From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752164AbcGNI2L (ORCPT ); Thu, 14 Jul 2016 04:28:11 -0400 Received: from lucky1.263xmail.com ([211.157.147.130]:38016 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750975AbcGNI1v (ORCPT ); Thu, 14 Jul 2016 04:27:51 -0400 X-263anti-spam: KSV:0; X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 X-RL-SENDER: shawn.lin@rock-chips.com X-FST-TO: ulf.hansson@linaro.org X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: shawn.lin@rock-chips.com X-UNIQUE-TAG: <8b7490a562bb68500f095002e1be78dc> X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 From: Shawn Lin To: Ulf Hansson Cc: Adrian Hunter , Jaehoon Chung , Rob Herring , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Shawn Lin Subject: [PATCH v2 1/2] Documentation: mmc: add description for new no-sd* and no-mmc Date: Thu, 14 Jul 2016 16:26:03 +0800 Message-Id: <1468484764-32353-1-git-send-email-shawn.lin@rock-chips.com> X-Mailer: git-send-email 1.8.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds description for no-sd, no-sdio, no-mmc. We expose these to DT as some of the controllers are unable to deal with special cmd type due to hw limitation. Signed-off-by: Shawn Lin --- Changes in v2: - amend the description of these properties and the commit msg Documentation/devicetree/bindings/mmc/mmc.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt index ecc007a..22d1e1f 100644 --- a/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/Documentation/devicetree/bindings/mmc/mmc.txt @@ -49,6 +49,9 @@ Optional properties: - mmc-hs400-enhanced-strobe: eMMC HS400 enhanced strobe mode is supported - dsr: Value the card's (optional) Driver Stage Register (DSR) should be programmed with. Valid range: [0 .. 0xffff]. +- no-sdio: controller is limited to send sdio cmd during initialization +- no-sd: controller is limited to send sd cmd during initialization +- no-mmc: controller is limited to send mmc cmd during initialization *NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line polarity properties, we have to fix the meaning of the "normal" and "inverted" -- 2.3.7