From mboxrd@z Thu Jan 1 00:00:00 1970 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 CEDA142B32D; Thu, 9 Jul 2026 13:43:16 +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=1783604598; cv=none; b=sejj8nj/e0v+yAXIHQxyW1IxGxsmpM/lxXnZgoN9es43jgnbq0BbjEcC+PsQqZ/XYslp6CyvWtqMKWjoBsKwOSfO68YeYyaPYY7Nc02K0KtIAHrVK/MAIb+nbFasBZVl/gWlZpLkpBFH3iTLTkbenqwqXOgqhJoZ6KgixRTZ054= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783604598; c=relaxed/simple; bh=JjK8pa9skMKrbL9WvATZeCl7TfsvD3UbnhThFaSduHw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=KQ/qJLcH1AOsZl9M10B4mT4ED64TWORJvkfuK5ahnRoS9AKSKClhvq5cSl1dK6czA5nXIRhEqz25AIyaRUEGFQtaSthTK1p08To82SYgZT546IZG1c2p5UgxJftW6F0Pf7131Ki3NRsHIUDQJC00rTOpNJ75bSy55Cmwoy21EVc= 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=Oo74xFEA; 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="Oo74xFEA" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1783604595; bh=JjK8pa9skMKrbL9WvATZeCl7TfsvD3UbnhThFaSduHw=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Oo74xFEAKXvPWGP3/+eQ4nCvUW6EsFb/gGnXKbJntv81xc4nNbyEQPur2lB1hffb7 1slQ5IjdEfq7jDb0axottcdfez3S0hBpepF9hytZB/+rxvKXVDX6SVNM54Ia3e0Qpm kQvxPD90rn8mzmNo6mdxNg6nKtFP9nOUQRa20elHyPX9vJjjVKpKnTef29f255ePYu C7rZgmTGguXbXZzQjS5tI/v4+IVUFNkhMwRikTT3sl2t3EHm/sqN4xfPDBr5lMnjR2 BU74+umkYY3yIgrgrmJ4kmSf24cqrznb8/WihAIJI2NNnE4/iQ75Fy/oLPneJ8QZhX Pi6yo8Z/9xaoA== Received: from yukiji.home (unknown [100.64.0.131]) (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: laeyraud) by bali.collaboradmins.com (Postfix) with ESMTPSA id 4D99E17E0E04; Thu, 09 Jul 2026 15:43:14 +0200 (CEST) From: Louis-Alexis Eyraud Date: Thu, 09 Jul 2026 15:42:56 +0200 Subject: [PATCH v2 16/18] clk: mediatek: Add MT8189 i2c clock support Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260709-mt8189-clocks-system-base-v2-16-2926da3db6cf@collabora.com> References: <20260709-mt8189-clocks-system-base-v2-0-2926da3db6cf@collabora.com> In-Reply-To: <20260709-mt8189-clocks-system-base-v2-0-2926da3db6cf@collabora.com> To: Michael Turquette , Stephen Boyd , Brian Masney , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Chun-Jie Chen , Philipp Zabel , Edward-JW Yang , Richard Cochran Cc: kernel@collabora.com, 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, Irving-CH Lin , Louis-Alexis Eyraud X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1783604575; l=6586; i=louisalexis.eyraud@collabora.com; s=20250113; h=from:subject:message-id; bh=JjK8pa9skMKrbL9WvATZeCl7TfsvD3UbnhThFaSduHw=; b=A9aYprP1J5iZ0n9fyMxZ4RTaKMKjzUvj0Iu1C9lr1zG7ih4ONCx3x4Dub2k6KPEayxlJK1AQ/ hdzYAQwhM3qBSSFmPraoObgObMjRpuYbZQqvs7rZEP19g+T1j/j8aQm X-Developer-Key: i=louisalexis.eyraud@collabora.com; a=ed25519; pk=CHFBDB2Kqh4EHc6JIqFn69GhxJJAzc0Zr4e8QxtumuM= Add support for the MT8189 i2c