From patchwork Thu Apr 7 09:47:53 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 559015 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 48EAEC433FE for ; Thu, 7 Apr 2022 09:48:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244007AbiDGJuD (ORCPT ); Thu, 7 Apr 2022 05:50:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51582 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244023AbiDGJuC (ORCPT ); Thu, 7 Apr 2022 05:50:02 -0400 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A7AD61E3E2F; Thu, 7 Apr 2022 02:48:02 -0700 (PDT) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: kholk11) with ESMTPSA id B32251F45DE5 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1649324881; bh=XSzyXGkALxerACJYYB2yjt0W7j5ycyiFDYbsQJ735ew=; h=From:To:Cc:Subject:Date:From; b=mE8LT3p4imnNh/A8NJ5o64WyIINExF1JPvlxYOpJ1kwAn2eTsr/hpeyuXb3wRs8Bp sAyDwEJGmP2db306Xp5XBCwEWFuwN29C6KeufSF8szvj4PfuRfxq7PFFVnihCumM71 DiY3hk3yI4POZaW9durBSoMacUaAIIy7qkefrVcjWtP5fMyKfv/jKLDOFg7SySsi1p 20DaP2vuSs7zYbkHHMnT7d0GR7fCnDb3EpXfJ7Rj0MOowWggM13qpiflNsI3edKQkA VQ2JT8LOAJPk3AtnmJ6qqbUJvJw5dtDVdW2U+B5Mr4E83RVQLlm4l8ClIdTqtu16JV 8CJOTKjDEQf2w== From: AngeloGioacchino Del Regno To: robh+dt@kernel.org Cc: krzk+dt@kernel.org, matthias.bgg@gmail.com, qii.wang@mediatek.com, wsa@kernel.org, kewei.xu@mediatek.com, angelogioacchino.delregno@collabora.com, hsinyi@chromium.org, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, miles.chen@mediatek.com Subject: [PATCH v2] dt-bindings: i2c: convert i2c-mt65xx to json-schema Date: Thu, 7 Apr 2022 11:47:53 +0200 Message-Id: <20220407094753.13282-1-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Convert I2C binding for MediaTek SoCs to Devicetree schema. Signed-off-by: AngeloGioacchino Del Regno --- v2: Changed minItems for clocks, clock-names to 2 (main, dma clks are mandatory) .../devicetree/bindings/i2c/i2c-mt65xx.txt | 53 -------- .../devicetree/bindings/i2c/i2c-mt65xx.yaml | 118 ++++++++++++++++++ MAINTAINERS | 2 +- 3 files changed, 119 insertions(+), 54 deletions(-) delete mode 100644 Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt create mode 100644 Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml diff --git a/Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt b/Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt deleted file mode 100644 index 026985b8f61a..000000000000 --- a/Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt +++ /dev/null @@ -1,53 +0,0 @@ -* MediaTek's I2C controller - -The MediaTek's I2C controller is used to interface with I2C devices. - -Required properties: - - compatible: value should be either of the following. - "mediatek,mt2701-i2c", "mediatek,mt6577-i2c": for MediaTek MT2701 - "mediatek,mt2712-i2c": for MediaTek MT2712 - "mediatek,mt6577-i2c": for MediaTek MT6577 - "mediatek,mt6589-i2c": for MediaTek MT6589 - "mediatek,mt6797-i2c", "mediatek,mt6577-i2c": for MediaTek MT6797 - "mediatek,mt7622-i2c": for MediaTek MT7622 - "mediatek,mt7623-i2c", "mediatek,mt6577-i2c": for MediaTek MT7623 - "mediatek,mt7629-i2c", "mediatek,mt2712-i2c": for MediaTek MT7629 - "mediatek,mt8168-i2c": for MediaTek MT8168 - "mediatek,mt8173-i2c": for MediaTek MT8173 - "mediatek,mt8183-i2c": for MediaTek MT8183 - "mediatek,mt8186-i2c": for MediaTek MT8186 - "mediatek,mt8192-i2c": for MediaTek MT8192 - "mediatek,mt8195-i2c", "mediatek,mt8192-i2c": for MediaTek MT8195 - "mediatek,mt8516-i2c", "mediatek,mt2712-i2c": for MediaTek MT8516 - - reg: physical base address of the controller and dma base, length of memory - mapped region. - - interrupts: interrupt number to the cpu. - - clock-div: the fixed value for frequency divider of clock source in i2c - module. Each IC may be different. - - clocks: clock name from clock manager - - clock-names: Must include "main" and "dma", "arb" is for multi-master that - one bus has more than two i2c controllers, if enable have-pmic need include - "pmic" extra. - -Optional properties: - - clock-frequency: Frequency in Hz of the bus when transfer, the default value - is 100000. - - mediatek,have-pmic: platform can control i2c form special pmic side. - Only mt6589 and mt8135 support this feature. - - mediatek,use-push-pull: IO config use push-pull mode. - - vbus-supply: phandle to the regulator that provides power to SCL/SDA. - -Example: - - i2c0: i2c@1100d000 { - compatible = "mediatek,mt6577-i2c"; - reg = <0x1100d000 0x70>, - <0x11000300 0x80>; - interrupts = ; - clock-frequency = <400000>; - mediatek,have-pmic; - clock-div = <16>; - clocks = <&i2c0_ck>, <&ap_dma_ck>; - clock-names = "main", "dma"; - }; - diff --git a/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml b/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml new file mode 100644 index 000000000000..16a1a3118204 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml @@ -0,0 +1,118 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/i2c-mt65xx.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek I2C controller + +description: + This driver interfaces with the native I2C controller present in + various MediaTek SoCs. + +allOf: + - $ref: /schemas/i2c/i2c-controller.yaml# + +maintainers: + - Qii Wang + +properties: + compatible: + oneOf: + - const: mediatek,mt2712-i2c + - const: mediatek,mt6577-i2c + - const: mediatek,mt6589-i2c + - const: mediatek,mt7622-i2c + - const: mediatek,mt8168-i2c + - const: mediatek,mt8173-i2c + - const: mediatek,mt8183-i2c + - const: mediatek,mt8186-i2c + - const: mediatek,mt8192-i2c + - items: + - enum: + - mediatek,mt7629-i2c + - mediatek,mt8516-i2c + - const: mediatek,mt2712-i2c + - items: + - enum: + - mediatek,mt2701-i2c + - mediatek,mt6797-i2c + - mediatek,mt7623-i2c + - const: mediatek,mt6577-i2c + - items: + - enum: + - mediatek,mt8195-i2c + - const: mediatek,mt8192-i2c + + reg: + items: + - description: Physical base address + - description: DMA base address + + interrupts: + maxItems: 1 + + clocks: + minItems: 2 + items: + - description: Main clock for I2C bus + - description: Clock for I2C via DMA + - description: Bus arbitrator clock + - description: Clock for I2C from PMIC + + clock-names: + minItems: 2 + items: + - const: main + - const: dma + - const: arb + - const: pmic + + clock-div: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Frequency divider of clock source in I2C module + + clock-frequency: + default: 100000 + description: + SCL frequency to use (in Hz). If omitted, 100kHz is used. + + mediatek,have-pmic: + description: Platform controls I2C from PMIC side + type: boolean + + mediatek,use-push-pull: + description: Use push-pull mode I/O config + type: boolean + + vbus-supply: + description: Phandle to the regulator providing power to SCL/SDA + +required: + - compatible + - reg + - clocks + - clock-names + - clock-div + - interrupts + +unevaluatedProperties: false + +examples: + - | + #include + #include + + i2c0: i2c@1100d000 { + compatible = "mediatek,mt6577-i2c"; + reg = <0x1100d000 0x70>, <0x11000300 0x80>; + interrupts = ; + clocks = <&i2c0_ck>, <&ap_dma_ck>; + clock-names = "main", "dma"; + clock-div = <16>; + clock-frequency = <400000>; + mediatek,have-pmic; + + #address-cells = <1>; + #size-cells = <0>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index ee0b5a70aff1..28a17d4c8d12 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12361,7 +12361,7 @@ MEDIATEK I2C CONTROLLER DRIVER M: Qii Wang L: linux-i2c@vger.kernel.org S: Maintained -F: Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt +F: Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml F: drivers/i2c/busses/i2c-mt65xx.c MEDIATEK IOMMU DRIVER