From patchwork Mon Dec 20 12:18:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tinghan Shen X-Patchwork-Id: 12696845 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 03353C433F5 for ; Mon, 20 Dec 2021 12:20:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Qxj9m+FHTLY9CWdKeibx/hCYLDAIm9q7cLtbPqbGYdk=; b=uumTHpLseE8cqN HIWkuAT4tUBfiKJG/nH731ogtMJlcxYcrP3/WiVuOOxbtOjk/V6NYBfMMC+lZcnMAIZU6xJsNnhAS p5VEjT17RF7ikxC1JHapCgsA6YpsLS2YNjJUd+TpE9mzBs9l6TUriZBnbTh6A7Im1xcuEG3BCKfz8 05jZijhmod8E6mrlI8H6fDSTqGVsQIO4kNI0k1KCS3xuCgOK42kRRWOyct35TcOZjYqT4eiROGvs0 GqC6ra3vcNkxAP+LnpPWJeNb5NXK258ekWqfFeF3WG5RbSah9L98er4jvecHNVEClalCnrvWDGi2O 3FHPgHldSWqPGWQljkxQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mzHdL-002Dyp-VT; Mon, 20 Dec 2021 12:19:16 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mzHcv-002Dqh-MZ; Mon, 20 Dec 2021 12:18:51 +0000 X-UUID: b60b63aee2c746d59c74f707824129fd-20211220 X-UUID: b60b63aee2c746d59c74f707824129fd-20211220 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1223559623; Mon, 20 Dec 2021 05:18:41 -0700 Received: from mtkmbs10n2.mediatek.inc (172.21.101.183) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 20 Dec 2021 04:18:39 -0800 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Mon, 20 Dec 2021 20:18:37 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 20 Dec 2021 20:18:37 +0800 From: Tinghan Shen To: , , , CC: , , , , , , , , , , , Tinghan Shen Subject: [PATCH v7 3/4] dt-bindings: pinctrl: mt8195: add wrapping node of pin configurations Date: Mon, 20 Dec 2021 20:18:24 +0800 Message-ID: <20211220121825.6446-4-tinghan.shen@mediatek.com> X-Mailer: git-send-email 2.15.GIT In-Reply-To: <20211220121825.6446-1-tinghan.shen@mediatek.com> References: <20211220121825.6446-1-tinghan.shen@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211220_041849_802660_15DC1984 X-CRM114-Status: GOOD ( 13.28 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On mt8195, the pinctrl node has pinctrl groups to group pin configurations by users' need. In each pinctrl group, it has subnode(s) to list pins needed and pin configurations. By supporting multiple subnodes, we can configure different pin characteristics (driving/pull-up/pull-down/etc.) in a pinctrl group. Update pinctrl-mt8195.yaml to add subnode in pinctrl groups and an example to illustrate the usage. Signed-off-by: Tinghan Shen Reviewed-by: Rob Herring Acked-by: AngeloGioacchino Del Regno --- .../bindings/pinctrl/pinctrl-mt8195.yaml | 338 ++++++++++-------- 1 file changed, 188 insertions(+), 150 deletions(-) diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml index 5e2bb2bf3a55..567f71cab7b4 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml @@ -55,137 +55,159 @@ properties: Identifying i2c pins pull up/down type which is RSEL. It can support RSEL define or si unit value(ohm) to set different resistance. -#PIN CONFIGURATION NODES +# PIN CONFIGURATION NODES patternProperties: '-pins$': type: object - description: | - A pinctrl node should contain at least one subnodes representing the - pinctrl groups available on the machine. Each subnode will list the - pins it needs, and how they should be configured, with regard to muxer - configuration, pullups, drive strength, input enable/disable and - input schmitt. - An example of using macro: - pincontroller { - /* GPIO0 set as multifunction GPIO0 */ - gpio_pin { - pinmux = ; - }; - /* GPIO8 set as multifunction SDA0 */ - i2c0_pin { - pinmux = ; - }; - }; - $ref: "pinmux-node.yaml" - - properties: - pinmux: - description: | - Integer array, represents gpio pin number and mux setting. - Supported pin number and mux varies for different SoCs, and are defined - as macros in dt-bindings/pinctrl/-pinfunc.h directly. - - drive-strength: - enum: [2, 4, 6, 8, 10, 12, 14, 16] - - bias-pull-down: - description: | - For pull down type is normal, it don't need add RSEL & R1R0 define - and resistance value. - For pull down type is PUPD/R0/R1 type, it can add R1R0 define to - set different resistance. It can support "MTK_PUPD_SET_R1R0_00" & - "MTK_PUPD_SET_R1R0_01" & "MTK_PUPD_SET_R1R0_10" & "MTK_PUPD_SET_R1R0_11" - define in mt8195. - For pull down type is