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[83.233.6.197]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-54d6e524645sm1428793e87.41.2025.04.23.00.13.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Apr 2025 00:14:00 -0700 (PDT) From: Marcus Folkesson Date: Wed, 23 Apr 2025 09:13:33 +0200 Subject: [PATCH v5 1/3] dt-bindings: display: Add Sitronix ST7571 LCD Controller Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250423-st7571-v5-1-a283b752ad39@gmail.com> References: <20250423-st7571-v5-0-a283b752ad39@gmail.com> In-Reply-To: <20250423-st7571-v5-0-a283b752ad39@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 , Conor Dooley , Javier Martinez Canillas , Krzysztof Kozlowski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2443; i=marcus.folkesson@gmail.com; h=from:subject:message-id; bh=YB3U1vGWiGbGv/SZx3xK3oLfCX1vsYzknR/aXytg8xc=; b=owEBbQKS/ZANAwAIAYiATm9ZXVIyAcsmYgBoCJMnpPP5Uv6KlMXzj7js3h5xWuDgruYzpR5Sd WzqEPK5ggKJAjMEAAEIAB0WIQQFUaLotmy1TWTBLGWIgE5vWV1SMgUCaAiTJwAKCRCIgE5vWV1S MpSwD/4j7O0k2Ad7fUd2A/3jFfXd8tieImPyatFp/ocYrhFuwHgCNlFMNNBSdvXohr0zsC3nPYL 7z/Uk+rymGBQSd1HEnR+7rvK5A5mWEw428SZa8BHkVPW8HKL+N3pSjcsOdA/l/+Uug8FuMKi1iK puCQ5veEdSvMaC6DAEf+jy0M4OVdsnxq6HezsvCoW8gxR3Bulw6+6NDykonYt9FPU4NlRBxYYGC iN47n5dG0VoDyJ0B8+31vg0ffnyRmVRYt/FbEWOqAQiSPCvxKsonsNYbUmjVBKlR0Nj+86EQ3K+ aoTQAwBIEaDTitJAYHsn+7KgWoAWhl0MVgT0N41pUaf+CReNuR3hbtzd0xSrECdbjroQQ0Iq61T hGTbQhwaHqeuo8x6cURqFPqmqS9mUOA1RAVihCALkUoW2kBG7tsfKDrWTV4zFhL9soCYgE8cAGP JWJ5wA4+ancz+jU+DrviMEJaSEbVSmgjESQ96YEJpP6Vn4qRsrFiXuw1h2EWs8n2ZHI1QWBKPGo q7mSH7NDV9/wtlAC7VEBdUgx3kUquZcT0jxXenZMuJc9rJdWNukKhZCllPiMaaTJBj+Ty7fgUIa Mqp4BSkGWi78eqU67xsfuokWdnA4AZb8VFFgimDCOjt+zJpoo04heFW2Sswmofaf/ajNEy5vZA0 YyHHDD3DeckjZug== X-Developer-Key: i=marcus.folkesson@gmail.com; a=openpgp; fpr=AB91D46C7E0F6E6FB2AB640EC0FE25D598F6C127 Sitronix ST7571 is a dot matrix LCD controller supporting both 4bit grayscale and monochrome LCDs. Reviewed-by: Conor Dooley Reviewed-by: Javier Martinez Canillas Reviewed-by: Krzysztof Kozlowski Signed-off-by: Marcus Folkesson --- .../bindings/display/sitronix,st7571.yaml | 73 ++++++++++++++++++= ++++ 1 file changed, 73 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..4fea782fccd701f5095a08290c1= 3722a12a58b52 --- /dev/null +++ b/Documentation/devicetree/bindings/display/sitronix,st7571.yaml @@ -0,0 +1,73 @@ +# 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 4-level gray + scale and monochrome dot matrix LCD panels. + +allOf: + - $ref: panel/panel-common.yaml# + +properties: + compatible: + const: sitronix,st7571 + + reg: + maxItems: 1 + + sitronix,grayscale: + type: boolean + description: + Display supports 4-level grayscale. + + 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 =3D <1>; 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[83.233.6.197]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-54d6e524645sm1428793e87.41.2025.04.23.00.14.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Apr 2025 00:14:01 -0700 (PDT) From: Marcus Folkesson Date: Wed, 23 Apr 2025 09:13:34 +0200 Subject: [PATCH v5 2/3] drm/st7571-i2c: add support for Sitronix ST7571 LCD controller Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250423-st7571-v5-2-a283b752ad39@gmail.com> References: <20250423-st7571-v5-0-a283b752ad39@gmail.com> In-Reply-To: <20250423-st7571-v5-0-a283b752ad39@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 , Javier Martinez Canillas X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=32395; i=marcus.folkesson@gmail.com; h=from:subject:message-id; bh=mPaxqxMfXu2jds9nxm8nPXmpGmw1deHYcqq7wlxh/1o=; b=owEBbQKS/ZANAwAIAYiATm9ZXVIyAcsmYgBoCJMsQYPkUxsRTQTLasOrZroGaEeh2pKjMg/FO pxEpJxU1pCJAjMEAAEIAB0WIQQFUaLotmy1TWTBLGWIgE5vWV1SMgUCaAiTLAAKCRCIgE5vWV1S MsWuD/wP1/haD54GJ/WyGBj4ZQn4CM55TeY6s9USrW0dEoWVsjKz+ZoWeIhc2Mihv+g+0ZHcRGK 4MxIUqWRnb8xE9YBAVD/C+TGrpK9thgDpAQWRwKF1X9/UsxyUY8G1re48g4EF35WsbC6xQPHtbp GjiXuw5gXITfaApPq4sEsi3FA0D1gdK8dxNgQLIRfddatdBvcne+dTRVTtW1e+3vX5XsQzeFwRd eKRM4UU5czv9CqE1wC8hjnEkA9OnMhH66cfuGzQmIgn2wpevFoL8XW9ngigMnijNnHLZZq/EAj4 SFZb9//Tux49s/Pd6cUoeD1+p9mvftm06u4nHSzzJMrDpRz2J9qfe+eZuvLznuw7o6dKgclVkl/ 4C+3E0A1UGXjZSaSCs4tvf3VwG/SizJ2TGVBCF2mHkeRhO3zMAIj7Lv6QVpQVQCoJVPor2yHRKe lRE/Gn1u9zEvkNwc9KNRfO/Uribiv9t1oTQ2TI9BLvpw8AUAkMrUgTZ9emN45ulnHHzkAhRM/4b vVSH4vIA86I8Ff51zw6nInjStngvvC86yhaHC2r40URR11mStY1y2Rms7qII6vyPhMNABiTu8eJ rT+5P2839igBpdu5R3kcFreiQ4/0q/hi53aNS4iMBmYIB9yMWGI5Xd79QHBeMnFiVOLKYKBnYeV 5WYUj5Zr8n3myow== X-Developer-Key: i=marcus.folkesson@gmail.com; a=openpgp; fpr=AB91D46C7E0F6E6FB2AB640EC0FE25D598F6C127 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 Reviewed-by: Javier Martinez Canillas Signed-off-by: Marcus Folkesson --- drivers/gpu/drm/tiny/Kconfig | 11 + drivers/gpu/drm/tiny/Makefile | 1 + drivers/gpu/drm/tiny/st7571-i2c.c | 1007 +++++++++++++++++++++++++++++++++= ++++ 3 files changed, 1019 insertions(+) diff --git a/drivers/gpu/drm/tiny/Kconfig b/drivers/gpu/drm/tiny/Kconfig index 94cbdb1337c07f1628a33599a7130369b9d59d98..e4a55482e3bcd3f6851df1d322a= 14cbe1f96adfb 100644 --- a/drivers/gpu/drm/tiny/Kconfig +++ b/drivers/gpu/drm/tiny/Kconfig @@ -232,6 +232,17 @@ config TINYDRM_ST7586 =20 If M is selected the module will be called st7586. =20 +config DRM_ST7571_I2C + tristate "DRM support for Sitronix ST7571 display panels (I2C)" + depends on DRM && I2C && MMU + 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..eab7568c92c880cfdf7c2f0b9c4= bfac4685dbe95 100644 --- a/drivers/gpu/drm/tiny/Makefile +++ b/drivers/gpu/drm/tiny/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_DRM_GM12U320) +=3D gm12u320.o obj-$(CONFIG_DRM_OFDRM) +=3D ofdrm.o obj-$(CONFIG_DRM_PANEL_MIPI_DBI) +=3D panel-mipi-dbi.o obj-$(CONFIG_DRM_SIMPLEDRM) +=3D simpledrm.o +obj-$(CONFIG_DRM_ST7571_I2C) +=3D st7571-i2c.o obj-$(CONFIG_TINYDRM_HX8357D) +=3D hx8357d.o obj-$(CONFIG_TINYDRM_ILI9163) +=3D ili9163.o obj-$(CONFIG_TINYDRM_ILI9225) +=3D ili9225.o diff --git a/drivers/gpu/drm/tiny/st7571-i2c.c b/drivers/gpu/drm/tiny/st757= 1-i2c.c new file mode 100644 index 0000000000000000000000000000000000000000..a5b7d2068e3e14030116b1f4af1= 7c716ac02869d --- /dev/null +++ b/drivers/gpu/drm/tiny/st7571-i2c.c @@ -0,0 +1,1007 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for Sitronix ST7571, a 4 level gray scale dot matrix LCD control= ler + * + * 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 + +#include