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[83.233.6.197]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-30f031bcd37sm19252841fa.76.2025.04.08.00.04.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Apr 2025 00:04:58 -0700 (PDT) From: Marcus Folkesson Date: Tue, 08 Apr 2025 09:04:28 +0200 Subject: [PATCH v3 1/3] dt-bindings: display: Add Sitronix ST7571 LCD Controller MIME-Version: 1.0 Message-Id: <20250408-st7571-v3-1-200693efec57@gmail.com> References: <20250408-st7571-v3-0-200693efec57@gmail.com> In-Reply-To: <20250408-st7571-v3-0-200693efec57@gmail.com> To: David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Marcus Folkesson X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2216; i=marcus.folkesson@gmail.com; h=from:subject:message-id; bh=8jsXPoD8/rVl7BQngK3NPkNA5m5l8CicRc1UHvgLl8Q=; b=owEBbQKS/ZANAwAIAYiATm9ZXVIyAcsmYgBn9MqI/6MAlJHkJFAGEAFtgGr3nulYXwgfcprBv UZsVFY9NFaJAjMEAAEIAB0WIQQFUaLotmy1TWTBLGWIgE5vWV1SMgUCZ/TKiAAKCRCIgE5vWV1S MuTCEADWG6b4liMCpVeV5PsvAuNakNCEUFL7uQEazaVoNugFyqXWyvXpsEaWhruzGt7WV0ik7EH RcrJiptSDU/0QE7mLKYw7lMdPHGOQBE0P4ARo6gEY1CUPMnTE0RUENvzoA0JQkWbtjPyXiPRHt3 X40P2JJoe7Yqvom4D6S5PFv2Q+BlR5fna45TO/cP4xy/d0PiKsqJLR4/3GZrDwBW0Z6SRXxac5T zdv4f2uc3owp2vIR0tQp2RnpihkmimfOttg4cC4BrTF9tCJirmTLZQt/Whi6yFgu5aONwC5wYMh KMRx0NehGGZusaalAwHkWbRkyhAVG3zioY7Pt35q3h3x3M4FmvPKujMAK4jueJRMZRLu2LK4FSU FfqzraJSyzchYX4Kh/kNFJDLTOlzPXYdU7lQDfTbqKzrqwOeYpNPOHPrjY6FrwGSmdd5iHi5bSX NHuSgrXNLTV+nFyJ8e49V53t7rYtSc8E5l0sG3ViKDulywob/jMfLuCcVdS6Vos+Oc44rXSoFox tom9zRA5iinjgmOXzRuaioYKjvsFykGc+L+JX7Y/rvqHMH3ocQg1WsU1oMfMf5eacGP/9w6AdXS KJXW/KCEaAmIXYKWSACTNvraVPZiehCXs7/USjKmGRPmrOLU2FIwHZpFpV1R1bJPzj5xI2pPDbg WfXOjyIQdnlXLew== X-Developer-Key: i=marcus.folkesson@gmail.com; a=openpgp; fpr=AB91D46C7E0F6E6FB2AB640EC0FE25D598F6C127 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Sitronix ST7571 is a 4bit gray scale dot matrix LCD controller. Signed-off-by: Marcus Folkesson Reviewed-by: Conor Dooley --- .../bindings/display/sitronix,st7571.yaml | 70 ++++++++++++++++++++++ 1 file changed, 70 insertions(+) diff --git a/Documentation/devicetree/bindings/display/sitronix,st7571.yaml b/Documentation/devicetree/bindings/display/sitronix,st7571.yaml new file mode 100644 index 0000000000000000000000000000000000000000..a25d2820be27fe580b6d1aaddd9c610383b73b3a --- /dev/null +++ b/Documentation/devicetree/bindings/display/sitronix,st7571.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/sitronix,st7571.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Sitronix ST7571 Display Controller + +maintainers: + - Marcus Folkesson + +description: + Sitronix ST7571 is a driver and controller for up to 4-level gray + scale dot matrix LCD panels. + The controller is designed for use with LCD panels that have + a resolution of up to 128x128 pixels. + +allOf: + - $ref: panel/panel-common.yaml# + +properties: + compatible: + const: sitronix,st7571 + + reg: + maxItems: 1 + + reset-gpios: true + width-mm: true + height-mm: true + panel-timing: true + +required: + - compatible + - reg + - reset-gpios + - width-mm + - height-mm + - panel-timing + +additionalProperties: false + +examples: + - | + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + display@3f { + compatible = "sitronix,st7571"; + reg = <0x3f>; + reset-gpios = <&gpio0 3 GPIO_ACTIVE_LOW>; + width-mm = <37>; + height-mm = <27>; + + panel-timing { + hactive = <128>; + vactive = <96>; + hback-porch = <0>; + vback-porch = <0>; + clock-frequency = <0>; + hfront-porch = <0>; + hsync-len = <0>; + vfront-porch = <0>; + vsync-len = <0>; + }; + }; + }; From patchwork Tue Apr 8 07:04:29 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcus Folkesson X-Patchwork-Id: 14042262 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 93E03C369A5 for ; Tue, 8 Apr 2025 07:05:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DA28F10E5DE; 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[83.233.6.197]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-30f031bcd37sm19252841fa.76.2025.04.08.00.04.