RSEL, it can add RSEL define & resistance value(ohm) - to set different resistance by identifying property "mediatek,rsel_resistance_in_si_unit". - It can support "MTK_PULL_SET_RSEL_000" & "MTK_PULL_SET_RSEL_001" - & "MTK_PULL_SET_RSEL_010" & "MTK_PULL_SET_RSEL_011" & "MTK_PULL_SET_RSEL_100" - & "MTK_PULL_SET_RSEL_101" & "MTK_PULL_SET_RSEL_110" & "MTK_PULL_SET_RSEL_111" - define in mt8195. It can also support resistance value(ohm) "75000" & "5000" in mt8195. - oneOf: - - enum: [100, 101, 102, 103] - - description: mt8195 pull down PUPD/R0/R1 type define value. - - enum: [200, 201, 202, 203, 204, 205, 206, 207] - - description: mt8195 pull down RSEL type define value. - - enum: [75000, 5000] - - description: mt8195 pull down RSEL type si unit value(ohm). - - An example of using RSEL define: - pincontroller { - i2c0_pin { - pinmux = ; - bias-pull-down = ; - }; - }; - An example of using si unit resistance value(ohm): - &pio { - mediatek,rsel_resistance_in_si_unit; - } - pincontroller { - i2c0_pin { - pinmux = ; - bias-pull-down = <75000>; - }; - }; - - bias-pull-up: + additionalProperties: false + patternProperties: + '^pins': + type: object + additionalProperties: false description: | - For pull up type is normal, it don't need add RSEL & R1R0 define - and resistance value. - For pull up type is PUPD/R0/R1 type, it can add R1R0 define to - set different resistance. It can support "MTK_PUPD_SET_R1R0_00" & - "MTK_PUPD_SET_R1R0_01" & "MTK_PUPD_SET_R1R0_10" & "MTK_PUPD_SET_R1R0_11" - define in mt8195. - For pull up type is RSEL, it can add RSEL define & resistance value(ohm) - to set different resistance by identifying property "mediatek,rsel_resistance_in_si_unit". - It can support "MTK_PULL_SET_RSEL_000" & "MTK_PULL_SET_RSEL_001" - & "MTK_PULL_SET_RSEL_010" & "MTK_PULL_SET_RSEL_011" & "MTK_PULL_SET_RSEL_100" - & "MTK_PULL_SET_RSEL_101" & "MTK_PULL_SET_RSEL_110" & "MTK_PULL_SET_RSEL_111" - define in mt8195. It can also support resistance value(ohm) - "1000" & "1500" & "2000" & "3000" & "4000" & "5000" & "10000" & "75000" in mt8195. - oneOf: - - enum: [100, 101, 102, 103] - - description: mt8195 pull up PUPD/R0/R1 type define value. - - enum: [200, 201, 202, 203, 204, 205, 206, 207] - - description: mt8195 pull up RSEL type define value. - - enum: [1000, 1500, 2000, 3000, 4000, 5000, 10000, 75000] - - description: mt8195 pull up RSEL type si unit value(ohm). - An example of using RSEL define: + A pinctrl node should contain at least one subnodes representing the + pinctrl groups available on the machine. Each subnode will list the + pins it needs, and how they should be configured, with regard to muxer + configuration, pullups, drive strength, input enable/disable and + input schmitt. + An example of using macro: pincontroller { - i2c0_pin { - pinmux = ; - bias-pull-up = ; + /* GPIO0 set as multifunction GPIO0 */ + gpio-pins { + pins { + pinmux = ; + } }; - }; - An example of using si unit resistance value(ohm): - &pio { - mediatek,rsel_resistance_in_si_unit; - } - pincontroller { - i2c0_pin { - pinmux = ; - bias-pull-up = <1000>; + /* GPIO8 set as multifunction SDA0 */ + i2c0-pins { + pins { + pinmux = ; + } }; }; - - bias-disable: true - - output-high: true - - output-low: true - - input-enable: true - - input-disable: true - - input-schmitt-enable: true - - input-schmitt-disable: true - - required: - - pinmux - - additionalProperties: false + $ref: "pinmux-node.yaml" + + properties: + pinmux: + description: | + Integer array, represents gpio pin number and mux setting. + Supported pin number and mux varies for different SoCs, and are + defined as macros in dt-bindings/pinctrl/-pinfunc.h + directly. + + drive-strength: + enum: [2, 4, 6, 8, 10, 12, 14, 16] + + bias-pull-down: + description: | + For pull down type is normal, it don't need add RSEL & R1R0 define + and resistance value. + For pull down type is PUPD/R0/R1 type, it can add R1R0 define to + set different resistance. It can support "MTK_PUPD_SET_R1R0_00" & + "MTK_PUPD_SET_R1R0_01" & "MTK_PUPD_SET_R1R0_10" & + "MTK_PUPD_SET_R1R0_11" define in mt8195. + For pull down type is RSEL, it can add RSEL define & resistance + value(ohm) to set different