From mboxrd@z Thu Jan 1 00:00:00 1970 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753159AbeAKCkl (ORCPT + 1 other); Wed, 10 Jan 2018 21:40:41 -0500 Received: from mail-pf0-f174.google.com ([209.85.192.174]:42815 "EHLO mail-pf0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752762AbeAKCkk (ORCPT ); Wed, 10 Jan 2018 21:40:40 -0500 X-Google-Smtp-Source: ACJfBovHRx5ygPlYr7DUGHa4as70ryHyxBm3zCDsYrg3oqktUYSKqP9aI1cJikmDxpMmsD8duZM7Gg== From: Caesar Wang To: Kishon Vijay Abraham I Cc: Brian Norris , Douglas Anderson , Caesar Wang , linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Heiko Stuebner , linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 0/2] phy: rockchip-emmc: fixes emmc-phy power on failed with rk3399 SoCs Date: Thu, 11 Jan 2018 10:40:25 +0800 Message-Id: <1515638427-15117-1-git-send-email-wxt@rock-chips.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Return-Path: Hi Kishon, Since the Shawn isn't available, I take over this series patches for now. As the original bug had tracked on https://issuetracker.google.com/71561742. In some cases, the mmc phy power on failed during booting up. The log as below: ... [ 2.375333] rockchip_emmc_phy_power: caldone timeout. [ 2.377815] phy phy-ff770000.syscon:phy@f780.4: phy poweron failed --> -110 ... [ 2.489295] mmc0: mmc_select_hs400es failed, error -110 [ 2.489302] mmc0: error -110 whilst initialising MMC card .. The actual emulate, the wait 5us for calpad busy trimming, that's no enough. We need give the enough margin for it. Verified on url = https://chromium.googlesource.com/chromiumos/third_party/kernel/+/chromeos-4.4 This series patches can apply and bring up with kernel-next on rk3399 chromebook. -Caesar Changes in v3: - As Doug commented on both upstream and gerrit. Change "5, 50" to "0, 50", and the message of print. - As Doug commented on https://patchwork.kernel.org/patch/10154797, Change "1, 50" to "0, 50". Changes in v2: - print the return valut with regmap_read_poll_timeout failing. - As Brian commented on https://patchwork.kernel.org/patch/10139891/, changed the note and added to print error value with regmap_read_poll_timeout API. Shawn Lin (2): phy: rockchip-emmc: retry calpad busy trimming phy: rockchip-emmc: use regmap_read_poll_timeout to poll dllrdy drivers/phy/rockchip/phy-rockchip-emmc.c | 60 +++++++++++++++----------------- 1 file changed, 28 insertions(+), 32 deletions(-) -- 2.7.4