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[188.217.54.207]) by smtp.gmail.com with ESMTPSA id e26-20020a05600c4b9a00b003a5537bb2besm13545592wmp.25.2022.10.18.09.45.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Oct 2022 09:45:50 -0700 (PDT) From: Tommaso Merciai To: tommaso.merciai@amarulasolutions.com Cc: michael@amarulasolutions.com, linuxfancy@googlegroups.com, linux-amarula@amarulasolutions.com, kamlesh.gurudasani@gmail.com, David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Maxime Ripard , Thomas Zimmermann , Javier Martinez Canillas , Sam Ravnborg , =?utf-8?q?Noralf_Tr=C3=B8nnes?= , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] dt-bindings: add binding for tft displays based on ilitek, ili9488 Date: Tue, 18 Oct 2022 18:45:25 +0200 Message-Id: <20221018164532.1705215-2-tommaso.merciai@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221018164532.1705215-1-tommaso.merciai@amarulasolutions.com> References: <20221018164532.1705215-1-tommaso.merciai@amarulasolutions.com> MIME-Version: 1.0 X-Original-Sender: tommaso.merciai@amarulasolutions.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=S6dvHcLh; spf=pass (google.com: domain of tommaso.merciai@amarulasolutions.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=tommaso.merciai@amarulasolutions.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com Content-Type: text/plain; charset="UTF-8" Precedence: list Mailing-list: list linux-amarula@amarulasolutions.com; contact linux-amarula+owners@amarulasolutions.com List-ID: X-Spam-Checked-In-Group: linux-amarula@amarulasolutions.com X-Google-Group-Id: 476853432473 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , This binding is for the tft displays based on ilitek,ili9488. waveshare,waveshare,pico-rt-lcd-35 (waveshare pico-restouch-lcd-3.5) Signed-off-by: Tommaso Merciai --- .../bindings/display/ilitek,ili9488.yaml | 72 +++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/ilitek,ili9488.yaml diff --git a/Documentation/devicetree/bindings/display/ilitek,ili9488.yaml b/Documentation/devicetree/bindings/display/ilitek,ili9488.yaml new file mode 100644 index 0000000000000..879ecc42c350c --- /dev/null +++ b/Documentation/devicetree/bindings/display/ilitek,ili9488.yaml @@ -0,0 +1,72 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/ilitek,ili9488.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Ilitek ILI9488 display panels device tree bindings + +maintainers: + - Kamlesh Gurudasani + - Michael Trimarchi + - Tommaso Merciai + +description: + This binding is for display panels using an Ilitek ILI9488 controller in SPI + mode. + +allOf: + - $ref: panel/panel-common.yaml# + +properties: + compatible: + items: + - enum: + # Waveshare 3.5" 320x480 Color TFT LCD + - "waveshare,pico-rt-lcd-35" + - const: ilitek,ili9488 + + spi-max-frequency: + maximum: 20000000 + + dc-gpios: + maxItems: 1 + description: Display data/command selection (D/CX) + + backlight: true + reg: true + reset-gpios: true + rotation: true + +required: + - compatible + - reg + - dc-gpios + - reset-gpios + +additionalProperties: false + +examples: + - | + #include + + backlight: backlight { + compatible = "gpio-backlight"; + gpios = <&gpio 22 GPIO_ACTIVE_HIGH>; + }; + spi { + #address-cells = <1>; + #size-cells = <0>; + + + display@0{ + compatible = "waveshare,pico-rt-lcd-35", "ilitek,ili9488"; + reg = <0>; + spi-max-frequency = <20000000>; + dc-gpios = <&gpio0 24 GPIO_ACTIVE_HIGH>; + reset-gpios = <&gpio0 25 GPIO_ACTIVE_HIGH>; + backlight = <&backlight>; + }; + }; + +... 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[188.217.54.207]) by smtp.gmail.com with ESMTPSA id e26-20020a05600c4b9a00b003a5537bb2besm13545592wmp.25.2022.10.18.09.46.