resistance by identifying property + "mediatek,rsel_resistance_in_si_unit". + It can support "MTK_PULL_SET_RSEL_000" & "MTK_PULL_SET_RSEL_001" + & "MTK_PULL_SET_RSEL_010" & "MTK_PULL_SET_RSEL_011" + & "MTK_PULL_SET_RSEL_100" & "MTK_PULL_SET_RSEL_101" + & "MTK_PULL_SET_RSEL_110" & "MTK_PULL_SET_RSEL_111" + define in mt8195. It can also support resistance value(ohm) + "75000" & "5000" in mt8195. + oneOf: + - enum: [100, 101, 102, 103] + - description: mt8195 pull down PUPD/R0/R1 type define value. + - enum: [200, 201, 202, 203, 204, 205, 206, 207] + - description: mt8195 pull down RSEL type define value. + - enum: [75000, 5000] + - description: mt8195 pull down RSEL type si unit value(ohm). + + An example of using RSEL define: + pincontroller { + i2c0_pin { + pins { + pinmux = ; + bias-pull-down = ; + } + }; + }; + An example of using si unit resistance value(ohm): + &pio { + mediatek,rsel_resistance_in_si_unit; + } + pincontroller { + i2c0_pin { + pins { + pinmux = ; + bias-pull-down = <75000>; + } + }; + }; + + bias-pull-up: + description: | + For pull up type is normal, it don't need add RSEL & R1R0 define + and resistance value. + For pull up type is PUPD/R0/R1 type, it can add R1R0 define to + set different resistance. It can support "MTK_PUPD_SET_R1R0_00" & + "MTK_PUPD_SET_R1R0_01" & "MTK_PUPD_SET_R1R0_10" & + "MTK_PUPD_SET_R1R0_11" define in mt8195. + For pull up type is RSEL, it can add RSEL define & resistance + value(ohm) to set different resistance by identifying property + "mediatek,rsel_resistance_in_si_unit". + It can support "MTK_PULL_SET_RSEL_000" & "MTK_PULL_SET_RSEL_001" + & "MTK_PULL_SET_RSEL_010" & "MTK_PULL_SET_RSEL_011" + & "MTK_PULL_SET_RSEL_100" & "MTK_PULL_SET_RSEL_101" + & "MTK_PULL_SET_RSEL_110" & "MTK_PULL_SET_RSEL_111" + define in mt8195. It can also support resistance value(ohm) + "1000" & "1500" & "2000" & "3000" & "4000" & "5000" & "10000" & + "75000" in mt8195. + oneOf: + - enum: [100, 101, 102, 103] + - description: mt8195 pull up PUPD/R0/R1 type define value. + - enum: [200, 201, 202, 203, 204, 205, 206, 207] + - description: mt8195 pull up RSEL type define value. + - enum: [1000, 1500, 2000, 3000, 4000, 5000, 10000, 75000] + - description: mt8195 pull up RSEL type si unit value(ohm). + An example of using RSEL define: + pincontroller { + i2c0-pins { + pins { + pinmux = ; + bias-pull-up = ; + } + }; + }; + An example of using si unit resistance value(ohm): + &pio { + mediatek,rsel_resistance_in_si_unit; + } + pincontroller { + i2c0-pins { + pins { + pinmux = ; + bias-pull-up = <1000>; + } + }; + }; + + bias-disable: true + + output-high: true + + output-low: true + + input-enable: true + + input-disable: true + + input-schmitt-enable: true + + input-schmitt-disable: true + + required: + - pinmux required: - compatible @@ -201,30 +223,46 @@ additionalProperties: false examples: - | - #include - #include - pio: pinctrl@10005000 { - compatible = "mediatek,mt8195-pinctrl"; - reg = <0x10005000 0x1000>, - <0x11d10000 0x1000>, - <0x11d30000 0x1000>, - <0x11d40000 0x1000>, - <0x11e20000 0x1000>, - <0x11eb0000 0x1000>, - <0x11f40000 0x1000>, - <0x1000b000 0x1000>; - reg-names = "iocfg0", "iocfg_bm", "iocfg_bl", - "iocfg_br", "iocfg_lm", "iocfg_rb", - "iocfg_tl", "eint"; - gpio-controller; - #gpio-cells = <2>; - gpio-ranges = <&pio 0 0 144>; - interrupt-controller; - interrupts = ; - #interrupt-cells = <2>; - - pio-pins { - pinmux = ; - output-low; - }; - }; + #include + #include + # + pio: pinctrl@10005000 { + compatible = "mediatek,mt8195-pinctrl"; + reg = <0x10005000 0x1000>, + <0x11d10000 0x1000>, + <0x11d30000 0x1000>, + <0x11d40000 0x1000>, + <0x11e20000 0x1000>, + <0x11eb0000 0x1000>, + <0x11f40000 0x1000>, + <0x1000b000 0x1000>; + reg-names = "iocfg0", "iocfg_bm", "iocfg_bl", + "iocfg_br", "iocfg_lm", "iocfg_rb", + "iocfg_tl", "eint"; + gpio-controller; + #gpio-cells = <2>; + gpio-ranges = <&pio 0 0 144>; + interrupt-controller; + interrupts = ; + #interrupt-cells = <2>; + + pio-pins { + pins { + pinmux = ; + output-low; + }; + }; + + spi0-pins { + pins-spi { + pinmux = , + , + ; + bias-disable; + }; + pins-spi-mi { + pinmux = ; + bias-pull-down; + }; + }; + };