[RFC PATCH] reset: mediatek: Move mediatek system clock reset to reset folder

Bo-Chen Chen rex-bc.chen at mediatek.com
Fri May 27 02:03:55 PDT 2022


To manager mediatek system clock reset easier, we move the driver to
drivers/reset.
The modifications in this series:
- Move drivers/clk/mediatek/reset.c to drivers/reset/reset-mediatek-sysclk.c
- Move reset data which are scattered around the mediatek drivers to
  reset-mediatek-sysclk.c
- Use mtk_rst_init/mtk_rst_remove for each clock driver to use this
  reset drivers. We only need to put in device or device node and
  reset compatible name.
- The reason we need to pass device or device node is because some
  mediatek clock drivers are not support device.

Signed-off-by: Bo-Chen Chen <rex-bc.chen at mediatek.com>

-----
This series is based on linux-next next-20220527 and [1].
[1]: https://lore.kernel.org/all/20220523093346.28493-1-rex-bc.chen@mediatek.com/
----

---
 drivers/clk/mediatek/Kconfig               |   1 +
 drivers/clk/mediatek/Makefile              |   2 +-
 drivers/clk/mediatek/clk-mt2701-eth.c      |  10 +-
 drivers/clk/mediatek/clk-mt2701-g3d.c      |  10 +-
 drivers/clk/mediatek/clk-mt2701-hif.c      |  10 +-
 drivers/clk/mediatek/clk-mt2701.c          |  22 +-
 drivers/clk/mediatek/clk-mt2712.c          |  22 +-
 drivers/clk/mediatek/clk-mt7622-eth.c      |  10 +-
 drivers/clk/mediatek/clk-mt7622-hif.c      |  12 +-
 drivers/clk/mediatek/clk-mt7622.c          |  22 +-
 drivers/clk/mediatek/clk-mt7629-eth.c      |  10 +-
 drivers/clk/mediatek/clk-mt7629-hif.c      |  12 +-
 drivers/clk/mediatek/clk-mt8135.c          |  22 +-
 drivers/clk/mediatek/clk-mt8173.c          |  22 +-
 drivers/clk/mediatek/clk-mt8183.c          |  15 +-
 drivers/clk/mediatek/clk-mt8186-infra_ao.c |  23 +-
 drivers/clk/mediatek/clk-mt8192.c          |  26 +-
 drivers/clk/mediatek/clk-mt8195-infra_ao.c |  24 +-
 drivers/clk/mediatek/clk-mtk.c             |  11 +-
 drivers/clk/mediatek/clk-mtk.h             |   9 +-
 drivers/clk/mediatek/reset.c               | 232 ---------
 drivers/clk/mediatek/reset.h               |  82 ----
 drivers/reset/Kconfig                      |   6 +
 drivers/reset/Makefile                     |   1 +
 drivers/reset/reset-mediatek-sysclk.c      | 531 +++++++++++++++++++++
 25 files changed, 574 insertions(+), 573 deletions(-)
 delete mode 100644 drivers/clk/mediatek/reset.c
 delete mode 100644 drivers/clk/mediatek/reset.h
 create mode 100644 drivers/reset/reset-mediatek-sysclk.c

diff --git a/drivers/clk/mediatek/Kconfig b/drivers/clk/mediatek/Kconfig
index d5936cfb3bee..ad1b49c797c8 100644
--- a/drivers/clk/mediatek/Kconfig
+++ b/drivers/clk/mediatek/Kconfig
@@ -8,6 +8,7 @@ menu "Clock driver for MediaTek SoC"
 config COMMON_CLK_MEDIATEK
 	tristate
 	select RESET_CONTROLLER
+	select RESET_MEDIATEK_SYSCLK
 	help
 	  MediaTek SoCs' clock support.
 
diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index caf2ce93d666..cf0f092879a5 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_COMMON_CLK_MEDIATEK) += clk-mtk.o clk-pll.o clk-gate.o clk-apmixed.o clk-cpumux.o reset.o clk-mux.o
+obj-$(CONFIG_COMMON_CLK_MEDIATEK) += clk-mtk.o clk-pll.o clk-gate.o clk-apmixed.o clk-cpumux.o clk-mux.o
 
 obj-$(CONFIG_COMMON_CLK_MT6765) += clk-mt6765.o
 obj-$(CONFIG_COMMON_CLK_MT6765_AUDIOSYS) += clk-mt6765-audio.o
diff --git a/drivers/clk/mediatek/clk-mt2701-eth.c b/drivers/clk/mediatek/clk-mt2701-eth.c
index edf1e2ed2b59..84ea1591257e 100644
--- a/drivers/clk/mediatek/clk-mt2701-eth.c
+++ b/drivers/clk/mediatek/clk-mt2701-eth.c
@@ -36,14 +36,6 @@ static const struct mtk_gate eth_clks[] = {
 	GATE_ETH(CLK_ETHSYS_CRYPTO, "crypto_clk", "ethif_sel", 29),
 };
 
-static u16 rst_ofs[] = { 0x34, };
-
-static const struct mtk_clk_rst_desc clk_rst_desc = {
-	.version = MTK_RST_SIMPLE,
-	.rst_bank_ofs = rst_ofs,
-	.rst_bank_nr = ARRAY_SIZE(rst_ofs),
-};
-
 static const struct of_device_id of_match_clk_mt2701_eth[] = {
 	{ .compatible = "mediatek,mt2701-ethsys", },
 	{}
@@ -66,7 +58,7 @@ static int clk_mt2701_eth_probe(struct platform_device *pdev)
 			"could not register clock provider: %s: %d\n",
 			pdev->name, r);
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
+	mtk_rst_init(&pdev->dev, node, "mt2701-eth-rst");
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt2701-g3d.c b/drivers/clk/mediatek/clk-mt2701-g3d.c
index c1f7d8e30b6a..bddad88b119d 100644
--- a/drivers/clk/mediatek/clk-mt2701-g3d.c
+++ b/drivers/clk/mediatek/clk-mt2701-g3d.c
@@ -35,14 +35,6 @@ static const struct mtk_gate g3d_clks[] = {
 	GATE_G3D(CLK_G3DSYS_CORE, "g3d_core", "mfg_sel", 0),
 };
 
-static u16 rst_ofs[] = { 0xC, };
-
-static const struct mtk_clk_rst_desc clk_rst_desc = {
-	.version = MTK_RST_SIMPLE,
-	.rst_bank_ofs = rst_ofs,
-	.rst_bank_nr = ARRAY_SIZE(rst_ofs),
-};
-
 static int clk_mt2701_g3dsys_init(struct platform_device *pdev)
 {
 	struct clk_hw_onecell_data *clk_data;
@@ -60,7 +52,7 @@ static int clk_mt2701_g3dsys_init(struct platform_device *pdev)
 			"could not register clock provider: %s: %d\n",
 			pdev->name, r);
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
+	mtk_rst_init(&pdev->dev, node, "mt2701-g3d-rst");
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt2701-hif.c b/drivers/clk/mediatek/clk-mt2701-hif.c
index 434cbbe8c037..1064f2e7048d 100644
--- a/drivers/clk/mediatek/clk-mt2701-hif.c
+++ b/drivers/clk/mediatek/clk-mt2701-hif.c
@@ -33,14 +33,6 @@ static const struct mtk_gate hif_clks[] = {
 	GATE_HIF(CLK_HIFSYS_PCIE2, "pcie2_clk", "ethpll_500m_ck", 26),
 };
 
-static u16 rst_ofs[] = { 0x34, };
-
-static const struct mtk_clk_rst_desc clk_rst_desc = {
-	.version = MTK_RST_SIMPLE,
-	.rst_bank_ofs = rst_ofs,
-	.rst_bank_nr = ARRAY_SIZE(rst_ofs),
-};
-
 static const struct of_device_id of_match_clk_mt2701_hif[] = {
 	{ .compatible = "mediatek,mt2701-hifsys", },
 	{}
@@ -65,7 +57,7 @@ static int clk_mt2701_hif_probe(struct platform_device *pdev)
 		return r;
 	}
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
+	mtk_rst_init(&pdev->dev, node, "mt2701-hif-rst");
 
 	return 0;
 }
diff --git a/drivers/clk/mediatek/clk-mt2701.c b/drivers/clk/mediatek/clk-mt2701.c
index 9b442af37e67..9614d9c526aa 100644
--- a/drivers/clk/mediatek/clk-mt2701.c
+++ b/drivers/clk/mediatek/clk-mt2701.c
@@ -735,24 +735,6 @@ static const struct mtk_fixed_factor infra_fixed_divs[] = {
 	FACTOR(CLK_INFRA_CLK_13M, "clk13m", "clk26m", 1, 2),
 };
 
