clk: mediatek: add clock support for MT7622 SoC

Add all supported clocks exported from every susbystem found on MT7622 SoC
such as topckgen, apmixedsys, infracfg, pericfg , pciessys, ssusbsys,
ethsys and audsys.

Signed-off-by: Chen Zhong <chen.zhong@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

6 files changed, 1334 insertions, 0 deletions

diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index 300dbb551bf7..59dc0aad553c 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -132,6 +132,36 @@ config COMMON_CLK_MT6797_VENCSYS
        ---help---
          This driver supports Mediatek MT6797 vencsys clocks.
 
+config COMMON_CLK_MT7622
+	bool "Clock driver for MediaTek MT7622"
+	depends on ARCH_MEDIATEK || COMPILE_TEST
+	select COMMON_CLK_MEDIATEK
+	default ARCH_MEDIATEK
+	---help---
+	  This driver supports MediaTek MT7622 basic clocks and clocks
+	  required for various periperals found on MediaTek.
+
+config COMMON_CLK_MT7622_ETHSYS
+	bool "Clock driver for MediaTek MT7622 ETHSYS"
+	depends on COMMON_CLK_MT7622
+	---help---
+	  This driver add support for clocks for Ethernet and SGMII
+	  required on MediaTek MT7622 SoC.
+
+config COMMON_CLK_MT7622_HIFSYS
+	bool "Clock driver for MediaTek MT7622 HIFSYS"
+	depends on COMMON_CLK_MT7622
+	---help---
+	  This driver supports MediaTek MT7622 HIFSYS clocks providing
+	  to PCI-E and USB.
+
+config COMMON_CLK_MT7622_AUDSYS
+	bool "Clock driver for MediaTek MT7622 AUDSYS"
+	depends on COMMON_CLK_MT7622
+	---help---
+	  This driver supports MediaTek MT7622 AUDSYS clocks providing
+	  to audio consumers such as I2S and TDM.
+
 config COMMON_CLK_MT8135
 	bool "Clock driver for Mediatek MT8135"
 	depends on (ARCH_MEDIATEK && ARM) || COMPILE_TEST
diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index a4e5c47c73a4..de8c3d0bb4ca 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -20,5 +20,9 @@ obj-$(CONFIG_COMMON_CLK_MT2712_MFGCFG) += clk-mt2712-mfg.o
 obj-$(CONFIG_COMMON_CLK_MT2712_MMSYS) += clk-mt2712-mm.o
 obj-$(CONFIG_COMMON_CLK_MT2712_VDECSYS) += clk-mt2712-vdec.o
 obj-$(CONFIG_COMMON_CLK_MT2712_VENCSYS) += clk-mt2712-venc.o
+obj-$(CONFIG_COMMON_CLK_MT7622) += clk-mt7622.o
+obj-$(CONFIG_COMMON_CLK_MT7622_ETHSYS) += clk-mt7622-eth.o
+obj-$(CONFIG_COMMON_CLK_MT7622_HIFSYS) += clk-mt7622-hif.o
+obj-$(CONFIG_COMMON_CLK_MT7622_AUDSYS) += clk-mt7622-aud.o
 obj-$(CONFIG_COMMON_CLK_MT8135) += clk-mt8135.o
 obj-$(CONFIG_COMMON_CLK_MT8173) += clk-mt8173.o
diff --git a/drivers/clk/mediatek/clk-mt7622-aud.c b/drivers/clk/mediatek/clk-mt7622-aud.c
new file mode 100644
index 000000000000..fad7d9fc53ba
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt7622-aud.c
@@ -0,0 +1,195 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: Chen Zhong <chen.zhong@mediatek.com>
+ *	   Sean Wang <sean.wang@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt7622-clk.h>
+
+#define GATE_AUDIO0(_id, _name, _parent, _shift) {	\
+		.id = _id,				\
+		.name = _name,				\
+		.parent_name = _parent,			\
+		.regs = &audio0_cg_regs,			\
+		.shift = _shift,			\
+		.ops = &mtk_clk_gate_ops_no_setclr,	\
+	}
+
+#define GATE_AUDIO1(_id, _name, _parent, _shift) {	\
+		.id = _id,				\
+		.name = _name,				\
+		.parent_name = _parent,			\
+		.regs = &audio1_cg_regs,			\
+		.shift = _shift,			\
+		.ops = &mtk_clk_gate_ops_no_setclr,	\
+	}
+
+#define GATE_AUDIO2(_id, _name, _parent, _shift) {	\
+		.id = _id,				\
+		.name = _name,				\
+		.parent_name = _parent,			\
+		.regs = &audio2_cg_regs,			\
+		.shift = _shift,			\
+		.ops = &mtk_clk_gate_ops_no_setclr,	\
+	}
+
+#define GATE_AUDIO3(_id, _name, _parent, _shift) {	\
+		.id = _id,				\
+		.name = _name,				\
+		.parent_name = _parent,			\
+		.regs = &audio3_cg_regs,			\
+		.shift = _shift,			\
+		.ops = &mtk_clk_gate_ops_no_setclr,	\
+	}
+
+static const struct mtk_gate_regs audio0_cg_regs = {
+	.set_ofs = 0x0,
+	.clr_ofs = 0x0,
+	.sta_ofs = 0x0,
+};
+
+static const struct mtk_gate_regs audio1_cg_regs = {
+	.set_ofs = 0x10,
+	.clr_ofs = 0x10,
+	.sta_ofs = 0x10,
+};
+
+static const struct mtk_gate_regs audio2_cg_regs = {
+	.set_ofs = 0x14,
+	.clr_ofs = 0x14,
+	.sta_ofs = 0x14,
+};
+
+static const struct mtk_gate_regs audio3_cg_regs = {
+	.set_ofs = 0x634,
+	.clr_ofs = 0x634,
+	.sta_ofs = 0x634,
+};
+
+static const struct mtk_gate audio_clks[] = {
+	/* AUDIO0 */
+	GATE_AUDIO0(CLK_AUDIO_AFE, "audio_afe", "rtc", 2),
+	GATE_AUDIO0(CLK_AUDIO_HDMI, "audio_hdmi", "apll1_ck_sel", 20),
+	GATE_AUDIO0(CLK_AUDIO_SPDF, "audio_spdf", "apll1_ck_sel", 21),
+	GATE_AUDIO0(CLK_AUDIO_APLL, "audio_apll", "apll1_ck_sel", 23),
+	/* AUDIO1 */
+	GATE_AUDIO1(CLK_AUDIO_I2SIN1, "audio_i2sin1", "a1sys_hp_sel", 0),
+	GATE_AUDIO1(CLK_AUDIO_I2SIN2, "audio_i2sin2", "a1sys_hp_sel", 1),
+	GATE_AUDIO1(CLK_AUDIO_I2SIN3, "audio_i2sin3", "a1sys_hp_sel", 2),
+	GATE_AUDIO1(CLK_AUDIO_I2SIN4, "audio_i2sin4", "a1sys_hp_sel", 3),
+	GATE_AUDIO1(CLK_AUDIO_I2SO1, "audio_i2so1", "a1sys_hp_sel", 6),
+	GATE_AUDIO1(CLK_AUDIO_I2SO2, "audio_i2so2", "a1sys_hp_sel", 7),
+	GATE_AUDIO1(CLK_AUDIO_I2SO3, "audio_i2so3", "a1sys_hp_sel", 8),
+	GATE_AUDIO1(CLK_AUDIO_I2SO4, "audio_i2so4", "a1sys_hp_sel", 9),
+	GATE_AUDIO1(CLK_AUDIO_ASRCI1, "audio_asrci1", "asm_h_sel", 12),
+	GATE_AUDIO1(CLK_AUDIO_ASRCI2, "audio_asrci2", "asm_h_sel", 13),
+	GATE_AUDIO1(CLK_AUDIO_ASRCO1, "audio_asrco1", "asm_h_sel", 14),
+	GATE_AUDIO1(CLK_AUDIO_ASRCO2, "audio_asrco2", "asm_h_sel", 15),
+	GATE_AUDIO1(CLK_AUDIO_INTDIR, "audio_intdir", "intdir_sel", 20),
+	GATE_AUDIO1(CLK_AUDIO_A1SYS, "audio_a1sys", "a1sys_hp_sel", 21),
+	GATE_AUDIO1(CLK_AUDIO_A2SYS, "audio_a2sys", "a2sys_hp_sel", 22),
+	/* AUDIO2 */
+	GATE_AUDIO2(CLK_AUDIO_UL1, "audio_ul1", "a1sys_hp_sel", 0),
+	GATE_AUDIO2(CLK_AUDIO_UL2, "audio_ul2", "a1sys_hp_sel", 1),
+	GATE_AUDIO2(CLK_AUDIO_UL3, "audio_ul3", "a1sys_hp_sel", 2),
+	GATE_AUDIO2(CLK_AUDIO_UL4, "audio_ul4", "a1sys_hp_sel", 3),
+	GATE_AUDIO2(CLK_AUDIO_UL5, "audio_ul5", "a1sys_hp_sel", 4),
+	GATE_AUDIO2(CLK_AUDIO_UL6, "audio_ul6", "a1sys_hp_sel", 5),
+	GATE_AUDIO2(CLK_AUDIO_DL1, "audio_dl1", "a1sys_hp_sel", 6),
+	GATE_AUDIO2(CLK_AUDIO_DL2, "audio_dl2", "a1sys_hp_sel", 7),
+	GATE_AUDIO2(CLK_AUDIO_DL3, "audio_dl3", "a1sys_hp_sel", 8),
+	GATE_AUDIO2(CLK_AUDIO_DL4, "audio_dl4", "a1sys_hp_sel", 9),
+	GATE_AUDIO2(CLK_AUDIO_DL5, "audio_dl5", "a1sys_hp_sel", 10),
+	GATE_AUDIO2(CLK_AUDIO_DL6, "audio_dl6", "a1sys_hp_sel", 11),
+	GATE_AUDIO2(CLK_AUDIO_DLMCH, "audio_dlmch", "a1sys_hp_sel", 12),
+	GATE_AUDIO2(CLK_AUDIO_ARB1, "audio_arb1", "a1sys_hp_sel", 13),
+	GATE_AUDIO2(CLK_AUDIO_AWB, "audio_awb", "a1sys_hp_sel", 14),
+	GATE_AUDIO2(CLK_AUDIO_AWB2, "audio_awb2", "a1sys_hp_sel", 15),
+	GATE_AUDIO2(CLK_AUDIO_DAI, "audio_dai", "a1sys_hp_sel", 16),
+	GATE_AUDIO2(CLK_AUDIO_MOD, "audio_mod", "a1sys_hp_sel", 17),
+	/* AUDIO3 */
+	GATE_AUDIO3(CLK_AUDIO_ASRCI3, "audio_asrci3", "asm_h_sel", 2),
+	GATE_AUDIO3(CLK_AUDIO_ASRCI4, "audio_asrci4", "asm_h_sel", 3),
+	GATE_AUDIO3(CLK_AUDIO_ASRCO3, "audio_asrco3", "asm_h_sel", 6),
+	GATE_AUDIO3(CLK_AUDIO_ASRCO4, "audio_asrco4", "asm_h_sel", 7),
+	GATE_AUDIO3(CLK_AUDIO_MEM_ASRC1, "audio_mem_asrc1", "asm_h_sel", 10),
+	GATE_AUDIO3(CLK_AUDIO_MEM_ASRC2, "audio_mem_asrc2", "asm_h_sel", 11),
+	GATE_AUDIO3(CLK_AUDIO_MEM_ASRC3, "audio_mem_asrc3", "asm_h_sel", 12),
+	GATE_AUDIO3(CLK_AUDIO_MEM_ASRC4, "audio_mem_asrc4", "asm_h_sel", 13),
+	GATE_AUDIO3(CLK_AUDIO_MEM_ASRC5, "audio_mem_asrc5", "asm_h_sel", 14),
+};
+
+static int clk_mt7622_audiosys_init(struct platform_device *pdev)
+{
+	struct clk_onecell_data *clk_data;
+	struct device_node *node = pdev->dev.of_node;
+	int r;
+
+	clk_data = mtk_alloc_clk_data(CLK_AUDIO_NR_CLK);
+
+	mtk_clk_register_gates(node, audio_clks, ARRAY_SIZE(audio_clks),
+			       clk_data);
+
+	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+	if (r)
+		dev_err(&pdev->dev,
+			"could not register clock provider: %s: %d\n",
+			pdev->name, r);
+
+	return r;
+}
+
+static const struct of_device_id of_match_clk_mt7622_aud[] = {
+	{
+		.compatible = "mediatek,mt7622-audsys",
+		.data = clk_mt7622_audiosys_init,
+	}, {
+		/* sentinel */
+	}
+};
+
+static int clk_mt7622_aud_probe(struct platform_device *pdev)
+{
+	int (*clk_init)(struct platform_device *);
+	int r;
+
+	clk_init = of_device_get_match_data(&pdev->dev);
+	if (!clk_init)
+		return -EINVAL;
+
+	r = clk_init(pdev);
+	if (r)
+		dev_err(&pdev->dev,
+			"could not register clock provider: %s: %d\n",
+			pdev->name, r);
+
+	return r;
+}
+
+static struct platform_driver clk_mt7622_aud_drv = {
+	.probe = clk_mt7622_aud_probe,
+	.driver = {
+		.name = "clk-mt7622-aud",
+		.of_match_table = of_match_clk_mt7622_aud,
+	},
+};
+
+builtin_platform_driver(clk_mt7622_aud_drv);
diff --git a/drivers/clk/mediatek/clk-mt7622-eth.c b/drivers/clk/mediatek/clk-mt7622-eth.c
new file mode 100644
index 000000000000..6328127bbb3c
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt7622-eth.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: Chen Zhong <chen.zhong@mediatek.com>
+ *	   Sean Wang <sean.wang@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt7622-clk.h>
+
+#define GATE_ETH(_id, _name, _parent, _shift) {	\
+		.id = _id,				\
+		.name = _name,				\
+		.parent_name = _parent,			\
+		.regs = &eth_cg_regs,			\
+		.shift = _shift,			\
+		.ops = &mtk_clk_gate_ops_no_setclr_inv,	\
+	}
+
+static const struct mtk_gate_regs eth_cg_regs = {
+	.set_ofs = 0x30,
+	.clr_ofs = 0x30,
+	.sta_ofs = 0x30,
+};
+
+static const struct mtk_gate eth_clks[] = {
+	GATE_ETH(CLK_ETH_HSDMA_EN, "eth_hsdma_en", "eth_sel", 5),
+	GATE_ETH(CLK_ETH_ESW_EN, "eth_esw_en", "eth_500m", 6),
+	GATE_ETH(CLK_ETH_GP2_EN, "eth_gp2_en", "txclk_src_pre", 7),
+	GATE_ETH(CLK_ETH_GP1_EN, "eth_gp1_en", "txclk_src_pre", 8),
+	GATE_ETH(CLK_ETH_GP0_EN, "eth_gp0_en", "txclk_src_pre", 9),
+};
+
+static const struct mtk_gate_regs sgmii_cg_regs = {
+	.set_ofs = 0xE4,
+	.clr_ofs = 0xE4,
+	.sta_ofs = 0xE4,
+};
+
+#define GATE_SGMII(_id, _name, _parent, _shift) {	\
+		.id = _id,				\
+		.name = _name,				\
+		.parent_name = _parent,			\
+		.regs = &sgmii_cg_regs,			\
+		.shift = _shift,			\
+		.ops = &mtk_clk_gate_ops_no_setclr_inv,	\
+	}
+
+static const struct mtk_gate sgmii_clks[] = {
+	GATE_SGMII(CLK_SGMII_TX250M_EN, "sgmii_tx250m_en",
+		   "ssusb_tx250m", 2),
+	GATE_SGMII(CLK_SGMII_RX250M_EN, "sgmii_rx250m_en",
+		   "ssusb_eq_rx250m", 3),
+	GATE_SGMII(CLK_SGMII_CDR_REF, "sgmii_cdr_ref",
+		   "ssusb_cdr_ref", 4),
+	GATE_SGMII(CLK_SGMII_CDR_FB, "sgmii_cdr_fb",
+		   "ssusb_cdr_fb", 5),
+};
+
+static int clk_mt7622_ethsys_init(struct platform_device *pdev)
+{
+	struct clk_onecell_data *clk_data;
+	struct device_node *node = pdev->dev.of_node;
+	int r;
+
+	clk_data = mtk_alloc_clk_data(CLK_ETH_NR_CLK);
+
+	mtk_clk_register_gates(node, eth_clks, ARRAY_SIZE(eth_clks),
+			       clk_data);
+
+	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+	if (r)
+		dev_err(&pdev->dev,
+			"could not register clock provider: %s: %d\n",
+			pdev->name, r);
+
+	mtk_register_reset_controller(node, 1, 0x34);
+
+	return r;
+}
+
+static int clk_mt7622_sgmiisys_init(struct platform_device *pdev)
+{
+	struct clk_onecell_data *clk_data;
+	struct device_node *node = pdev->dev.of_node;
+	int r;
+
+	clk_data = mtk_alloc_clk_data(CLK_SGMII_NR_CLK);
+
+	mtk_clk_register_gates(node, sgmii_clks, ARRAY_SIZE(sgmii_clks),
+			       clk_data);
+
+	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+	if (r)
+		dev_err(&pdev->dev,
+			"could not register clock provider: %s: %d\n",
+			pdev->name, r);
+
+	return r;
+}
+
+static const struct of_device_id of_match_clk_mt7622_eth[] = {
+	{
+		.compatible = "mediatek,mt7622-ethsys",
+		.data = clk_mt7622_ethsys_init,
+	}, {
+		.compatible = "mediatek,mt7622-sgmiisys",
+		.data = clk_mt7622_sgmiisys_init,
+	}, {
+		/* sentinel */
+	}
+};
+
+static int clk_mt7622_eth_probe(struct platform_device *pdev)
+{
+	int (*clk_init)(struct platform_device *);
+	int r;
+
+	clk_init = of_device_get_match_data(&pdev->dev);
+	if (!clk_init)
+		return -EINVAL;
+
+	r = clk_init(pdev);
+	if (r)
+		dev_err(&pdev->dev,
+			"could not register clock provider: %s: %d\n",
+			pdev->name, r);
+
+	return r;
+}
+
+static struct platform_driver clk_mt7622_eth_drv = {
+	.probe = clk_mt7622_eth_probe,
+	.driver = {
+		.name = "clk-mt7622-eth",
+		.of_match_table = of_match_clk_mt7622_eth,
+	},
+};
+
+builtin_platform_driver(clk_mt7622_eth_drv);
diff --git a/drivers/clk/mediatek/clk-mt7622-hif.c b/drivers/clk/mediatek/clk-mt7622-hif.c
new file mode 100644
index 000000000000..a6e8534276c6
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt7622-hif.c
@@ -0,0 +1,169 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: Chen Zhong <chen.zhong@mediatek.com>
+ *	   Sean Wang <sean.wang@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt7622-clk.h>
+
+#define GATE_PCIE(_id, _name, _parent, _shift) {	\
+		.id = _id,				\
+		.name = _name,				\
+		.parent_name = _parent,			\
+		.regs = &pcie_cg_regs,			\
+		.shift = _shift,			\
+		.ops = &mtk_clk_gate_ops_no_setclr_inv,	\
+	}
+
+#define GATE_SSUSB(_id, _name, _parent, _shift) {	\
+		.id = _id,				\
+		.name = _name,				\
+		.parent_name = _parent,			\
+		.regs = &ssusb_cg_regs,			\
+		.shift = _shift,			\
+		.ops = &mtk_clk_gate_ops_no_setclr_inv,	\
+	}
+
+static const struct mtk_gate_regs pcie_cg_regs = {
+	.set_ofs = 0x30,
+	.clr_ofs = 0x30,
+	.sta_ofs = 0x30,
+};
+
+static const struct mtk_gate_regs ssusb_cg_regs = {
+	.set_ofs = 0x30,
+	.clr_ofs = 0x30,
+	.sta_ofs = 0x30,
+};
+
+static const struct mtk_gate ssusb_clks[] = {
+	GATE_SSUSB(CLK_SSUSB_U2_PHY_1P_EN, "ssusb_u2_phy_1p",
+		   "to_u2_phy_1p", 0),
+	GATE_SSUSB(CLK_SSUSB_U2_PHY_EN, "ssusb_u2_phy_en", "to_u2_phy", 1),
+	GATE_SSUSB(CLK_SSUSB_REF_EN, "ssusb_ref_en", "to_usb3_ref", 5),
+	GATE_SSUSB(CLK_SSUSB_SYS_EN, "ssusb_sys_en", "to_usb3_sys", 6),
+	GATE_SSUSB(CLK_SSUSB_MCU_EN, "ssusb_mcu_en", "axi_sel", 7),
+	GATE_SSUSB(CLK_SSUSB_DMA_EN, "ssusb_dma_en", "hif_sel", 8),
+};
+
+static const struct mtk_gate pcie_clks[] = {
+	GATE_PCIE(CLK_PCIE_P1_AUX_EN, "pcie_p1_aux_en", "p1_1mhz", 12),
+	GATE_PCIE(CLK_PCIE_P1_OBFF_EN, "pcie_p1_obff_en", "free_run_4mhz", 13),
+	GATE_PCIE(CLK_PCIE_P1_AHB_EN, "pcie_p1_ahb_en", "axi_sel", 14),
+	GATE_PCIE(CLK_PCIE_P1_AXI_EN, "pcie_p1_axi_en", "hif_sel", 15),
+	GATE_PCIE(CLK_PCIE_P1_MAC_EN, "pcie_p1_mac_en", "pcie1_mac_en", 16),
+	GATE_PCIE(CLK_PCIE_P1_PIPE_EN, "pcie_p1_pipe_en", "pcie1_pipe_en", 17),
+	GATE_PCIE(CLK_PCIE_P0_AUX_EN, "pcie_p0_aux_en", "p0_1mhz", 18),
+	GATE_PCIE(CLK_PCIE_P0_OBFF_EN, "pcie_p0_obff_en", "free_run_4mhz", 19),
+	GATE_PCIE(CLK_PCIE_P0_AHB_EN, "pcie_p0_ahb_en", "axi_sel", 20),
+	GATE_PCIE(CLK_PCIE_P0_AXI_EN, "pcie_p0_axi_en", "hif_sel", 21),
+	GATE_PCIE(CLK_PCIE_P0_MAC_EN, "pcie_p0_mac_en", "pcie0_mac_en", 22),
+	GATE_PCIE(CLK_PCIE_P0_PIPE_EN, "pcie_p0_pipe_en", "pcie0_pipe_en", 23),
+	GATE_PCIE(CLK_SATA_AHB_EN, "sata_ahb_en", "axi_sel", 26),
+	GATE_PCIE(CLK_SATA_AXI_EN, "sata_axi_en", "hif_sel", 27),
+	GATE_PCIE(CLK_SATA_ASIC_EN, "sata_asic_en", "sata_asic", 28),
+	GATE_PCIE(CLK_SATA_RBC_EN, "sata_rbc_en", "sata_rbc", 29),
