[PATCH v6 00/16] Cleanup MediaTek clk reset drivers and support MT8192/MT8195

[PATCH v6 00/16] Cleanup MediaTek clk reset drivers and support MT8192/MT8195

[Rex-BC Chen]

In this series, we cleanup MediaTek clock reset drivers in clk/mediatek
folder. MediaTek clock reset driver is used to provide reset control
of modules controlled in clk, like infra_ao.

Changes for v6:
1. Add a new patch to support inuput argument index mode.
2. Revise definition in reset.h to index.

Changes for V5:
1. Add all infra reset bits for MT8192 and MT8195.
2. Fix reviewers' comments.

Changes for V4:
1. Abandon the implementation of reset-cell = 2, and use reset index to
   determine which reset bit is used.
2. Add documentation for enum/structure/function in reset.h.
3. Combine binding/drvier support patch for MT8192 and MT8195.
4. The MT8195 DTS is accepted by Matthias, and I add new DTS patch to
   support infracfg_ao reset for MT8195. The DTS of MT8195 is still
   not merged into mainline. Please refer to [1].

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux.git/commit/?h=for-next&id=37f2582883be7218dc69f9af135959a8e93de223

Changes for V3:
1. Modify drivers for reviewers' comments.
2. Add dt-binding patch for MT8192/MT8195 infra.
3. Add reset property of infra node for MT8192.
4. Use original function for simple operation.

Changes for V2:
1. Modify drivers for reviewers' comments.
2. Use simple reset to replace v1.
3. Recover v2 to set_clr.
4. Separate error handling to another patch.
5. Add support for input offset and bit from DT.
6. Add support for MT8192 and MT8195.

Rex-BC Chen (16):
  clk: mediatek: reset: Add reset.h
  clk: mediatek: reset: Fix written reset bit offset
  clk: mediatek: reset: Refine and reorder functions in reset.c
  clk: mediatek: reset: Extract common drivers to update function
  clk: mediatek: reset: Merge and revise reset register function
  clk: mediatek: reset: Revise structure to control reset register
  clk: mediatek: reset: Support nonsequence base offsets of reset
    registers
  clk: mediatek: reset: Support inuput argument index mode
  clk: mediatek: reset: Change return type for clock reset register
    function
  clk: mediatek: reset: Add new register reset function with device
  clk: mediatek: reset: Add reset support for simple probe
  dt-bindings: arm: mediatek: Add #reset-cells property for
    MT8192/MT8195
  dt-bindings: reset: mediatek: Add infra_ao reset index for
    MT8192/MT8195
  clk: mediatek: reset: Add infra_ao reset support for MT8192/MT8195
  arm64: dts: mediatek: Add infra #reset-cells property for MT8192
  arm64: dts: mediatek: Add infra #reset-cells property for MT8195

 .../mediatek/mediatek,mt8192-sys-clock.yaml   |   3 +
 .../mediatek/mediatek,mt8195-sys-clock.yaml   |   3 +
 arch/arm64/boot/dts/mediatek/mt8192.dtsi      |   1 +
 arch/arm64/boot/dts/mediatek/mt8195.dtsi      |  13 +-
 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             |  18 +-
 drivers/clk/mediatek/clk-mt8192.c             |  29 +++
 drivers/clk/mediatek/clk-mt8195-infra_ao.c    |  24 +++
 drivers/clk/mediatek/clk-mtk.c                |   7 +
 drivers/clk/mediatek/clk-mtk.h                |   9 +-
 drivers/clk/mediatek/reset.c                  | 198 +++++++++++++-----
 drivers/clk/mediatek/reset.h                  |  82 ++++++++
 include/dt-bindings/reset/mt8192-resets.h     |   8 +
 include/dt-bindings/reset/mt8195-resets.h     |   6 +
 25 files changed, 491 insertions(+), 94 deletions(-)
 create mode 100644 drivers/clk/mediatek/reset.h

-- 
2.18.0

[PATCH v6 01/16] clk: mediatek: reset: Add reset.h

[Rex-BC Chen]

Add a new file "reset.h" to place some definitions for clock reset.

