From patchwork Fri Sep 24 08:06:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "zhiyong.tao" X-Patchwork-Id: 12514389 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7D4A9C433EF for ; Fri, 24 Sep 2021 08:19:41 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 4706A61090 for ; Fri, 24 Sep 2021 08:19:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 4706A61090 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org 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=c1vzqgJXXsJnG8piik+FASrASq9Ct08QfrfdbtKvKnA=; b=XVG9pTfDXOhzCZ JWuJGIFJn+2cgNbyCrVzAya3ye3Io/J3p8uwJjRA77zp55A+sOW25UA/ZRWpoEgzBNWt+hHpjAbD4 TTaWt0xqN2nfN1Sh/ybjkCYTxypnoPMuOxGPX5bcfR5KLAtNkQ+NEN/L2w3W1jica4CA0yfrs3Tv5 b0y1JX5wBaPHEU+ndhjfIB9pUl2mHfS8JOaa0WNGZBPicMvAe07HdS0TRCxdVb8IPYnCyd6h+tz1n KiLZZe7F20MmZwFrzXNhh9lk5i6LlsOBjL4/jjOiAzo3A2lpk6ikSwt0lC9c9X96ngoiQTd00gATp qFdTAUqdO0e+0rIO24Uw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mTgOR-00DTYp-KM; Fri, 24 Sep 2021 08:17:15 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mTgNz-00DTRz-OD; Fri, 24 Sep 2021 08:16:49 +0000 X-UUID: 987b5b6c34984a2082b4c80bc4ace4f1-20210924 X-UUID: 987b5b6c34984a2082b4c80bc4ace4f1-20210924 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 91071344; Fri, 24 Sep 2021 01:16:43 -0700 Received: from mtkmbs07n1.mediatek.inc (172.21.101.16) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 24 Sep 2021 01:06:47 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 24 Sep 2021 16:06:46 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 24 Sep 2021 16:06:45 +0800 From: Zhiyong Tao To: , , , , CC: , , , , , , , , , , , , Subject: [PATCH v14 2/5] dt-bindings: pinctrl: mt8195: change pull up/down description Date: Fri, 24 Sep 2021 16:06:29 +0800 Message-ID: <20210924080632.28410-3-zhiyong.tao@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210924080632.28410-1-zhiyong.tao@mediatek.com> References: <20210924080632.28410-1-zhiyong.tao@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-20210924_011647_825566_9885EC95 X-CRM114-Status: GOOD ( 11.31 ) 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 For supporting SI units in "bias-pull-down" & "bias-pull-up", change pull up/down description and add "mediatek,rsel_resistance_in_si_unit" description. Signed-off-by: Zhiyong Tao --- .../bindings/pinctrl/pinctrl-mt8195.yaml | 86 ++++++++++++++++++- 1 file changed, 84 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml index 2f12ec59eee5..5f642bef72af 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt8195.yaml @@ -49,6 +49,12 @@ properties: description: The interrupt outputs to sysirq. maxItems: 1 + mediatek,rsel_resistance_in_si_unit: + type: boolean + description: | + 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 patternProperties: '-pins$': @@ -85,9 +91,85 @@ patternProperties: 2/4/6/8/10/12/14/16mA in mt8195. enum: [0, 1, 2, 3, 4, 5, 6, 7] - bias-pull-down: true + 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: true + 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_pin { + pinmux = ; + bias-pull-up = ; + }; + }; + An example of using si unit resistance value(ohm): + &pio { + mediatek,rsel_resistance_in_si_unit; + } + pincontroller { + i2c0_pin { + pinmux = ; + bias-pull-up = <1000>; + }; + }; bias-disable: true