From patchwork Wed May 28 15:42:30 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bram Vlerick X-Patchwork-Id: 893414 Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) (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 06E3F2868BA for ; Wed, 28 May 2025 15:43:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.44 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748447011; cv=none; b=GX3f9CuUNNmh0vXQk1f3gDw4IqPqX/GCjDqHaPqUI6rr6F91bWNBb06c5ZfU0+NVH633i71iJdXn0m0yNvT5Fhz2xIrepKNgm41j64N79XXkRinPuPk5j76O/e77LnQW8wMl4/pJ7woIaZe+KuSSsfOpMnBD7dukVa/DUhwdIr4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748447011; c=relaxed/simple; bh=BMRUJzr0/HLa3ogV5/HusC1YamEdyusN8YfIZyUZixE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=ZIz88asDfX1NDhZK9DiQbyVnIlm7GnXSB7k1NbcjoI0VXFXGypNmhfMynLmCnUQMDNY3BBTecA/FOo3kjsvsUUMHsINFnVKQdrM1AskILqM0Re2MqUKdfN4vQEuf/0EODUvzkmn7T2qcqILfMnw9c8DtopBZeA3iuAEIe5cpw+M= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=openpixelsystems.org; spf=fail smtp.mailfrom=openpixelsystems.org; dkim=pass (2048-bit key) header.d=openpixelsystems-org.20230601.gappssmtp.com header.i=@openpixelsystems-org.20230601.gappssmtp.com header.b=aScVngs8; arc=none smtp.client-ip=209.85.128.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=openpixelsystems.org Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=openpixelsystems.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=openpixelsystems-org.20230601.gappssmtp.com header.i=@openpixelsystems-org.20230601.gappssmtp.com header.b="aScVngs8" Received: by mail-wm1-f44.google.com with SMTP id 5b1f17b1804b1-43d2d952eb1so113535e9.1 for ; Wed, 28 May 2025 08:43:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=openpixelsystems-org.20230601.gappssmtp.com; s=20230601; t=1748447005; x=1749051805; darn=vger.kernel.org; h=cc:to:message-id:content-transfer-encoding:mime-version:subject :date:from:from:to:cc:subject:date:message-id:reply-to; bh=6yl6vUzUKKmJBwsdJArAjkBP/TBHxNgwshqS0VE0gt4=; b=aScVngs882WoC93xQwNq7Q2oSc1CtKNQesfcsZVLy3fELFT+14D06Qi1wSJ2UjU96a B2yiYtMfj0dlZi8t9CXm5TgaX1kK87HSYTMO6p8xCGHkgcQwzUhvERa+w9ztbpPsPp2P NuqUbBlvwKXJwSObGdaw7lqoyAcLvqRNRIYek/hlB0SKQV4L1qpQwKQc86EYdfrEJSui 2AwN5AyEMkeAoWQAJg9nQb8G+YpCZps2L+PO1N2GmvEEeC12zRaDI/Mavu5QKZgo/pGM SqKq1TBq6pRJZu5VlC3rY9GS+oEjc50bVbeOnNigDgXGzjadKsPuEjrPUpFPEwNWew/0 XpAg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1748447005; x=1749051805; h=cc:to:message-id:content-transfer-encoding:mime-version:subject :date:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=6yl6vUzUKKmJBwsdJArAjkBP/TBHxNgwshqS0VE0gt4=; b=d/EpSvCsNK5THBI3AiQtKyrjZOs+OkyyDSqY7hAIoIYVG9QfBLXL6oVDF1Qp6fK52u njRjvHlezf0SitPr2K2/OUCEoysXxY2moVdiHW+wG647hdKTqfnwcsihVOwA8NMXsEYs QjAdRPRXf6WN6KRxXRdLuvqG1oPR+ekZ9/rWvWfaEMeROZfZvCHhJ+kfbsSvqtPG3use dW+XiLFuvyrnGWGtL+gCNdmvHgGv/uNYUeLxBNCjBhuZASE+VxX9uZWOFOjNi5F+Wx/X 