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/clk/mediatek/clk-mtk.h |  8 ++------
 drivers/clk/mediatek/reset.c   |  9 +--------
 drivers/clk/mediatek/reset.h   | 24 ++++++++++++++++++++++++
 3 files changed, 27 insertions(+), 14 deletions(-)
 create mode 100644 drivers/clk/mediatek/reset.h

diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h
index bf6565aa7319..a6d0f24c62fa 100644
--- a/drivers/clk/mediatek/clk-mtk.h
+++ b/drivers/clk/mediatek/clk-mtk.h
@@ -13,6 +13,8 @@
 #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)
 
@@ -190,12 +192,6 @@ void mtk_free_clk_data(struct clk_onecell_data *clk_data);
 struct clk *mtk_clk_register_ref2usb_tx(const char *name,
 			const char *parent_name, void __iomem *reg);
 
-void mtk_register_reset_controller(struct device_node *np,
-			unsigned int num_regs, int regofs);
-
-void mtk_register_reset_controller_set_clr(struct device_node *np,
-	unsigned int num_regs, int regofs);
-
 struct mtk_clk_desc {
 	const struct mtk_gate *clks;
 	size_t num_clks;
diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
index bcec4b89f449..9f3cb22aea1b 100644
--- a/drivers/clk/mediatek/reset.c
+++ b/drivers/clk/mediatek/reset.c
@@ -8,16 +8,9 @@
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
-#include <linux/reset-controller.h>
 #include <linux/slab.h>
 
-#include "clk-mtk.h"
-
-struct mtk_reset {
-	struct regmap *regmap;
-	int regofs;
-	struct reset_controller_dev rcdev;
-};
+#include "reset.h"
 
 static int mtk_reset_assert_set_clr(struct reset_controller_dev *rcdev,
 	unsigned long id)
diff --git a/drivers/clk/mediatek/reset.h b/drivers/clk/mediatek/reset.h
new file mode 100644
index 000000000000..764a8affe206
--- /dev/null
+++ b/drivers/clk/mediatek/reset.h
@@ -0,0 +1,24 @@
+/* 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>
+
+struct mtk_reset {
+	struct regmap *regmap;
+	int regofs;
+	struct reset_controller_dev rcdev;
+};
+
+void mtk_register_reset_controller(struct device_node *np,
+				   unsigned int num_regs, int regofs);
+
+void mtk_register_reset_controller_set_clr(struct device_node *np,
+					   unsigned int num_regs, int regofs);
+
+#endif /* __DRV_CLK_MTK_RESET_H */
-- 
2.18.0

[PATCH v6 02/16] clk: mediatek: reset: Fix written reset bit offset

[Rex-BC Chen]

Original assert/deassert bit is BIT(0), but it's more resonable to modify
them to BIT(id % 32) which is based on id.

This patch will not influence any previous driver because the reset is
only used for thermal. The id (MT8183_INFRACFG_AO_THERM_SW_RST) is 0.

Fixes: 64ebb57a3df6 ("clk: reset: Modify reset-controller driver")
Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/clk/mediatek/reset.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
index 9f3cb22aea1b..5191becb45dd 100644
--- a/drivers/clk/mediatek/reset.c
+++ b/drivers/clk/mediatek/reset.c
@@ -18,7 +18,7 @@ static int mtk_reset_assert_set_clr(struct reset_controller_dev *rcdev,
 	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
 	unsigned int reg = data->regofs + ((id / 32) << 4);
 
-	return regmap_write(data->regmap, reg, 1);
+	return regmap_write(data->regmap, reg, BIT(id % 32));
 }
 
 static int mtk_reset_deassert_set_clr(struct reset_controller_dev *rcdev,
@@ -27,7 +27,7 @@ static int mtk_reset_deassert_set_clr(struct reset_controller_dev *rcdev,
 	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
 	unsigned int reg = data->regofs + ((id / 32) << 4) + 0x4;
 
-	return regmap_write(data->regmap, reg, 1);
+	return regmap_write(data->regmap, reg, BIT(id % 32));
 }
 
 static int mtk_reset_assert(struct reset_controller_dev *rcdev,
-- 
2.18.0

[PATCH v6 03/16] clk: mediatek: reset: Refine and reorder functions in reset.c

[Rex-BC Chen]

To make drivers more readable, we modify the indentation of the drivers
and reorder the location of functions.

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/clk/mediatek/reset.c | 68 +++++++++++++++++++-----------------
 1 file changed, 36 insertions(+), 32 deletions(-)

diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
index 5191becb45dd..5cbbcc22a4fc 100644
--- a/drivers/clk/mediatek/reset.c
+++ b/drivers/clk/mediatek/reset.c
@@ -12,56 +12,59 @@
 
 #include "reset.h"
 
-static int mtk_reset_assert_set_clr(struct reset_controller_dev *rcdev,
-	unsigned long id)
+static int mtk_reset_assert(struct reset_controller_dev *rcdev,
+			    unsigned long id)
 {
 	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
-	unsigned int reg = data->regofs + ((id / 32) << 4);
 
