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[139.181.33.34]) by smtp.gmail.com with ESMTPSA id b14sm30188632wrq.47.2020.11.17.23.36.45 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 17 Nov 2020 23:36:46 -0800 (PST) From: mdurnev@gmail.com X-Google-Original-From: mikhail_durnev@mentor.com To: linux-kernel@vger.kernel.org Subject: [PATCH 2/3] drm/tiny: Add driver for ili9341 with parallel bus Date: Wed, 18 Nov 2020 17:35:44 +1000 Message-Id: <1605684945-29727-3-git-send-email-mikhail_durnev@mentor.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1605684945-29727-1-git-send-email-mikhail_durnev@mentor.com> References: <1605684945-29727-1-git-send-email-mikhail_durnev@mentor.com> MIME-Version: 1.0 X-Mailman-Approved-At: Wed, 18 Nov 2020 08:01:05 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mikhail_durnev@mentor.com, dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Mikhail Durnev MRB2801 display module [1] is an example of ILI9341 display that connects to Intel 8080 parallel bus. Its connector is compatible with the ALIENTEK STM32 development board. It can be used with the drm/mipi-dbi bus driver if the bus is emulated with GPIO. [1] http://www.lcdwiki.com/2.8inch_16BIT_Module_ILI9341_SKU:MRB2801 Signed-off-by: Mikhail Durnev --- drivers/gpu/drm/tiny/Kconfig | 13 ++ drivers/gpu/drm/tiny/Makefile | 1 + drivers/gpu/drm/tiny/ili9341_gpio.c | 290 ++++++++++++++++++++++++++++++++++++ 3 files changed, 304 insertions(+) create mode 100644 drivers/gpu/drm/tiny/ili9341_gpio.c diff --git a/drivers/gpu/drm/tiny/Kconfig b/drivers/gpu/drm/tiny/Kconfig index 2b6414f..e48e268 100644 --- a/drivers/gpu/drm/tiny/Kconfig +++ b/drivers/gpu/drm/tiny/Kconfig @@ -66,6 +66,19 @@ config TINYDRM_ILI9341 If M is selected the module will be called ili9341. +config TINYDRM_ILI9341_GPIO + tristate "DRM support for ILI9341 display panels with parallel bus interface over GPIO" + depends on DRM + select DRM_KMS_HELPER + select DRM_KMS_CMA_HELPER + select DRM_MIPI_DBI + select BACKLIGHT_CLASS_DEVICE + help + DRM driver for the following Ilitek ILI9341 panels: + * MRB2801 2.8" 240x320 TFT + + If M is selected the module will be called ili9341_gpio. + config TINYDRM_ILI9486 tristate "DRM support for ILI9486 display panels" depends on DRM && SPI diff --git a/drivers/gpu/drm/tiny/Makefile b/drivers/gpu/drm/tiny/Makefile index 6ae4e9e5..1ad2c0d 100644 --- a/drivers/gpu/drm/tiny/Makefile +++ b/drivers/gpu/drm/tiny/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_DRM_GM12U320) += gm12u320.o obj-$(CONFIG_TINYDRM_HX8357D) += hx8357d.o obj-$(CONFIG_TINYDRM_ILI9225) += ili9225.o obj-$(CONFIG_TINYDRM_ILI9341) += ili9341.o +obj-$(CONFIG_TINYDRM_ILI9341_GPIO) += ili9341_gpio.o obj-$(CONFIG_TINYDRM_ILI9486) += ili9486.o obj-$(CONFIG_TINYDRM_MI0283QT) += mi0283qt.o obj-$(CONFIG_TINYDRM_REPAPER) += repaper.o diff --git a/drivers/gpu/drm/tiny/ili9341_gpio.c b/drivers/gpu/drm/tiny/ili9341_gpio.c new file mode 100644 index 0000000..de8a63b8 --- /dev/null +++ b/drivers/gpu/drm/tiny/ili9341_gpio.c @@ -0,0 +1,290 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * DRM driver for Ilitek ILI9341 panels with parallel bus interface + * + * Copyright 2020 Mikhail Durnev + * + * Based on ili9341.c: + * Copyright 2018 David Lechner + * + * Based on mi0283qt.c: + * Copyright 2016 Noralf Trønnes + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include