From mboxrd@z Thu Jan 1 00:00:00 1970 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 A2E6FECAAD5 for ; Mon, 29 Aug 2022 08:08:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229882AbiH2IIy (ORCPT ); Mon, 29 Aug 2022 04:08:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49946 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229884AbiH2IIo (ORCPT ); Mon, 29 Aug 2022 04:08:44 -0400 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A668C52E45; Mon, 29 Aug 2022 01:08:38 -0700 (PDT) X-UUID: c627c2524a434ebeafca0da406cf19fc-20220829 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=fddcS5Qpd6bb0n2TJsDRcQnWLDAHSEi1n8zkVWqgBTg=; b=BJDhh7ou3r9mEbnlvkRJN80VRyw7JWkY5xP2P0L7mY7yIgu35U/X+9xc2G1iXLktSoDUZdKlh/ChW2uta4ic8vaoIndbP7b2tLIHBDEtwW9DKnR8DlNx836longeM+6gCiwCi4ZXPCDPhadKHa6a8KwKD5KXOIb7+Bi6gg685Mo=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.10,REQID:d34ecc2d-aa17-4e8d-9df8-5bc9fa53d3ad,OB:0,L OB:0,IP:0,URL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_ Ham,ACTION:release,TS:0 X-CID-META: VersionHash:84eae18,CLOUDID:d65be9cf-20bd-4e5e-ace8-00692b7ab380,C OID:IGNORED,Recheck:0,SF:nil,TC:nil,Content:0,EDM:-3,IP:nil,URL:11|1,File: nil,Bulk:nil,QS:nil,BEC:nil,COL:0 X-UUID: c627c2524a434ebeafca0da406cf19fc-20220829 Received: from mtkmbs10n2.mediatek.inc [(172.21.101.183)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1837795596; Mon, 29 Aug 2022 16:08:33 +0800 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Mon, 29 Aug 2022 16:08:32 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 29 Aug 2022 16:08:32 +0800 From: Chunfeng Yun To: Vinod Koul , Rob Herring CC: Chunfeng Yun , Kishon Vijay Abraham I , Krzysztof Kozlowski , Matthias Brugger , , , , , , Krzysztof Kozlowski , Eddie Hung Subject: [PATCH v2 2/7] dt-bindings: phy: mediatek,tphy: add property to set pre-emphasis Date: Mon, 29 Aug 2022 16:08:25 +0800 Message-ID: <20220829080830.5378-2-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220829080830.5378-1-chunfeng.yun@mediatek.com> References: <20220829080830.5378-1-chunfeng.yun@mediatek.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a property to set usb2 phy's pre-emphasis, which used to widen eye opening and boost eye swing. Signed-off-by: Chunfeng Yun --- v2: Add more description suggested by Krzysztof --- .../devicetree/bindings/phy/mediatek,tphy.yaml | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml b/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml index 848edfb1f677..e0754fb44451 100644 --- a/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml +++ b/Documentation/devicetree/bindings/phy/mediatek,tphy.yaml @@ -219,6 +219,16 @@ patternProperties: minimum: 1 maximum: 15 + mediatek,pre-emphasis: + description: + The level of pre-emphasis which used to widen the eye opening and + boost eye swing, the unit step is about 4.16% increment; e.g. the + level 1 means amplitude increases about 4.16%, the level 2 is about + 8.3% etc. (U2 phy) + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 1 + maximum: 3 + mediatek,bc12: description: Specify the flag to enable BC1.2 if support it -- 2.18.0