-	return regmap_write(data->regmap, reg, BIT(id % 32));
+	return regmap_update_bits(data->regmap,
+				  data->regofs + ((id / 32) << 2),
+				  BIT(id % 32), ~0);
 }
 
-static int mtk_reset_deassert_set_clr(struct reset_controller_dev *rcdev,
-	unsigned long id)
+static int mtk_reset_deassert(struct reset_controller_dev *rcdev,
+			      unsigned long id)
 {
 	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
-	unsigned int reg = data->regofs + ((id / 32) << 4) + 0x4;
 
-	return regmap_write(data->regmap, reg, BIT(id % 32));
+	return regmap_update_bits(data->regmap,
+				  data->regofs + ((id / 32) << 2),
+				  BIT(id % 32), 0);
 }
 
-static int mtk_reset_assert(struct reset_controller_dev *rcdev,
-			      unsigned long id)
+static int mtk_reset(struct reset_controller_dev *rcdev, unsigned long id)
 {
-	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
+	int ret;
+
+	ret = mtk_reset_assert(rcdev, id);
+	if (ret)
+		return ret;
 
-	return regmap_update_bits(data->regmap, data->regofs + ((id / 32) << 2),
-			BIT(id % 32), ~0);
+	return mtk_reset_deassert(rcdev, id);
 }
 
-static int mtk_reset_deassert(struct reset_controller_dev *rcdev,
-				unsigned long id)
+static int mtk_reset_assert_set_clr(struct reset_controller_dev *rcdev,
+				    unsigned long id)
 {
 	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
 
-	return regmap_update_bits(data->regmap, data->regofs + ((id / 32) << 2),
-			BIT(id % 32), 0);
+	return regmap_write(data->regmap,
+			    data->regofs + ((id / 32) << 4),
+			    BIT(id % 32));
 }
 
-static int mtk_reset(struct reset_controller_dev *rcdev,
-			      unsigned long id)
+static int mtk_reset_deassert_set_clr(struct reset_controller_dev *rcdev,
+				      unsigned long id)
 {
-	int ret;
-
-	ret = mtk_reset_assert(rcdev, id);
-	if (ret)
-		return ret;
+	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
 
-	return mtk_reset_deassert(rcdev, id);
+	return regmap_write(data->regmap,
+			    data->regofs + ((id / 32) << 4) + 0x4,
+			    BIT(id % 32));
 }
 
 static int mtk_reset_set_clr(struct reset_controller_dev *rcdev,
-	unsigned long id)
+			     unsigned long id)
 {
 	int ret;
 
@@ -84,8 +87,9 @@ static const struct reset_control_ops mtk_reset_ops_set_clr = {
 };
 
 static void mtk_register_reset_controller_common(struct device_node *np,
-			unsigned int num_regs, int regofs,
-			const struct reset_control_ops *reset_ops)
+						 unsigned int num_regs,
+						 int regofs,
+						 const struct reset_control_ops *reset_ops)
 {
 	struct mtk_reset *data;
 	int ret;
@@ -117,17 +121,17 @@ static void mtk_register_reset_controller_common(struct device_node *np,
 }
 
 void mtk_register_reset_controller(struct device_node *np,
-	unsigned int num_regs, int regofs)
+				   unsigned int num_regs, int regofs)
 {
 	mtk_register_reset_controller_common(np, num_regs, regofs,
-		&mtk_reset_ops);
+					     &mtk_reset_ops);
 }
 
 void mtk_register_reset_controller_set_clr(struct device_node *np,
-	unsigned int num_regs, int regofs)
+					   unsigned int num_regs, int regofs)
 {
 	mtk_register_reset_controller_common(np, num_regs, regofs,
-		&mtk_reset_ops_set_clr);
+					     &mtk_reset_ops_set_clr);
 }
 
 MODULE_LICENSE("GPL");
-- 
2.18.0

[PATCH v6 04/16] clk: mediatek: reset: Extract common drivers to update function

[Rex-BC Chen]

To make drivers more clear and readable, we extract common code
within assert and deassert to mtk_reset_update_set_clr() and
mtk_reset_update().