-static u16 infrasys_rst_ofs[] = { 0x30, 0x34, };
-static u16 pericfg_rst_ofs[] = { 0x0, 0x4, };
-
-static const struct mtk_clk_rst_desc clk_rst_desc[] = {
-	/* infrasys */
-	{
-		.version = MTK_RST_SIMPLE,
-		.rst_bank_ofs = infrasys_rst_ofs,
-		.rst_bank_nr = ARRAY_SIZE(infrasys_rst_ofs),
-	},
-	/* pericfg */
-	{
-		.version = MTK_RST_SIMPLE,
-		.rst_bank_ofs = pericfg_rst_ofs,
-		.rst_bank_nr = ARRAY_SIZE(pericfg_rst_ofs),
-	},
-};
-
 static struct clk_hw_onecell_data *infra_clk_data;
 
 static void __init mtk_infrasys_init_early(struct device_node *node)
@@ -805,7 +787,7 @@ static int mtk_infrasys_init(struct platform_device *pdev)
 	if (r)
 		return r;
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc[0]);
+	mtk_rst_init(&pdev->dev, node, "mt2701-infrasys-rst");
 
 	return 0;
 }
@@ -928,7 +910,7 @@ static int mtk_pericfg_init(struct platform_device *pdev)
 	if (r)
 		return r;
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc[1]);
+	mtk_rst_init(&pdev->dev, node, "mt2701-pericfg-rst");
 
 	return 0;
 }
diff --git a/drivers/clk/mediatek/clk-mt2712.c b/drivers/clk/mediatek/clk-mt2712.c
index 56980dd6c2ea..7d1a1032259d 100644
--- a/drivers/clk/mediatek/clk-mt2712.c
+++ b/drivers/clk/mediatek/clk-mt2712.c
@@ -1258,24 +1258,6 @@ static const struct mtk_pll_data plls[] = {
 		0, 31, 0x0300, 4, 0, 0, 0, 0x0304, 0),
 };
 
-static u16 infrasys_rst_ofs[] = { 0x30, 0x34, };
-static u16 pericfg_rst_ofs[] = { 0x0, 0x4, };
-
-static const struct mtk_clk_rst_desc clk_rst_desc[] = {
-	/* infra */
-	{
-		.version = MTK_RST_SIMPLE,
-		.rst_bank_ofs = infrasys_rst_ofs,
-		.rst_bank_nr = ARRAY_SIZE(infrasys_rst_ofs),
-	},
-	/* peri */
-	{
-		.version = MTK_RST_SIMPLE,
-		.rst_bank_ofs = pericfg_rst_ofs,
-		.rst_bank_nr = ARRAY_SIZE(pericfg_rst_ofs),
-	},
-};
-
 static int clk_mt2712_apmixed_probe(struct platform_device *pdev)
 {
 	struct clk_hw_onecell_data *clk_data;
@@ -1379,7 +1361,7 @@ static int clk_mt2712_infra_probe(struct platform_device *pdev)
 		pr_err("%s(): could not register clock provider: %d\n",
 			__func__, r);
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc[0]);
+	mtk_rst_init(&pdev->dev, node, "mt2712-infra-rst");
 
 	return r;
 }
@@ -1401,7 +1383,7 @@ static int clk_mt2712_peri_probe(struct platform_device *pdev)
 		pr_err("%s(): could not register clock provider: %d\n",
 			__func__, r);
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc[1]);
+	mtk_rst_init(&pdev->dev, node, "mt2712-peri-rst");
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7622-eth.c b/drivers/clk/mediatek/clk-mt7622-eth.c
index 43de0477d5d9..d5c5d748852e 100644
--- a/drivers/clk/mediatek/clk-mt7622-eth.c
+++ b/drivers/clk/mediatek/clk-mt7622-eth.c
@@ -65,14 +65,6 @@ static const struct mtk_gate sgmii_clks[] = {
 		   "ssusb_cdr_fb", 5),
 };
 
-static u16 rst_ofs[] = { 0x34, };
-
-static const struct mtk_clk_rst_desc clk_rst_desc = {
-	.version = MTK_RST_SIMPLE,
-	.rst_bank_ofs = rst_ofs,
-	.rst_bank_nr = ARRAY_SIZE(rst_ofs),
-};
-
 static int clk_mt7622_ethsys_init(struct platform_device *pdev)
 {
 	struct clk_hw_onecell_data *clk_data;
@@ -90,7 +82,7 @@ static int clk_mt7622_ethsys_init(struct platform_device *pdev)
 			"could not register clock provider: %s: %d\n",
 			pdev->name, r);
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
+	mtk_rst_init(&pdev->dev, node, "mt7622-eth-rst");
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7622-hif.c b/drivers/clk/mediatek/clk-mt7622-hif.c
index 67e96231dd25..29550642fb66 100644
--- a/drivers/clk/mediatek/clk-mt7622-hif.c
+++ b/drivers/clk/mediatek/clk-mt7622-hif.c
@@ -76,14 +76,6 @@ static const struct mtk_gate pcie_clks[] = {
 	GATE_PCIE(CLK_SATA_PM_EN, "sata_pm_en", "univpll2_d4", 30),
 };
 
-static u16 rst_ofs[] = { 0x34, };
-
-static const struct mtk_clk_rst_desc clk_rst_desc = {
-	.version = MTK_RST_SIMPLE,
-	.rst_bank_ofs = rst_ofs,
-	.rst_bank_nr = ARRAY_SIZE(rst_ofs),
-};
-
 static int clk_mt7622_ssusbsys_init(struct platform_device *pdev)
 {
 	struct clk_hw_onecell_data *clk_data;
@@ -101,7 +93,7 @@ static int clk_mt7622_ssusbsys_init(struct platform_device *pdev)
 			"could not register clock provider: %s: %d\n",
 			pdev->name, r);
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
+	mtk_rst_init(&pdev->dev, node, "mt7622-ssusbsys-rst");
 
 	return r;
 }
@@ -123,7 +115,7 @@ static int clk_mt7622_pciesys_init(struct platform_device *pdev)
 			"could not register clock provider: %s: %d\n",
 			pdev->name, r);
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
+	mtk_rst_init(&pdev->dev, node, "mt7622-pciesys-rst");
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7622.c b/drivers/clk/mediatek/clk-mt7622.c
index 3b55f8641fae..c8ce1951ac1a 100644
--- a/drivers/clk/mediatek/clk-mt7622.c
+++ b/drivers/clk/mediatek/clk-mt7622.c
@@ -610,24 +610,6 @@ static struct mtk_composite peri_muxes[] = {
 	MUX(CLK_PERIBUS_SEL, "peribus_ck_sel", peribus_ck_parents, 0x05C, 0, 1),
 };
 
-static u16 infrasys_rst_ofs[] = { 0x30, };
-static u16 pericfg_rst_ofs[] = { 0x0, 0x4, };
-
-static const struct mtk_clk_rst_desc clk_rst_desc[] = {
-	/* infrasys */
-	{
-		.version = MTK_RST_SIMPLE,
-		.rst_bank_ofs = infrasys_rst_ofs,
-		.rst_bank_nr = ARRAY_SIZE(infrasys_rst_ofs),
-	},
-	/* pericfg */
-	{
-		.version = MTK_RST_SIMPLE,
-		.rst_bank_ofs = pericfg_rst_ofs,
-		.rst_bank_nr = ARRAY_SIZE(pericfg_rst_ofs),
-	},
-};
-
 static int mtk_topckgen_init(struct platform_device *pdev)
 {
 	struct clk_hw_onecell_data *clk_data;
@@ -681,7 +663,7 @@ static int mtk_infrasys_init(struct platform_device *pdev)
 	if (r)
 		return r;
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc[0]);
+	mtk_rst_init(&pdev->dev, node, "mt7622-infrasys-rst");
 
 	return 0;
 }
@@ -732,7 +714,7 @@ static int mtk_pericfg_init(struct platform_device *pdev)
 
 	clk_prepare_enable(clk_data->hws[CLK_PERI_UART0_PD]->clk);
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc[1]);
+	mtk_rst_init(&pdev->dev, node, "mt7622-pericfg-rst");
 
 	return 0;
 }
diff --git a/drivers/clk/mediatek/clk-mt7629-eth.c b/drivers/clk/mediatek/clk-mt7629-eth.c
index 282dd6559465..1917adcfd102 100644
--- a/drivers/clk/mediatek/clk-mt7629-eth.c
+++ b/drivers/clk/mediatek/clk-mt7629-eth.c
@@ -76,14 +76,6 @@ static const struct mtk_gate sgmii_clks[2][4] = {
 	}
 };
 