clock controller, which provides clock gate control for i2c. Co-developed-by: Irving-CH Lin Signed-off-by: Irving-CH Lin Co-developed-by: AngeloGioacchino Del Regno Signed-off-by: AngeloGioacchino Del Regno Signed-off-by: Louis-Alexis Eyraud --- drivers/clk/mediatek/Kconfig | 13 ++++ drivers/clk/mediatek/Makefile | 1 + drivers/clk/mediatek/clk-mt8189-iic.c | 122 ++++++++++++++++++++++++++++++++++ 3 files changed, 136 insertions(+) diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig index 245d3b83b5d3..bba631138b07 100644 --- a/drivers/clk/mediatek/Kconfig +++ b/drivers/clk/mediatek/Kconfig @@ -859,6 +859,19 @@ config COMMON_CLK_MT8189_DVFSRC 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_MT8189_IIC + tristate "Clock driver for MediaTek MT8189 iic" + depends on COMMON_CLK_MT8189 + default COMMON_CLK_MT8189 + help + Enable this option to support the clock framework for MediaTek MT8189 + integrated circuits (iic). This driver is responsible for managing + clock sources, dividers, and gates specifically designed for MT8189 + SoCs. Enabling this driver ensures that the system can correctly + manage clock frequencies and power for various components within + the MT8189 chipset, improving the overall performance and power + efficiency of the device. + 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 4dbfc9ac83ba..bfc075023d9b 100644 --- a/drivers/clk/mediatek/Makefile +++ b/drivers/clk/mediatek/Makefile @@ -128,6 +128,7 @@ obj-$(CONFIG_COMMON_CLK_MT8189) += clk-mt8189-apmixedsys.o clk-mt8189-topckgen.o obj-$(CONFIG_COMMON_CLK_MT8189_BUS) += clk-mt8189-bus.o obj-$(CONFIG_COMMON_CLK_MT8189_DBGAO) += clk-mt8189-dbgao.o obj-$(CONFIG_COMMON_CLK_MT8189_DVFSRC) += clk-mt8189-dvfsrc.o +obj-$(CONFIG_COMMON_CLK_MT8189_IIC) += clk-mt8189-iic.o obj-$(CONFIG_COMMON_CLK_MT8192) += clk-mt8192-apmixedsys.o clk-mt8192.o obj-$(CONFIG_COMMON_CLK_MT8192_AUDSYS) += clk-mt8192-aud.o obj-$(CONFIG_COMMON_CLK_MT8192_CAMSYS) += clk-mt8192-cam.o diff --git a/drivers/clk/mediatek/clk-mt8189-iic.c b/drivers/clk/mediatek/clk-mt8189-iic.c new file mode 100644 index 000000000000..80a01706791a --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8189-iic.c @@ -0,0 +1,122 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2025-2026 MediaTek Inc. + * Qiqi Wang + * Irving-CH Lin + * Copyright (C) 2026 Collabora Ltd. + * AngeloGioacchino Del Regno + * Louis-Alexis Eyraud + */ + +#include +#include +#include +#include + +#include "clk-mtk.h" +#include "clk-gate.h" + +#include + +static const struct mtk_gate_regs impe_cg_regs = { + .set_ofs = 0x8, + .clr_ofs = 0x4, + .sta_ofs = 0x0, +}; + +#define GATE_IMPE(_id, _name, _parent, _shift) \ + GATE_MTK_FLAGS(_id, _name, _parent, &impe_cg_regs, _shift, \ + &mtk_clk_gate_ops_setclr, CLK_OPS_PARENT_ENABLE) + +static