From nobody Thu Dec 18 08:12:30 2025 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7D558314D3F; Mon, 15 Dec 2025 03:50:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.61.82.184 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765770609; cv=none; b=puMhh/mOOOWlrRuu6ZUczNR4vg5N+LRe4YDpEWud2IuOAX2Jvv6yHSnF9D+unKf9cPZHWKVuROq+KHb4WMEP0qBsxUW9hl+FqSzfHuGz9uaHQbc4Z8QLp7P77Oa8rSFwo/Ai1CRoiChv7DtpFn5XkoOBrvc0yXg+pA5uxXWX0wk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765770609; c=relaxed/simple; bh=B58oTccghdmXfsRS/7P/W/c+Vj3J1BfxBlXktboF8ps=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=OTqs9H5OOEpB90Hh69hUmUX4yGv0Bn1uUzuM19fT3cC9Ruj9GfEmlx+tyj+8G/sVO6Rc6RlqBRxm7nfUiUjozZgh/Nu01TZHXcYmvvQu2QMa2fDyEbrSKsbpDBRqryCb1O++clhIv2WIrV45Cuhx5npOhpPVRp8wuEU+vffkhJk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com; spf=pass smtp.mailfrom=mediatek.com; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b=DMgJPBrw; arc=none smtp.client-ip=210.61.82.184 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mediatek.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="DMgJPBrw" X-UUID: 1db95864d96911f0b33aeb1e7f16c2b6-20251215 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=Lgne43yw7zvx4ot4RAuH5mrg8q7mjaZX4v2mJkJp9Rg=; b=DMgJPBrwQQQIUSzLFLvxpETudiVqD+vZRVtFX6KwmWCTwZnCWiM1LRddeIrLwQHdS+aYb8dMaiJnsueoSZ48aUvFxI7HSZWJEue38MjDgxo6lbZ9aRICou3DsdIiz6mO521WkbGj8LiEc65o6CLtCWPrrTg+GDO6jQwwg2pQY/4=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.3.6,REQID:499dabff-0697-4a54-b3b6-d169052bda22,IP:0,UR L:0,TC:0,Content:-25,EDM:-20,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTI ON:release,TS:-45 X-CID-META: VersionHash:a9d874c,CLOUDID:e5f430aa-6421-45b1-b8b8-e73e3dc9a90f,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:81|82|102|836|888|898,TC:-5,Content: 0|15|50,EDM:1,IP:nil,URL:0,File:130,RT:0,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI :0,OSA:0,AV:0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 2,SSN|SDN X-CID-BAS: 2,SSN|SDN,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-CID-RHF: D41D8CD98F00B204E9800998ECF8427E X-UUID: 1db95864d96911f0b33aeb1e7f16c2b6-20251215 Received: from mtkmbs14n1.mediatek.inc [(172.21.101.75)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 306404004; Mon, 15 Dec 2025 11:49:54 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by MTKMBS09N1.mediatek.inc (172.21.101.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.29; Mon, 15 Dec 2025 11:49:52 +0800 Received: from mtksitap99.mediatek.inc (10.233.130.16) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.2562.29 via Frontend Transport; Mon, 15 Dec 2025 11:49:52 +0800 From: irving.ch.lin To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Ulf Hansson , Richard Cochran CC: Qiqi Wang , , , , , , , , , , , , Subject: [PATCH v4 11/21] clk: mediatek: Add MT8189 dvfsrc clock support Date: Mon, 15 Dec 2025 11:49:20 +0800 Message-ID: <20251215034944.2973003-12-irving-ch.lin@mediatek.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20251215034944.2973003-1-irving-ch.lin@mediatek.com> References: <20251215034944.2973003-1-irving-ch.lin@mediatek.