From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from bin-mail-out-05.binero.net ([195.74.38.228]:47799 "EHLO bin-mail-out-05.binero.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727979AbeKAIG0 (ORCPT ); Thu, 1 Nov 2018 04:06:26 -0400 From: =?UTF-8?q?Niklas=20S=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=20S=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> In-Reply-To: <20181031230554.1660-1-niklas.soderlund@ragnatech.se> References: <20181031230554.1660-1-niklas.soderlund@ragnatech.se> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-renesas-soc-owner@vger.kernel.org List-ID: 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 --- 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); -- 2.19.1