-static u16 rst_ofs[] = { 0x34, };
-
-static const struct mtk_clk_rst_desc clk_rst_desc = {
-	.version = MTK_RST_SIMPLE,
-	.rst_bank_ofs = rst_ofs,
-	.rst_bank_nr = ARRAY_SIZE(rst_ofs),
-};
-
 static int clk_mt7629_ethsys_init(struct platform_device *pdev)
 {
 	struct clk_hw_onecell_data *clk_data;
@@ -100,7 +92,7 @@ static int clk_mt7629_ethsys_init(struct platform_device *pdev)
 			"could not register clock provider: %s: %d\n",
 			pdev->name, r);
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
+	mtk_rst_init(&pdev->dev, node, "mt7629-ethsys-rst");
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7629-hif.c b/drivers/clk/mediatek/clk-mt7629-hif.c
index 0c8b9e139789..faf9ceacc788 100644
--- a/drivers/clk/mediatek/clk-mt7629-hif.c
+++ b/drivers/clk/mediatek/clk-mt7629-hif.c
@@ -71,14 +71,6 @@ static const struct mtk_gate pcie_clks[] = {
 	GATE_PCIE(CLK_PCIE_P0_PIPE_EN, "pcie_p0_pipe_en", "pcie0_pipe_en", 23),
 };
 
-static u16 rst_ofs[] = { 0x34, };
-
-static const struct mtk_clk_rst_desc clk_rst_desc = {
-	.version = MTK_RST_SIMPLE,
-	.rst_bank_ofs = rst_ofs,
-	.rst_bank_nr = ARRAY_SIZE(rst_ofs),
-};
-
 static int clk_mt7629_ssusbsys_init(struct platform_device *pdev)
 {
 	struct clk_hw_onecell_data *clk_data;
@@ -96,7 +88,7 @@ static int clk_mt7629_ssusbsys_init(struct platform_device *pdev)
 			"could not register clock provider: %s: %d\n",
 			pdev->name, r);
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
+	mtk_rst_init(&pdev->dev, node, "mt7629-ssusbsys-rst");
 
 	return r;
 }
@@ -118,7 +110,7 @@ static int clk_mt7629_pciesys_init(struct platform_device *pdev)
 			"could not register clock provider: %s: %d\n",
 			pdev->name, r);
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
+	mtk_rst_init(&pdev->dev, node, "mt7629-pciesys-rst");
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt8135.c b/drivers/clk/mediatek/clk-mt8135.c
index b68888a034c4..cd01bb6e9a31 100644
--- a/drivers/clk/mediatek/clk-mt8135.c
+++ b/drivers/clk/mediatek/clk-mt8135.c
@@ -514,24 +514,6 @@ static const struct mtk_composite peri_clks[] __initconst = {
 	MUX(CLK_PERI_UART3_SEL, "uart3_ck_sel", uart_ck_sel_parents, 0x40c, 3, 1),
 };
 
-static u16 infrasys_rst_ofs[] = { 0x30, 0x34, };
-static u16 pericfg_rst_ofs[] = { 0x0, 0x4, };
-
-static const struct mtk_clk_rst_desc clk_rst_desc[] = {
-	/* infrasys */
-	{
-		.version = MTK_RST_SIMPLE,
-		.rst_bank_ofs = infrasys_rst_ofs,
-		.rst_bank_nr = ARRAY_SIZE(infrasys_rst_ofs),
-	},
-	/* pericfg */
-	{
-		.version = MTK_RST_SIMPLE,
-		.rst_bank_ofs = pericfg_rst_ofs,
-		.rst_bank_nr = ARRAY_SIZE(pericfg_rst_ofs),
-	}
-};
-
 static void __init mtk_topckgen_init(struct device_node *node)
 {
 	struct clk_hw_onecell_data *clk_data;
@@ -577,7 +559,7 @@ static void __init mtk_infrasys_init(struct device_node *node)
 		pr_err("%s(): could not register clock provider: %d\n",
 			__func__, r);
 
-	mtk_register_reset_controller(node, &clk_rst_desc[0]);
+	mtk_rst_init(NULL, node, "mt8135-infrasys-rst");
 }
 CLK_OF_DECLARE(mtk_infrasys, "mediatek,mt8135-infracfg", mtk_infrasys_init);
 
@@ -605,7 +587,7 @@ static void __init mtk_pericfg_init(struct device_node *node)
 		pr_err("%s(): could not register clock provider: %d\n",
 			__func__, r);
 
-	mtk_register_reset_controller(node, &clk_rst_desc[1]);
+	mtk_rst_init(NULL, node, "mt8135-pericfg-rst");
 }
 CLK_OF_DECLARE(mtk_pericfg, "mediatek,mt8135-pericfg", mtk_pericfg_init);
 
diff --git a/drivers/clk/mediatek/clk-mt8173.c b/drivers/clk/mediatek/clk-mt8173.c
index b8529ee7199d..101539a530f9 100644
--- a/drivers/clk/mediatek/clk-mt8173.c
+++ b/drivers/clk/mediatek/clk-mt8173.c
@@ -819,24 +819,6 @@ static const struct mtk_gate venclt_clks[] __initconst = {
 	GATE_VENCLT(CLK_VENCLT_CKE1, "venclt_cke1", "venclt_sel", 4),
 };
 
-static u16 infrasys_rst_ofs[] = { 0x30, 0x34, };
-static u16 pericfg_rst_ofs[] = { 0x0, 0x4, };
-
-static const struct mtk_clk_rst_desc clk_rst_desc[] = {
-	/* infrasys */
-	{
-		.version = MTK_RST_SIMPLE,
-		.rst_bank_ofs = infrasys_rst_ofs,
-		.rst_bank_nr = ARRAY_SIZE(infrasys_rst_ofs),
-	},
-	/* pericfg */
-	{
-		.version = MTK_RST_SIMPLE,
-		.rst_bank_ofs = pericfg_rst_ofs,
-		.rst_bank_nr = ARRAY_SIZE(pericfg_rst_ofs),
-	}
-};
-
 static struct clk_hw_onecell_data *mt8173_top_clk_data __initdata;
 static struct clk_hw_onecell_data *mt8173_pll_clk_data __initdata;
 
@@ -900,7 +882,7 @@ static void __init mtk_infrasys_init(struct device_node *node)
 		pr_err("%s(): could not register clock provider: %d\n",
 			__func__, r);
 
-	mtk_register_reset_controller(node, &clk_rst_desc[0]);
+	mtk_rst_init(NULL, node, "mt8173-infracfg-rst");
 }
 CLK_OF_DECLARE(mtk_infrasys, "mediatek,mt8173-infracfg", mtk_infrasys_init);
 
@@ -928,7 +910,7 @@ static void __init mtk_pericfg_init(struct device_node *node)
 		pr_err("%s(): could not register clock provider: %d\n",
 			__func__, r);
 
-	mtk_register_reset_controller(node, &clk_rst_desc[1]);
+	mtk_rst_init(NULL, node, "mt8173-pericfg-rst");
 }
 CLK_OF_DECLARE(mtk_pericfg, "mediatek,mt8173-pericfg", mtk_pericfg_init);
 
diff --git a/drivers/clk/mediatek/clk-mt8183.c b/drivers/clk/mediatek/clk-mt8183.c
index 8512101e1189..5853e9813e3d 100644
--- a/drivers/clk/mediatek/clk-mt8183.c
+++ b/drivers/clk/mediatek/clk-mt8183.c
@@ -1150,19 +1150,6 @@ static const struct mtk_pll_data plls[] = {
 		0, 0, 32, 8, 0x02B4, 1, 0x02BC, 0x0014, 1, 0x02B8, 0, 0x02B4),
 };
 