+	GATE_PCIE(CLK_SATA_PM_EN, "sata_pm_en", "univpll2_d4", 30),
+};
+
+static int clk_mt7622_ssusbsys_init(struct platform_device *pdev)
+{
+	struct clk_onecell_data *clk_data;
+	struct device_node *node = pdev->dev.of_node;
+	int r;
+
+	clk_data = mtk_alloc_clk_data(CLK_SSUSB_NR_CLK);
+
+	mtk_clk_register_gates(node, ssusb_clks, ARRAY_SIZE(ssusb_clks),
+			       clk_data);
+
+	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+	if (r)
+		dev_err(&pdev->dev,
+			"could not register clock provider: %s: %d\n",
+			pdev->name, r);
+
+	mtk_register_reset_controller(node, 1, 0x34);
+
+	return r;
+}
+
+static int clk_mt7622_pciesys_init(struct platform_device *pdev)
+{
+	struct clk_onecell_data *clk_data;
+	struct device_node *node = pdev->dev.of_node;
+	int r;
+
+	clk_data = mtk_alloc_clk_data(CLK_PCIE_NR_CLK);
+
+	mtk_clk_register_gates(node, pcie_clks, ARRAY_SIZE(pcie_clks),
+			       clk_data);
+
+	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+	if (r)
+		dev_err(&pdev->dev,
+			"could not register clock provider: %s: %d\n",
+			pdev->name, r);
+
+	mtk_register_reset_controller(node, 1, 0x34);
+
+	return r;
+}
+
+static const struct of_device_id of_match_clk_mt7622_hif[] = {
+	{
+		.compatible = "mediatek,mt7622-pciesys",
+		.data = clk_mt7622_pciesys_init,
+	}, {
+		.compatible = "mediatek,mt7622-ssusbsys",
+		.data = clk_mt7622_ssusbsys_init,
+	}, {
+		/* sentinel */
+	}
+};
+
+static int clk_mt7622_hif_probe(struct platform_device *pdev)
+{
+	int (*clk_init)(struct platform_device *);
+	int r;
+
+	clk_init = of_device_get_match_data(&pdev->dev);
+	if (!clk_init)
+		return -EINVAL;
+
+	r = clk_init(pdev);
+	if (r)
+		dev_err(&pdev->dev,
+			"could not register clock provider: %s: %d\n",
+			pdev->name, r);
+
+	return r;
+}
+
+static struct platform_driver clk_mt7622_hif_drv = {
+	.probe = clk_mt7622_hif_probe,
+	.driver = {
+		.name = "clk-mt7622-hif",
+		.of_match_table = of_match_clk_mt7622_hif,
+	},
+};
+
+builtin_platform_driver(clk_mt7622_hif_drv);
diff --git a/drivers/clk/mediatek/clk-mt7622.c b/drivers/clk/mediatek/clk-mt7622.c
new file mode 100644
index 000000000000..92f7e32770c6
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt7622.c
@@ -0,0 +1,780 @@
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ * Author: Chen Zhong <chen.zhong@mediatek.com>
+ *	   Sean Wang <sean.wang@mediatek.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+#include "clk-cpumux.h"
+
+#include <dt-bindings/clock/mt7622-clk.h>
+#include <linux/clk.h> /* for consumer */
+
+#define MT7622_PLL_FMAX		(2500UL * MHZ)
+#define CON0_MT7622_RST_BAR	BIT(27)
+
+#define PLL_xtal(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits,\
+			_pd_reg, _pd_shift, _tuner_reg, _pcw_reg,	\
+			_pcw_shift, _div_table, _parent_name) {		\
+		.id = _id,						\
+		.name = _name,						\
+		.reg = _reg,						\
+		.pwr_reg = _pwr_reg,					\
+		.en_mask = _en_mask,					\
+		.flags = _flags,					\
+		.rst_bar_mask = CON0_MT7622_RST_BAR,			\
+		.fmax = MT7622_PLL_FMAX,				\
+		.pcwbits = _pcwbits,					\
+		.pd_reg = _pd_reg,					\
+		.pd_shift = _pd_shift,					\
+		.tuner_reg = _tuner_reg,				\
+		.pcw_reg = _pcw_reg,					\
+		.pcw_shift = _pcw_shift,				\
+		.div_table = _div_table,				\
+		.parent_name = _parent_name,				\
+	}
+
+#define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits,	\
+			_pd_reg, _pd_shift, _tuner_reg, _pcw_reg,	\
+			_pcw_shift)					\
+	PLL_xtal(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits,\
+		 _pd_reg, _pd_shift, _tuner_reg, _pcw_reg, _pcw_shift,  \
+		 NULL, "clkxtal")
+
+#define GATE_APMIXED(_id, _name, _parent, _shift) {			\
+		.id = _id,						\
+		.name = _name,						\
+		.parent_name = _parent,					\
+		.regs = &apmixed_cg_regs,				\
+		.shift = _shift,					\
+		.ops = &mtk_clk_gate_ops_no_setclr_inv,			\
+	}
+
+#define GATE_INFRA(_id, _name, _parent, _shift) {			\
+		.id = _id,						\
+		.name = _name,						\
+		.parent_name = _parent,					\
+		.regs = &infra_cg_regs,					\
+		.shift = _shift,					\
+		.ops = &mtk_clk_gate_ops_setclr,			\
+	}
+
+#define GATE_TOP0(_id, _name, _parent, _shift) {			\
+		.id = _id,						\
+		.name = _name,						\
+		.parent_name = _parent,					\
+		.regs = &top0_cg_regs,					\
+		.shift = _shift,					\
+		.ops = &mtk_clk_gate_ops_no_setclr,			\
+	}
+
+#define GATE_TOP1(_id, _name, _parent, _shift) {			\
+		.id = _id,						\
+		.name = _name,						\
+		.parent_name = _parent,					\
+		.regs = &top1_cg_regs,					\
+		.shift = _shift,					\
+		.ops = &mtk_clk_gate_ops_no_setclr,			\
+	}
+
+#define GATE_PERI0(_id, _name, _parent, _shift) {			\
+		.id = _id,						\
+		.name = _name,						\
+		.parent_name = _parent,					\
+		.regs = &peri0_cg_regs,					\
+		.shift = _shift,					\
+		.ops = &mtk_clk_gate_ops_setclr,			\
+	}
+
+#define GATE_PERI1(_id, _name, _parent, _shift) {			\
+		.id = _id,						\
+		.name = _name,						\
+		.parent_name = _parent,					\
+		.regs = &peri1_cg_regs,					\
+		.shift = _shift,					\
