From patchwork Tue Nov 27 11:58:33 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adrian Hunter X-Patchwork-Id: 10700289 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 C6BE613AD for ; Tue, 27 Nov 2018 12:00:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B440E2AF3B for ; Tue, 27 Nov 2018 12:00:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A81302AF46; Tue, 27 Nov 2018 12:00:12 +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=ham 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 593792AF3B for ; Tue, 27 Nov 2018 12:00:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726472AbeK0W5v (ORCPT ); Tue, 27 Nov 2018 17:57:51 -0500 Received: from mga07.intel.com ([134.134.136.100]:9833 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726405AbeK0W5u (ORCPT ); Tue, 27 Nov 2018 17:57:50 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 27 Nov 2018 04:00:09 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,286,1539673200"; d="scan'208";a="114094200" Received: from ahunter-desktop.fi.intel.com ([10.237.72.130]) by fmsmga001.fm.intel.com with ESMTP; 27 Nov 2018 04:00:08 -0800 From: Adrian Hunter To: Ulf Hansson Cc: linux-mmc Subject: [PATCH] mmc: sdhci-pci: Add max-frequency device property for Intel controllers Date: Tue, 27 Nov 2018 13:58:33 +0200 Message-Id: <20181127115833.8498-1-adrian.hunter@intel.com> X-Mailer: git-send-email 2.17.1 Organization: Intel Finland Oy, Registered Address: PL 281, 00181 Helsinki, Business Identity Code: 0357606 - 4, Domiciled in Helsinki 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 Add support for the mmc max-frequency device property for Intel BYT-based host controllers. Signed-off-by: Adrian Hunter --- drivers/mmc/host/sdhci-pci-core.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c index c4115bae5db1..5fe48d0f5c7e 100644 --- a/drivers/mmc/host/sdhci-pci-core.c +++ b/drivers/mmc/host/sdhci-pci-core.c @@ -710,11 +710,15 @@ static int intel_execute_tuning(struct mmc_host *mmc, u32 opcode) static void byt_probe_slot(struct sdhci_pci_slot *slot) { struct mmc_host_ops *ops = &slot->host->mmc_host_ops; + struct device *dev = &slot->chip->pdev->dev; + struct mmc_host *mmc = slot->host->mmc; byt_read_dsm(slot); ops->execute_tuning = intel_execute_tuning; ops->start_signal_voltage_switch = intel_start_signal_voltage_switch; + + device_property_read_u32(dev, "max-frequency", &mmc->f_max); } static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)