-static u16 infra_rst_ofs[] = {
-	INFRA_RST0_SET_OFFSET,
-	INFRA_RST1_SET_OFFSET,
-	INFRA_RST2_SET_OFFSET,
-	INFRA_RST3_SET_OFFSET,
-};
-
-static const struct mtk_clk_rst_desc clk_rst_desc = {
-	.version = MTK_RST_SET_CLR,
-	.rst_bank_ofs = infra_rst_ofs,
-	.rst_bank_nr = ARRAY_SIZE(infra_rst_ofs),
-};
-
 static int clk_mt8183_apmixed_probe(struct platform_device *pdev)
 {
 	struct clk_hw_onecell_data *clk_data;
@@ -1250,7 +1237,7 @@ static int clk_mt8183_infra_probe(struct platform_device *pdev)
 		return r;
 	}
 
-	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
+	mtk_rst_init(&pdev->dev, node, "mt8183-infra-rst");
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt8186-infra_ao.c b/drivers/clk/mediatek/clk-mt8186-infra_ao.c
index df2a6bd1aefa..958e28472f2b 100644
--- a/drivers/clk/mediatek/clk-mt8186-infra_ao.c
+++ b/drivers/clk/mediatek/clk-mt8186-infra_ao.c
@@ -192,31 +192,10 @@ static const struct mtk_gate infra_ao_clks[] = {
 	GATE_INFRA_AO3(CLK_INFRA_AO_FLASHIF_66M, "infra_ao_flashif_66m", "top_axi", 29),
 };
 
-static u16 infra_ao_rst_ofs[] = {
-	INFRA_RST0_SET_OFFSET,
-	INFRA_RST1_SET_OFFSET,
-	INFRA_RST2_SET_OFFSET,
-	INFRA_RST3_SET_OFFSET,
-	INFRA_RST4_SET_OFFSET,
-};
-
-static u16 infra_ao_idx_map[] = {
-	[MT8186_INFRA_THERMAL_CTRL_RST] = 0 * RST_NR_PER_BANK + 0,
-	[MT8186_INFRA_PTP_CTRL_RST] = 1 * RST_NR_PER_BANK + 0,
-};
-
-static struct mtk_clk_rst_desc infra_ao_rst_desc = {
-	.version = MTK_RST_SET_CLR,
-	.rst_bank_ofs = infra_ao_rst_ofs,
-	.rst_bank_nr = ARRAY_SIZE(infra_ao_rst_ofs),
-	.rst_idx_map = infra_ao_idx_map,
-	.rst_idx_map_nr = ARRAY_SIZE(infra_ao_idx_map),
-};
-
 static const struct mtk_clk_desc infra_ao_desc = {
 	.clks = infra_ao_clks,
 	.num_clks = ARRAY_SIZE(infra_ao_clks),
-	.rst_desc = &infra_ao_rst_desc,
+	.rst_name = "mt8186-infra-ao-rst",
 };
 
 static const struct of_device_id of_match_clk_mt8186_infra_ao[] = {
diff --git a/drivers/clk/mediatek/clk-mt8192.c b/drivers/clk/mediatek/clk-mt8192.c
index ebbd2798d9a3..bffa9dbdcb25 100644
--- a/drivers/clk/mediatek/clk-mt8192.c
+++ b/drivers/clk/mediatek/clk-mt8192.c
@@ -1115,30 +1115,6 @@ static const struct mtk_gate top_clks[] = {
 	GATE_TOP(CLK_TOP_SSUSB_PHY_REF, "ssusb_phy_ref", "clk26m", 25),
 };
 
-static u16 infra_ao_rst_ofs[] = {
-	INFRA_RST0_SET_OFFSET,
-	INFRA_RST1_SET_OFFSET,
-	INFRA_RST2_SET_OFFSET,
-	INFRA_RST3_SET_OFFSET,
-	INFRA_RST4_SET_OFFSET,
-};
-
-static u16 infra_ao_idx_map[] = {
-	[MT8192_INFRA_RST0_THERM_CTRL_SWRST] = 0 * RST_NR_PER_BANK + 0,
-	[MT8192_INFRA_RST2_PEXTP_PHY_SWRST] = 2 * RST_NR_PER_BANK + 15,
-	[MT8192_INFRA_RST3_THERM_CTRL_PTP_SWRST] = 3 * RST_NR_PER_BANK + 5,
-	[MT8192_INFRA_RST4_PCIE_TOP_SWRST] = 4 * RST_NR_PER_BANK + 1,
-	[MT8192_INFRA_RST4_THERM_CTRL_MCU_SWRST] = 4 * RST_NR_PER_BANK + 12,
-};
-
-static const struct mtk_clk_rst_desc clk_rst_desc = {
-	.version = MTK_RST_SET_CLR,
-	.rst_bank_ofs = infra_ao_rst_ofs,
-	.rst_bank_nr = ARRAY_SIZE(infra_ao_rst_ofs),
-	.rst_idx_map = infra_ao_idx_map,
-	.rst_idx_map_nr = ARRAY_SIZE(infra_ao_idx_map),
-};
-
 #define MT8192_PLL_FMAX		(3800UL * MHZ)
 #define MT8192_PLL_FMIN		(1500UL * MHZ)
 #define MT8192_INTEGER_BITS	8
@@ -1265,7 +1241,7 @@ static int clk_mt8192_infra_probe(struct platform_device *pdev)
 	if (r)
 		goto free_clk_data;
 
-	r = mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
+	r = mtk_rst_init(&pdev->dev, node, "mt8192-infra-rst");
 	if (r)
 		goto free_clk_data;
 
diff --git a/drivers/clk/mediatek/clk-mt8195-infra_ao.c b/drivers/clk/mediatek/clk-mt8195-infra_ao.c
index 97657f255618..0861ba6e6673 100644
--- a/drivers/clk/mediatek/clk-mt8195-infra_ao.c
+++ b/drivers/clk/mediatek/clk-mt8195-infra_ao.c
@@ -183,32 +183,10 @@ static const struct mtk_gate infra_ao_clks[] = {
 	GATE_INFRA_AO4(CLK_INFRA_AO_PERI_UFS_MEM_SUB, "infra_ao_peri_ufs_mem_sub", "mem_466m", 31),
 };
 
-static u16 infra_ao_rst_ofs[] = {
-	INFRA_RST0_SET_OFFSET,
-	INFRA_RST1_SET_OFFSET,
-	INFRA_RST2_SET_OFFSET,
-	INFRA_RST3_SET_OFFSET,
-	INFRA_RST4_SET_OFFSET,
-};
-
-static u16 infra_ao_idx_map[] = {
-	[MT8195_INFRA_RST0_THERM_CTRL_SWRST] = 0 * RST_NR_PER_BANK + 0,
-	[MT8195_INFRA_RST3_THERM_CTRL_PTP_SWRST] = 3 * RST_NR_PER_BANK + 5,
-	[MT8195_INFRA_RST4_THERM_CTRL_MCU_SWRST] = 4 * RST_NR_PER_BANK + 10,
-};
-
-static struct mtk_clk_rst_desc infra_ao_rst_desc = {
-	.version = MTK_RST_SET_CLR,
-	.rst_bank_ofs = infra_ao_rst_ofs,
-	.rst_bank_nr = ARRAY_SIZE(infra_ao_rst_ofs),
-	.rst_idx_map = infra_ao_idx_map,
-	.rst_idx_map_nr = ARRAY_SIZE(infra_ao_idx_map),
-};
-
 static const struct mtk_clk_desc infra_ao_desc = {
 	.clks = infra_ao_clks,
 	.num_clks = ARRAY_SIZE(infra_ao_clks),
-	.rst_desc = &infra_ao_rst_desc,
+	.rst_name = "mt8195-infra-ao-rst",
 };
 
 static const struct of_device_id of_match_clk_mt8195_infra_ao[] = {
diff --git a/drivers/clk/mediatek/clk-mtk.c b/drivers/clk/mediatek/clk-mtk.c
index 05a188c62119..3211143820d8 100644
--- a/drivers/clk/mediatek/clk-mtk.c
+++ b/drivers/clk/mediatek/clk-mtk.c
@@ -444,12 +444,8 @@ int mtk_clk_simple_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, clk_data);
 
