From nobody Mon Jun 8 13:29:43 2026 Received: from mail-pj1-f44.google.com (mail-pj1-f44.google.com [209.85.216.44]) (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 895DF3A718D for ; Fri, 29 May 2026 06:28:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.44 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780036123; cv=none; b=RCWj3PwCDW3wkYhWdcrQd7mytyVuIT2BgXKR66i/NBVKaP1koRS10xRuoh5JqQUbQ6hart/MFppirQaoSkPvjcmXWZFgX6A/uktnmQL40xiFA6KVJhT1vRJjcJ/6/mwlH4d6ryMRtkTa9VVT4MzmpQtIRi+3ALRUJ4lc4Cp2dis= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780036123; c=relaxed/simple; bh=RUZnKY6xu4XwYRbNJvw8NSe02bg60PLa087+CBdhzxc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KMbGBt9mskgFfVe/I1oqI+lwXGkHDgRA8dteLSKFUeDesfR2Yzz2iwvfDr1jlOIa5YN1eLD609Swcx2nGF0m2jQbohwi9uAU9zF9bPSfw84RslronLKpwquvEd8CLTh2IS41BBLJW2vcxizn7eQSiCPWsfrQ93ZgGL4L2Lwi+ps= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=reznichenko.net; spf=none smtp.mailfrom=dpplabs.com; dkim=pass (2048-bit key) header.d=reznichenko.net header.i=@reznichenko.net header.b=lpBmUqEo; arc=none smtp.client-ip=209.85.216.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=reznichenko.net Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=dpplabs.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=reznichenko.net header.i=@reznichenko.net header.b="lpBmUqEo" Received: by mail-pj1-f44.google.com with SMTP id 98e67ed59e1d1-36a8ee1e28cso5792829a91.0 for ; Thu, 28 May 2026 23:28:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=reznichenko.net; s=google; t=1780036122; x=1780640922; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=U1BXKQ5cO0sS+w6dWfKU1RmTE2+q5/z7tw+KfuVhcBA=; b=lpBmUqEotsre7mFuvHqHBbW7HbMa+62ji3W7XhCfrPP7TDBvnPHAVAms8L+h+ryMNw WJDCuge4BCk0Y3+vo1sqqy/dG+PEU3vFnpzTn38tOUl4NHzDsiKVpytRXwu5nmyedCbe LPw7+hirJ3LrlnPvA+8xxm+k9wQaNLZS+TD8u6SV+hTyMhBv8l/AnNm24ymdu7DxYWgz m0H1SnktaHCRh4f/rUU2gjqOjHOY18gk1iHPA1rJ4+IJtHmxQM7X4BL0XyAKS/0/EPBs fIZ4CxBfG4Uo0hgF7wAZ5nSiTsD1ieUAPXgTzyDURiJlWarlRIEh/Q4SOXmFFyNN2Emh GZcA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780036122; x=1780640922; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=U1BXKQ5cO0sS+w6dWfKU1RmTE2+q5/z7tw+KfuVhcBA=; b=LTcgoIFmWGxeJJdSqA5i7ZTxKCz2Pg6O0aiXLvjeS+ANwT5rAutqjBXCnHjw3UZVSZ XZ49z0eoZfsuNoPqp+6WyEsIWbpzymFM1hyWxjuQbbNZcy/1MkTA5ycJ5pO5LC6zckTu O1Po7KUo1eaGfZ5mqmhJclVhMa0tpc2A8CG4VhO2GpnxAtLrgO3ckkTkdcvzkJTUjAW/ xs+5dbLkvoNsD4dK1xBi/ZHPPFvY55YXbwfPszFJRyNmvv0ZtlqBVKgd+TuGBdl0y6KU Ki7lxvVDIuWtKDX6D6z2YqxH4AkBVjUXpKIf9JxIZNREQodVSnx/Q/k8HfnURj0UBgEG dz8w== X-Forwarded-Encrypted: i=1; AFNElJ/YeEkIrSoZAkQV50AA8KUJxfbcVOcOsEwoSJBx5yYkUyOYrkPpeBS3og9yeksAj5WaExwhmGD8LrhTjmA=@vger.kernel.org X-Gm-Message-State: AOJu0YyIv0uzucrSCfn5sBGqYcHU9swXRiIT7flbebSp0Q7gArIXubbN n6yx32bXe3RjVia10TfeQrNd/RD/m/IM96OOUAnLV93plOP63sqMHjWMvTvXMiqfHVA= X-Gm-Gg: Acq92OGMEhvO0l9A7ijOmsUoA4nri8tQslb6mawGjuvQgUzMpJRZyTcq9YBnVMzZs4B lE6JD8ed0SKyRmP1qZPCKgXZjbQ5a8f5e85VRxOdZGUpjG77MZmlSKGHrhsld4FpKnejxQxD+9j kWtSX4/jDDvB4q79zUHNzcAxVyhiMwwoN5er7f9kbN+3JBhjb3VCpFk9GSVnTUxDiJ+fBX6G9Gu lj4Nm8uIbLf4ETGeWz4kngQiMx2ou+JCrXUAIc70IMOlRkRhhs3pvUtTWWvUFRDQJpEpes2+GCB 7X2q2FduJkO4yRkETyT0ujbK1IRdvSgNf9K2oNw0VdXh1QPY7hjRJne0aXpyKDTgD6WgDm+W1K/ XxjJCa4nC79nspKjFjuc8QI3v16onyW4KqaGeFB/OznSYE5eMjfuUJl/QqpgdlQ0u4V/1AdCFsn BulV5/4pYM5XFY4yHQNYiDEqJUUg== X-Received: by 2002:a17:90b:1dca:b0:368:a297:bd38 with SMTP id 98e67ed59e1d1-36bbcd626b1mr2097204a91.7.1780036121753; Thu, 28 May 2026 23:28:41 -0700 (PDT) Received: from z440.. ([24.21.231.36]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-36bc6a340b7sm717087a91.11.2026.05.28.23.28.