const struct mtk_gate impe_clks[] = { + GATE_IMPE(CLK_IMPE_I2C0, "impe_i2c0", "i2c_sel", 0), + GATE_IMPE(CLK_IMPE_I2C1, "impe_i2c1", "i2c_sel", 1), +}; + +static const struct mtk_clk_desc impe_mcd = { + .clks = impe_clks, + .num_clks = ARRAY_SIZE(impe_clks), +}; + +static const struct mtk_gate_regs impen_cg_regs = { + .set_ofs = 0x8, + .clr_ofs = 0x4, + .sta_ofs = 0x0, +}; + +#define GATE_IMPEN(_id, _name, _parent, _shift) \ + GATE_MTK_FLAGS(_id, _name, _parent, &impen_cg_regs, _shift, \ + &mtk_clk_gate_ops_setclr, CLK_OPS_PARENT_ENABLE) + +static const struct mtk_gate impen_clks[] = { + GATE_IMPEN(CLK_IMPEN_I2C7, "impen_i2c7", "i2c_sel", 0), + GATE_IMPEN(CLK_IMPEN_I2C8, "impen_i2c8", "i2c_sel", 1), +}; + +static const struct mtk_clk_desc impen_mcd = { + .clks = impen_clks, + .num_clks = ARRAY_SIZE(impen_clks), +}; + +static const struct mtk_gate_regs imps_cg_regs = { + .set_ofs = 0x8, + .clr_ofs = 0x4, + .sta_ofs = 0x0, +}; + +#define GATE_IMPS(_id, _name, _parent, _shift) \ + GATE_MTK_FLAGS(_id, _name, _parent, &imps_cg_regs, _shift, \ + &mtk_clk_gate_ops_setclr, CLK_OPS_PARENT_ENABLE) + +static const struct mtk_gate imps_clks[] = { + GATE_IMPS(CLK_IMPS_I2C3, "imps_i2c3", "i2c_sel", 0), + GATE_IMPS(CLK_IMPS_I2C4, "imps_i2c4", "i2c_sel", 1), + GATE_IMPS(CLK_IMPS_I2C5, "imps_i2c5", "i2c_sel", 2), + GATE_IMPS(CLK_IMPS_I2C6, "imps_i2c6", "i2c_sel", 3), +}; + +static const struct mtk_clk_desc imps_mcd = { + .clks = imps_clks, + .num_clks = ARRAY_SIZE(imps_clks), +}; + +static const struct mtk_gate_regs impws_cg_regs = { + .set_ofs = 0x8, + .clr_ofs = 0x4, + .sta_ofs = 0x0, +}; + +#define GATE_IMPWS(_id, _name, _parent, _shift) \ + GATE_MTK_FLAGS(_id, _name, _parent, &impws_cg_regs, _shift, \ + &mtk_clk_gate_ops_setclr, CLK_OPS_PARENT_ENABLE) + +static const struct mtk_gate impws_clks[] = { + GATE_IMPWS(CLK_IMPWS_I2C2, "impws_i2c2", "i2c_sel", 0), +}; + +static const struct mtk_clk_desc impws_mcd = { + .clks = impws_clks, + .num_clks = ARRAY_SIZE(impws_clks), +}; + +static const struct of_device_id of_match_clk_mt8189_iic[] = { + { .compatible = "mediatek,mt8189-iic-wrap-e", .data = &impe_mcd }, + { .compatible = "mediatek,mt8189-iic-wrap-en", .data = &impen_mcd }, + { .compatible = "mediatek,mt8189-iic-wrap-s", .data = &imps_mcd }, + { .compatible = "mediatek,mt8189-iic-wrap-ws", .data = &impws_mcd }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_match_clk_mt8189_iic); + +static struct platform_driver clk_mt8189_iic_drv = { + .probe = mtk_clk_simple_probe, + .remove = mtk_clk_simple_remove, + .driver = { + .name = "clk-mt8189-iic", + .of_match_table = of_match_clk_mt8189_iic, + }, +}; +module_platform_driver(clk_mt8189_iic_drv); + +MODULE_DESCRIPTION("MediaTek MT8189 iic clocks driver"); +MODULE_LICENSE("GPL"); -- 2.55.0