From patchwork Fri Jun 5 09:30:26 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pradeep P V K X-Patchwork-Id: 210873 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=-6.5 required=3.0 tests=CHARSET_FARAWAY_HEADER, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 C73A6C433E0 for ; Fri, 5 Jun 2020 09:31:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B1168207D3 for ; Fri, 5 Jun 2020 09:31:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726532AbgFEJb3 (ORCPT ); Fri, 5 Jun 2020 05:31:29 -0400 Received: from alexa-out-blr-01.qualcomm.com ([103.229.18.197]:26201 "EHLO alexa-out-blr-01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726217AbgFEJbL (ORCPT ); Fri, 5 Jun 2020 05:31:11 -0400 Received: from ironmsg01-blr.qualcomm.com ([10.86.208.130]) by alexa-out-blr-01.qualcomm.com with ESMTP/TLS/AES256-SHA; 05 Jun 2020 15:01:01 +0530 Received: from c-ppvk-linux.qualcomm.com ([10.206.24.34]) by ironmsg01-blr.qualcomm.com with ESMTP; 05 Jun 2020 15:00:33 +0530 Received: by c-ppvk-linux.qualcomm.com (Postfix, from userid 2304101) id 51F1F48DD; Fri, 5 Jun 2020 15:00:32 +0530 (IST) From: Pradeep P V K To: bjorn.andersson@linaro.org, adrian.hunter@intel.com, robh+dt@kernel.org, ulf.hansson@linaro.org, vbadigan@codeaurora.org, sboyd@kernel.org, georgi.djakov@linaro.org, mka@chromium.org Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-mmc-owner@vger.kernel.org, rnayak@codeaurora.org, sibis@codeaurora.org, matthias@chromium.org, Pradeep P V K Subject: [PATCH??V3 1/2] mmc: sdhci-msm: Add interconnect bandwidth scaling support Date: Fri, 5 Jun 2020 15:00:26 +0530 Message-Id: <1591349427-27004-2-git-send-email-ppvk@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1591349427-27004-1-git-send-email-ppvk@codeaurora.org> References: <1591269283-24084-1-git-send-email-ppvk@codeaurora.org> <1591349427-27004-1-git-send-email-ppvk@codeaurora.org> MIME-Version: 1.0 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Interconnect bandwidth scaling support is now added as a part of OPP [1]. So, make sure interconnect driver is ready before handling interconnect scaling. This change is based on [1] [Patch v8] Introduce OPP bandwidth bindings (https://lkml.org/lkml/2020/5/12/493) [2] [Patch v3] mmc: sdhci-msm: Fix error handling for dev_pm_opp_of_add_table() (https://lkml.org/lkml/2020/5/5/491) Signed-off-by: Pradeep P V K --- drivers/mmc/host/sdhci-msm.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c index b277dd7..a945e84 100644 --- a/drivers/mmc/host/sdhci-msm.c +++ b/drivers/mmc/host/sdhci-msm.c @@ -14,6 +14,7 @@ #include #include #include +#include #include "sdhci-pltfm.h" #include "cqhci.h" @@ -2070,6 +2071,13 @@ static int sdhci_msm_probe(struct platform_device *pdev) } msm_host->bulk_clks[0].clk = clk; + /* Make sure that ICC driver is ready for interconnect bandwdith + * scaling before registering the device for OPP. + */ + ret = dev_pm_opp_of_find_icc_paths(&pdev->dev, NULL); + if (ret) + goto bus_clk_disable; + msm_host->opp_table = dev_pm_opp_set_clkname(&pdev->dev, "core"); if (IS_ERR(msm_host->opp_table)) { ret = PTR_ERR(msm_host->opp_table);