From patchwork Mon Sep 13 17:38:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Abel Vesa X-Patchwork-Id: 510153 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=-16.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, 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 5268CC433FE for ; Mon, 13 Sep 2021 17:38:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3DC1F610CF for ; Mon, 13 Sep 2021 17:38:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344392AbhIMRkB (ORCPT ); Mon, 13 Sep 2021 13:40:01 -0400 Received: from inva021.nxp.com ([92.121.34.21]:58850 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244469AbhIMRjp (ORCPT ); Mon, 13 Sep 2021 13:39:45 -0400 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 8C92E2005E1; Mon, 13 Sep 2021 19:38:28 +0200 (CEST) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 7E3C12005D8; Mon, 13 Sep 2021 19:38:28 +0200 (CEST) Received: from fsr-ub1664-175.ea.freescale.net (fsr-ub1664-175.ea.freescale.net [10.171.82.40]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id AD8EB20363; Mon, 13 Sep 2021 19:38:27 +0200 (CEST) From: Abel Vesa To: Rob Herring , Dong Aisheng , Shawn Guo , Sascha Hauer , Fabio Estevam , "catalin.marinas@arm.com" , Will Deacon , MyungJoo Ham , Kyungmin Park , Chanwoo Choi , Georgi Djakov , Adrian Hunter , Ulf Hansson , Ahmad Fatoum Cc: Pengutronix Kernel Team , linux-serial@vger.kernel.org, NXP Linux Team , Linux Kernel Mailing List , devicetree@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Abel Vesa Subject: [RFC 07/19] interconnect: imx: Switch from imx_icc_node_adj_desc to fsl, icc-id node assignment Date: Mon, 13 Sep 2021 20:38:02 +0300 Message-Id: <1631554694-9599-8-git-send-email-abel.vesa@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1631554694-9599-1-git-send-email-abel.vesa@nxp.com> References: <1631554694-9599-1-git-send-email-abel.vesa@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org In order to be able to have more than one NoCs in the interconnect net we need to decouple the NoC from the dram. So instead of using the imx_icc_node_adj_desc, we use the fsl,icc-id property that is in each NoC (or pl301) to the icc node (based on the id) to it. Along with all the NoC and pl301 nodes in the dts we will have a interconnect dedicated node. This node will be the actual device of the icc provider. Signed-off-by: Abel Vesa --- drivers/interconnect/imx/imx.c | 72 +++++++++++++++------------------- 1 file changed, 32 insertions(+), 40 deletions(-) diff --git a/drivers/interconnect/imx/imx.c b/drivers/interconnect/imx/imx.c index c770951a909c..db048df80011 100644 --- a/drivers/interconnect/imx/imx.c +++ b/drivers/interconnect/imx/imx.c @@ -34,9 +34,9 @@ static int imx_icc_node_set(struct icc_node *node) if (!node_data->qos_dev) return 0; - freq = (node->avg_bw + node->peak_bw) * node_data->desc->adj->bw_mul; - do_div(freq, node_data->desc->adj->bw_div); - dev_dbg(dev, "node %s device %s avg_bw %ukBps peak_bw %ukBps min_freq %llukHz\n", + freq = max(node->avg_bw, node->peak_bw); + + dev_dbg(dev, " DBG node %s device %s avg_bw %ukBps peak_bw %ukBps min_freq %llukHz\n", node->name, dev_name(node_data->qos_dev), node->avg_bw, node->peak_bw, freq); @@ -79,41 +79,35 @@ static int imx_icc_node_init_qos(struct icc_provider *provider, struct icc_node *node) { struct imx_icc_node *node_data = node->data; - const struct imx_icc_node_adj_desc *adj = node_data->desc->adj; struct device *dev = provider->dev; - struct device_node *dn = NULL; struct platform_device *pdev; + struct device_node *np = NULL, *dn = NULL; + int idx; - if (adj->main_noc) { - node_data->qos_dev = dev; - dev_dbg(dev, "icc node %s[%d] is main noc itself\n", - node->name, node->id); - } else { - dn = of_parse_phandle(dev->of_node, adj->phandle_name, 0); - if (!dn) { - dev_warn(dev, "Failed to parse %s\n", - adj->phandle_name); - return -ENODEV; - } - /* Allow scaling to be disabled on a per-node basis */ - if (!of_device_is_available(dn)) { - dev_warn(dev, "Missing property %s, skip scaling %s\n", - adj->phandle_name, node->name); - of_node_put(dn); - return 0; - } + for_each_node_with_property(np, "fsl,icc-id") { + of_property_read_u32(np, "fsl,icc-id", &idx); + if (idx == node_data->desc->id) + dn = np; + } - pdev = of_find_device_by_node(dn); - of_node_put(dn); - if (!pdev) { - dev_warn(dev, "node %s[%d] missing device for %pOF\n", - node->name, node->id, dn); - return -EPROBE_DEFER; - } - node_data->qos_dev = &pdev->dev; - dev_dbg(dev, "node %s[%d] has device node %pOF\n", - node->name, node->id, dn); + if (!dn) + return 0; + + if (!of_device_is_available(dn)) { + dev_warn(dev, "%pOF is disabled\n", dn); + return 0; + } + + pdev = of_find_device_by_node(dn); + of_node_put(dn); + if (!pdev) { + dev_warn(dev, "node %s[%d] missing device for %pOF\n", + node->name, node->id, dn); + return -EPROBE_DEFER; } + node_data->qos_dev = &pdev->dev; + dev_dbg(dev, "node %s[%d] has device node %pOF\n", node->name, + node->id, dn); return dev_pm_qos_add_request(node_data->qos_dev, &node_data->qos_req, @@ -151,12 +145,10 @@ static struct icc_node *imx_icc_node_add(struct icc_provider *provider, node_data->desc = node_desc; icc_node_add(node, provider); - if (node_desc->adj) { - ret = imx_icc_node_init_qos(provider, node); - if (ret < 0) { - imx_icc_node_destroy(node); - return ERR_PTR(ret); - } + ret = imx_icc_node_init_qos(provider, node); + if (ret < 0) { + imx_icc_node_destroy(node); + return ERR_PTR(ret); } return node; @@ -244,7 +236,7 @@ int imx_icc_register(struct platform_device *pdev, provider->aggregate = icc_std_aggregate; provider->xlate = of_icc_xlate_onecell; provider->data = data; - provider->dev = dev->parent; + provider->dev = dev; platform_set_drvdata(pdev, provider); ret = icc_provider_add(provider);