From patchwork Wed Oct 31 23:05:52 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Niklas_S=C3=B6derlund?= X-Patchwork-Id: 10663375 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BD94913A4 for ; Wed, 31 Oct 2018 23:52:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A87CB2BA01 for ; Wed, 31 Oct 2018 23:52:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9C8F22BB82; Wed, 31 Oct 2018 23:52:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 59BB02BA01 for ; Wed, 31 Oct 2018 23:52:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728205AbeKAIw3 (ORCPT ); Thu, 1 Nov 2018 04:52:29 -0400 Received: from vsp-unauthed02.binero.net ([195.74.38.227]:58082 "EHLO vsp-unauthed02.binero.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727784AbeKAIG0 (ORCPT ); Thu, 1 Nov 2018 04:06:26 -0400 X-Halon-ID: 8fcd0a8c-dd61-11e8-911a-0050569116f7 Authorized-sender: niklas@soderlund.pp.se Received: from bismarck.berto.se (unknown [89.233.230.99]) by bin-vsp-out-03.atm.binero.net (Halon) with ESMTPA id 8fcd0a8c-dd61-11e8-911a-0050569116f7; Thu, 01 Nov 2018 00:06:13 +0100 (CET) From: =?utf-8?q?Niklas_S=C3=B6derlund?= To: Wolfram Sang , Masahiro Yamada , Ulf Hansson , linux-mmc@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, =?utf-8?q?Niklas_S=C3=B6derlund?= Subject: [PATCH v3 1/3] mmc: tmio: enable module clock before resetting when resuming Date: Thu, 1 Nov 2018 00:05:52 +0100 Message-Id: <20181031230554.1660-2-niklas.soderlund@ragnatech.se> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181031230554.1660-1-niklas.soderlund@ragnatech.se> References: <20181031230554.1660-1-niklas.soderlund@ragnatech.se> MIME-Version: 1.0 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Niklas Söderlund On runtime power management resume, the host clock needs to be enabled before calling tmio_mmc_reset. If the mmc device has a power domain entry, the host clock is enabled via genpd_runtime_resume, running before tmio_mmc_host_runtime_resume. If the mmc device has no power domain entry, however, genpd_runtime_resume is not called. This patch changes tmio_mmc_host_runtime_resume to enable the host clock before calling tmio_mmc_reset. Based on work from Masaharu Hayakawa. Signed-off-by: Niklas Söderlund Reviewed-by: Wolfram Sang Reviewed-by: Masahiro Yamada Reviewed-by: Simon Horman --- drivers/mmc/host/tmio_mmc_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c index 8d64f6196f33e882..953562a12a0d6ebc 100644 --- a/drivers/mmc/host/tmio_mmc_core.c +++ b/drivers/mmc/host/tmio_mmc_core.c @@ -1328,8 +1328,8 @@ int tmio_mmc_host_runtime_resume(struct device *dev) { struct tmio_mmc_host *host = dev_get_drvdata(dev); - host->reset(host); tmio_mmc_clk_enable(host); + host->reset(host); if (host->clk_cache) host->set_clock(host, host->clk_cache);