+		.ops = &mtk_clk_gate_ops_setclr,			\
+	}
+
+static DEFINE_SPINLOCK(mt7622_clk_lock);
+
+static const char * const infra_mux1_parents[] = {
+	"clkxtal",
+	"armpll",
+	"main_core_en",
+	"armpll"
+};
+
+static const char * const axi_parents[] = {
+	"clkxtal",
+	"syspll1_d2",
+	"syspll_d5",
+	"syspll1_d4",
+	"univpll_d5",
+	"univpll2_d2",
+	"univpll_d7"
+};
+
+static const char * const mem_parents[] = {
+	"clkxtal",
+	"dmpll_ck"
+};
+
+static const char * const ddrphycfg_parents[] = {
+	"clkxtal",
+	"syspll1_d8"
+};
+
+static const char * const eth_parents[] = {
+	"clkxtal",
+	"syspll1_d2",
+	"univpll1_d2",
+	"syspll1_d4",
+	"univpll_d5",
+	"clk_null",
+	"univpll_d7"
+};
+
+static const char * const pwm_parents[] = {
+	"clkxtal",
+	"univpll2_d4"
+};
+
+static const char * const f10m_ref_parents[] = {
+	"clkxtal",
+	"syspll4_d16"
+};
+
+static const char * const nfi_infra_parents[] = {
+	"clkxtal",
+	"clkxtal",
+	"clkxtal",
+	"clkxtal",
+	"clkxtal",
+	"clkxtal",
+	"clkxtal",
+	"clkxtal",
+	"univpll2_d8",
+	"syspll1_d8",
+	"univpll1_d8",
+	"syspll4_d2",
+	"univpll2_d4",
+	"univpll3_d2",
+	"syspll1_d4"
+};
+
+static const char * const flash_parents[] = {
+	"clkxtal",
+	"univpll_d80_d4",
+	"syspll2_d8",
+	"syspll3_d4",
+	"univpll3_d4",
+	"univpll1_d8",
+	"syspll2_d4",
+	"univpll2_d4"
+};
+
+static const char * const uart_parents[] = {
+	"clkxtal",
+	"univpll2_d8"
+};
+
+static const char * const spi0_parents[] = {
+	"clkxtal",
+	"syspll3_d2",
+	"clkxtal",
+	"syspll2_d4",
+	"syspll4_d2",
+	"univpll2_d4",
+	"univpll1_d8",
+	"clkxtal"
+};
+
+static const char * const spi1_parents[] = {
+	"clkxtal",
+	"syspll3_d2",
+	"clkxtal",
+	"syspll4_d4",
+	"syspll4_d2",
+	"univpll2_d4",
+	"univpll1_d8",
+	"clkxtal"
+};
+
+static const char * const msdc30_0_parents[] = {
+	"clkxtal",
+	"univpll2_d16",
+	"univ48m"
+};
+
+static const char * const a1sys_hp_parents[] = {
+	"clkxtal",
+	"aud1pll_ck",
+	"aud2pll_ck",
+	"clkxtal"
+};
+
+static const char * const intdir_parents[] = {
+	"clkxtal",
+	"syspll_d2",
+	"univpll_d2",
+	"sgmiipll_ck"
+};
+
+static const char * const aud_intbus_parents[] = {
+	"clkxtal",
+	"syspll1_d4",
+	"syspll4_d2",
+	"syspll3_d2"
+};
+
+static const char * const pmicspi_parents[] = {
+	"clkxtal",
+	"clk_null",
+	"clk_null",
+	"clk_null",
+	"clk_null",
+	"univpll2_d16"
+};
+
+static const char * const atb_parents[] = {
+	"clkxtal",
+	"syspll1_d2",
+	"syspll_d5"
+};
+
+static const char * const audio_parents[] = {
+	"clkxtal",
+	"syspll3_d4",
+	"syspll4_d4",
+	"univpll1_d16"
+};
+
+static const char * const usb20_parents[] = {
+	"clkxtal",
+	"univpll3_d4",
+	"syspll1_d8",
+	"clkxtal"
+};
+
+static const char * const aud1_parents[] = {
+	"clkxtal",
+	"aud1pll_ck"
+};
+
+static const char * const aud2_parents[] = {
+	"clkxtal",
+	"aud2pll_ck"
+};
+
+static const char * const asm_l_parents[] = {
+	"clkxtal",
+	"syspll_d5",
+	"univpll2_d2",
+	"univpll2_d4"
+};
+
+static const char * const apll1_ck_parents[] = {
+	"aud1_sel",
+	"aud2_sel"
+};
+
+static const char * const peribus_ck_parents[] = {
+	"syspll1_d8",
+	"syspll1_d4"
+};
+
+static const struct mtk_gate_regs apmixed_cg_regs = {
+	.set_ofs = 0x8,
+	.clr_ofs = 0x8,
+	.sta_ofs = 0x8,
+};
+
+static const struct mtk_gate_regs infra_cg_regs = {
+	.set_ofs = 0x40,
+	.clr_ofs = 0x44,
+	.sta_ofs = 0x48,
+};
+
+static const struct mtk_gate_regs top0_cg_regs = {
+	.set_ofs = 0x120,
+	.clr_ofs = 0x120,
+	.sta_ofs = 0x120,
+};
+
+static const struct mtk_gate_regs top1_cg_regs = {
+	.set_ofs = 0x128,
+	.clr_ofs = 0x128,
+	.sta_ofs = 0x128,
+};
+
+static const struct mtk_gate_regs peri0_cg_regs = {
+	.set_ofs = 0x8,
+	.clr_ofs = 0x10,
+	.sta_ofs = 0x18,
+};
+
+static const struct mtk_gate_regs peri1_cg_regs = {
+	.set_ofs = 0xC,
+	.clr_ofs = 0x14,
+	.sta_ofs = 0x1C,
+};
+
+static const struct mtk_pll_data plls[] = {
+	PLL(CLK_APMIXED_ARMPLL, "armpll", 0x0200, 0x020C, 0x00000001,
+	    PLL_AO, 21, 0x0204, 24, 0, 0x0204, 0),
+	PLL(CLK_APMIXED_MAINPLL, "mainpll", 0x0210, 0x021C, 0x00000001,
+	    HAVE_RST_BAR, 21, 0x0214, 24, 0, 0x0214, 0),
+	PLL(CLK_APMIXED_UNIV2PLL, "univ2pll", 0x0220, 0x022C, 0x00000001,
+	    HAVE_RST_BAR, 7, 0x0224, 24, 0, 0x0224, 14),
+	PLL(CLK_APMIXED_ETH1PLL, "eth1pll", 0x0300, 0x0310, 0x00000001,
+	    0, 21, 0x0300, 1, 0, 0x0304, 0),
+	PLL(CLK_APMIXED_ETH2PLL, "eth2pll", 0x0314, 0x0320, 0x00000001,
+	    0, 21, 0x0314, 1, 0, 0x0318, 0),
+	PLL(CLK_APMIXED_AUD1PLL, "aud1pll", 0x0324, 0x0330, 0x00000001,
+	    0, 31, 0x0324, 1, 0, 0x0328, 0),
+	PLL(CLK_APMIXED_AUD2PLL, "aud2pll", 0x0334, 0x0340, 0x00000001,
+	    0, 31, 0x0334, 1, 0, 0x0338, 0),
+	PLL(CLK_APMIXED_TRGPLL, "trgpll", 0x0344, 0x0354, 0x00000001,
+	    0, 21, 0x0344, 1, 0, 0x0348, 0),
+	PLL(CLK_APMIXED_SGMIPLL, "sgmipll", 0x0358, 0x0368, 0x00000001,
+	    0, 21, 0x0358, 1, 0, 0x035C, 0),
+};
+
+static const struct mtk_gate apmixed_clks[] = {
+	GATE_APMIXED(CLK_APMIXED_MAIN_CORE_EN, "main_core_en", "mainpll", 5),
+};
+
+static const struct mtk_gate infra_clks[] = {
