From patchwork Thu Feb 25 09:52:16 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne X-Patchwork-Id: 387964 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3E4FCC433E0 for ; Thu, 25 Feb 2021 09:53:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E33C364EF5 for ; Thu, 25 Feb 2021 09:53:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235345AbhBYJxW (ORCPT ); Thu, 25 Feb 2021 04:53:22 -0500 Received: from mx2.suse.de ([195.135.220.15]:39868 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235046AbhBYJxI (ORCPT ); Thu, 25 Feb 2021 04:53:08 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 1E5D2AAAE; Thu, 25 Feb 2021 09:52:27 +0000 (UTC) From: Nicolas Saenz Julienne To: linux-arm-kernel@lists.infradead.org, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org, Adrian Hunter , Ray Jui , Scott Branden Cc: f.fainelli@gmail.com, phil@raspberrypi.com, tim.gover@raspberrypi.com, alcooperx@gmail.com, Nicolas Saenz Julienne , Ulf Hansson , linux-kernel@vger.kernel.org Subject: [RFC 2/2] mmc: sdhci-iproc: Set clock frequency as per DT Date: Thu, 25 Feb 2021 10:52:16 +0100 Message-Id: <20210225095216.28591-3-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210225095216.28591-1-nsaenzjulienne@suse.de> References: <20210225095216.28591-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org devicetree might request a clock frequency different from whatever is set-up by the bootloader. Make sure to setup the new rate. Signed-off-by: Nicolas Saenz Julienne --- drivers/mmc/host/sdhci-iproc.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c index ddeaf8e1f72f..536c382e2486 100644 --- a/drivers/mmc/host/sdhci-iproc.c +++ b/drivers/mmc/host/sdhci-iproc.c @@ -358,6 +358,16 @@ static int sdhci_iproc_probe(struct platform_device *pdev) ret = PTR_ERR(pltfm_host->clk); goto err; } + + if (pltfm_host->clock) { + ret = clk_set_rate(pltfm_host->clk, pltfm_host->clock); + if (ret) { + dev_err(dev, "failed to set host clk at %u Hz\n", + pltfm_host->clock); + goto err; + } + } + ret = clk_prepare_enable(pltfm_host->clk); if (ret) { dev_err(dev, "failed to enable host clk\n");