-	if (mcd->rst_desc) {
-		r = mtk_register_reset_controller_with_dev(&pdev->dev,
-							   mcd->rst_desc);
-		if (r)
-			goto unregister_clks;
-	}
+	if (mcd->rst_name)
+		mtk_rst_init(&pdev->dev, node, mcd->rst_name);
 
 	return r;
 
@@ -470,6 +466,9 @@ int mtk_clk_simple_remove(struct platform_device *pdev)
 	mtk_clk_unregister_gates(mcd->clks, mcd->num_clks, clk_data);
 	mtk_free_clk_data(clk_data);
 
+	if (mcd->rst_name)
+		mtk_rst_remove(&pdev->dev, node, mcd->rst_name);
+
 	return 0;
 }
 
diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h
index 1b95c484d5aa..6909b26d0b55 100644
--- a/drivers/clk/mediatek/clk-mtk.h
+++ b/drivers/clk/mediatek/clk-mtk.h
@@ -13,8 +13,6 @@
 #include <linux/spinlock.h>
 #include <linux/types.h>
 
-#include "reset.h"
-
 #define MAX_MUX_GATE_BIT	31
 #define INVALID_MUX_GATE_BIT	(MAX_MUX_GATE_BIT + 1)
 
@@ -192,10 +190,15 @@ struct clk_hw *mtk_clk_register_ref2usb_tx(const char *name,
 struct mtk_clk_desc {
 	const struct mtk_gate *clks;
 	size_t num_clks;
-	const struct mtk_clk_rst_desc *rst_desc;
+	char *rst_name;
 };
 
 int mtk_clk_simple_probe(struct platform_device *pdev);
 int mtk_clk_simple_remove(struct platform_device *pdev);
 
+extern int mtk_rst_init(struct device *dev, struct device_node *np,
+			const char *name);
+extern int mtk_rst_remove(struct device *dev, struct device_node *np,
+			  const char *name);
+
 #endif /* __DRV_CLK_MTK_H */
diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
deleted file mode 100644
index 179505549a7c..000000000000
--- a/drivers/clk/mediatek/reset.c
+++ /dev/null
@@ -1,232 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2014 MediaTek Inc.
- */
-
-#include <linux/mfd/syscon.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-#include <linux/regmap.h>
-#include <linux/slab.h>
-
-#include "reset.h"
-
-static inline struct mtk_clk_rst_data *to_mtk_clk_rst_data(struct reset_controller_dev *rcdev)
-{
-	return container_of(rcdev, struct mtk_clk_rst_data, rcdev);
-}
-
-static int mtk_reset_update(struct reset_controller_dev *rcdev,
-			    unsigned long id, bool deassert)
-{
-	struct mtk_clk_rst_data *data = to_mtk_clk_rst_data(rcdev);
-	unsigned int val = deassert ? 0 : ~0;
-
-	return regmap_update_bits(data->regmap,
-				  data->desc->rst_bank_ofs[id / RST_NR_PER_BANK],
-				  BIT(id % RST_NR_PER_BANK), val);
-}
-
-static int mtk_reset_assert(struct reset_controller_dev *rcdev,
-			    unsigned long id)
-{
-	return mtk_reset_update(rcdev, id, false);
-}
-
-static int mtk_reset_deassert(struct reset_controller_dev *rcdev,
-			      unsigned long id)
-{
-	return mtk_reset_update(rcdev, id, true);
-}
-
-static int mtk_reset(struct reset_controller_dev *rcdev, unsigned long id)
-{
-	int ret;
-
-	ret = mtk_reset_assert(rcdev, id);
-	if (ret)
-		return ret;
-
-	return mtk_reset_deassert(rcdev, id);
-}
-
-static int mtk_reset_update_set_clr(struct reset_controller_dev *rcdev,
-				    unsigned long id, bool deassert)
-{
-	struct mtk_clk_rst_data *data = to_mtk_clk_rst_data(rcdev);
-	unsigned int deassert_ofs = deassert ? 0x4 : 0;
-
-	return regmap_write(data->regmap,
-			    data->desc->rst_bank_ofs[id / RST_NR_PER_BANK] +
-			    deassert_ofs,
-			    BIT(id % RST_NR_PER_BANK));
-}
-
-static int mtk_reset_assert_set_clr(struct reset_controller_dev *rcdev,
-				    unsigned long id)
-{
-	return mtk_reset_update_set_clr(rcdev, id, false);
-}
-
-static int mtk_reset_deassert_set_clr(struct reset_controller_dev *rcdev,
-				      unsigned long id)
-{
-	return mtk_reset_update_set_clr(rcdev, id, true);
-}
-
-static int mtk_reset_set_clr(struct reset_controller_dev *rcdev,
-			     unsigned long id)
-{
-	int ret;
-
-	ret = mtk_reset_assert_set_clr(rcdev, id);
-	if (ret)
-		return ret;
-	return mtk_reset_deassert_set_clr(rcdev, id);
-}
-
-static const struct reset_control_ops mtk_reset_ops = {
-	.assert = mtk_reset_assert,
-	.deassert = mtk_reset_deassert,
-	.reset = mtk_reset,
-};
-
-static const struct reset_control_ops mtk_reset_ops_set_clr = {
-	.assert = mtk_reset_assert_set_clr,
-	.deassert = mtk_reset_deassert_set_clr,
-	.reset = mtk_reset_set_clr,
-};
-
-static int reset_xlate(struct reset_controller_dev *rcdev,
-		       const struct of_phandle_args *reset_spec)
-{
-	struct mtk_clk_rst_data *data = to_mtk_clk_rst_data(rcdev);
-
-	if (reset_spec->args[0] >= rcdev->nr_resets ||
-	    reset_spec->args[0] >= data->desc->rst_idx_map_nr)
-		return -EINVAL;
-
-	return data->desc->rst_idx_map[reset_spec->args[0]];
-}
-
-int mtk_register_reset_controller(struct device_node *np,
-				  const struct mtk_clk_rst_desc *desc)
-{
-	struct regmap *regmap;
-	const struct reset_control_ops *rcops = NULL;
-	struct mtk_clk_rst_data *data;
-	int ret;
-
-	if (!desc) {
-		pr_err("mtk clock reset desc is NULL\n");
-		return -EINVAL;
-	}
-
-	switch (desc->version) {
-	case MTK_RST_SIMPLE:
-		rcops = &mtk_reset_ops;
-		break;
-	case MTK_RST_SET_CLR:
-		rcops = &mtk_reset_ops_set_clr;
-		break;
-	default:
-		pr_err("Unknown reset version %d\n", desc->version);
-		return -EINVAL;
-	}
-
-	regmap = device_node_to_regmap(np);
-	if (IS_ERR(regmap)) {
-		pr_err("Cannot find regmap for %pOF: %pe\n", np, regmap);