+	GATE_INFRA(CLK_INFRA_DBGCLK_PD, "infra_dbgclk_pd", "axi_sel", 0),
+	GATE_INFRA(CLK_INFRA_TRNG, "trng_ck", "axi_sel", 2),
+	GATE_INFRA(CLK_INFRA_AUDIO_PD, "infra_audio_pd", "aud_intbus_sel", 5),
+	GATE_INFRA(CLK_INFRA_IRRX_PD, "infra_irrx_pd", "irrx_sel", 16),
+	GATE_INFRA(CLK_INFRA_APXGPT_PD, "infra_apxgpt_pd", "f10m_ref_sel", 18),
+	GATE_INFRA(CLK_INFRA_PMIC_PD, "infra_pmic_pd", "pmicspi_sel", 22),
+};
+
+static const struct mtk_fixed_clk top_fixed_clks[] = {
+	FIXED_CLK(CLK_TOP_TO_U2_PHY, "to_u2_phy", "clkxtal",
+		  31250000),
+	FIXED_CLK(CLK_TOP_TO_U2_PHY_1P, "to_u2_phy_1p", "clkxtal",
+		  31250000),
+	FIXED_CLK(CLK_TOP_PCIE0_PIPE_EN, "pcie0_pipe_en", "clkxtal",
+		  125000000),
+	FIXED_CLK(CLK_TOP_PCIE1_PIPE_EN, "pcie1_pipe_en", "clkxtal",
+		  125000000),
+	FIXED_CLK(CLK_TOP_SSUSB_TX250M, "ssusb_tx250m", "clkxtal",
+		  250000000),
+	FIXED_CLK(CLK_TOP_SSUSB_EQ_RX250M, "ssusb_eq_rx250m", "clkxtal",
+		  250000000),
+	FIXED_CLK(CLK_TOP_SSUSB_CDR_REF, "ssusb_cdr_ref", "clkxtal",
+		  33333333),
+	FIXED_CLK(CLK_TOP_SSUSB_CDR_FB, "ssusb_cdr_fb", "clkxtal",
+		  50000000),
+	FIXED_CLK(CLK_TOP_SATA_ASIC, "sata_asic", "clkxtal",
+		  50000000),
+	FIXED_CLK(CLK_TOP_SATA_RBC, "sata_rbc", "clkxtal",
+		  50000000),
+};
+
+static const struct mtk_fixed_factor top_divs[] = {
+	FACTOR(CLK_TOP_TO_USB3_SYS, "to_usb3_sys", "eth1pll", 1, 4),
+	FACTOR(CLK_TOP_P1_1MHZ, "p1_1mhz", "eth1pll", 1, 500),
+	FACTOR(CLK_TOP_4MHZ, "free_run_4mhz", "eth1pll", 1, 125),
+	FACTOR(CLK_TOP_P0_1MHZ, "p0_1mhz", "eth1pll", 1, 500),
+	FACTOR(CLK_TOP_TXCLK_SRC_PRE, "txclk_src_pre", "sgmiipll_d2", 1, 1),
+	FACTOR(CLK_TOP_RTC, "rtc", "clkxtal", 1, 1024),
+	FACTOR(CLK_TOP_MEMPLL, "mempll", "clkxtal", 32, 1),
+	FACTOR(CLK_TOP_DMPLL, "dmpll_ck", "mempll", 1, 1),
+	FACTOR(CLK_TOP_SYSPLL_D2, "syspll_d2", "mainpll", 1, 2),
+	FACTOR(CLK_TOP_SYSPLL1_D2, "syspll1_d2", "mainpll", 1, 4),
+	FACTOR(CLK_TOP_SYSPLL1_D4, "syspll1_d4", "mainpll", 1, 8),
+	FACTOR(CLK_TOP_SYSPLL1_D8, "syspll1_d8", "mainpll", 1, 16),
+	FACTOR(CLK_TOP_SYSPLL2_D4, "syspll2_d4", "mainpll", 1, 12),
+	FACTOR(CLK_TOP_SYSPLL2_D8, "syspll2_d8", "mainpll", 1, 24),
+	FACTOR(CLK_TOP_SYSPLL_D5, "syspll_d5", "mainpll", 1, 5),
+	FACTOR(CLK_TOP_SYSPLL3_D2, "syspll3_d2", "mainpll", 1, 10),
+	FACTOR(CLK_TOP_SYSPLL3_D4, "syspll3_d4", "mainpll", 1, 20),
+	FACTOR(CLK_TOP_SYSPLL4_D2, "syspll4_d2", "mainpll", 1, 14),
+	FACTOR(CLK_TOP_SYSPLL4_D4, "syspll4_d4", "mainpll", 1, 28),
+	FACTOR(CLK_TOP_SYSPLL4_D16, "syspll4_d16", "mainpll", 1, 112),
+	FACTOR(CLK_TOP_UNIVPLL, "univpll", "univ2pll", 1, 2),
+	FACTOR(CLK_TOP_UNIVPLL_D2, "univpll_d2", "univpll", 1, 2),
+	FACTOR(CLK_TOP_UNIVPLL1_D2, "univpll1_d2", "univpll", 1, 4),
+	FACTOR(CLK_TOP_UNIVPLL1_D4, "univpll1_d4", "univpll", 1, 8),
+	FACTOR(CLK_TOP_UNIVPLL1_D8, "univpll1_d8", "univpll", 1, 16),
+	FACTOR(CLK_TOP_UNIVPLL1_D16, "univpll1_d16", "univpll", 1, 32),
+	FACTOR(CLK_TOP_UNIVPLL2_D2, "univpll2_d2", "univpll", 1, 6),
+	FACTOR(CLK_TOP_UNIVPLL2_D4, "univpll2_d4", "univpll", 1, 12),
+	FACTOR(CLK_TOP_UNIVPLL2_D8, "univpll2_d8", "univpll", 1, 24),
+	FACTOR(CLK_TOP_UNIVPLL2_D16, "univpll2_d16", "univpll", 1, 48),
+	FACTOR(CLK_TOP_UNIVPLL_D5, "univpll_d5", "univpll", 1, 5),
+	FACTOR(CLK_TOP_UNIVPLL3_D2, "univpll3_d2", "univpll", 1, 10),
+	FACTOR(CLK_TOP_UNIVPLL3_D4, "univpll3_d4", "univpll", 1, 20),
+	FACTOR(CLK_TOP_UNIVPLL3_D16, "univpll3_d16", "univpll", 1, 80),
+	FACTOR(CLK_TOP_UNIVPLL_D7, "univpll_d7", "univpll", 1, 7),
+	FACTOR(CLK_TOP_UNIVPLL_D80_D4, "univpll_d80_d4", "univpll", 1, 320),
+	FACTOR(CLK_TOP_UNIV48M, "univ48m", "univpll", 1, 25),
+	FACTOR(CLK_TOP_SGMIIPLL, "sgmiipll_ck", "sgmipll", 1, 1),
+	FACTOR(CLK_TOP_SGMIIPLL_D2, "sgmiipll_d2", "sgmipll", 1, 2),
+	FACTOR(CLK_TOP_AUD1PLL, "aud1pll_ck", "aud1pll", 1, 1),
+	FACTOR(CLK_TOP_AUD2PLL, "aud2pll_ck", "aud2pll", 1, 1),
+	FACTOR(CLK_TOP_AUD_I2S2_MCK, "aud_i2s2_mck", "i2s2_mck_sel", 1, 2),
+	FACTOR(CLK_TOP_TO_USB3_REF, "to_usb3_ref", "univpll2_d4", 1, 4),
+	FACTOR(CLK_TOP_PCIE1_MAC_EN, "pcie1_mac_en", "univpll1_d4", 1, 1),
+	FACTOR(CLK_TOP_PCIE0_MAC_EN, "pcie0_mac_en", "univpll1_d4", 1, 1),
+	FACTOR(CLK_TOP_ETH_500M, "eth_500m", "eth1pll", 1, 1),
+};
+
+static const struct mtk_gate top_clks[] = {
+	/* TOP0 */
+	GATE_TOP0(CLK_TOP_APLL1_DIV_PD, "apll1_ck_div_pd", "apll1_ck_div", 0),
+	GATE_TOP0(CLK_TOP_APLL2_DIV_PD, "apll2_ck_div_pd", "apll2_ck_div", 1),
+	GATE_TOP0(CLK_TOP_I2S0_MCK_DIV_PD, "i2s0_mck_div_pd", "i2s0_mck_div",
+		  2),
+	GATE_TOP0(CLK_TOP_I2S1_MCK_DIV_PD, "i2s1_mck_div_pd", "i2s1_mck_div",
+		  3),
+	GATE_TOP0(CLK_TOP_I2S2_MCK_DIV_PD, "i2s2_mck_div_pd", "i2s2_mck_div",
+		  4),
+	GATE_TOP0(CLK_TOP_I2S3_MCK_DIV_PD, "i2s3_mck_div_pd", "i2s3_mck_div",
+		  5),
+
+	/* TOP1 */
+	GATE_TOP1(CLK_TOP_A1SYS_HP_DIV_PD, "a1sys_div_pd", "a1sys_div", 0),
+	GATE_TOP1(CLK_TOP_A2SYS_HP_DIV_PD, "a2sys_div_pd", "a2sys_div", 16),
+};
+
+static const struct mtk_clk_divider top_adj_divs[] = {
+	DIV_ADJ(CLK_TOP_APLL1_DIV, "apll1_ck_div", "apll1_ck_sel",
+		0x120, 24, 3),
