From patchwork Sat Dec 7 13:03:14 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nick Chan X-Patchwork-Id: 848345 Received: from mail-pl1-f178.google.com (mail-pl1-f178.google.com [209.85.214.178]) (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 5487714F9EB; Sat, 7 Dec 2024 13:04:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.178 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733576697; cv=none; b=TmYwZCZs+Uz8xLOJJSmh9zosGCVDepsaMpCDbxCcNhvj+/RA2/ZGm7D1YG4F5P1BESYdAgZ874aX26u3yDKKOWjMiAHnyFfIVXPNsu3J14L3gJWgpkxWQTzjwBjiC2BVGnYcMo75t79Oub5pacQ8Z17YlsYwvnZd54t8Omyp8MI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733576697; c=relaxed/simple; bh=a+ffvi8Pvp87P/1lPCLBagqzbCZkXpLPTrqcZ5m6KYI=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=uk5txY5DBGBShNmkqQMBipEUTh1oAkHQgGAGo2ArNgL7/x3Bv62eYNKfjPrCxc1maW4iEAbulBcHJ1Akoc/0GZmKOicrJ0VKRlGVqVarewKdVWHYfhu96KZEEzc43iEUFTNLAQ2I+P8C/jszNPFJ4oc4s0hvtLUWl7tHIK9LTzc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=mEKlZ67r; arc=none smtp.client-ip=209.85.214.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="mEKlZ67r" Received: by mail-pl1-f178.google.com with SMTP id d9443c01a7336-215c4000c20so30206425ad.3; Sat, 07 Dec 2024 05:04:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1733576696; x=1734181496; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=GI/+h7CCb9MgzwwHAdhpRI41/S9p/ThoHoKHndB4Jrg=; b=mEKlZ67rVyl4WyQgsc+XcXPOZSogLvaY9CaKi+RFYZal57Q5KMZDhZiDxCxAAjOZVU +MGFsxPKvDo3BB3d2FibvBS5Wx+ln8G6oEjAAb6jRlz6kqEwugtIJjV7vNEFhszsoImW UpT+4Zw7PCNmL7/Wp8Fs5BE83xn5RkRo6Ou2rj+YQoAA2uRPiryjv20CgHk8s/8oS/fj iM3NltrexeVIn4nEH8QaKeNVWh2WzHkTNwOEfLOP8vqGgMzoht2bgsCtKp+2d9nJrc/1 /HR1rlT8CbMAJ7OiC/kjE9K4pLvJJ93mYZu1qbGQCGgEaVJfcPscZ+/mMllo2kKe3CrF TqHg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733576696; x=1734181496; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=GI/+h7CCb9MgzwwHAdhpRI41/S9p/ThoHoKHndB4Jrg=; b=OSZU7wiw/uY8yWVV9c3JSm/6ON1+dkDyn7SI8eRg3iP05CeMb9iUnvwFLPWfRQkRht gpUxPiGsJjXvLZqKwYmDfj7qXvq1wKlco2PAWg31x4PkFUYohaVVj022SwybZcYwFhl9 npH1WCpBJttFAHAWhAalrTNcgjto0BJg34DnCNPbRtb2Er7TmpdAS+DyytdcmFb7XW87 XoO+NH1r/a4VZTzucM4KJ7Fl9ro4ugpQguQd7c4FWdprodifMnNFalXBPjVo0sWI4zR4 SQ6PzSSenVrocehEOY5WIxe//VJGFtdrFCEczy4zJNhB7vSMeAeOPeYD1lDi2GwhkBpx 6EsA== X-Forwarded-Encrypted: i=1; AJvYcCViIIjUyX8Mr6Uvx1UAp315M/9zRpVcVNM0DSoH/YwTDHGFzhgU6xm+SFAAMqz+oskyXBy9xMePRNATJaQ=@vger.kernel.org, AJvYcCVs5uwsF/ClRw85yd3sQw7Z+7ENZlzQuJVQEwizNxLiIRM2m/uQL7nYcGgkGg7WSXxbwUFcWDUNYIEB@vger.kernel.org, AJvYcCW4/iao6BM+QM+QL/sUscEN62GBsIWSlmobMMGyBZJfi6QUxgqFLBR332KOq3Xd3LSAa04tSskcD0ehrg==@vger.kernel.org, AJvYcCWEnBrvATl1Pxx2msNmrDPLRHEPvUfSdwNO5nrDydjv17aaAwjkQHxoTyijnHX9ZdqMseDeE9EHdS1zZynx@vger.kernel.org X-Gm-Message-State: AOJu0Yy5R27jN5Tj1y9J8Wr5lyt2GrK+peqLEfY5rnlIzspZROmp1XAw CnbfOUsiUpbBBvtJqFW9bt6RQ3xolkQQH/KvAn2QsCF9VcLxtwqc X-Gm-Gg: ASbGncuZPeHG0wOx8XglUN/Oedaqw8B5ExRpn/7hGdF1XZRE2Vwn2U4FsBHH8TZHG3y 76XhK5drXta3Nkcv6UTXKlj/5D/0gZxjwA6WE05JMvDpA9pki/bVV1MF/F19/I1Hwoq369S/6LQ DmQg8wpGii2ypTIZkFT2xENhWumQh/s+1Lamwgc95imTkCYhyM9cQUKe4VtICVtCj9303K6eanz KrjNLvjOETvERcMiXKPrKR9+tLz7DVEZZkPmZlbaCwZn64zoiVJNiDFJwuJlhII1Q== X-Google-Smtp-Source: AGHT+IHSBn/pq77OCjYDKU4tqjEmdqZd8B5Zl+VAbPbKPPsQr8JFMXWjlUkJ7t8BCQ5XsnHByPmm6Q== X-Received: by 2002:a17:902:c40a:b0:211:ce91:63ea with SMTP id d9443c01a7336-21614d35675mr103444335ad.15.1733576695885; Sat, 07 Dec 2024 05:04:55 -0800 (PST) Received: from localhost.localdomain ([59.188.211.160]) by smtp.googlemail.com with ESMTPSA id d9443c01a7336-21628c59730sm12779715ad.105.2024.12.07.05.04.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 07 Dec 2024 05:04:55 -0800 (PST) From: Nick Chan To: Lee Jones , Daniel Thompson , Jingoo Han , Pavel Machek , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Helge Deller , Hector Martin , Sven Peter , Alyssa Rosenzweig , Nick Chan , dri-devel@lists.freedesktop.org, linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fbdev@vger.kernel.org, asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 1/3] dt-bindings: leds: backlight: apple,dwi-bl: Add bindings for Apple DWI backlight Date: Sat, 7 Dec 2024 21:03:14 +0800 Message-ID: <20241207130433.30351-2-towinchenmi@gmail.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241207130433.30351-1-towinchenmi@gmail.com> References: <20241207130433.30351-1-towinchenmi@gmail.com> Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add the device tree bindings for backlight controllers attached via Apple DWI 2-wire interface. Signed-off-by: Nick Chan --- .../bindings/leds/backlight/apple,dwi-bl.yaml | 54 +++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 Documentation/devicetree/bindings/leds/backlight/apple,dwi-bl.yaml diff --git a/Documentation/devicetree/bindings/leds/backlight/apple,dwi-bl.yaml b/Documentation/devicetree/bindings/leds/backlight/apple,dwi-bl.yaml new file mode 100644 index 000000000000..9d4aa243f679 --- /dev/null +++ b/Documentation/devicetree/bindings/leds/backlight/apple,dwi-bl.yaml @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/leds/backlight/apple,dwi-bl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Apple DWI 2-Wire Interface Backlight Controller + +maintainers: + - Nick Chan + +description: | + Apple SoCs contain a 2-wire interface called DWI. On some Apple iPhones, + iPads and iPod touches with a LCD display, 1-2 backlight controllers + are connected via DWI. Interfacing with DWI controls all backlight + controllers at the same time. As such, the backlight controllers are + treated as a single controller regardless of the underlying + configuration. + +properties: + compatible: + items: + - enum: + - apple,s5l8960x-dwi-bl + - apple,t7000-dwi-bl + - apple,s8000-dwi-bl + - apple,t8010-dwi-bl + - apple,t8015-dwi-bl + - const: apple,dwi-bl + + reg: + maxItems: 1 + + power-domains: + maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + soc { + #address-cells = <2>; + #size-cells = <2>; + + dwi_bl: backlight@20e200010 { + compatible = "apple,s5l8960x-dwi-bl", "apple,dwi-bl"; + reg = <0x2 0x0e200010 0 8>; + power-domains = <&ps_dwi>; + }; + };