From patchwork Wed Sep 8 01:32:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?V2VuYmluIE1laSAo5qKF5paH5b2sKQ==?= X-Patchwork-Id: 12479679 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=-16.8 required=3.0 tests=BAYES_00, 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 49B65C433FE for ; Wed, 8 Sep 2021 01:32:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2D0EC61139 for ; Wed, 8 Sep 2021 01:32:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346139AbhIHBdc (ORCPT ); Tue, 7 Sep 2021 21:33:32 -0400 Received: from mailgw01.mediatek.com ([60.244.123.138]:57774 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S240146AbhIHBdb (ORCPT ); Tue, 7 Sep 2021 21:33:31 -0400 X-UUID: acf7b676283a46b79032318a80f272ac-20210908 X-UUID: acf7b676283a46b79032318a80f272ac-20210908 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1653715880; Wed, 08 Sep 2021 09:32:22 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 8 Sep 2021 09:32:20 +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; Wed, 8 Sep 2021 09:32:19 +0800 From: Wenbin Mei To: Ulf Hansson , Rob Herring , Matthias Brugger CC: Chaotian Jing , Avri Altman , Wenbin Mei , Wolfram Sang , Yoshihiro Shimoda , Linus Walleij , Yue Hu , Bean Huo , Adrian Hunter , , , , , , Rob Herring Subject: [PATCH v3 1/2] dt-bindings: mmc: mtk-sd: add hs400 dly3 setting Date: Wed, 8 Sep 2021 09:32:17 +0800 Message-ID: <20210908013218.29702-2-wenbin.mei@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210908013218.29702-1-wenbin.mei@mediatek.com> References: <20210908013218.29702-1-wenbin.mei@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Add hs400 dly3 setting for mtk-sd yaml Signed-off-by: Wenbin Mei Acked-by: Rob Herring Reviewed-by: Linus Walleij --- Documentation/devicetree/bindings/mmc/mtk-sd.yaml | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml index e866e985549e..82768a807294 100644 --- a/Documentation/devicetree/bindings/mmc/mtk-sd.yaml +++ b/Documentation/devicetree/bindings/mmc/mtk-sd.yaml @@ -119,6 +119,18 @@ properties: If present, HS400 command responses are sampled on rising edges. If not present, HS400 command responses are sampled on falling edges. + mediatek,hs400-ds-dly3: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Gear of the third delay line for DS for input data latch in data + pad macro, there are 32 stages from 0 to 31. + For different corner IC, the time is different about one step, it is + about 100ps. + The value is confirmed by doing scan and calibration to find a best + value with corner IC and it is valid only for HS400 mode. + minimum: 0 + maximum: 31 + mediatek,latch-ck: $ref: /schemas/types.yaml#/definitions/uint32 description: