From patchwork Thu May 14 10:54:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sharat Masetty X-Patchwork-Id: 11548485 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 59D851391 for ; Thu, 14 May 2020 10:54:51 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3854C20734 for ; Thu, 14 May 2020 10:54:51 +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="HtPmb7GD" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3854C20734 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5E8C06EB24; Thu, 14 May 2020 10:54:50 +0000 (UTC) X-Original-To: dri-devel@freedesktop.org Delivered-To: dri-devel@freedesktop.org Received: from mail26.static.mailgun.info (mail26.static.mailgun.info [104.130.122.26]) by gabe.freedesktop.org (Postfix) with ESMTPS id E665F6E321 for ; Thu, 14 May 2020 10:54:46 +0000 (UTC) DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1589453688; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=/k82qTY+EJQvBQprDASUJRtrdU/AV/qO4tr7cq/RAPw=; b=HtPmb7GDSS7syKh5LMcE3vog8Rx4zGx5aepGsqw8rVXyBHuIe5YPibdzuSBAVqp1/yf1BFN0 n4ZGcrsNQd3XX3PisFga3UunBpyB1xWnNdpXJyOXJU8nnziHv/00GuWVQVFgJFLFNQT8f435 ECY4WyHA5QClKmm4xC23ENQ41Lw= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyIxOTRiMSIsICJkcmktZGV2ZWxAZnJlZWRlc2t0b3Aub3JnIiwgImJlOWU0YSJd 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 5ebd2372.7fda2935e148-smtp-out-n03; Thu, 14 May 2020 10:54:42 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 6C7C8C44791; Thu, 14 May 2020 10:54:42 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from hyd-lnxbld559.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: smasetty) by smtp.codeaurora.org (Postfix) with ESMTPSA id 8CFABC4478F; Thu, 14 May 2020 10:54:37 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 8CFABC4478F 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=smasetty@codeaurora.org From: Sharat Masetty To: freedreno@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [PATCH 3/6] OPP: Add and export helper to set bandwidth Date: Thu, 14 May 2020 16:24:16 +0530 Message-Id: <1589453659-27581-4-git-send-email-smasetty@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1589453659-27581-1-git-send-email-smasetty@codeaurora.org> References: <1589453659-27581-1-git-send-email-smasetty@codeaurora.org> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arm-msm@vger.kernel.org, Sharat Masetty , linux-kernel@vger.kernel.org, mka@chromium.org, dri-devel@freedesktop.org, georgi.djakov@linaro.org, Sibi Sankar MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Sibi Sankar Add and export 'dev_pm_opp_set_bw' to set the bandwidth levels associated with an OPP for a given frequency. Signed-off-by: Sibi Sankar Signed-off-by: Sharat Masetty --- drivers/opp/core.c | 43 +++++++++++++++++++++++++++++++++++++++++++ include/linux/pm_opp.h | 6 ++++++ 2 files changed, 49 insertions(+) -- 2.7.4 diff --git a/drivers/opp/core.c b/drivers/opp/core.c index f42b7c4..0f34077 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -828,6 +828,49 @@ static int _set_required_opps(struct device *dev, } /** + * dev_pm_opp_set_bw() - sets bandwidth levels corresponding to an available opp + * @dev: device for which we do this operation + * @opp: opp based on which the bandwidth levels are to be configured + * + * This configures the bandwidth to the levels specified + * by the OPP. + * + * Return: 0 on success or a negative error value. + */ +int dev_pm_opp_set_bw(struct device *dev, struct dev_pm_opp *opp) +{ + struct opp_table *opp_table; + int ret = -EINVAL; + int i; + + if (IS_ERR_OR_NULL(opp) || !opp->available) { + dev_err(dev, "%s: Invalid parameters\n", __func__); + return -EINVAL; + } + + opp_table = _find_opp_table(dev); + if (IS_ERR(opp_table)) { + dev_err(dev, "%s: device opp table doesn't exist\n", __func__); + return PTR_ERR(opp_table); + } + + if (opp_table->paths) { + for (i = 0; i < opp_table->path_count; i++) { + ret = icc_set_bw(opp_table->paths[i], + opp->bandwidth[i].avg, + opp->bandwidth[i].peak); + if (ret) + dev_err(dev, "Failed to set bandwidth[%d]: %d\n", + i, ret); + } + } + + dev_pm_opp_put_opp_table(opp_table); + return ret; +} +EXPORT_SYMBOL_GPL(dev_pm_opp_set_bw); + +/** * dev_pm_opp_set_rate() - Configure new OPP based on frequency * @dev: device for which we do this operation * @target_freq: frequency to achieve diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index 76f8c6b..04f7fda 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -156,6 +156,7 @@ struct dev_pm_opp *dev_pm_opp_xlate_opp(struct opp_table *src_table, struct opp_table *dst_table, struct dev_pm_opp *src_opp); int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq); +int dev_pm_opp_set_bw(struct device *dev, struct dev_pm_opp *opp); int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, const struct cpumask *cpumask); int dev_pm_opp_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask); void dev_pm_opp_remove_table(struct device *dev); @@ -354,6 +355,11 @@ static inline int dev_pm_opp_set_rate(struct device *dev, unsigned long target_f return -ENOTSUPP; } +static inline int dev_pm_opp_set_bw(struct device *dev, struct dev_pm_opp *opp) +{ + return -ENOTSUPP; +} + static inline int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, const struct cpumask *cpumask) { return -ENOTSUPP;