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Oct 2022 09:46:02 -0700 (PDT) From: Tommaso Merciai To: tommaso.merciai@amarulasolutions.com Cc: michael@amarulasolutions.com, linuxfancy@googlegroups.com, linux-amarula@amarulasolutions.com, kamlesh.gurudasani@gmail.com, David Airlie , Daniel Vetter , Maxime Ripard , Thomas Zimmermann , Javier Martinez Canillas , Sam Ravnborg , =?utf-8?q?Noralf_Tr=C3=B8nnes?= , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH 2/2] drm/tiny: add support for tft displays based on ilitek, ili9488 Date: Tue, 18 Oct 2022 18:45:26 +0200 Message-Id: <20221018164532.1705215-3-tommaso.merciai@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221018164532.1705215-1-tommaso.merciai@amarulasolutions.com> References: <20221018164532.1705215-1-tommaso.merciai@amarulasolutions.com> MIME-Version: 1.0 X-Original-Sender: tommaso.merciai@amarulasolutions.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=REoGGe4Z; spf=pass (google.com: domain of tommaso.merciai@amarulasolutions.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=tommaso.merciai@amarulasolutions.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com Content-Type: text/plain; charset="UTF-8" Precedence: list Mailing-list: list linux-amarula@amarulasolutions.com; contact linux-amarula+owners@amarulasolutions.com List-ID: X-Spam-Checked-In-Group: linux-amarula@amarulasolutions.com X-Google-Group-Id: 476853432473 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , This adds support for ilitek,ili9488 based displays with shift register in front of controller. Waveshare,pico-restouch-lcd-3.5 are such displays Signed-off-by: Tommaso Merciai --- drivers/gpu/drm/tiny/Kconfig | 13 + drivers/gpu/drm/tiny/Makefile | 1 + drivers/gpu/drm/tiny/ili9488.c | 440 +++++++++++++++++++++++++++++++++ 3 files changed, 454 insertions(+) create mode 100644 drivers/gpu/drm/tiny/ili9488.c diff --git a/drivers/gpu/drm/tiny/Kconfig b/drivers/gpu/drm/tiny/Kconfig index 027cd87c3d0d7..6e708e8414806 100644 --- a/drivers/gpu/drm/tiny/Kconfig +++ b/drivers/gpu/drm/tiny/Kconfig @@ -148,6 +148,19 @@ config TINYDRM_ILI9486 If M is selected the module will be called ili9486. +config TINYDRM_ILI9488 + tristate "DRM support for ILI9488 display panels" + depends on DRM && SPI + select DRM_KMS_HELPER + select DRM_GEM_CMA_HELPER + select DRM_MIPI_DBI + select BACKLIGHT_CLASS_DEVICE + help + DRM driver for the following Ilitek ILI9488 panels: + * LCD 3.5" 320x480 TFT (Waveshare Pico-ResTouch-LCD-3.5") + + If M is selected the module will be called ili9486. + config TINYDRM_MI0283QT tristate "DRM support for MI0283QT" depends on DRM && SPI diff --git a/drivers/gpu/drm/tiny/Makefile b/drivers/gpu/drm/tiny/Makefile index 1d9d6227e7ab7..aad6683b2ac40 100644 --- a/drivers/gpu/drm/tiny/Makefile +++ b/drivers/gpu/drm/tiny/Makefile @@ -11,6 +11,7 @@ obj-$(CONFIG_TINYDRM_ILI9163) += ili9163.o obj-$(CONFIG_TINYDRM_ILI9225) += ili9225.o obj-$(CONFIG_TINYDRM_ILI9341) += ili9341.o obj-$(CONFIG_TINYDRM_ILI9486) += ili9486.o +obj-$(CONFIG_TINYDRM_ILI9488) += ili9488.o obj-$(CONFIG_TINYDRM_MI0283QT) += mi0283qt.o obj-$(CONFIG_TINYDRM_REPAPER) += repaper.o obj-$(CONFIG_TINYDRM_ST7586) += st7586.o diff --git a/drivers/gpu/drm/tiny/ili9488.c b/drivers/gpu/drm/tiny/ili9488.c new file mode 100644 index 0000000000000..b94d9d4ff4544 --- /dev/null +++ b/drivers/gpu/drm/tiny/ili9488.c @@ -0,0 +1,440 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * DRM driver for Ilitek ILI9488 panels + * + * Copyright 2020 Kamlesh Gurudasani + */ + +#include +#include +#include +#include +#include +#include +#include