From nobody Thu Oct 2 15:35:39 2025 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (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 22E7C35A289; Mon, 15 Sep 2025 15:21:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757949707; cv=none; b=TU6Z3N2uCjw8aJffo3XI1YOXa5el8VGQhsXMw68VTVUc7UklXmesUqNIG86Q0cSUZP7lTeMjWmjsW3oZ1nBsBaDLXTnzUwq9RvAVu/hGdVFGQwQg2fu0ykYqD0B467OzO5UMdnJ/7L3HWZ9XV6QdGpwC1fM/oon8kq1RmP6R1GY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757949707; c=relaxed/simple; bh=xZiTUJoml1PcEKEopIk/v+FM1m3yh+F+ryseknfNl+w=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=q7cmbwy2s5ey6aSsX2q16qW0xOfVKvDrSziIIKfVojI61LRmwvyF7voRd/iqK/pCryp5PiYid4oREWBsuv+IiGSpbA/+8gV8deRKzI76SrclGZpzgFt3k8HLU5M4RSpFVwKr2XBOLx1h4UHSOI39cu5HR2nIoT7S7IyJ7whAOJY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=pwhowDQ6; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="pwhowDQ6" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1757949703; bh=xZiTUJoml1PcEKEopIk/v+FM1m3yh+F+ryseknfNl+w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pwhowDQ6cQcDh6TLX5jELj/EEHCOBkG9HO34mDv+RaS2KYjK/aFJbXQFJkmCYAQ3S lcv4jMzvUG2xMNn9+Woh/H1zDmDAB/COFjeszWocvI0fUp7daxV7FptfT9orVIZGTd wnH6qmGtrRbccP8R2cQSzEMDXtp1u3SW6Su9/4gtlZybwFpE+VeNh0ApqflPMkeTyb hvVIY5FIsW4AlT4zgojcibL1OTBJrjhv2pnk0Ceb6sWC8bkmrZ3ZhMy4ZI6D5yZQZA EFjLDaG6nLBJ/MkiqGCNazwmkX8zVd6JrzNRVS2bimq0ZE2uEyyxyxTBMOulCzHLru 5hw2qikG6ip4g== Received: from laura.lan (unknown [IPv6:2001:b07:646b:e2:1c8d:f5ba:823d:730b]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: laura.nao) by bali.collaboradmins.com (Postfix) with ESMTPSA id 938B917E046C; Mon, 15 Sep 2025 17:21:42 +0200 (CEST) From: Laura Nao To: mturquette@baylibre.com, sboyd@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, p.zabel@pengutronix.de, richardcochran@gmail.com Cc: guangjie.song@mediatek.com, wenst@chromium.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, netdev@vger.kernel.org, kernel@collabora.com, Laura Nao , =?UTF-8?q?N=C3=ADcolas=20F=20=2E=20R=20=2E=20A=20=2E=20Prado?= Subject: [PATCH v6 17/27] clk: mediatek: Add MT8196 I2C clock support Date: Mon, 15 Sep 2025 17:19:37 +0200 Message-Id: <20250915151947.277983-18-laura.nao@collabora.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250915151947.277983-1-laura.nao@collabora.com> References: <20250915151947.277983-1-laura.nao@collabora.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Add support for the MT8196 I2C clock controller, which provides clock gate control for I2C. Reviewed-by: N=C3=ADcolas F. R. A. Prado Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Chen-Yu Tsai Signed-off-by: Laura Nao --- drivers/clk/mediatek/Kconfig | 7 ++ drivers/clk/mediatek/Makefile | 1 + .../clk/mediatek/clk-mt8196-imp_iic_wrap.c | 118 ++++++++++++++++++ 3 files changed, 126 insertions(+) create mode 100644 drivers/clk/mediatek/clk-mt8196-imp_iic_wrap.c diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig index c977719046a4..fe2697b64ef0 100644 --- a/drivers/clk/mediatek/Kconfig +++ b/drivers/clk/mediatek/Kconfig @@ -1010,6 +1010,13 @@ config COMMON_CLK_MT8196 help This driver supports MediaTek MT8196 basic clocks. =20 +config COMMON_CLK_MT8196_IMP_IIC_WRAP + tristate "Clock driver for MediaTek MT8196 imp_iic_wrap" + depends on COMMON_CLK_MT8196 + default COMMON_CLK_MT8196 + help + This driver supports MediaTek MT8196 i2c clocks. + config COMMON_CLK_MT8196_PEXTPSYS tristate "Clock driver for MediaTek MT8196 pextpsys" depends on COMMON_CLK_MT8196 diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile index 88f7d8a229c2..241e7f5e7316 100644 --- a/drivers/clk/mediatek/Makefile +++ b/drivers/clk/mediatek/Makefile @@ -153,6 +153,7 @@ obj-$(CONFIG_COMMON_CLK_MT8195_WPESYS) +=3D clk-mt8195-= wpe.o obj-$(CONFIG_COMMON_CLK_MT8196) +=3D clk-mt8196-apmixedsys.o clk-mt8196-to= pckgen.o \ clk-mt8196-topckgen2.o clk-mt8196-vlpckgen.o \ clk-mt8196-peri_ao.o +obj-$(CONFIG_COMMON_CLK_MT8196_IMP_IIC_WRAP) +=3D