5p0MJp/0BJ8XXVXfS18PGvYdbEYGX3lUruSFtfayQwxbj7LyglqwkXJPRhdonZldxnNB N6eA== X-Forwarded-Encrypted: i=1; AJvYcCXqohfOP/ozILSxgD1ogq4yIqBITKJYOvNkVVpK94wErRCaQLYcMzE7YcfZsi6uqD4fGaQ4SqMrVzzlAw==@vger.kernel.org X-Gm-Message-State: AOJu0YzfwkBk6t9vTxXstDJXHm/YCZZVpMqyd07xoBDgzQ6kKoEhCCa2 +yZyylZ/zF90V904USqqT8yblJcD+B+PFaeCXpyMnllcjY7VjYYoCG0PMWAB4Zt7wOo7FTzcJk3 yzmNO4Go= X-Gm-Gg: ASbGncsYF6oODMBMKv4uRNoliFwr2LO5JcsrCh/C44UqNm212jHGQRx9VIy6clJoZru uxEV/p064+hodk7uBm8HZ6l/pNQbhvnjTqjKkFcMt+mquvksOss3x10WqojpMeDJF+LHw6IrfHC ePGbHJW1kwaixe/bTfc0kH0XodFEmHjt2lOyINdseMAvsUTnPjHx48SkIW4O2YDm8A/AAklYY/u DC+YWu+kBtuOZ28YnMS3vO8LrfGJlMOeRQWbQMPR2ohvKvlk2GeD0PrPvkK3j0ZeEIKjFKEW/NT jEdxXT3bDoIrGOUoYFedmgKKhULfJ23W9yJqIs/ehzz8E6LakjWYITiGh10b9TxFqjMZPvWWEF/ 2CTLutEfgC1XMxDUfgtI076cBSmu7fpTNjcUKEsnaoio= X-Google-Smtp-Source: AGHT+IFbbv0BZAtT3+HnJDyyTNgCMRJZb9KZLNLH4dIHpFGSJZsnxop7uFuUlZaFtez53aVT2kI+Hg== X-Received: by 2002:a05:600c:6214:b0:43c:e467:d6ce with SMTP id 5b1f17b1804b1-44cc05358b3mr170613645e9.4.1748447004994; Wed, 28 May 2025 08:43:24 -0700 (PDT) Received: from [10.0.12.41] (253.124-78-194.adsl-static.isp.belgacom.be. [194.78.124.253]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a4eacd6f1bsm1769856f8f.80.2025.05.28.08.43.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 May 2025 08:43:24 -0700 (PDT) From: Bram Vlerick Date: Wed, 28 May 2025 17:42:30 +0200 Subject: [PATCH] staging: fbtft: add invert display parameter Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20250528-ili9341-invert-dtb-v1-1-080202809332@openpixelsystems.org> X-B4-Tracking: v=1; b=H4sIAOUuN2gC/x3MTQqAIBBA4avErBswS/u5SrSoHGsgLFQiCO+et PwW770QyDMFGIoXPN0c+HQZVVnAus9uI2STDVJIJZTskA/u66ZCdjf5iCYuKNpZaaVJG2sgh5c ny88/HaeUPolD9bRkAAAA X-Change-ID: 20250528-ili9341-invert-dtb-07a5656e6dfd To: Greg Kroah-Hartman Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Bram Vlerick X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2995; i=bram.vlerick@openpixelsystems.org; h=from:subject:message-id; bh=BMRUJzr0/HLa3ogV5/HusC1YamEdyusN8YfIZyUZixE=; b=owEBbQKS/ZANAwAIAblauka9BQbwAcsmYgBoNy8chB2y8w5nbK9+RztKsMs3unwb1aVwo2U36 FwTbirKHOeJAjMEAAEIAB0WIQQO7PtG7b77XLxuay25WrpGvQUG8AUCaDcvHAAKCRC5WrpGvQUG 8GvpD/9SsZFzhvQs0gQHp72J5bWBgaHGOAaSW43Xne+PZMAjdUCH4O23F2Syc387TEDUe/FTeWZ kp5HtOO3HdadO8z0wT6nXXINzJfFLkXufNXmxFbHQ8x2VuSGTlIKYhuzla4BlFV+dJJ60/83RRX DKADQ1s4itlnkqEVyeD3cJad734FHh6ZjaqG7sZobZxqcZcGRO7LBBO2SSveqlUZO502Tp9b0MM LHZwjVFPUcDWZpBoJZUTg0Bw5calTX2Mh/Ibwzr1yERYLUO01KqWi2/01IGvu01G3ucNGq0RR2A n7LHuRVOZkJFaBjUx2XPi7bPBYD47fgBMRT5/uIeCM5gh/W/DXFUU+t6j5A6vOE7SF61jWbGrsY wBC3xLx+WDXCvrFhj9xAmV5L+TRjvCEWIsuOy7q88ge/SI7t4d913AWKAEvdvhnhllg+mOSH7Dc BZOo5wTDep2WxoScD9VgeqMv4v8QwkOGCv9H1fDhWZY1fxNCwvpQU9bH111ZD8aSHZPAEHgTdQN eKx6hZNtBFIjq40TAQ5zQnGnAa2NfisLBqVqKAFgaqFahnwB3bRj6EXC4ME4wuCKH1g2O8+xQKY