From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 B73D5C2D0EA for ; Wed, 8 Apr 2020 13:47:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 882122083E for ; Wed, 8 Apr 2020 13:47:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="Y06ssb8q" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729290AbgDHNro (ORCPT ); Wed, 8 Apr 2020 09:47:44 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:54943 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727983AbgDHNrm (ORCPT ); Wed, 8 Apr 2020 09:47:42 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1586353662; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=22ArIKazcYpmZZi/7PHkEImvJYVgzB4jNd5w/bYJj6g=; b=Y06ssb8q8Ic72V33H588aH+cL6ZXDxgaYgSrW3oL1QiSg76+oAInXuv+UXXyTmvOnSZE19cE DRTknp5DyDCZ83vmm72WRb8eQJTzq15LCjGxMmHy2uGLs6p25jnqCHbqbhGC9ZsikpHls6rB k6X3+e6+/6kN5I++eVYxWhO6GK0= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI0MWYwYSIsICJsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5e8dd5fc.7f8fbbcd0730-smtp-out-n05; Wed, 08 Apr 2020 13:47:40 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 59F3BC00448; Wed, 8 Apr 2020 13:47:39 +0000 (UTC) Received: from blr-ubuntu-173.qualcomm.com (blr-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.18.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: rnayak) by smtp.codeaurora.org (Postfix) with ESMTPSA id 2CA77C44798; Wed, 8 Apr 2020 13:47:32 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 2CA77C44798 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=rnayak@codeaurora.org From: Rajendra Nayak To: viresh.kumar@linaro.org, sboyd@kernel.org, bjorn.andersson@linaro.org, agross@kernel.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Rajendra Nayak , Alim Akhtar , Can Guo , Asutosh Das , Subhash Jadavani , linux-scsi@vger.kernel.org Subject: [PATCH 07/21] scsi: ufs: Add support for specifying OPP tables in DT Date: Wed, 8 Apr 2020 19:16:33 +0530 Message-Id: <1586353607-32222-8-git-send-email-rnayak@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1586353607-32222-1-git-send-email-rnayak@codeaurora.org> References: <1586353607-32222-1-git-send-email-rnayak@codeaurora.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some platforms like qualcomms sdm845 SoC have a need to set a performance state of a power domain for UFS along with setting the clock rate. Add support for passing this freq/perf state tuple from DT as an OPP table. Modify the driver to read the OPP table and register with OPP layer. Signed-off-by: Rajendra Nayak Cc: Alim Akhtar Cc: Can Guo Cc: Asutosh Das Cc: Subhash Jadavani Cc: linux-scsi@vger.kernel.org --- drivers/scsi/ufs/ufshcd.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index e04e8b8..172c6fe 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -883,6 +883,16 @@ static int ufshcd_scale_clks(struct ufs_hba *hba, bool scale_up) if (ret) return ret; + if (hba->opp_virt_dev) { + struct dev_pm_opp *opp; + unsigned long freq = scale_up ? INT_MAX : 0; + if (scale_up) + opp = dev_pm_opp_find_freq_floor(hba->dev, &freq); + else + opp = dev_pm_opp_find_freq_ceil(hba->dev, &freq); + dev_pm_opp_set_rate(hba->dev, dev_pm_opp_get_freq(opp)); + } + list_for_each_entry(clki, head, list) { if (!IS_ERR_OR_NULL(clki->clk)) { if (scale_up && clki->max_freq) { @@ -1339,8 +1349,11 @@ static int ufshcd_devfreq_init(struct ufs_hba *hba) return 0; clki = list_first_entry(clk_list, struct ufs_clk_info, list); - dev_pm_opp_add(hba->dev, clki->min_freq, 0); - dev_pm_opp_add(hba->dev, clki->max_freq, 0); + + if (dev_pm_opp_of_add_table(hba->dev)) { + dev_pm_opp_add(hba->dev, clki->min_freq, 0); + dev_pm_opp_add(hba->dev, clki->max_freq, 0); + } ufshcd_vops_config_scaling_param(hba, &ufs_devfreq_profile, gov_data); -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation