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=-8.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=ham 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 C8125C282DD for ; Mon, 10 Jun 2019 12:21:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9404D2145D for ; Mon, 10 Jun 2019 12:21:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390018AbfFJMVu (ORCPT ); Mon, 10 Jun 2019 08:21:50 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:19561 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S2389705AbfFJMVt (ORCPT ); Mon, 10 Jun 2019 08:21:49 -0400 X-UUID: bfc0d99797304ae79b3b2753004beee9-20190610 X-UUID: bfc0d99797304ae79b3b2753004beee9-20190610 Received: from mtkcas09.mediatek.inc [(172.21.101.178)] by mailgw02.mediatek.com (envelope-from ) (mhqrelay.mediatek.com ESMTP with TLS) with ESMTP id 1561093224; Mon, 10 Jun 2019 20:21:45 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 10 Jun 2019 20:21:44 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 10 Jun 2019 20:21:43 +0800 From: Yong Wu To: Joerg Roedel , Matthias Brugger , Robin Murphy , Rob Herring CC: Evan Green , Tomasz Figa , Will Deacon , , , , , , , , , , Nicolas Boichat , , Matthias Kaehlcke Subject: [PATCH v7 17/21] memory: mtk-smi: Get rid of need_larbid Date: Mon, 10 Jun 2019 20:17:56 +0800 Message-ID: <1560169080-27134-18-git-send-email-yong.wu@mediatek.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1560169080-27134-1-git-send-email-yong.wu@mediatek.com> References: <1560169080-27134-1-git-send-email-yong.wu@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The "mediatek,larb-id" has already been parsed in MTK IOMMU driver. It's no need to parse it again in SMI driver. Only clean some codes. This patch is fit for all the current mt2701, mt2712, mt7623, mt8173 and mt8183. After this patch, the "mediatek,larb-id" only be needed for mt2712 which have 2 M4Us. In the other SoCs, we can get the larb-id from M4U in which the larbs in the "mediatek,larbs" always are ordered. Correspondingly, the larb_nr in the "struct mtk_smi_iommu" could also be deleted. CC: Matthias Brugger Signed-off-by: Yong Wu Reviewed-by: Evan Green --- drivers/iommu/mtk_iommu.c | 1 - drivers/iommu/mtk_iommu_v1.c | 2 -- drivers/memory/mtk-smi.c | 26 ++------------------------ include/soc/mediatek/smi.h | 1 - 4 files changed, 2 insertions(+), 28 deletions(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index ec4ce74..6053b8b 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -634,7 +634,6 @@ static int mtk_iommu_probe(struct platform_device *pdev) "mediatek,larbs", NULL); if (larb_nr < 0) return larb_nr; - data->smi_imu.larb_nr = larb_nr; for (i = 0; i < larb_nr; i++) { struct device_node *larbnode; diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c index 52b01e3..73308ad 100644 --- a/drivers/iommu/mtk_iommu_v1.c +++ b/drivers/iommu/mtk_iommu_v1.c @@ -624,8 +624,6 @@ static int mtk_iommu_probe(struct platform_device *pdev) larb_nr++; } - data->smi_imu.larb_nr = larb_nr; - platform_set_drvdata(pdev, data); ret = mtk_iommu_hw_init(data); diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c index 08cf40d..10e6493 100644 --- a/drivers/memory/mtk-smi.c +++ b/drivers/memory/mtk-smi.c @@ -67,7 +67,6 @@ struct mtk_smi_common_plat { }; struct mtk_smi_larb_gen { - bool need_larbid; int port_in_larb[MTK_LARB_NR_MAX + 1]; void (*config_port)(struct device *); unsigned int larb_direct_to_common_mask; @@ -153,18 +152,9 @@ void mtk_smi_larb_put(struct device *larbdev) struct mtk_smi_iommu *smi_iommu = data; unsigned int i; - if (larb->larb_gen->need_larbid) { - larb->mmu = &smi_iommu->larb_imu[larb->larbid].mmu; - return 0; - } - - /* - * If there is no larbid property, Loop to find the corresponding - * iommu information. - */ - for (i = 0; i < smi_iommu->larb_nr; i++) { + for (i = 0; i < MTK_LARB_NR_MAX; i++) { if (dev == smi_iommu->larb_imu[i].dev) { - /* The 'mmu' may be updated in iommu-attach/detach. */ + larb->larbid = i; larb->mmu = &smi_iommu->larb_imu[i].mmu; return 0; } @@ -243,7 +233,6 @@ static void mtk_smi_larb_config_port_gen1(struct device *dev) }; static const struct mtk_smi_larb_gen mtk_smi_larb_mt2701 = { - .need_larbid = true, .port_in_larb = { LARB0_PORT_OFFSET, LARB1_PORT_OFFSET, LARB2_PORT_OFFSET, LARB3_PORT_OFFSET @@ -252,7 +241,6 @@ static void mtk_smi_larb_config_port_gen1(struct device *dev) }; static const struct mtk_smi_larb_gen mtk_smi_larb_mt2712 = { - .need_larbid = true, .config_port = mtk_smi_larb_config_port_gen2_general, .larb_direct_to_common_mask = BIT(8) | BIT(9), /* bdpsys */ }; @@ -291,7 +279,6 @@ static int mtk_smi_larb_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct device_node *smi_node; struct platform_device *smi_pdev; - int err; larb = devm_kzalloc(dev, sizeof(*larb), GFP_KERNEL); if (!larb) @@ -321,15 +308,6 @@ static int mtk_smi_larb_probe(struct platform_device *pdev) } larb->smi.dev = dev; - if (larb->larb_gen->need_larbid) { - err = of_property_read_u32(dev->of_node, "mediatek,larb-id", - &larb->larbid); - if (err) { - dev_err(dev, "missing larbid property\n"); - return err; - } - } - smi_node = of_parse_phandle(dev->of_node, "mediatek,smi", 0); if (!smi_node) return -EINVAL; diff --git a/include/soc/mediatek/smi.h b/include/soc/mediatek/smi.h index 5201e90..a65324d 100644 --- a/include/soc/mediatek/smi.h +++ b/include/soc/mediatek/smi.h @@ -29,7 +29,6 @@ struct mtk_smi_larb_iommu { }; struct mtk_smi_iommu { - unsigned int larb_nr; struct mtk_smi_larb_iommu larb_imu[MTK_LARB_NR_MAX]; }; -- 1.9.1