-		return -EINVAL;
-	}
-
-	data = kzalloc(sizeof(*data), GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	data->desc = desc;
-	data->regmap = regmap;
-	data->rcdev.owner = THIS_MODULE;
-	data->rcdev.ops = rcops;
-	data->rcdev.of_node = np;
-
-	if (data->desc->rst_idx_map_nr > 0) {
-		data->rcdev.of_reset_n_cells = 1;
-		data->rcdev.nr_resets = desc->rst_idx_map_nr;
-		data->rcdev.of_xlate = reset_xlate;
-	} else {
-		data->rcdev.nr_resets = desc->rst_bank_nr * RST_NR_PER_BANK;
-	}
-
-	ret = reset_controller_register(&data->rcdev);
-	if (ret) {
-		pr_err("could not register reset controller: %d\n", ret);
-		kfree(data);
-		return ret;
-	}
-
-	return 0;
-}
-
-int mtk_register_reset_controller_with_dev(struct device *dev,
-					   const struct mtk_clk_rst_desc *desc)
-{
-	struct device_node *np = dev->of_node;
-	struct regmap *regmap;
-	const struct reset_control_ops *rcops = NULL;
-	struct mtk_clk_rst_data *data;
-	int ret;
-
-	if (!desc) {
-		dev_err(dev, "mtk clock reset desc is NULL\n");
-		return -EINVAL;
-	}
-
-	switch (desc->version) {
-	case MTK_RST_SIMPLE:
-		rcops = &mtk_reset_ops;
-		break;
-	case MTK_RST_SET_CLR:
-		rcops = &mtk_reset_ops_set_clr;
-		break;
-	default:
-		dev_err(dev, "Unknown reset version %d\n", desc->version);
-		return -EINVAL;
-	}
-
-	regmap = device_node_to_regmap(np);
-	if (IS_ERR(regmap)) {
-		dev_err(dev, "Cannot find regmap %pe\n", regmap);
-		return -EINVAL;
-	}
-
-	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	data->desc = desc;
-	data->regmap = regmap;
-	data->rcdev.owner = THIS_MODULE;
-	data->rcdev.ops = rcops;
-	data->rcdev.of_node = np;
-	data->rcdev.dev = dev;
-
-	if (data->desc->rst_idx_map_nr > 0) {
-		data->rcdev.of_reset_n_cells = 1;
-		data->rcdev.nr_resets = desc->rst_idx_map_nr;
-		data->rcdev.of_xlate = reset_xlate;
-	} else {
-		data->rcdev.nr_resets = desc->rst_bank_nr * RST_NR_PER_BANK;
-	}
-
-	ret = devm_reset_controller_register(dev, &data->rcdev);
-	if (ret) {
-		dev_err(dev, "could not register reset controller: %d\n", ret);
-		return ret;
-	}
-
-	return 0;
-}
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/clk/mediatek/reset.h b/drivers/clk/mediatek/reset.h
deleted file mode 100644
index 913fe676cba7..000000000000
--- a/drivers/clk/mediatek/reset.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (c) 2022 MediaTek Inc.
- */
-
-#ifndef __DRV_CLK_MTK_RESET_H
-#define __DRV_CLK_MTK_RESET_H
-
-#include <linux/reset-controller.h>
-#include <linux/types.h>
-
-#define RST_NR_PER_BANK 32
-
-/* Infra global controller reset set register */
-#define INFRA_RST0_SET_OFFSET 0x120
-#define INFRA_RST1_SET_OFFSET 0x130
-#define INFRA_RST2_SET_OFFSET 0x140
-#define INFRA_RST3_SET_OFFSET 0x150
-#define INFRA_RST4_SET_OFFSET 0x730
-
-/**
- * enum mtk_reset_version - Version of MediaTek clock reset controller.
- * @MTK_RST_SIMPLE: Use the same registers for bit set and clear.
- * @MTK_RST_SET_CLR: Use separate registers for bit set and clear.
- * @MTK_RST_MAX: Total quantity of version for MediaTek clock reset controller.
- */
-enum mtk_reset_version {
-	MTK_RST_SIMPLE = 0,
-	MTK_RST_SET_CLR,
-	MTK_RST_MAX,
-};
-
-/**
- * struct mtk_clk_rst_desc - Description of MediaTek clock reset.
- * @version: Reset version which is defined in enum mtk_reset_version.
- * @rst_bank_ofs: Pointer to an array containing base offsets of the reset register.
- * @rst_bank_nr: Quantity of reset bank.
- * @rst_idx_map:Pointer to an array containing ids if input argument is index.
- *		This array is not necessary if our input argument does not mean index.
- * @rst_idx_map_nr: Quantity of reset index map.
- */
-struct mtk_clk_rst_desc {
-	u8 version;
-	u16 *rst_bank_ofs;
-	u32 rst_bank_nr;
-	u16 *rst_idx_map;
-	u32 rst_idx_map_nr;
-};
-
-/**
- * struct mtk_clk_rst_data - Data of MediaTek clock reset controller.
- * @regmap: Pointer to base address of reset register address.
- * @rcdev: Reset controller device.
- * @desc: Pointer to description of the reset controller.
- */
-struct mtk_clk_rst_data {
-	struct regmap *regmap;
-	struct reset_controller_dev rcdev;
-	const struct mtk_clk_rst_desc *desc;
-};
-
-/**
- * mtk_register_reset_controller - Register MediaTek clock reset controller
- * @np: Pointer to device node.
- * @desc: Constant pointer to description of clock reset.
- *
- * Return: 0 on success and errorno otherwise.
- */
-int mtk_register_reset_controller(struct device_node *np,
-				  const struct mtk_clk_rst_desc *desc);
-
-/**
- * mtk_register_reset_controller - Register mediatek clock reset controller with device
- * @np: Pointer to device.
- * @desc: Constant pointer to description of clock reset.
- *
- * Return: 0 on success and errorno otherwise.
- */
-int mtk_register_reset_controller_with_dev(struct device *dev,
-					   const struct mtk_clk_rst_desc *desc);
-
-#endif /* __DRV_CLK_MTK_RESET_H */
diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig
index 93c8d07ee328..2730feb35336 100644
--- a/drivers/reset/Kconfig
+++ b/drivers/reset/Kconfig
@@ -122,6 +122,12 @@ config RESET_MCHP_SPARX5
 	help
 	  This driver supports switch core reset for the Microchip Sparx5 SoC.
 