+	DIV_ADJ(CLK_TOP_APLL2_DIV, "apll2_ck_div", "apll2_ck_sel",
+		0x120, 28, 3),
+	DIV_ADJ(CLK_TOP_I2S0_MCK_DIV, "i2s0_mck_div", "i2s0_mck_sel",
+		0x124, 0, 7),
+	DIV_ADJ(CLK_TOP_I2S1_MCK_DIV, "i2s1_mck_div", "i2s1_mck_sel",
+		0x124, 8, 7),
+	DIV_ADJ(CLK_TOP_I2S2_MCK_DIV, "i2s2_mck_div", "aud_i2s2_mck",
+		0x124, 16, 7),
+	DIV_ADJ(CLK_TOP_I2S3_MCK_DIV, "i2s3_mck_div", "i2s3_mck_sel",
+		0x124, 24, 7),
+	DIV_ADJ(CLK_TOP_A1SYS_HP_DIV, "a1sys_div", "a1sys_hp_sel",
+		0x128, 8, 7),
+	DIV_ADJ(CLK_TOP_A2SYS_HP_DIV, "a2sys_div", "a2sys_hp_sel",
+		0x128, 24, 7),
+};
+
+static const struct mtk_gate peri_clks[] = {
+	/* PERI0 */
+	GATE_PERI0(CLK_PERI_THERM_PD, "peri_therm_pd", "axi_sel", 1),
+	GATE_PERI0(CLK_PERI_PWM1_PD, "peri_pwm1_pd", "clkxtal", 2),
+	GATE_PERI0(CLK_PERI_PWM2_PD, "peri_pwm2_pd", "clkxtal", 3),
+	GATE_PERI0(CLK_PERI_PWM3_PD, "peri_pwm3_pd", "clkxtal", 4),
+	GATE_PERI0(CLK_PERI_PWM4_PD, "peri_pwm4_pd", "clkxtal", 5),
+	GATE_PERI0(CLK_PERI_PWM5_PD, "peri_pwm5_pd", "clkxtal", 6),
+	GATE_PERI0(CLK_PERI_PWM6_PD, "peri_pwm6_pd", "clkxtal", 7),
+	GATE_PERI0(CLK_PERI_PWM7_PD, "peri_pwm7_pd", "clkxtal", 8),
+	GATE_PERI0(CLK_PERI_PWM_PD, "peri_pwm_pd", "clkxtal", 9),
+	GATE_PERI0(CLK_PERI_AP_DMA_PD, "peri_ap_dma_pd", "axi_sel", 12),
+	GATE_PERI0(CLK_PERI_MSDC30_0_PD, "peri_msdc30_0", "msdc30_0_sel", 13),
+	GATE_PERI0(CLK_PERI_MSDC30_1_PD, "peri_msdc30_1", "msdc30_1_sel", 14),
+	GATE_PERI0(CLK_PERI_UART0_PD, "peri_uart0_pd", "axi_sel", 17),
+	GATE_PERI0(CLK_PERI_UART1_PD, "peri_uart1_pd", "axi_sel", 18),
+	GATE_PERI0(CLK_PERI_UART2_PD, "peri_uart2_pd", "axi_sel", 19),
+	GATE_PERI0(CLK_PERI_UART3_PD, "peri_uart3_pd", "axi_sel", 20),
+	GATE_PERI0(CLK_PERI_UART4_PD, "peri_uart4_pd", "axi_sel", 21),
+	GATE_PERI0(CLK_PERI_BTIF_PD, "peri_btif_pd", "axi_sel", 22),
+	GATE_PERI0(CLK_PERI_I2C0_PD, "peri_i2c0_pd", "axi_sel", 23),
+	GATE_PERI0(CLK_PERI_I2C1_PD, "peri_i2c1_pd", "axi_sel", 24),
+	GATE_PERI0(CLK_PERI_I2C2_PD, "peri_i2c2_pd", "axi_sel", 25),
+	GATE_PERI0(CLK_PERI_SPI1_PD, "peri_spi1_pd", "spi1_sel", 26),
+	GATE_PERI0(CLK_PERI_AUXADC_PD, "peri_auxadc_pd", "clkxtal", 27),
+	GATE_PERI0(CLK_PERI_SPI0_PD, "peri_spi0_pd", "spi0_sel", 28),
+	GATE_PERI0(CLK_PERI_SNFI_PD, "peri_snfi_pd", "nfi_infra_sel", 29),
+	GATE_PERI0(CLK_PERI_NFI_PD, "peri_nfi_pd", "axi_sel", 30),
+	GATE_PERI0(CLK_PERI_NFIECC_PD, "peri_nfiecc_pd", "axi_sel", 31),
+
+	/* PERI1 */
+	GATE_PERI1(CLK_PERI_FLASH_PD, "peri_flash_pd", "flash_sel", 1),
+	GATE_PERI1(CLK_PERI_IRTX_PD, "peri_irtx_pd", "irtx_sel", 2),
+};
+
+static struct mtk_composite infra_muxes[] __initdata = {
+	MUX(CLK_INFRA_MUX1_SEL, "infra_mux1_sel", infra_mux1_parents,
+	    0x000, 2, 2),
+};
+
+static struct mtk_composite top_muxes[] = {
+	/* CLK_CFG_0 */
+	MUX_GATE(CLK_TOP_AXI_SEL, "axi_sel", axi_parents,
+		 0x040, 0, 3, 7),
+	MUX_GATE(CLK_TOP_MEM_SEL, "mem_sel", mem_parents,
+		 0x040, 8, 1, 15),
+	MUX_GATE(CLK_TOP_DDRPHYCFG_SEL, "ddrphycfg_sel", ddrphycfg_parents,
+		 0x040, 16, 1, 23),
+	MUX_GATE(CLK_TOP_ETH_SEL, "eth_sel", eth_parents,
+		 0x040, 24, 3, 31),
+
+	/* CLK_CFG_1 */
+	MUX_GATE(CLK_TOP_PWM_SEL, "pwm_sel", pwm_parents,
+		 0x050, 0, 2, 7),
+	MUX_GATE(CLK_TOP_F10M_REF_SEL, "f10m_ref_sel", f10m_ref_parents,
+		 0x050, 8, 1, 15),
+	MUX_GATE(CLK_TOP_NFI_INFRA_SEL, "nfi_infra_sel", nfi_infra_parents,
+		 0x050, 16, 4, 23),
+	MUX_GATE(CLK_TOP_FLASH_SEL, "flash_sel", flash_parents,
+		 0x050, 24, 3, 31),
+
+	/* CLK_CFG_2 */
+	MUX_GATE(CLK_TOP_UART_SEL, "uart_sel", uart_parents,
+		 0x060, 0, 1, 7),
+	MUX_GATE(CLK_TOP_SPI0_SEL, "spi0_sel", spi0_parents,
+		 0x060, 8, 3, 15),
+	MUX_GATE(CLK_TOP_SPI1_SEL, "spi1_sel", spi1_parents,
+		 0x060, 16, 3, 23),
+	MUX_GATE(CLK_TOP_MSDC50_0_SEL, "msdc50_0_sel", uart_parents,
+		 0x060, 24, 3, 31),
+
+	/* CLK_CFG_3 */
+	MUX_GATE(CLK_TOP_MSDC30_0_SEL, "msdc30_0_sel", msdc30_0_parents,
+		 0x070, 0, 3, 7),
+	MUX_GATE(CLK_TOP_MSDC30_1_SEL, "msdc30_1_sel", msdc30_0_parents,
+		 0x070, 8, 3, 15),
+	MUX_GATE(CLK_TOP_A1SYS_HP_SEL, "a1sys_hp_sel", a1sys_hp_parents,
+		 0x070, 16, 2, 23),
+	MUX_GATE(CLK_TOP_A2SYS_HP_SEL, "a2sys_hp_sel", a1sys_hp_parents,
+		 0x070, 24, 2, 31),
+
+	/* CLK_CFG_4 */
+	MUX_GATE(CLK_TOP_INTDIR_SEL, "intdir_sel", intdir_parents,
+		 0x080, 0, 2, 7),
+	MUX_GATE(CLK_TOP_AUD_INTBUS_SEL, "aud_intbus_sel", aud_intbus_parents,
+		 0x080, 8, 2, 15),
+	MUX_GATE(CLK_TOP_PMICSPI_SEL, "pmicspi_sel", pmicspi_parents,
+		 0x080, 16, 3, 23),
+	MUX_GATE(CLK_TOP_SCP_SEL, "scp_sel", ddrphycfg_parents,
+		 0x080, 24, 2, 31),
+
+	/* CLK_CFG_5 */
+	MUX_GATE(CLK_TOP_ATB_SEL, "atb_sel", atb_parents,
+		 0x090, 0, 2, 7),
+	MUX_GATE(CLK_TOP_HIF_SEL, "hif_sel", eth_parents,
+		 0x090, 8, 3, 15),
+	MUX_GATE(CLK_TOP_AUDIO_SEL, "audio_sel", audio_parents,
+		 0x090, 16, 2, 23),
+	MUX_GATE(CLK_TOP_U2_SEL, "usb20_sel", usb20_parents,
+		 0x090, 24, 2, 31),
+
+	/* CLK_CFG_6 */
+	MUX_GATE(CLK_TOP_AUD1_SEL, "aud1_sel", aud1_parents,
+		 0x0A0, 0, 1, 7),
+	MUX_GATE(CLK_TOP_AUD2_SEL, "aud2_sel", aud2_parents,
+		 0x0A0, 8, 1, 15),
+	MUX_GATE(CLK_TOP_IRRX_SEL, "irrx_sel", f10m_ref_parents,
