From patchwork Fri Oct 21 10:48:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?UmV4LUJDIENoZW4gKOmZs+afj+i+sCk=?= X-Patchwork-Id: 13014613 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A906BC433FE for ; Fri, 21 Oct 2022 11:00:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=+kORvJauJWc7FeMOLHlypM0/sIXyHp4QrFR9Q1BHcyQ=; b=IQKPbHOo3RICz8 5PsNQ7Md7qaSmEMWXgkvSpibWUTI9U0X8Bh7anWRUOQLShBSU39iTKnFiHoUq2hVptC8Qszyus0FG RpaOP9Yq4OK1dgi2gVhQzAwPPluawJCtUDcFh/FTWr8Tns0PxfMVCpbWcCztB/Gu9uVKAdMxO6W9Q mhknI/WoO7ExcW8mDLRXYPS405swN4kC586dk+4s6zUfrS1PXOCz1xewqb6SbE4GqO7sHGQV5RXUH Wimih9pEOTZ2lgFTbzO7aLzISwu3oK30UZn3N2G5AdjWM+dHakTCHrzwMT5ve6BxE1DrBItOUe29Y 7YJLKkLHjhWrhOcZP/ag==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1olpjp-007FY8-9l; Fri, 21 Oct 2022 10:58:53 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1olpjl-007FWF-77; Fri, 21 Oct 2022 10:58:51 +0000 X-UUID: 60a83932ec1d4a828b332fd3f354128e-20221021 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=BaA+3G5xEHH3mnc9/OCzPIeSENMk+pFmZNY64ZK7jsQ=; b=OyMQmHR+bSV2lTczfUIcIXpUy22xXlcmXIMSKuJ0zwKcvcFIDc9dvEqnaWeeEQGUp4dyEqZccnWP3zSIHanNgmeluq3pXMtiyEVXyU6QH8zYVJhIv0Rvr3rnq9/rEgENrjAgTeiatuBZMC+2ZvA3kiZJflSPJEk4I9UYC/IApTk=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.12,REQID:40d0cee6-92fd-4532-a3cf-7461ab818910,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:62cd327,CLOUDID:cf95b16c-89d3-4bfa-baad-dc632a24bca3,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0 X-UUID: 60a83932ec1d4a828b332fd3f354128e-20221021 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 27902083; Fri, 21 Oct 2022 03:58:44 -0700 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.792.3; Fri, 21 Oct 2022 18:48:06 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.15 via Frontend Transport; Fri, 21 Oct 2022 18:48:06 +0800 From: Bo-Chen Chen To: , , , CC: , , , , , , , , , , Bo-Chen Chen Subject: [PATCH v6 3/3] reset: mediatek: Add auxiliary bus support for sysclk Date: Fri, 21 Oct 2022 18:48:04 +0800 Message-ID: <20221021104804.21391-4-rex-bc.chen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20221021104804.21391-1-rex-bc.chen@mediatek.com> References: <20221021104804.21391-1-rex-bc.chen@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221021_035849_284943_204F2890 X-CRM114-Status: GOOD ( 19.59 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org To use auxiliary bus interface: - Add a probe function inside reset-mediatek-sysclk.c. - Revise the auxiliary table name because the rule for this table is `KBUILD_MODNAME.device_name` - Remove mtk_reset_init_with_dev() because we should use aux bus interface directly. Suggested-by: Stephen Boyd Signed-off-by: Bo-Chen Chen --- drivers/reset/mediatek/Kconfig | 1 + .../reset/mediatek/reset-mediatek-sysclk.c | 67 ++++++++++--------- include/linux/reset/reset-mediatek-sysclk.h | 1 - 3 files changed, 35 insertions(+), 34 deletions(-) diff --git a/drivers/reset/mediatek/Kconfig b/drivers/reset/mediatek/Kconfig index a416cb938753..b5b671017d34 100644 --- a/drivers/reset/mediatek/Kconfig +++ b/drivers/reset/mediatek/Kconfig @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0-only config RESET_MEDIATEK_SYSCLK tristate "MediaTek System Clock Reset Driver" + depends on AUXILIARY_BUS help This enables the system clock reset driver for MediaTek SoCs. diff --git a/drivers/reset/mediatek/reset-mediatek-sysclk.c b/drivers/reset/mediatek/reset-mediatek-sysclk.c index 9cf115e66a4d..79d58bc728b2 100644 --- a/drivers/reset/mediatek/reset-mediatek-sysclk.c +++ b/drivers/reset/mediatek/reset-mediatek-sysclk.c @@ -3,6 +3,7 @@ * Copyright (c) 2022 MediaTek Inc. */ +#include #include #include #include @@ -213,78 +214,73 @@ static int register_rst_ctrl_with_dev(struct device *dev, struct mtk_clk_rst_dat return 0; } -struct mtk_rst_id { - char name[32]; - u32 driver_data; -}; - -static struct mtk_rst_id mtk_sysclk_reset_ids[] = { +static struct auxiliary_device_id mtk_sysclk_reset_ids[] = { { - .name = "mt2701-eth-rst", + .name = "clk_mt2701_eth.mt2701-eth-rst", .driver_data = MTK_RST_ID_MT2701_ETH, }, { - .name = "mt2701-g3d-rst", + .name = "clk_mt2701_g3d.mt2701-g3d-rst", .driver_data = MTK_RST_ID_MT2701_G3D, }, { - .name = "mt2701-hif-rst", + .name = "clk_mt2701_hif.mt2701-hif-rst", .driver_data = MTK_RST_ID_MT2701_HIF, }, { - .name = "mt2701-infrasys-rst", + .name = "clk_mt2701.mt2701-infrasys-rst", .driver_data = MTK_RST_ID_MT2701_INFRASYS, }, { - .name = "mt2701-pericfg-rst", + .name = "clk_mt2701.mt2701-pericfg-rst", .driver_data = MTK_RST_ID_MT2701_PERICFG, }, { - .name = "mt2712-infra-rst", + .name = "clk_mt2712.mt2712-infra-rst", .driver_data = MTK_RST_ID_MT2712_INFRA, }, { - .name = "mt2712-peri-rst", + .name = "clk_mt2712.mt2712-peri-rst", .driver_data = MTK_RST_ID_MT2712_PERI, }, { - .name = "mt6795-ifa", + .name = "clk_mt6795_infracfg.mt6795-ifa", .driver_data = MTK_RST_ID_MT6795_INFRA, }, { - .name = "mt6795-peri", + .name = "clk_mt6795_pericfg.mt6795-peri", .driver_data = MTK_RST_ID_MT6795_PERI, }, { - .name = "mt7622-eth-rst", + .name = "clk_mt7622_eth.mt7622-eth-rst", .driver_data = MTK_RST_ID_MT7622_ETH, }, { - .name = "mt7622-usb-rst", + .name = "clk_mt7622_hif.mt7622-usb-rst", .driver_data = MTK_RST_ID_MT7622_SSUSBSYS, }, { - .name = "mt7622-pcie-rst", + .name = "clk_mt7622_hif.mt7622-pcie-rst", .driver_data = MTK_RST_ID_MT7622_PCIESYS, }, { - .name = "mt7622-infrasys-rst", + .name = "clk_mt7622.mt7622-infrasys-rst", .driver_data = MTK_RST_ID_MT7622_INFRASYS, }, { - .name = "mt7622-pericfg-rst", + .name = "clk_mt7622.mt7622-pericfg-rst", .driver_data = MTK_RST_ID_MT7622_PERICFG, }, { - .name = "mt7629-ethsys-rst", + .name = "clk_mt7629_eth.mt7629-ethsys-rst", .driver_data = MTK_RST_ID_MT7629_ETHSYS, }, { - .name = "mt7629-usb-rst", + .name = "clk_mt7629_hif.mt7629-usb-rst", .driver_data = MTK_RST_ID_MT7629_SSUSBSYS, }, { - .name = "mt7629-pcie-rst", + .name = "clk_mt7629_hif.mt7629-pcie-rst", .driver_data = MTK_RST_ID_MT7629_PCIESYS, }, { @@ -304,24 +300,25 @@ static struct mtk_rst_id mtk_sysclk_reset_ids[] = { .driver_data = MTK_RST_ID_MT8173_PERICFG, }, { - .name = "mt8183-infra-rst", + .name = "clk_mt8183.mt8183-infra-rst", .driver_data = MTK_RST_ID_MT8183_INFRA, }, { - .name = "mt8186-infra-ao-rst", + .name = "clk_mtk.mt8186-infra-ao-rst", .driver_data = MTK_RST_ID_MT8186_INFRA_AO, }, { - .name = "mt8192-infra-rst", + .name = "clk_mt8192.mt8192-infra-rst", .driver_data = MTK_RST_ID_MT8192_INFRA, }, { - .name = "mt8195-infra-ao-rst", + .name = "clk_mtk.mt8195-infra-ao-rst", .driver_data = MTK_RST_ID_MT8195_INFRA_AO, }, { }, }; +MODULE_DEVICE_TABLE(auxiliary, mtk_sysclk_reset_ids); /* reset data pointer */ struct mtk_clk_rst_data *p_clk_rst_data[MTK_RST_ID_MAX]; @@ -372,16 +369,20 @@ void mtk_rst_remove_with_node(struct device_node *np, const char *name) } EXPORT_SYMBOL_GPL(mtk_rst_remove_with_node); -int mtk_reset_init_with_dev(struct device *dev, const char *name) +static int mtk_sysclk_reset_probe(struct auxiliary_device *adev, + const struct auxiliary_device_id *id) { - struct mtk_clk_rst_data *data = find_rst_data(name); - - if (!dev || !data) + if (id->driver_data >= MTK_RST_ID_MAX) return -EINVAL; - return register_rst_ctrl_with_dev(dev, data); + return register_rst_ctrl_with_dev(adev->dev.parent, p_clk_rst_data[id->driver_data]); } -EXPORT_SYMBOL_GPL(mtk_reset_init_with_dev); + +static struct auxiliary_driver mtk_sysclk_reset_driver = { + .probe = mtk_sysclk_reset_probe, + .id_table = mtk_sysclk_reset_ids, +}; +module_auxiliary_driver(mtk_sysclk_reset_driver); MODULE_DESCRIPTION("MediaTek System Clock Reset Driver"); MODULE_AUTHOR("Bo-Chen Chen "); diff --git a/include/linux/reset/reset-mediatek-sysclk.h b/include/linux/reset/reset-mediatek-sysclk.h index 26f7573e46a6..6f5f15d12edd 100644 --- a/include/linux/reset/reset-mediatek-sysclk.h +++ b/include/linux/reset/reset-mediatek-sysclk.h @@ -93,6 +93,5 @@ struct mtk_clk_rst_data { int mtk_rst_register_clk_rst_data(u32 index, struct mtk_clk_rst_data *data); int mtk_reset_init_with_node(struct device_node *np, const char *name); void mtk_rst_remove_with_node(struct device_node *np, const char *name); -int mtk_reset_init_with_dev(struct device *dev, const char *name); #endif /* __LINUX_RESET_MEDIATEK_SYSCLK_H__ */