+config RESET_MEDIATEK_SYSCLK
+	tristate "MediaTek System Clock Reset Driver"
+	depends on ARM || ARM64 || COMPILE_TEST
+	help
+	  This enables the system clock reset driver for MediaTek SoCs.
+
 config RESET_MESON
 	tristate "Meson Reset Driver"
 	depends on ARCH_MESON || COMPILE_TEST
diff --git a/drivers/reset/Makefile b/drivers/reset/Makefile
index a80a9c4008a7..622b42ed439f 100644
--- a/drivers/reset/Makefile
+++ b/drivers/reset/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_RESET_K210) += reset-k210.o
 obj-$(CONFIG_RESET_LANTIQ) += reset-lantiq.o
 obj-$(CONFIG_RESET_LPC18XX) += reset-lpc18xx.o
 obj-$(CONFIG_RESET_MCHP_SPARX5) += reset-microchip-sparx5.o
+obj-$(CONFIG_RESET_MEDIATEK_SYSCLK) += reset-mediatek-sysclk.o
 obj-$(CONFIG_RESET_MESON) += reset-meson.o
 obj-$(CONFIG_RESET_MESON_AUDIO_ARB) += reset-meson-audio-arb.o
 obj-$(CONFIG_RESET_NPCM) += reset-npcm.o
diff --git a/drivers/reset/reset-mediatek-sysclk.c b/drivers/reset/reset-mediatek-sysclk.c
new file mode 100644
index 000000000000..82e2cde90b75
--- /dev/null
+++ b/drivers/reset/reset-mediatek-sysclk.c
@@ -0,0 +1,531 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2014-2022 MediaTek Inc.
+ */
+
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/reset-controller.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include <dt-bindings/reset/mt8186-resets.h>
+#include <dt-bindings/reset/mt8192-resets.h>
+#include <dt-bindings/reset/mt8195-resets.h>
+
+#define RST_NR_PER_BANK 32
+
+ /* Infra global controller reset set register */
+#define INFRA_RST0_SET_OFFSET 0x120
+#define INFRA_RST1_SET_OFFSET 0x130
+#define INFRA_RST2_SET_OFFSET 0x140
+#define INFRA_RST3_SET_OFFSET 0x150
+#define INFRA_RST4_SET_OFFSET 0x730
+
+/**
+ * enum mtk_reset_version - Version of MediaTek clock reset controller.
+ * @MTK_RST_SIMPLE: Use the same registers for bit set and clear.
+ * @MTK_RST_SET_CLR: Use separate registers for bit set and clear.
+ * @MTK_RST_MAX: Total quantity of version for MediaTek clock reset controller.
+ */
+enum mtk_reset_version {
+	MTK_RST_SIMPLE = 0,
+	MTK_RST_SET_CLR,
+	MTK_RST_MAX,
+};
+
+/**
+ * struct mtk_clk_rst_desc - Description of MediaTek clock reset.
+ * @version: Reset version which is defined in enum mtk_reset_version.
+ * @rst_bank_ofs: Pointer to an array containing base offsets of the reset register.
+ * @rst_bank_nr: Quantity of reset bank.
+ * @rst_idx_map:Pointer to an array containing ids if input argument is index.
+ *		This array is not necessary if our input argument does not mean index.
+ * @rst_idx_map_nr: Quantity of reset index map.
+ */
+struct mtk_clk_rst_desc {
+	u8 version;
+	u16 *rst_bank_ofs;
+	u32 rst_bank_nr;
+	u16 *rst_idx_map;
+	u32 rst_idx_map_nr;
+};
+
+/**
+ * struct mtk_clk_rst_data - Data of MediaTek clock reset controller.
+ * @regmap: Pointer to base address of reset register address.
+ * @rcdev: Reset controller device.
+ * @desc: Pointer to description of the reset controller.
+ */
+struct mtk_clk_rst_data {
+	const char *name;
+	struct regmap *regmap;
+	struct reset_controller_dev rcdev;
+	const struct mtk_clk_rst_desc *desc;
+};
+
+static inline struct mtk_clk_rst_data *to_mtk_clk_rst_data(struct reset_controller_dev *rcdev)
+{
+	return container_of(rcdev, struct mtk_clk_rst_data, rcdev);
+}
+
+static int mtk_reset_update(struct reset_controller_dev *rcdev,
+			    unsigned long id, bool deassert)
+{
+	struct mtk_clk_rst_data *data = to_mtk_clk_rst_data(rcdev);
+	unsigned int val = deassert ? 0 : ~0;
+
+	return regmap_update_bits(data->regmap,
+				  data->desc->rst_bank_ofs[id / RST_NR_PER_BANK],
+				  BIT(id % RST_NR_PER_BANK), val);
+}
+
+static int mtk_reset_assert(struct reset_controller_dev *rcdev,
+			    unsigned long id)
+{
+	return mtk_reset_update(rcdev, id, false);
+}
+
+static int mtk_reset_deassert(struct reset_controller_dev *rcdev,
+			      unsigned long id)
+{
+	return mtk_reset_update(rcdev, id, true);
+}
+
+static int mtk_reset(struct reset_controller_dev *rcdev, unsigned long id)
+{
+	int ret;
+
+	ret = mtk_reset_assert(rcdev, id);
+	if (ret)
+		return ret;
+
+	return mtk_reset_deassert(rcdev, id);
+}
+
+static int mtk_reset_update_set_clr(struct reset_controller_dev *rcdev,
+				    unsigned long id, bool deassert)
+{
+	struct mtk_clk_rst_data *data = to_mtk_clk_rst_data(rcdev);
+	unsigned int deassert_ofs = deassert ? 0x4 : 0;
+
+	return regmap_write(data->regmap,
+			    data->desc->rst_bank_ofs[id / RST_NR_PER_BANK] +
+			    deassert_ofs,
+			    BIT(id % RST_NR_PER_BANK));
+}
+
+static int mtk_reset_assert_set_clr(struct reset_controller_dev *rcdev,
+				    unsigned long id)
+{
+	return mtk_reset_update_set_clr(rcdev, id, false);
+}
+
+static int mtk_reset_deassert_set_clr(struct reset_controller_dev *rcdev,
+				      unsigned long id)
+{
+	return mtk_reset_update_set_clr(rcdev, id, true);
+}
+
+static int mtk_reset_set_clr(struct reset_controller_dev *rcdev,
+			     unsigned long id)
+{
+	int ret;
+
+	ret = mtk_reset_assert_set_clr(rcdev, id);
+	if (ret)
+		return ret;
+	return mtk_reset_deassert_set_clr(rcdev, id);
+}
+
+static const struct reset_control_ops mtk_reset_ops = {
+	.assert = mtk_reset_assert,
+	.deassert = mtk_reset_deassert,
+	.reset = mtk_reset,
+};
+
+static const struct reset_control_ops mtk_reset_ops_set_clr = {
+	.assert = mtk_reset_assert_set_clr,
+	.deassert = mtk_reset_deassert_set_clr,
+	.reset = mtk_reset_set_clr,
+};
+
+static int reset_xlate(struct reset_controller_dev *rcdev,
+		       const struct of_phandle_args *reset_spec)
+{
+	struct mtk_clk_rst_data *data = to_mtk_clk_rst_data(rcdev);
+
+	if (reset_spec->args[0] >= rcdev->nr_resets ||
+	    reset_spec->args[0] >= data->desc->rst_idx_map_nr)
+		return -EINVAL;
+
+	return data->desc->rst_idx_map[reset_spec->args[0]];
+}
+
+static int register_rst_ctrl_with_node(struct device_node *np,
+				       struct mtk_clk_rst_data *data)
+{
+	struct regmap *regmap;
+	const struct reset_control_ops *rcops = NULL;
+	int ret;
+
+	if (!data) {
+		pr_err("invalid mtk clock reset data\n");
+		return -EINVAL;
+	}
+
+	switch (data->desc->version) {
+	case MTK_RST_SIMPLE:
+		rcops = &mtk_reset_ops;
+		break;
+	case MTK_RST_SET_CLR:
+		rcops = &mtk_reset_ops_set_clr;
+		break;
+	default:
+		pr_err("Unknown reset version %d\n", data->desc->version);
+		return -EINVAL;
+	}
+
+	regmap = device_node_to_regmap(np);
+	if (IS_ERR(regmap)) {
+		pr_err("Cannot find regmap for %pOF: %pe\n", np, regmap);
+		return -EINVAL;
+	}
+
+	data->regmap = regmap;
+	data->rcdev.owner = THIS_MODULE;
+	data->rcdev.ops = rcops;
+	data->rcdev.of_node = np;
+
+	if (data->desc->rst_idx_map_nr > 0) {
+		data->rcdev.of_reset_n_cells = 1;
+		data->rcdev.nr_resets = data->desc->rst_idx_map_nr;
+		data->rcdev.of_xlate = reset_xlate;
+	} else {
+		data->rcdev.nr_resets = data->desc->rst_bank_nr * RST_NR_PER_BANK;
+	}
+
+	ret = reset_controller_register(&data->rcdev);
+	if (ret) {
+		pr_err("could not register reset controller: %d\n", ret);
+		kfree(data);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int register_rst_ctrl_with_dev(struct device *dev,
+				      struct mtk_clk_rst_data *data)
+{
+	struct device_node *np = dev->of_node;
+	struct regmap *regmap;
+	const struct reset_control_ops *rcops = NULL;
+	int ret;
+
+	if (!data) {
+		dev_err(dev, "invalid mtk clock reset data\n");
+		return -EINVAL;
+	}
+
+	switch (data->desc->version) {
+	case MTK_RST_SIMPLE:
+		rcops = &mtk_reset_ops;
+		break;
+	case MTK_RST_SET_CLR:
+		rcops = &mtk_reset_ops_set_clr;
+		break;
+	default:
