From patchwork Mon Aug 29 08:08:25 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chunfeng Yun X-Patchwork-Id: 12957573 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 B23ACECAAD4 for ; Mon, 29 Aug 2022 09:09:22 +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=FtkazWE4jKfsAuwb5+NwO+BUmsLBvn4KwRg190oW9rU=; b=ujuWdbBItF/uFm HC4rXkYZ6vWo1/0kNzkMWhnu3r2LtDlC3nc3Q9wOGeE1VzNknzYNnaj4ngjcnye30cMr9GA7JY/9Q YXY3T6l5YjKXp8xw5Irheqz0JCzqcwHEHTA8Y5bdyEZ8tpA+kERkWzE8pnH1lP8RU0T9yCr1D9+DV 8b78T3sovqt1E8BFEFtxZS2A9gvbLCYgLserY3hEUDYBLX84jofQj/ZffOalDVBfuc9VUzXJY5RuG WL/RP8cE/68IU9eOf6EmCh/ywrXsqFrokD/fAw1oiI2sDxCB9NffZoAmeCpegz5jnmOQaPcQYbDRB hFkNNua6CZ2bjve7lBEw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oSall-006YMM-F1; Mon, 29 Aug 2022 09:09:21 +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 1oSalg-006YHd-0n; Mon, 29 Aug 2022 09:09:17 +0000 X-UUID: abc996a208854ca68cd7f27f33145544-20220829 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:bb1036d5-314d-41a5-b490-ea3598f7c2a9,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:ed7cebcf-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: abc996a208854ca68cd7f27f33145544-20220829 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1211946177; Mon, 29 Aug 2022 02:09:07 -0700 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 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220829_020916_139097_8D83AC8D X-CRM114-Status: UNSURE ( 8.45 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.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 Acked-by: Krzysztof Kozlowski --- 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