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Fri, 10 Oct 2025 02:38:06 -0700 (PDT) From: Langyan Ye To: neil.armstrong@linaro.org, jessica.zhang@oss.qualcomm.com, airlied@gmail.com, simona@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, dianders@chromium.org Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Langyan Ye Subject: [PATCH v2 1/2] dt-bindings: display: panel: Add Tianma TL121BVMS07-00 panel Date: Fri, 10 Oct 2025 17:37:50 +0800 Message-Id: <20251010093751.2793492-2-yelangyan@huaqin.corp-partner.google.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251010093751.2793492-1-yelangyan@huaqin.corp-partner.google.com> References: <20251010093751.2793492-1-yelangyan@huaqin.corp-partner.google.com> 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 device tree bindings for the Tianma TL121BVMS07-00 12.1-inch MIPI-DSI TFT LCD panel. The panel is based on the Ilitek IL79900A controller. Signed-off-by: Langyan Ye --- .../display/panel/ilitek,il79900a.yaml | 64 +++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/ilitek,= il79900a.yaml diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,il79900= a.yaml b/Documentation/devicetree/bindings/display/panel/ilitek,il79900a.ya= ml new file mode 100644 index 000000000000..a723f179efdf --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/ilitek,il79900a.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/panel/ilitek,il79900a.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Ilitek IL79900a based MIPI-DSI panels + +maintainers: + - Langyan Ye + +allOf: + - $ref: panel-common.yaml# + +properties: + compatible: + items: + - enum: + - tianma,il79900a + - const: ilitek,il79900a + + reg: true + + enable-gpios: + maxItems: 1 + description: GPIO specifier for the enable pin + + avdd-supply: + description: Positive analog voltage supply (AVDD) + + avee-supply: + description: Negative analog voltage supply (AVEE) + + pp1800-supply: + description: 1.8V logic voltage supply + +required: + - compatible + - reg + - enable-gpios + - avdd-supply + - avee-supply + - pp1800-supply + +additionalProperties: false + +examples: + - | + dsi { + #address-cells =3D <1>; + #size-cells =3D <0>; + + panel@0 { + compatible =3D "tianma,il79900a", "ilitek,il79900a"; + reg =3D <0>; + enable-gpios =3D <&pio 25 0>; + avdd-supply =3D <®_avdd>; + avee-supply =3D <®_avee>; + pp1800-supply =3D <®_pp1800>; + backlight =3D <&backlight>; + }; + }; + +... --=20 2.34.1 From nobody Fri Jun 19 22:20:32 2026 Received: from mail-pj1-f65.google.com (mail-pj1-f65.google.com [209.85.216.65]) (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 22F332773FC for ; Fri, 10 Oct 2025 09:38:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.65 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760089095; cv=none; b=pMmvtc9Qp+QOx7OcBcSLOqKrgIeBemVyMWPOweM8qf9MtEHTltvep3QNi9pl1qTTSpHffslHhO/d67lmzHHJ7Tfb9I5Lh0m2sBw++2YZC1JoGSyXgRMLaB8DQRcvaWP0Ky+D6vhuL73HbThtCh+n2E9NXmk0zblCgKsq5jyyudA= ARC-Message-Signature: i=1; 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Fri, 10 Oct 2025 02:38:10 -0700 (PDT) Received: from dgp100339560-01.huaqin.com ([103.117.77.121]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-33b61a392cdsm2668196a91.7.2025.10.10.02.38.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Oct 2025 02:38:10 -0700 (PDT) From: Langyan Ye To: neil.armstrong@linaro.org, jessica.zhang@oss.qualcomm.com, airlied@gmail.com, simona@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, dianders@chromium.org Cc: dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Langyan Ye Subject: [PATCH v2 2/2] drm/panel: Add driver for Ilitek IL79900A-based panels Date: Fri, 10 Oct 2025 17:37:51 +0800 Message-Id: <20251010093751.2793492-3-yelangyan@huaqin.corp-partner.google.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20251010093751.2793492-1-yelangyan@huaqin.corp-partner.google.com> References: <20251010093751.2793492-1-yelangyan@huaqin.corp-partner.google.com> 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 a DRM panel driver for the Ilitek IL79900A MIPI-DSI LCD controller. The controller is used in panels such as the Tianma TL121BVMS07-00. It requires multiple power supplies (AVDD, AVEE, 1.8V logic), an enable GPIO, and a backlight device. Signed-off-by: Langyan Ye --- drivers/gpu/drm/panel/panel-ilitek-il79900a.c | 394 ++++++++++++++++++ 1 file changed, 394 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-ilitek-il79900a.c diff --git a/drivers/gpu/drm/panel/panel-ilitek-il79900a.c b/drivers/gpu/dr= m/panel/panel-ilitek-il79900a.c new file mode 100644 index 000000000000..2134f8af673e --- /dev/null +++ b/drivers/gpu/drm/panel/panel-ilitek-il79900a.c @@ -0,0 +1,394 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Panels based on the Ilitek IL79900A display controller. + */ +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include