+		dev_err(dev, "Unknown reset version %d\n", data->desc->version);
+		return -EINVAL;
+	}
+
+	regmap = device_node_to_regmap(np);
+	if (IS_ERR(regmap)) {
+		dev_err(dev, "Cannot find regmap %pe\n", regmap);
+		return -EINVAL;
+	}
+
+	data->regmap = regmap;
+	data->rcdev.owner = THIS_MODULE;
+	data->rcdev.ops = rcops;
+	data->rcdev.of_node = np;
+	data->rcdev.dev = dev;
+
+	if (data->desc->rst_idx_map_nr > 0) {
+		data->rcdev.of_reset_n_cells = 1;
+		data->rcdev.nr_resets = data->desc->rst_idx_map_nr;
+		data->rcdev.of_xlate = reset_xlate;
+	} else {
+		data->rcdev.nr_resets = data->desc->rst_bank_nr * RST_NR_PER_BANK;
+	}
+
+	ret = devm_reset_controller_register(dev, &data->rcdev);
+	if (ret) {
+		dev_err(dev, "could not register reset controller: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+/* array of reset offset */
+static u16 mt2701_eth_rst_ofs[] = { 0x34, };
+static u16 mt2701_g3d_rst_ofs[] = { 0xc, };
+static u16 mt2701_infrasys_rst_ofs[] = { 0x30, 0x34, };
+static u16 mt2701_pericfg_rst_ofs[] = { 0x0, 0x4, };
+static u16 mt7622_infrasys_rst_ofs[] = { 0x30, };
+
+static u16 mt8183_infra_ao_rst_ofs[] = {
+	INFRA_RST0_SET_OFFSET,
+	INFRA_RST1_SET_OFFSET,
+	INFRA_RST2_SET_OFFSET,
+	INFRA_RST3_SET_OFFSET,
+};
+
+static u16 mt8192_infra_ao_rst_ofs[] = {
+	INFRA_RST0_SET_OFFSET,
+	INFRA_RST1_SET_OFFSET,
+	INFRA_RST2_SET_OFFSET,
+	INFRA_RST3_SET_OFFSET,
+	INFRA_RST4_SET_OFFSET,
+};
+
+/* array of reset index mapping */
+static u16 mt8192_infra_ao_idx_map[] = {
+	[MT8192_INFRA_RST0_THERM_CTRL_SWRST] = 0 * RST_NR_PER_BANK + 0,
+	[MT8192_INFRA_RST2_PEXTP_PHY_SWRST] = 2 * RST_NR_PER_BANK + 15,
+	[MT8192_INFRA_RST3_THERM_CTRL_PTP_SWRST] = 3 * RST_NR_PER_BANK + 5,
+	[MT8192_INFRA_RST4_PCIE_TOP_SWRST] = 4 * RST_NR_PER_BANK + 1,
+	[MT8192_INFRA_RST4_THERM_CTRL_MCU_SWRST] = 4 * RST_NR_PER_BANK + 12,
+};
+
+static u16 mt8195_infra_ao_idx_map[] = {
+	[MT8195_INFRA_RST0_THERM_CTRL_SWRST] = 0 * RST_NR_PER_BANK + 0,
+	[MT8195_INFRA_RST3_THERM_CTRL_PTP_SWRST] = 3 * RST_NR_PER_BANK + 5,
+	[MT8195_INFRA_RST4_THERM_CTRL_MCU_SWRST] = 4 * RST_NR_PER_BANK + 10,
+};
+
+static u16 mt8186_infra_ao_idx_map[] = {
+	[MT8186_INFRA_THERMAL_CTRL_RST] = 0 * RST_NR_PER_BANK + 0,
+	[MT8186_INFRA_PTP_CTRL_RST] = 1 * RST_NR_PER_BANK + 0,
+};
+
+/* reset description */
+static const struct mtk_clk_rst_desc mt2701_eth_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_ofs = mt2701_eth_rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(mt2701_eth_rst_ofs),
+};
+
+static const struct mtk_clk_rst_desc mt2701_g3d_clk_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_ofs = mt2701_g3d_rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(mt2701_g3d_rst_ofs),
+};
+
+static const struct mtk_clk_rst_desc mt2701_infrasys_clk_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_ofs = mt2701_infrasys_rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(mt2701_infrasys_rst_ofs),
+};
+
+static const struct mtk_clk_rst_desc mt2701_pericfg_clk_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_ofs = mt2701_pericfg_rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(mt2701_pericfg_rst_ofs),
+};
+
+static const struct mtk_clk_rst_desc mt7622_infrasys_clk_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_ofs = mt7622_infrasys_rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(mt7622_infrasys_rst_ofs),
+};
+
+static struct mtk_clk_rst_desc mt8183_rst_desc = {
+	.version = MTK_RST_SET_CLR,
+	.rst_bank_ofs = mt8183_infra_ao_rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(mt8183_infra_ao_rst_ofs),
+};
+
+static struct mtk_clk_rst_desc mt8186_rst_desc = {
+	.version = MTK_RST_SET_CLR,
+	.rst_bank_ofs = mt8183_infra_ao_rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(mt8183_infra_ao_rst_ofs),
+	.rst_idx_map = mt8186_infra_ao_idx_map,
+	.rst_idx_map_nr = ARRAY_SIZE(mt8186_infra_ao_idx_map),
+};
+
+static struct mtk_clk_rst_desc mt8192_rst_desc = {
+	.version = MTK_RST_SET_CLR,
+	.rst_bank_ofs = mt8192_infra_ao_rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(mt8192_infra_ao_rst_ofs),
+	.rst_idx_map = mt8192_infra_ao_idx_map,
+	.rst_idx_map_nr = ARRAY_SIZE(mt8192_infra_ao_idx_map),
+};
+
+static struct mtk_clk_rst_desc mt8195_rst_desc = {
+	.version = MTK_RST_SET_CLR,
+	.rst_bank_ofs = mt8192_infra_ao_rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(mt8192_infra_ao_rst_ofs),
+	.rst_idx_map = mt8195_infra_ao_idx_map,
+	.rst_idx_map_nr = ARRAY_SIZE(mt8195_infra_ao_idx_map),
+};
+
+/* reset data */
+static struct mtk_clk_rst_data clk_rst_data[] = {
+	{
+		.name = "mt2701-eth-rst",
+		.desc = &mt2701_eth_rst_desc,
+	},
+	{
+		.name = "mt2701-g3d-rst",
+		.desc = &mt2701_g3d_clk_rst_desc,
+	},
+	{
+		.name = "mt2701-hif-rst",
+		.desc = &mt2701_eth_rst_desc,
+	},
+	{
+		.name = "mt2701-infrasys-rst",
+		.desc = &mt2701_infrasys_clk_rst_desc,
+	},
+	{
+		.name = "mt2701-pericfg-rst",
+		.desc = &mt2701_pericfg_clk_rst_desc,
+	},
+	{
+		.name = "mt2712-infra-rst",
+		.desc = &mt2701_infrasys_clk_rst_desc,
+	},
+	{
+		.name = "mt2712-peri-rst",
+		.desc = &mt2701_pericfg_clk_rst_desc,
+	},
+	{
+		.name = "mt7622-eth-rst",
+		.desc = &mt2701_eth_rst_desc,
+	},
+	{
+		.name = "mt7622-ssusbsys-rst",
+		.desc = &mt2701_eth_rst_desc,
+	},
+	{
+		.name = "mt7622-pciesys-rst",
+		.desc = &mt2701_eth_rst_desc,
+	},
+	{
+		.name = "mt7622-infrasys-rst",
+		.desc = &mt7622_infrasys_clk_rst_desc,
+	},
+	{
+		.name = "mt7622-pericfg-rst",
+		.desc = &mt2701_pericfg_clk_rst_desc,
+	},
+	{
+		.name = "mt7629-ethsys-rst",
+		.desc = &mt2701_eth_rst_desc,
+	},
+	{
+		.name = "mt7629-ssusbsys-rst",
+		.desc = &mt2701_eth_rst_desc,
+	},
+	{
+		.name = "mt7629-pciesys-rst",
+		.desc = &mt2701_eth_rst_desc,
+	},
+	{
+		.name = "mt8135-infrasys-rst",
+		.desc = &mt2701_infrasys_clk_rst_desc,
+	},
+	{
+		.name = "mt8135-pericfg-rst",
+		.desc = &mt2701_pericfg_clk_rst_desc,
+	},
+	{
+		.name = "mt8173-infracfg-rst",
+		.desc = &mt2701_infrasys_clk_rst_desc,
+	},
+	{
+		.name = "mt8173-pericfg-rst",
+		.desc = &mt2701_pericfg_clk_rst_desc,
+	},
+	{
+		.name = "mt8183-infra-rst",
+		.desc = &mt8183_rst_desc,
+	},
+	{
+		.name = "mt8192-infra-rst",
+		.desc = &mt8192_rst_desc,
+	},
+	{
+		.name = "mt8195-infra-ao-rst",
+		.desc = &mt8195_rst_desc,
+	},
+	{
+		.name = "mt8186-infra-ao-rst",
+		.desc = &mt8186_rst_desc,
+	},
+	{
+	},
+};
+
+static struct mtk_clk_rst_data *find_rst_data(const char *name)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(clk_rst_data); i++) {
+		if (clk_rst_data[i].name == name)
+			break;
+	}
+
+	if (i == ARRAY_SIZE(clk_rst_data)) {
+		pr_err("failed to find reset name: %s\n", name);
+		return NULL;
+	}
+
+	return &clk_rst_data[i];
+}
+
+int mtk_rst_init(struct device *dev, struct device_node *np, const char *name)
+{
+	int ret;
+	struct mtk_clk_rst_data *data;
+
+	if (!np && !dev)
+		return -1;
+
+	data = find_rst_data(name);
+	if (!data)
+		return -1;
+
+	if (dev)
+		ret = register_rst_ctrl_with_dev(dev, data);
+	else
+		ret = register_rst_ctrl_with_node(np, data);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(mtk_rst_init);
+
+void mtk_rst_remove(struct device *dev, struct device_node *np, const char *name)
+{
+	struct mtk_clk_rst_data *data;
+
+	if (!np && !dev)
+		return;
+
+	data = find_rst_data(name);
+	if (!data)
+		return;
+
+	/* only need to free register without dev */
+	if (!dev)
+		reset_controller_unregister(&data->rcdev);
+}
+EXPORT_SYMBOL_GPL(mtk_rst_remove);
+
+MODULE_LICENSE("GPL");
-- 
2.18.0




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