Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932621AbbGTOV6 (ORCPT ); Mon, 20 Jul 2015 10:21:58 -0400 Received: from mail-qk0-f181.google.com ([209.85.220.181]:33297 "EHLO mail-qk0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932593AbbGTOVx (ORCPT ); Mon, 20 Jul 2015 10:21:53 -0400 MIME-Version: 1.0 In-Reply-To: <1436183618-15330-1-git-send-email-ivan.ivanov@linaro.org> References: <1436183618-15330-1-git-send-email-ivan.ivanov@linaro.org> Date: Mon, 20 Jul 2015 16:21:52 +0200 Message-ID: Subject: Re: [PATCH v2] mmc: sdhci-msm: Boost controller core clock From: Ulf Hansson To: "Ivan T. Ivanov" Cc: Georgi Djakov , Stephen Boyd , Peter Griffin , linux-mmc , "linux-kernel@vger.kernel.org" , "linux-arm-msm@vger.kernel.org" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1428 Lines: 45 On 6 July 2015 at 13:53, Ivan T. Ivanov wrote: > Ensure SDCC is working with maximum clock otherwise card > detection could be extremely slow, up to 7 seconds. > > Signed-off-by: Ivan T. Ivanov > Reviewed-by: Georgi Djakov > Acked-by: Stephen Boyd Thanks, applied! Kind regards Uffe > --- > > Changes since v0: > - s/falied/failed in warning message. > > drivers/mmc/host/sdhci-msm.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c > index 4a09f76..4bcee03 100644 > --- a/drivers/mmc/host/sdhci-msm.c > +++ b/drivers/mmc/host/sdhci-msm.c > @@ -489,6 +489,11 @@ static int sdhci_msm_probe(struct platform_device *pdev) > goto pclk_disable; > } > > + /* Vote for maximum clock rate for maximum performance */ > + ret = clk_set_rate(msm_host->clk, INT_MAX); > + if (ret) > + dev_warn(&pdev->dev, "core clock boost failed\n"); > + > ret = clk_prepare_enable(msm_host->clk); > if (ret) > goto pclk_disable; > -- > 1.9.1 > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/