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 May 2026 23:28:41 -0700 (PDT) From: Igor Reznichenko To: Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Lad Prabhakar , Manivannan Sadhasivam , "Kael D'Alcamo" , Kever Yang Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Conor Dooley Subject: [PATCH v5 1/2] dt-bindings: display: panel: Add Ilitek ILI9488 panel controller Date: Thu, 28 May 2026 23:28:35 -0700 Message-ID: <20260529062836.203990-2-igor@reznichenko.net> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260529062836.203990-1-igor@reznichenko.net> References: <20260529062836.203990-1-igor@reznichenko.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add binding for the Ilitek ILI9488 panel controller which is found on the FocusLCDs E35GH-I-MW800-CB MIPI DSI panel. Add "focuslcds" to vendor-prefixes.yaml as it's a brandname and a website (https://focuslcds.com/) for Focus Display Solutions, Inc. Reviewed-by: Conor Dooley Signed-off-by: Igor Reznichenko --- .../display/panel/ilitek,ili9488.yaml | 63 +++++++++++++++++++ .../devicetree/bindings/vendor-prefixes.yaml | 2 + 2 files changed, 65 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/ilitek,= ili9488.yaml diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,ili9488= .yaml b/Documentation/devicetree/bindings/display/panel/ilitek,ili9488.yaml new file mode 100644 index 000000000000..ea7449273022 --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili9488.yaml @@ -0,0 +1,63 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/panel/ilitek,ili9488.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Ilitek ILI9488 based MIPI-DSI panels + +maintainers: + - Igor Reznichenko + +allOf: + - $ref: panel-common.yaml# + +properties: + compatible: + items: + - enum: + - focuslcds,e35gh-i-mw800cb + - const: ilitek,ili9488 + + reg: + maxItems: 1 + + vci-supply: true + iovcc-supply: true + +required: + - compatible + - reg + - vci-supply + - iovcc-supply + - reset-gpios + - backlight + - port + +unevaluatedProperties: false + +examples: + - | + #include + + dsi { + #address-cells =3D <1>; + #size-cells =3D <0>; + + panel@0 { + compatible =3D "focuslcds,e35gh-i-mw800cb", "ilitek,ili9488"; + reg =3D <0>; + vci-supply =3D <®_vci_panel>; + iovcc-supply =3D <®_iovcc_panel>; + reset-gpios =3D <&gpio3 6 GPIO_ACTIVE_LOW>; + backlight =3D <&pwm_bl>; + + port { + panel_in: endpoint { + remote-endpoint =3D <&dsi_out>; + }; + }; + }; + }; + +... diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Docum= entation/devicetree/bindings/vendor-prefixes.yaml index 11c55b5df0e4..ce195c72db6b 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml @@ -602,6 +602,8 @@ patternProperties: description: Flipkart Inc. "^focaltech,.*": description: FocalTech Systems Co.,Ltd + "^focuslcds,.*": + description: Focus Display Solutions, Inc. "^forlinx,.*": description: Baoding Forlinx Embedded Technology Co., Ltd. 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([24.21.231.36]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-36bc6a340b7sm717087a91.11.2026.05.28.23.28.