clk-mt8196-imp_iic_wrap.o obj-$(CONFIG_COMMON_CLK_MT8196_PEXTPSYS) +=3D clk-mt8196-pextp.o obj-$(CONFIG_COMMON_CLK_MT8196_UFSSYS) +=3D clk-mt8196-ufs_ao.o obj-$(CONFIG_COMMON_CLK_MT8365) +=3D clk-mt8365-apmixedsys.o clk-mt8365.o diff --git a/drivers/clk/mediatek/clk-mt8196-imp_iic_wrap.c b/drivers/clk/m= ediatek/clk-mt8196-imp_iic_wrap.c new file mode 100644 index 000000000000..a63241671650 --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8196-imp_iic_wrap.c @@ -0,0 +1,118 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2025 MediaTek Inc. + * Guangjie Song + * Copyright (c) 2025 Collabora Ltd. + * Laura Nao + */ +#include + +#include +#include +#include +#include + +#include "clk-gate.h" +#include "clk-mtk.h" + +static const struct mtk_gate_regs imp_cg_regs =3D { + .set_ofs =3D 0xe08, + .clr_ofs =3D 0xe04, + .sta_ofs =3D 0xe00, +}; + +#define GATE_IMP(_id, _name, _parent, _shift) { \ + .id =3D _id, \ + .name =3D _name, \ + .parent_name =3D _parent, \ + .regs =3D &imp_cg_regs, \ + .shift =3D _shift, \ + .flags =3D CLK_OPS_PARENT_ENABLE, \ + .ops =3D &mtk_clk_gate_ops_setclr, \ + } + +static const struct mtk_gate impc_clks[] =3D { + GATE_IMP(CLK_IMPC_I2C11, "impc_i2c11", "i2c_p", 0), + GATE_IMP(CLK_IMPC_I2C12, "impc_i2c12", "i2c_p", 1), + GATE_IMP(CLK_IMPC_I2C13, "impc_i2c13", "i2c_p", 2), + GATE_IMP(CLK_IMPC_I2C14, "impc_i2c14", "i2c_p", 3), +}; + +static const struct mtk_clk_desc impc_mcd =3D { + .clks =3D impc_clks, + .num_clks =3D ARRAY_SIZE(impc_clks), +}; + +static const struct mtk_gate impe_clks[] =3D { + GATE_IMP(CLK_IMPE_I2C5, "impe_i2c5", "i2c_east", 0), +}; + +static const struct mtk_clk_desc impe_mcd =3D { + .clks =3D impe_clks, + .num_clks =3D ARRAY_SIZE(impe_clks), +}; + +static const struct mtk_gate_regs impn_hwv_regs =3D { + .set_ofs =3D 0x0000, + .clr_ofs =3D 0x0004, + .sta_ofs =3D 0x2c00, +}; + +#define GATE_HWV_IMPN(_id, _name, _parent, _shift) { \ + .id =3D _id, \ + .name =3D _name, \ + .parent_name =3D _parent, \ + .regs =3D &imp_cg_regs, \ + .hwv_regs =3D &impn_hwv_regs, \ + .shift =3D _shift, \ + .ops =3D &mtk_clk_gate_hwv_ops_setclr, \ + .flags =3D CLK_OPS_PARENT_ENABLE, \ + } + +static const struct mtk_gate impn_clks[] =3D { + GATE_IMP(CLK_IMPN_I2C1, "impn_i2c1", "i2c_north", 0), + GATE_IMP(CLK_IMPN_I2C2, "impn_i2c2", "i2c_north", 1), + GATE_IMP(CLK_IMPN_I2C4, "impn_i2c4", "i2c_north", 2), + GATE_HWV_IMPN(CLK_IMPN_I2C7, "impn_i2c7", "i2c_north", 3), + GATE_IMP(CLK_IMPN_I2C8, "impn_i2c8", "i2c_north", 4), + GATE_IMP(CLK_IMPN_I2C9, "impn_i2c9", "i2c_north", 5), +}; + +static const struct mtk_clk_desc impn_mcd =3D { + .clks =3D impn_clks, + .num_clks =3D ARRAY_SIZE(impn_clks), +}; + +static const struct mtk_gate impw_clks[] =3D { + GATE_IMP(CLK_IMPW_I2C0, "impw_i2c0", "i2c_west", 0), + GATE_IMP(CLK_IMPW_I2C3, "impw_i2c3", "i2c_west", 1), + GATE_IMP(CLK_IMPW_I2C6, "impw_i2c6", "i2c_west", 2), + GATE_IMP(CLK_IMPW_I2C10, "impw_i2c10", "i2c_west", 3), +}; + +static const struct mtk_clk_desc impw_mcd =3D { + .clks =3D impw_clks, + .num_clks =3D ARRAY_SIZE(impw_clks), +}; + +static const struct of_device_id of_match_clk_mt8196_imp_iic_wrap[] =3D { + { .compatible =3D "mediatek,mt8196-imp-iic-wrap-c", .data =3D &impc_mcd }, + { .compatible =3D "mediatek,mt8196-imp-iic-wrap-e", .data =3D &impe_mcd }, + { .compatible =3D "mediatek,mt8196-imp-iic-wrap-n", .data =3D &impn_mcd }, + { .compatible =3D "mediatek,mt8196-imp-iic-wrap-w", .data =3D &impw_mcd }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_match_clk_mt8196_imp_iic_wrap); + +static struct platform_driver clk_mt8196_imp_iic_wrap_drv =3D { + .probe =3D mtk_clk_simple_probe, + .remove =3D mtk_clk_simple_remove, + .driver =3D { + .name =3D "clk-mt8196-imp_iic_wrap", + .of_match_table =3D of_match_clk_mt8196_imp_iic_wrap, + }, +}; +module_platform_driver(clk_mt8196_imp_iic_wrap_drv); + +MODULE_DESCRIPTION("MediaTek MT8196 I2C Wrapper clocks driver"); +MODULE_LICENSE("GPL"); --=20 2.39.5