From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f44.google.com (mail-pj1-f44.google.com [209.85.216.44]) (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 4D0953F1059 for ; Sat, 29 Aug 2026 06:38:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787985492; cv=none; b=rGelknmPXio1oIBckwXGM8AiuuAQaYPoiHyxcAnfqsnONms/kAzlO7vdv6gRdrl52aogAr4lQNTPnj3D9XSEqy4H/31ML0bR+qplwH0io4YnFCB1HBTcJtMKLaoGFDsnsIkeVkIKy2bBYtucCbtvGEZVnthOESesqrTNGKZEwQ0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787985492; c=relaxed/simple; bh=r8bYo07SpGbBBI7dnVtYCZIooDNABB+5RG6MHH6OO1s=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version:Content-Type; b=E/aDFlKlCsGhorEbM1Gh/eIyP/6FauSKK5oKApywSNg5WddygPFvzlRnVVYbNvYDFNZCYT/wPjastVh7AjK9Wf+VEForO7u6fL3Z6FCbroAcbalCQV0gLg2qCsQfhEuNaPf9TX+WlJmww4BolIHmxLqHejLMpbjqDN7TpvUSD1A= 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=hiApGyh9; arc=none smtp.client-ip=209.85.216.44 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="hiApGyh9" Received: by mail-pj1-f44.google.com with SMTP id 98e67ed59e1d1-39647aa9d52so1805658a91.0 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=lists.linux.dev; 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=hiApGyh9RuDA3zcm6rKS5kOMuV+gHzTdfJ9+8e40TNCbEoco20cC/GQwcHCi6Ao6JS CgHXugKnQBpezkzDMBcGOVHejPdi4YkOHecSYH/yxV2ih38RWaE13hbRPnc6aW+h0PTP QkSqhQuAekTpKnTUpOqwCNfiSjVVItaSagSUE0gix5wD176Jy9hEuiLN83sfhTsUyXx9 pbcUvcw4ejnzQALuAfCknW4pB3pzTXmm4XbaOcbvLPfc7WMK8mMdYkpx4cQ3YkPBTprP WzDP2pb8OOnV+kr9R/yvmPJzci5qsf5xy6AOkzpB2BRwHkziSaeTZZ9OKNkKpWE+Zn6V 9Zkg== 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=IA4i2tPWV6JqIMkUdWt4tewjQ6N9V/iunvWKrr39niEjJpSPJ2FNlcpfTF7Tgeic2k k0vJ/WRy4YcGhkdoqWMzcXyFjadATh2+f8cDMR9Hyu3ELQt//PMjOzy8dCuyQFI3NXPe hptOHmaPpajGoPvmZYWIwOPC72YmXUl65jHwhyMd2wTvrUoY168giqbJ6MCkoapzp49v M6kKhQF7U49KEFPQjIhuxUNj5I8jZUFcLJcFWsUBOvCEmRavSGqnAWS3gBRqswYszpNM ktN/dmsDwsRpxvofn3jlGMIqV3becPzhj+JkGMK2IS4jJS5SkxRWSw7/BCdUJoLa1+mu nUyQ== X-Forwarded-Encrypted: i=1; AKwUvBwUQqbxhUEbV4tKxStkBklI0bydWwySQBGCbc34EDYX1BAT7wIeP7PLhu1duDESwBc06CT57xj2Z4c55qTKQs8XYFORAQ==@lists.linux.dev X-Gm-Message-State: AFuF++lfPCm5QOQCaHVWEt84ZJwFdbCCIkcMv7o4Ti/2pEgWioW8RcK8 dfqHi9t/gbTxYvOaGQZhC7uCJGwQhcMNM2ZjzpmStjHQc204xDhHzlo= X-Gm-Gg: AYBFou34pmDMUFBfRNj5OczVvnz1ZhqhblpkuQNANrt+v6rwlhwLO1nT/CHlZssAHPQ eityISJRKCXLfIzh6/fHzGS894t6EXfZJflgwhVfzlX37PKBGp2FyuK8BlDLtd4xukmS9IBDJ96 FCe07gOuvKkugjBBqB8LzqfUDLhmxvg2qPUrxMr/0hFZ8ibLXCeAG+wObcs/C8ZnFLgEaSBf3BG kM+uJGwjbdsiDi6qEs06SlhDDkkUq/E8DzfpohD/GhiRkSn5Pr1Zj1J9gDroKy4oSlIsQu2KVGd Q5hio0TJqCfb2VUY5Ti9MVy15xTIvTPzAEd4Wfb2z1Vp+xrYQw3p+esxH6VaL5z8y9mmWrvELol 8WPYKbnLD8+tCv6sOMkwkXqoE+WhbbgaCY+CKeWSU5STPeBNEIoy4VYrzUbnN3CbR58Ho1xC9cx Alsp3tiXIos++7inJ2SghMMQJX3ECJgd+X1bcNrUWNBRd7F8YpAukbU4vZgApE9onqsalB/bhLj GGPA3Cbe76aaMwZUARlyqRrVfZJBV7pRbhDlRM= 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: linux-kernel-mentees@lists.linux.dev 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