From patchwork Wed Feb 19 08:25:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bough Chen X-Patchwork-Id: 11390725 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E4415138D for ; Wed, 19 Feb 2020 08:31:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C5AE52465D for ; Wed, 19 Feb 2020 08:31:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726202AbgBSIbC (ORCPT ); Wed, 19 Feb 2020 03:31:02 -0500 Received: from inva021.nxp.com ([92.121.34.21]:37550 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725904AbgBSIbC (ORCPT ); Wed, 19 Feb 2020 03:31:02 -0500 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id C56A120054C; Wed, 19 Feb 2020 09:31:00 +0100 (CET) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 9ACFA204763; Wed, 19 Feb 2020 09:30:54 +0100 (CET) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 097C9402AB; Wed, 19 Feb 2020 16:30:46 +0800 (SGT) From: haibo.chen@nxp.com To: adrian.hunter@intel.com, ulf.hansson@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org, s.hauer@pengutronix.de, linux-mmc@vger.kernel.org Cc: kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com, haibo.chen@nxp.com, linus.walleij@linaro.org Subject: [PATCH v4 05/14] doc: dt: fsl-imx-esdhc: add strobe-dll-delay-target binding Date: Wed, 19 Feb 2020 16:25:04 +0800 Message-Id: <1582100704-20601-1-git-send-email-haibo.chen@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org From: Haibo Chen Add fsl,strobe-dll-delay-target binding. Signed-off-by: Haibo Chen --- Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt index 0f97d711444e..de1b8bd550d3 100644 --- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt +++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt @@ -43,6 +43,11 @@ Optional properties: This property allows user to change the tuning step to more than one delay cells which is useful for some special boards or cards when the default tuning step can't find the proper delay window within limited tuning retries. +- fsl,strobe-dll-delay-target: Specify the strobe dll control slave delay target. + This delay target programming host controller loopback read clock, and this + property allows user to change the delay target for the strobe input read clock. + If not use this property, driver default set the delay target to value 7. + Only eMMC HS400 mode need to take care of this property. Examples: