From patchwork Mon Nov 21 06:37:17 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ritesh Harjani X-Patchwork-Id: 9438901 X-Patchwork-Delegate: agross@codeaurora.org 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 05B4360235 for ; Mon, 21 Nov 2016 06:38:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EA6BD286FC for ; Mon, 21 Nov 2016 06:38:49 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DD3972899B; Mon, 21 Nov 2016 06:38:49 +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=unavailable 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 917DB286FC for ; Mon, 21 Nov 2016 06:38:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753523AbcKUGis (ORCPT ); Mon, 21 Nov 2016 01:38:48 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:46016 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753239AbcKUGiq (ORCPT ); Mon, 21 Nov 2016 01:38:46 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 6E438614F9; Mon, 21 Nov 2016 06:38:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1479710325; bh=+wE4IDe1Bg3jqpVAonWb9MrePCKbVQ5jSrz0dXYRG1w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FplW3jWN3fR9R5U/Kt2wR/90EiU/JfcuCmOBkOyLFP4vCLbg76w9RGBrZwWDKFJlm 7z8lqjD461HP5hn8z8yM5BJACRi+DwOQ9QZNb181uDso2zT9f2dixJQDx9RUfNJc7r AY7T+KN5tuB5SNXjDpV3E+h8Fua+2IoZryIj6q08= 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 5B8D5614F9; Mon, 21 Nov 2016 06:38:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1479710322; bh=+wE4IDe1Bg3jqpVAonWb9MrePCKbVQ5jSrz0dXYRG1w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=U5I5Yr5FnqhnSab+59uIHOYmTkagcHizYYp+K2QS2b1vad9mnvV4ZuyRc02frOF9c O42j58WZvOl1Qg/CndDep/6WpWMM3nk/g3yGq910BujqmuT/HW6DreO5limCP0paAd XYs/fbkgB2uDDunxLmkL8RrLkae8GR4TO5tdAezg= DMARC-Filter: OpenDMARC Filter v1.3.1 smtp.codeaurora.org 5B8D5614F9 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 v9 07/16] mmc: sdhci-msm: Add get_min_clock() and get_max_clock() callback Date: Mon, 21 Nov 2016 12:07:17 +0530 Message-Id: <1479710246-26676-8-git-send-email-riteshh@codeaurora.org> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1479710246-26676-1-git-send-email-riteshh@codeaurora.org> References: <1479710246-26676-1-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 fc093b8..aaeaf47 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,