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Irving-CH Lin Add support for the MT8189 dvfsrc clock controller, which provides clock gate control for dram dvfs. Signed-off-by: Irving-CH Lin --- drivers/clk/mediatek/Kconfig | 10 +++++ drivers/clk/mediatek/Makefile | 1 + drivers/clk/mediatek/clk-mt8189-dvfsrc.c | 54 ++++++++++++++++++++++++ 3 files changed, 65 insertions(+) create mode 100644 drivers/clk/mediatek/clk-mt8189-dvfsrc.c diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig index c707b224dccd..76c9391bee69 100644 --- a/drivers/clk/mediatek/Kconfig +++ b/drivers/clk/mediatek/Kconfig @@ -860,6 +860,16 @@ config COMMON_CLK_MT8189_DBGAO vcore debug system clocks. If you want to control its clocks, say Y or M to include this driver in your kernel build. =20 +config COMMON_CLK_MT8189_DVFSRC + tristate "Clock driver for MediaTek MT8189 dvfsrc" + depends on COMMON_CLK_MT8189 + default COMMON_CLK_MT8189 + help + Enable this to support the clock management for the dvfsrc + on MediaTek MT8189 SoCs. This includes enabling and disabling + vcore dvfs clocks. If you want to control its clocks, say Y or M + to include this driver in your kernel build. + config COMMON_CLK_MT8192 tristate "Clock driver for MediaTek MT8192" depends on ARM64 || COMPILE_TEST diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile index eabe2cab4b8d..3a8dad865c97 100644 --- a/drivers/clk/mediatek/Makefile +++ b/drivers/clk/mediatek/Makefile @@ -128,6 +128,7 @@ obj-$(CONFIG_COMMON_CLK_MT8189) +=3D clk-mt8189-apmixed= sys.o clk-mt8189-topckgen.o obj-$(CONFIG_COMMON_CLK_MT8189_BUS) +=3D clk-mt8189-bus.o obj-$(CONFIG_COMMON_CLK_MT8189_CAM) +=3D clk-mt8189-cam.o obj-$(CONFIG_COMMON_CLK_MT8189_DBGAO) +=3D clk-mt8189-dbgao.o +obj-$(CONFIG_COMMON_CLK_MT8189_DVFSRC) +=3D clk-mt8189-dvfsrc.o obj-$(CONFIG_COMMON_CLK_MT8192) +=3D clk-mt8192-apmixedsys.o clk-mt8192.o obj-$(CONFIG_COMMON_CLK_MT8192_AUDSYS) +=3D clk-mt8192-aud.o obj-$(CONFIG_COMMON_CLK_MT8192_CAMSYS) +=3D clk-mt8192-cam.o diff --git a/drivers/clk/mediatek/clk-mt8189-dvfsrc.c b/drivers/clk/mediate= k/clk-mt8189-dvfsrc.c new file mode 100644 index 000000000000..f8ab656af6e6 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8189-dvfsrc.c @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2025 MediaTek Inc. + * Author: Qiqi Wang + */ + +#include +#include +#include +#include + +#include "clk-mtk.h" +#include "clk-gate.h" + +#include + +static const struct mtk_gate_regs dvfsrc_top_cg_regs =3D { + .set_ofs =3D 0x0, + .clr_ofs =3D 0x0, + .sta_ofs =3D 0x0, +}; + +#define GATE_DVFSRC_TOP_FLAGS(_id, _name, _parent, _shift, _flags) \ + GATE_MTK_FLAGS(_id, _name, _parent, &dvfsrc_top_cg_regs, _shift, \ + &mtk_clk_gate_ops_no_setclr_inv, _flags) + +static const struct mtk_gate dvfsrc_top_clks[] =3D { + GATE_DVFSRC_TOP_FLAGS(CLK_DVFSRC_TOP_DVFSRC_EN, "dvfsrc_dvfsrc_en", + "clk26m", 0, CLK_IS_CRITICAL), +}; + +static const struct mtk_clk_desc dvfsrc_top_mcd =3D { + .clks =3D dvfsrc_top_clks, + .num_clks =3D ARRAY_SIZE(dvfsrc_top_clks), +}; + +static const struct of_device_id of_match_clk_mt8189_dvfsrc[] =3D { + { .compatible =3D "mediatek,mt8189-dvfsrc-top", .data =3D &dvfsrc_top_mcd= }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_match_clk_mt8189_dvfsrc); + +static struct platform_driver clk_mt8189_dvfsrc_drv =3D { + .probe =3D mtk_clk_simple_probe, + .remove =3D mtk_clk_simple_remove, + .driver =3D { + .name =3D "clk-mt8189-dvfsrc", + .of_match_table =3D of_match_clk_mt8189_dvfsrc, + }, +}; + +module_platform_driver(clk_mt8189_dvfsrc_drv); +MODULE_DESCRIPTION("MediaTek MT8189 dvfsrc clocks driver"); +MODULE_LICENSE("GPL"); --=20 2.45.2