From patchwork Mon Nov 24 23:05:36 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 5370761 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id B894FC11AC for ; Mon, 24 Nov 2014 23:05:59 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E3E6020149 for ; Mon, 24 Nov 2014 23:05:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0B2E520154 for ; Mon, 24 Nov 2014 23:05:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751970AbaKXXF4 (ORCPT ); Mon, 24 Nov 2014 18:05:56 -0500 Received: from mail-wg0-f48.google.com ([74.125.82.48]:46668 "EHLO mail-wg0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751260AbaKXXF4 (ORCPT ); Mon, 24 Nov 2014 18:05:56 -0500 Received: by mail-wg0-f48.google.com with SMTP id y19so13524359wgg.21 for ; Mon, 24 Nov 2014 15:05:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=DsKr/DDpj0DpXk82EFOgFdXshL5RjZEGMqeUboYal3c=; b=Rt96juApBSdsJjLzUT8Yg9WqV7TN1tZXqc8I9J+Cx4baZJrjA+oUIa6Ry3BZ1CzIRJ cJA9NGOYg7DZDGqHy38jHnVI9NCL54Y0yQySLh/uScfnUdAcBBsgy2Koqxu3g1++wZGS 3UsrjKyQnpw56BtsYAnNFQLVSxU372Fm6E3iTGqsnDupaE4vO63MN9yJVOYghmHqGODs Vlu8SPj4Uc8fbjLHogZKj8DectBeByGbDhIoqMGUO4WbDDeo9xr94fCJj32e4ndHjf9G pclfM7I0smKbRLikNJHA5/+hiJaVv0LyboqUlgtJgANLnLJ9s3RIcC7NMAZDQe2X3xSp P7bw== X-Received: by 10.180.91.70 with SMTP id cc6mr26763533wib.5.1416870355390; Mon, 24 Nov 2014 15:05:55 -0800 (PST) Received: from fangorn.rup.mentorg.com (nat-min.mentorg.com. [139.181.32.34]) by mx.google.com with ESMTPSA id u5sm326051wiz.9.2014.11.24.15.05.54 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 24 Nov 2014 15:05:54 -0800 (PST) From: Dmitry Eremin-Solenikov To: Russell King , linux-arm-kernel@lists.infradead.org Cc: linux-pcmcia@lists.infradead.org, linux-fbdev@vger.kernel.org Subject: [PATCH V2 6/6] pcmcia: sa1100: make use of device clock Date: Tue, 25 Nov 2014 02:05:36 +0300 Message-Id: <1416870336-30114-7-git-send-email-dbaryshkov@gmail.com> X-Mailer: git-send-email 2.1.3 In-Reply-To: <1416870336-30114-1-git-send-email-dbaryshkov@gmail.com> References: <1416870336-30114-1-git-send-email-dbaryshkov@gmail.com> Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Use per-device clock (instead of calling cpufreq_get(0), which can return 0 if no cpu frequency driver is selected) to program timings. Signed-off-by: Dmitry Eremin-Solenikov --- drivers/pcmcia/sa1100_generic.c | 1 + drivers/pcmcia/sa11xx_base.c | 14 ++++++++++++-- 2 files changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/pcmcia/sa1100_generic.c b/drivers/pcmcia/sa1100_generic.c index ff8a027..d2ab060 100644 --- a/drivers/pcmcia/sa1100_generic.c +++ b/drivers/pcmcia/sa1100_generic.c @@ -93,6 +93,7 @@ static int sa11x0_drv_pcmcia_remove(struct platform_device *dev) for (i = 0; i < sinfo->nskt; i++) soc_pcmcia_remove_one(&sinfo->skt[i]); + clk_put(sinfo->clk); kfree(sinfo); return 0; } diff --git a/drivers/pcmcia/sa11xx_base.c b/drivers/pcmcia/sa11xx_base.c index 54d3089..cf6de2c 100644 --- a/drivers/pcmcia/sa11xx_base.c +++ b/drivers/pcmcia/sa11xx_base.c @@ -135,14 +135,16 @@ sa1100_pcmcia_frequency_change(struct soc_pcmcia_socket *skt, static int sa1100_pcmcia_set_timing(struct soc_pcmcia_socket *skt) { - return sa1100_pcmcia_set_mecr(skt, cpufreq_get(0)); + unsigned long clk = clk_get_rate(skt->clk); + + return sa1100_pcmcia_set_mecr(skt, clk / 1000); } static int sa1100_pcmcia_show_timing(struct soc_pcmcia_socket *skt, char *buf) { struct soc_pcmcia_timing timing; - unsigned int clock = cpufreq_get(0); + unsigned int clock = clk_get_rate(skt->clk); unsigned long mecr = MECR; char *p = buf; @@ -218,6 +220,11 @@ int sa11xx_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops, struct skt_dev_info *sinfo; struct soc_pcmcia_socket *skt; int i, ret = 0; + struct clk *clk; + + clk = clk_get(dev, NULL); + if (IS_ERR(clk)) + return PTR_ERR(clk); sa11xx_drv_pcmcia_ops(ops); @@ -226,12 +233,14 @@ int sa11xx_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops, return -ENOMEM; sinfo->nskt = nr; + sinfo->clk = clk; /* Initialize processor specific parameters */ for (i = 0; i < nr; i++) { skt = &sinfo->skt[i]; skt->nr = first + i; + skt->clk = clk; soc_pcmcia_init_one(skt, ops, dev); ret = sa11xx_drv_pcmcia_add_one(skt); @@ -242,6 +251,7 @@ int sa11xx_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops, if (ret) { while (--i >= 0) soc_pcmcia_remove_one(&sinfo->skt[i]); + clk_put(clk); kfree(sinfo); } else { dev_set_drvdata(dev, sinfo);