+		 0x0A0, 16, 1, 23),
+	MUX_GATE(CLK_TOP_IRTX_SEL, "irtx_sel", f10m_ref_parents,
+		 0x0A0, 24, 1, 31),
+
+	/* CLK_CFG_7 */
+	MUX_GATE(CLK_TOP_ASM_L_SEL, "asm_l_sel", asm_l_parents,
+		 0x0B0, 0, 2, 7),
+	MUX_GATE(CLK_TOP_ASM_M_SEL, "asm_m_sel", asm_l_parents,
+		 0x0B0, 8, 2, 15),
+	MUX_GATE(CLK_TOP_ASM_H_SEL, "asm_h_sel", asm_l_parents,
+		 0x0B0, 16, 2, 23),
+
+	/* CLK_AUDDIV_0 */
+	MUX(CLK_TOP_APLL1_SEL, "apll1_ck_sel", apll1_ck_parents,
+	    0x120, 6, 1),
+	MUX(CLK_TOP_APLL2_SEL, "apll2_ck_sel", apll1_ck_parents,
+	    0x120, 7, 1),
+	MUX(CLK_TOP_I2S0_MCK_SEL, "i2s0_mck_sel", apll1_ck_parents,
+	    0x120, 8, 1),
+	MUX(CLK_TOP_I2S1_MCK_SEL, "i2s1_mck_sel", apll1_ck_parents,
+	    0x120, 9, 1),
+	MUX(CLK_TOP_I2S2_MCK_SEL, "i2s2_mck_sel", apll1_ck_parents,
+	    0x120, 10, 1),
+	MUX(CLK_TOP_I2S3_MCK_SEL, "i2s3_mck_sel", apll1_ck_parents,
+	    0x120, 11, 1),
+};
+
+static struct mtk_composite peri_muxes[] = {
+	/* PERI_GLOBALCON_CKSEL */
+	MUX(CLK_PERIBUS_SEL, "peribus_ck_sel", peribus_ck_parents, 0x05C, 0, 1),
+};
+
+static int mtk_topckgen_init(struct platform_device *pdev)
+{
+	struct clk_onecell_data *clk_data;
+	void __iomem *base;
+	struct device_node *node = pdev->dev.of_node;
+	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	clk_data = mtk_alloc_clk_data(CLK_TOP_NR_CLK);
+
+	mtk_clk_register_fixed_clks(top_fixed_clks, ARRAY_SIZE(top_fixed_clks),
+				    clk_data);
+
+	mtk_clk_register_factors(top_divs, ARRAY_SIZE(top_divs),
+				 clk_data);
+
+	mtk_clk_register_composites(top_muxes, ARRAY_SIZE(top_muxes),
+				    base, &mt7622_clk_lock, clk_data);
+
+	mtk_clk_register_dividers(top_adj_divs, ARRAY_SIZE(top_adj_divs),
+				  base, &mt7622_clk_lock, clk_data);
+
+	mtk_clk_register_gates(node, top_clks, ARRAY_SIZE(top_clks),
+			       clk_data);
+
+	clk_prepare_enable(clk_data->clks[CLK_TOP_AXI_SEL]);
+	clk_prepare_enable(clk_data->clks[CLK_TOP_MEM_SEL]);
+	clk_prepare_enable(clk_data->clks[CLK_TOP_DDRPHYCFG_SEL]);
+
+	return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+}
+
+static int __init mtk_infrasys_init(struct platform_device *pdev)
+{
+	struct device_node *node = pdev->dev.of_node;
+	struct clk_onecell_data *clk_data;
+	int r;
+
+	clk_data = mtk_alloc_clk_data(CLK_INFRA_NR_CLK);
+
+	mtk_clk_register_gates(node, infra_clks, ARRAY_SIZE(infra_clks),
+			       clk_data);
+
+	mtk_clk_register_cpumuxes(node, infra_muxes, ARRAY_SIZE(infra_muxes),
+				  clk_data);
+
+	r = of_clk_add_provider(node, of_clk_src_onecell_get,
+				clk_data);
+	if (r)
+		return r;
+
+	mtk_register_reset_controller(node, 1, 0x30);
+
+	return 0;
+}
+
+static int mtk_apmixedsys_init(struct platform_device *pdev)
+{
+	struct clk_onecell_data *clk_data;
+	struct device_node *node = pdev->dev.of_node;
+
+	clk_data = mtk_alloc_clk_data(CLK_APMIXED_NR_CLK);
+	if (!clk_data)
+		return -ENOMEM;
+
+	mtk_clk_register_plls(node, plls, ARRAY_SIZE(plls),
+			      clk_data);
+
+	mtk_clk_register_gates(node, apmixed_clks,
+			       ARRAY_SIZE(apmixed_clks), clk_data);
+
+	clk_prepare_enable(clk_data->clks[CLK_APMIXED_ARMPLL]);
+	clk_prepare_enable(clk_data->clks[CLK_APMIXED_MAIN_CORE_EN]);
+
+	return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+}
+
+static int mtk_pericfg_init(struct platform_device *pdev)
+{
+	struct clk_onecell_data *clk_data;
+	void __iomem *base;
+	int r;
+	struct device_node *node = pdev->dev.of_node;
+	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	clk_data = mtk_alloc_clk_data(CLK_PERI_NR_CLK);
+
+	mtk_clk_register_gates(node, peri_clks, ARRAY_SIZE(peri_clks),
+			       clk_data);
+
+	mtk_clk_register_composites(peri_muxes, ARRAY_SIZE(peri_muxes), base,
+				    &mt7622_clk_lock, clk_data);
+
+	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
+	if (r)
+		return r;
+
+	clk_prepare_enable(clk_data->clks[CLK_PERI_UART0_PD]);
+
+	mtk_register_reset_controller(node, 2, 0x0);
+
+	return 0;
+}
+
+static const struct of_device_id of_match_clk_mt7622[] = {
+	{
+		.compatible = "mediatek,mt7622-apmixedsys",
+		.data = mtk_apmixedsys_init,
+	}, {
+		.compatible = "mediatek,mt7622-infracfg",
+		.data = mtk_infrasys_init,
+	}, {
+		.compatible = "mediatek,mt7622-topckgen",
+		.data = mtk_topckgen_init,
+	}, {
+		.compatible = "mediatek,mt7622-pericfg",
+		.data = mtk_pericfg_init,
+	}, {
+		/* sentinel */
+	}
+};
+
+static int clk_mt7622_probe(struct platform_device *pdev)
+{
+	int (*clk_init)(struct platform_device *);
+	int r;
+
+	clk_init = of_device_get_match_data(&pdev->dev);
+	if (!clk_init)
+		return -EINVAL;
+
+	r = clk_init(pdev);
+	if (r)
+		dev_err(&pdev->dev,
+			"could not register clock provider: %s: %d\n",
+			pdev->name, r);
+
+	return r;
+}
+
+static struct platform_driver clk_mt7622_drv = {
+	.probe = clk_mt7622_probe,
+	.driver = {
+		.name = "clk-mt7622",
+		.of_match_table = of_match_clk_mt7622,
+	},
+};
+
+static int clk_mt7622_init(void)
+{
+	return platform_driver_register(&clk_mt7622_drv);
+}
+
+arch_initcall(clk_mt7622_init);