From patchwork Wed Nov 16 16:00:43 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ritesh Harjani X-Patchwork-Id: 9432021 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 4FC4460469 for ; Wed, 16 Nov 2016 16:02:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3D52727D29 for ; Wed, 16 Nov 2016 16:02:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2F9A928F70; Wed, 16 Nov 2016 16:02:42 +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=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID 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 A568727D29 for ; Wed, 16 Nov 2016 16:02:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753008AbcKPQCj (ORCPT ); Wed, 16 Nov 2016 11:02:39 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:47922 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932388AbcKPQCi (ORCPT ); Wed, 16 Nov 2016 11:02:38 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id C3D7D61562; Wed, 16 Nov 2016 16:02:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1479312157; bh=G7P2Z42WVtRMEM2BCEFrvm9T+nFeVrAhdc+u4ItMgCI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VXsBO6pAA9VEfubTF02lsH2v6qjmAZ4Mr/pKBg66tXDmpMx4s42AmB/+ia56B1PcN 8W+edRw3zEOssnJvrm3TsP2WrarrPXBJfwL/py7QMy9V5YssoWo46IwSxZOiIyBhMD PfPIw95rIsKYiUImaYQ7oFl8gszG5YilL+Si4ZeY= Received: from rharjani-linux.qualcomm.com (unknown [202.46.23.54]) (using TLSv1.1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: riteshh@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id C4A8461562; Wed, 16 Nov 2016 16:02:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1479312155; bh=G7P2Z42WVtRMEM2BCEFrvm9T+nFeVrAhdc+u4ItMgCI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=d9A6aFPAbn/xvDijdHAJobXt7trhsXedvjXVaoc6vcWCFwtesxJz+kpgfs0nCDHsz dpBMjQt0Q70k53xOYwM9uNThEbjWnQ7ZJdWdXLYv6TpJGcQX8hJHf5/vqmDLm7najH OsDhRi6YSsUJXNv8qRkYw9J0pVjl2+IoJ1TqCQl8= DMARC-Filter: OpenDMARC Filter v1.3.1 smtp.codeaurora.org C4A8461562 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=pass smtp.mailfrom=riteshh@codeaurora.org From: Ritesh Harjani To: ulf.hansson@linaro.org, linux-mmc@vger.kernel.org, adrian.hunter@intel.com, sboyd@codeaurora.org, andy.gross@linaro.org Cc: shawn.lin@rock-chips.com, devicetree@vger.kernel.org, linux-clk@vger.kernel.org, david.brown@linaro.org, linux-arm-msm@vger.kernel.org, georgi.djakov@linaro.org, alex.lemberg@sandisk.com, mateusz.nowak@intel.com, Yuliy.Izrailov@sandisk.com, asutoshd@codeaurora.org, david.griego@linaro.org, stummala@codeaurora.org, venkatg@codeaurora.org, rnayak@codeaurora.org, pramod.gurav@linaro.org, jeremymc@redhat.com, Ritesh Harjani Subject: [PATCH v8 07/16] mmc: sdhci-msm: Add get_min_clock() and get_max_clock() callback Date: Wed, 16 Nov 2016 21:30:43 +0530 Message-Id: <1479312052-22396-8-git-send-email-riteshh@codeaurora.org> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1479312052-22396-1-git-send-email-riteshh@codeaurora.org> References: <1479312052-22396-1-git-send-email-riteshh@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This add get_min_clock() and get_max_clock() callback for sdhci-msm. sdhci-msm min/max clocks may be different hence implement these callbacks. Signed-off-by: Sahitya Tummala Signed-off-by: Ritesh Harjani Acked-by: Adrian Hunter --- drivers/mmc/host/sdhci-msm.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c index 7e72105..518021d 100644 --- a/drivers/mmc/host/sdhci-msm.c +++ b/drivers/mmc/host/sdhci-msm.c @@ -68,6 +68,8 @@ #define CORE_VENDOR_SPEC_CAPABILITIES0 0x11c +#define SDHCI_MSM_MIN_CLOCK 400000 + #define CDR_SELEXT_SHIFT 20 #define CDR_SELEXT_MASK (0xf << CDR_SELEXT_SHIFT) #define CMUX_SHIFT_PHASE_SHIFT 24 @@ -556,6 +558,19 @@ static irqreturn_t sdhci_msm_pwr_irq(int irq, void *data) return IRQ_HANDLED; } +static unsigned int sdhci_msm_get_max_clock(struct sdhci_host *host) +{ + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host); + + return clk_round_rate(msm_host->clk, ULONG_MAX); +} + +static unsigned int sdhci_msm_get_min_clock(struct sdhci_host *host) +{ + return SDHCI_MSM_MIN_CLOCK; +} + static const struct of_device_id sdhci_msm_dt_match[] = { { .compatible = "qcom,sdhci-msm-v4" }, {}, @@ -567,6 +582,8 @@ static irqreturn_t sdhci_msm_pwr_irq(int irq, void *data) .platform_execute_tuning = sdhci_msm_execute_tuning, .reset = sdhci_reset, .set_clock = sdhci_set_clock, + .get_min_clock = sdhci_msm_get_min_clock, + .get_max_clock = sdhci_msm_get_max_clock, .set_bus_width = sdhci_set_bus_width, .set_uhs_signaling = sdhci_msm_set_uhs_signaling, .voltage_switch = sdhci_msm_voltage_switch,