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 May 2026 23:28:42 -0700 (PDT) From: Igor Reznichenko To: Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Lad Prabhakar , Manivannan Sadhasivam , "Kael D'Alcamo" , Kever Yang Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v5 2/2] drm/panel: Add Ilitek ILI9488 controller driver Date: Thu, 28 May 2026 23:28:36 -0700 Message-ID: <20260529062836.203990-3-igor@reznichenko.net> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260529062836.203990-1-igor@reznichenko.net> References: <20260529062836.203990-1-igor@reznichenko.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add support for Ilitek ILI9488 DSI controller which is used in FocusLCDs E35GH-I-MW800-CB 320x480 MIPI DSI panel. The mode timing was adjusted after STM32MP157 testing. The previous 14.256 MHz mode worked on AM62P, but was awkward for STM32 DSI/LTDC clock synthesis. Signed-off-by: Igor Reznichenko --- MAINTAINERS | 6 + drivers/gpu/drm/panel/Kconfig | 9 + drivers/gpu/drm/panel/Makefile | 1 + drivers/gpu/drm/panel/panel-ilitek-ili9488.c | 289 +++++++++++++++++++ 4 files changed, 305 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-ilitek-ili9488.c diff --git a/MAINTAINERS b/MAINTAINERS index ac87c217ab1f..987635948cde 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8040,6 +8040,12 @@ T: git https://gitlab.freedesktop.org/drm/misc/kerne= l.git F: Documentation/devicetree/bindings/display/ilitek,ili9486.yaml F: drivers/gpu/drm/tiny/ili9486.c =20 +DRM DRIVER FOR ILITEK ILI9488 PANELS +M: Igor Reznichenko +S: Maintained +F: Documentation/devicetree/bindings/display/panel/ilitek,ili9488.yaml +F: drivers/gpu/drm/panel/panel-ilitek-ili9488.c + DRM DRIVER FOR ILITEK ILI9805 PANELS M: Michael Trimarchi S: Maintained diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 7450b27622a2..37987e47f3f7 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -284,6 +284,15 @@ config DRM_PANEL_ILITEK_ILI9341 QVGA (240x320) RGB panels. support serial & parallel rgb interface. =20 +config DRM_PANEL_ILITEK_ILI9488 + tristate "Ilitek ILI9488-based panels" + depends on OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + help + Say Y if you want to enable support for panels based on the + Ilitek ILI9488 controller. + config DRM_PANEL_ILITEK_ILI9805 tristate "Ilitek ILI9805-based panels" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index c2c5cf817116..a1344a0a3fd0 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -28,6 +28,7 @@ obj-$(CONFIG_DRM_PANEL_HIMAX_HX8394) +=3D panel-himax-hx8= 394.o obj-$(CONFIG_DRM_PANEL_HYDIS_HV101HD1) +=3D panel-hydis-hv101hd1.o obj-$(CONFIG_DRM_PANEL_ILITEK_IL9322) +=3D panel-ilitek-ili9322.o obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9341) +=3D panel-ilitek-ili9341.o +obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9488) +=3D panel-ilitek-ili9488.o obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9805) +=3D panel-ilitek-ili9805.o obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9806E_CORE) +=3D panel-ilitek-ili9806e-co= re.o obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9806E_DSI) +=3D panel-ilitek-ili9806e-dsi= .o diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9488.c b/drivers/gpu/drm= /panel/panel-ilitek-ili9488.c new file mode 100644 index 000000000000..7302766034fc --- /dev/null +++ b/drivers/gpu/drm/panel/panel-ilitek-ili9488.c @@ -0,0 +1,289 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include +#include +#include +#include + +#include