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Apr 2025 00:04:59 -0700 (PDT) From: Marcus Folkesson Date: Tue, 08 Apr 2025 09:04:29 +0200 Subject: [PATCH v3 2/3] drm/st7571-i2c: add support for Sitronix ST7571 LCD controller MIME-Version: 1.0 Message-Id: <20250408-st7571-v3-2-200693efec57@gmail.com> References: <20250408-st7571-v3-0-200693efec57@gmail.com> In-Reply-To: <20250408-st7571-v3-0-200693efec57@gmail.com> To: David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Marcus Folkesson , Thomas Zimmermann X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=22658; i=marcus.folkesson@gmail.com; h=from:subject:message-id; bh=q3vQmRD71z5LNRq8vYV6y9F9l4Bw2jdb5Gyyipq/WT0=; b=owEBbQKS/ZANAwAIAYiATm9ZXVIyAcsmYgBn9MqNN6OCi4DLqWsyzYm5IyDQjS+Sz/3UMZ7kj EgEfQuxie2JAjMEAAEIAB0WIQQFUaLotmy1TWTBLGWIgE5vWV1SMgUCZ/TKjQAKCRCIgE5vWV1S Mn+nEACMPrE4BGca4Njz3dywzy4nCHYCqCew5Z90CVwkYQh6z7FGfitrq2OYgjlYzKKcBOPZy9V p5K9WBepY7GiT6fodGd4lDzm5euceFcTxb7b/746tdv3KTXBrF4LsHqsMv1hoJ+9zBQgjU7NAFe dQ69SU926UC6kHLIFNcMErLm2Pyf7XHbCfrwI+0KbOIDH8DdJsBshEYJc6zKmvvZGjMIPaIyvA0 JRFrwdFJiOTENjXHjgdcqZOJogfgpcI3QgLvONWQ5/e3lX4fC00VVlB6eDZEz6LsZyz09IMaU1r FJZtmWL1zjyVHg2jjbNsx0HefU55CIvZCrGyu9p513PNGBbjddj28U8OGRi2OmkWQGHLIrLPq9l t8BdmWhcQOE2NNovEDDgv7wN/tqDyvsta2m7Dw+HnNSZCpmRLAI30Lnqv3+PC48xOzU07dzW5ms fyCawoSNIGrx+2EnT5xDNVLPIJrKKTyhY9F4IHnrtfHyHAbfaKNq1zZ80TGI4Upxh1VmQIw6l+1 kbZe+WZPERClqChFQ/Gsstol2eZj0OVjREOXnOH0pQZALvlcIuh5el9OXeG+exYKTDQoLwCrrWg 1lhfD/lJAN5T0uvPDoAnMUN4FKY7S8AzPNj2wx7xQPmXFsWZJv7snm/FTNw+I38AAKEUNsmkBk8 Y/eSQAA5PXqLf8Q== X-Developer-Key: i=marcus.folkesson@gmail.com; a=openpgp; fpr=AB91D46C7E0F6E6FB2AB640EC0FE25D598F6C127 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Sitronix ST7571 is a 4bit gray scale dot matrix LCD controller. The controller has a SPI, I2C and 8bit parallel interface, this driver is for the I2C interface only. Reviewed-by: Thomas Zimmermann Signed-off-by: Marcus Folkesson --- drivers/gpu/drm/tiny/Kconfig | 11 + drivers/gpu/drm/tiny/Makefile | 1 + drivers/gpu/drm/tiny/st7571-i2c.c | 721 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 733 insertions(+) diff --git a/drivers/gpu/drm/tiny/Kconfig b/drivers/gpu/drm/tiny/Kconfig index 94cbdb1337c07f1628a33599a7130369b9d59d98..33a69aea4232c5ca7a04b1fe18bb424e0fded697 100644 --- a/drivers/gpu/drm/tiny/Kconfig +++ b/drivers/gpu/drm/tiny/Kconfig @@ -232,6 +232,17 @@ config TINYDRM_ST7586 If M is selected the module will be called st7586. +config DRM_ST7571_I2C + tristate "DRM support for Sitronix ST7571 display panels (I2C)" + depends on DRM && I2C + select DRM_GEM_SHMEM_HELPER + select DRM_KMS_HELPER + select REGMAP_I2C + help + DRM driver for Sitronix ST7571 panels controlled over I2C. + + if M is selected the module will be called st7571-i2c. + config TINYDRM_ST7735R tristate "DRM support for Sitronix ST7715R/ST7735R display panels" depends on DRM && SPI diff --git a/drivers/gpu/drm/tiny/Makefile b/drivers/gpu/drm/tiny/Makefile index 60816d2eb4ff93b87228ed8eadd60a0a33a1144b..eab7568c92c880cfdf7c2f0b9c4bfac4685dbe95 100644 --- a/drivers/gpu/drm/tiny/Makefile +++ b/drivers/gpu/drm/tiny/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_DRM_GM12U320) += gm12u320.o obj-$(CONFIG_DRM_OFDRM) += ofdrm.o obj-$(CONFIG_DRM_PANEL_MIPI_DBI) += panel-mipi-dbi.o obj-$(CONFIG_DRM_SIMPLEDRM) += simpledrm.o +obj-$(CONFIG_DRM_ST7571_I2C) += st7571-i2c.o obj-$(CONFIG_TINYDRM_HX8357D) += hx8357d.o obj-$(CONFIG_TINYDRM_ILI9163) += ili9163.o obj-$(CONFIG_TINYDRM_ILI9225) += ili9225.o diff --git a/drivers/gpu/drm/tiny/st7571-i2c.c b/drivers/gpu/drm/tiny/st7571-i2c.c new file mode 100644 index 0000000000000000000000000000000000000000..9c54ac02f712b8c44ef21878edbf9569a6992915 --- /dev/null +++ b/drivers/gpu/drm/tiny/st7571-i2c.c @@ -0,0 +1,721 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for Sitronix ST7571, a 4 level gray scale dot matrix LCD controller + * + * Copyright (C) 2025 Marcus Folkesson + */ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include