 23:38:08 -0700 (PDT) From: =?UTF-8?q?Nicol=C3=A1s=20Antinori?= To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: =?UTF-8?q?Nicol=C3=A1s=20Antinori?= , Brigham Campbell , Jori Koolstra , Shuah Khan , devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-kernel-mentees@lists.linux.dev Subject: [PATCH v3 0/3] Add support for CH1115 Controller Date: Sat, 29 Aug 2026 03:32:12 -0300 Message-ID: X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This series add support for the CH1115 Controller [1]. It is a monochrome dot matrix OLED controller that supports several interfaces such as SPI and I2C. This driver only supports the I2C interface, but all common parts could easily be put into a common file to be used with other interfaces. I only have I2C to test with. This is the first driver I write. The work is based on the driver located at: - drivers/gpu/drm/sitronix/st7571-i2c.c - drivers/gpu/drm/sitronix/st7571.c Tested with Raspberry Pi 3b+. Changelog: v3: - General: - Patch series based in kernel v7.2 - In dt-bindings: - Removed "chipwealth,contrast" property (added backlight_device support in driver's code) - Renamed "chipwealth,invert" -> "chipwealth,inverted" - Added default value to "chipwealth,offset" - Removed 'status = "okay"' from example - Indented example with 4 spaces as stated in the documentation [4] - In driver code: - Added support for backlight_device - Replaced drm_dev_unregister with drm_dev_unplug to cover the dt overlay unload case - Executing drm shutdown operations before turning off the display - Checking that the width (panel-timing.hactive) and height (panel-timing.vactive) parameters are greater than 0 v2: [3] - General: - Patch series based in kernel v7.2 - In dt-bindings: - Fixed linter problems - Replaced first_page property with offset - In driver code: - Fixed dst_pitch calculation - Renamed file from ch1115.c to ch1115-i2c.c - Support flip-vertical and flip-horizontal dt properties - Fixed several things found by sashiko-ai v1: [2] [1] https://datasheet4u.com/download/1576606/CH1115.html [2] https://lore.kernel.org/all/cover.1786110720.git.nico.antinori.7@gmail.com/ [3] https://lore.kernel.org/all/cover.1787321297.git.nico.antinori.7@gmail.com/ [4] https://docs.kernel.org/devicetree/bindings/writing-schema.html#annotated-example-schema Nicolás Antinori (3): dt-bindings: display: add Chipwealth CH1115 OLED Controller drm/ch1115: add support for Chipwealth CH1115 OLED controller MAINTAINERS: add entry for Chipwealth CH1115 OLED Controller .../bindings/display/chipwealth,ch1115.yaml | 81 ++ .../devicetree/bindings/vendor-prefixes.yaml | 2 + MAINTAINERS | 6 + drivers/gpu/drm/Kconfig | 1 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/chipwealth/Kconfig | 16 + drivers/gpu/drm/chipwealth/Makefile | 3 + drivers/gpu/drm/chipwealth/ch1115-i2c.c | 887 ++++++++++++++++++ 8 files changed, 997 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/chipwealth,ch1115.yaml create mode 100644 drivers/gpu/drm/chipwealth/Kconfig create mode 100644 drivers/gpu/drm/chipwealth/Makefile create mode 100644 drivers/gpu/drm/chipwealth/ch1115-i2c.c -- 2.47.3