LLKmSqiMsu+UM56ihNwxQ4hVpy5WeDercM0s+Fc2UdFzPNnzrSr1G4BS1YhpzNousCBK7vnlKwX dOZ+YVluePM0Drg== X-Developer-Key: i=bram.vlerick@openpixelsystems.org; a=openpgp; fpr=0EECFB46EDBEFB5CBC6E6B2DB95ABA46BD0506F0 Add devicetree parameter to enable or disable the invert feature of the ili9341 display Signed-off-by: Bram Vlerick --- drivers/staging/fbtft/fb_ili9341.c | 3 +++ drivers/staging/fbtft/fbtft-core.c | 2 ++ drivers/staging/fbtft/fbtft.h | 3 +++ 3 files changed, 8 insertions(+) --- base-commit: 914873bc7df913db988284876c16257e6ab772c6 change-id: 20250528-ili9341-invert-dtb-07a5656e6dfd Best regards, diff --git a/drivers/staging/fbtft/fb_ili9341.c b/drivers/staging/fbtft/fb_ili9341.c index 47e72b87d76d996111aaadcf5e56dfdfc1c331ab..a184f57df12b5ad6612a2e83b664a8911c7c79be 100644 --- a/drivers/staging/fbtft/fb_ili9341.c +++ b/drivers/staging/fbtft/fb_ili9341.c @@ -103,6 +103,9 @@ static int set_var(struct fbtft_par *par) break; } + if (par->invert) + write_reg(par, 0x21); + return 0; } diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c index da9c64152a606dc4a176f5a37fa59f6a7d3a2af3..4e827e9899e32313f2e4a9bf12ff49283a63fed3 100644 --- a/drivers/staging/fbtft/fbtft-core.c +++ b/drivers/staging/fbtft/fbtft-core.c @@ -641,6 +641,7 @@ struct fb_info *fbtft_framebuffer_alloc(struct fbtft_display *display, par->buf = buf; spin_lock_init(&par->dirty_lock); par->bgr = pdata->bgr; + par->invert = pdata->invert; par->startbyte = pdata->startbyte; par->init_sequence = init_sequence; par->gamma.curves = gamma_curves; @@ -1107,6 +1108,7 @@ static struct fbtft_platform_data *fbtft_properties_read(struct device *dev) pdata->display.bpp = fbtft_property_value(dev, "bpp"); pdata->display.debug = fbtft_property_value(dev, "debug"); pdata->rotate = fbtft_property_value(dev, "rotate"); + pdata->invert = device_property_read_bool(dev, "invert"); pdata->bgr = device_property_read_bool(dev, "bgr"); pdata->fps = fbtft_property_value(dev, "fps"); pdata->txbuflen = fbtft_property_value(dev, "txbuflen"); diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h index 317be17b95c1672404fc6aecda24d0a1f563685d..71c9c35e7548de314088ac3aeb160d6c6aaf75c9 100644 --- a/drivers/staging/fbtft/fbtft.h +++ b/drivers/staging/fbtft/fbtft.h @@ -125,6 +125,7 @@ struct fbtft_display { * @display: Display properties * @gpios: Pointer to an array of pinname to gpio mappings * @rotate: Display rotation angle + * @invert: Invert display colors * @bgr: LCD Controller BGR bit * @fps: Frames per second (this will go away, use @fps in @fbtft_display) * @txbuflen: Size of transmit buffer @@ -135,6 +136,7 @@ struct fbtft_display { struct fbtft_platform_data { struct fbtft_display display; unsigned int rotate; + bool invert; bool bgr; unsigned int fps; int txbuflen; @@ -229,6 +231,7 @@ struct fbtft_par { bool first_update_done; ktime_t update_time; bool bgr; + bool invert; void *extra; bool polarity; };