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/clk/mediatek/reset.c | 38 +++++++++++++++++++++---------------
 1 file changed, 22 insertions(+), 16 deletions(-)

diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
index 5cbbcc22a4fc..22fa9f09752c 100644
--- a/drivers/clk/mediatek/reset.c
+++ b/drivers/clk/mediatek/reset.c
@@ -12,24 +12,27 @@
 
 #include "reset.h"
 
-static int mtk_reset_assert(struct reset_controller_dev *rcdev,
-			    unsigned long id)
+static int mtk_reset_update(struct reset_controller_dev *rcdev,
+			    unsigned long id, bool deassert)
 {
 	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
+	unsigned int val = deassert ? 0 : ~0;
 
 	return regmap_update_bits(data->regmap,
 				  data->regofs + ((id / 32) << 2),
-				  BIT(id % 32), ~0);
+				  BIT(id % 32), 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)
 {
-	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
-
-	return regmap_update_bits(data->regmap,
-				  data->regofs + ((id / 32) << 2),
-				  BIT(id % 32), 0);
+	return mtk_reset_update(rcdev, id, true);
 }
 
 static int mtk_reset(struct reset_controller_dev *rcdev, unsigned long id)
@@ -43,24 +46,27 @@ static int mtk_reset(struct reset_controller_dev *rcdev, unsigned long id)
 	return mtk_reset_deassert(rcdev, id);
 }
 
-static int mtk_reset_assert_set_clr(struct reset_controller_dev *rcdev,
-				    unsigned long id)
+static int mtk_reset_update_set_clr(struct reset_controller_dev *rcdev,
+				    unsigned long id, bool deassert)
 {
 	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
+	unsigned int deassert_ofs = deassert ? 0x4 : 0;
 
 	return regmap_write(data->regmap,
-			    data->regofs + ((id / 32) << 4),
+			    data->regofs + ((id / 32) << 4) + deassert_ofs,
 			    BIT(id % 32));
 }
 
+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)
 {
-	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
-
-	return regmap_write(data->regmap,
-			    data->regofs + ((id / 32) << 4) + 0x4,
-			    BIT(id % 32));
+	return mtk_reset_update_set_clr(rcdev, id, true);
 }
 
 static int mtk_reset_set_clr(struct reset_controller_dev *rcdev,
-- 
2.18.0

[PATCH v6 05/16] clk: mediatek: reset: Merge and revise reset register function

[Rex-BC Chen]

There are two versions for clock reset register control for MediaTek
SoCs. The old hardware is one bit per reset control, and does not
have separate registers for bit set, clear and read-back operations.
This matches the scheme supported by the simple reset driver.

However, because we need to use different data structure from
reset_simple_data, we can not use the operation of simple reset
driver.
For this reason, we keep the original functions and name this version
as "MTK_RST_SIMPLE".

In this patch:
- Add a version enumeration to separate different reset hardware.
- Merge the reset register function of simple and set_clr into one
  function "mtk_register_reset_controller".
- Rename input variable "num_regs" to "rst_bank_nr" to avoid
  confusion. This variable is used to define the quantity of reset bank.
- Document mtk_reset_version and mtk_register_reset_controller.

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/clk/mediatek/clk-mt2701-eth.c |  2 +-
 drivers/clk/mediatek/clk-mt2701-g3d.c |  2 +-
 drivers/clk/mediatek/clk-mt2701-hif.c |  2 +-
 drivers/clk/mediatek/clk-mt2701.c     |  4 +--
 drivers/clk/mediatek/clk-mt2712.c     |  4 +--
 drivers/clk/mediatek/clk-mt7622-eth.c |  2 +-
 drivers/clk/mediatek/clk-mt7622-hif.c |  4 +--
 drivers/clk/mediatek/clk-mt7622.c     |  4 +--
 drivers/clk/mediatek/clk-mt7629-eth.c |  2 +-
 drivers/clk/mediatek/clk-mt7629-hif.c |  4 +--
 drivers/clk/mediatek/clk-mt8135.c     |  4 +--
 drivers/clk/mediatek/clk-mt8173.c     |  4 +--
 drivers/clk/mediatek/clk-mt8183.c     |  3 +-
 drivers/clk/mediatek/reset.c          | 40 ++++++++++++---------------
 drivers/clk/mediatek/reset.h          | 24 +++++++++++++---
 15 files changed, 59 insertions(+), 46 deletions(-)

diff --git a/drivers/clk/mediatek/clk-mt2701-eth.c b/drivers/clk/mediatek/clk-mt2701-eth.c
index 100ff6ca609e..0270979ccc20 100644
--- a/drivers/clk/mediatek/clk-mt2701-eth.c
+++ b/drivers/clk/mediatek/clk-mt2701-eth.c
@@ -58,7 +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(node, 1, 0x34);
+	mtk_register_reset_controller(node, 1, 0x34, MTK_RST_SIMPLE);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt2701-g3d.c b/drivers/clk/mediatek/clk-mt2701-g3d.c
index 1328c112a38f..e406f863dcf0 100644
--- a/drivers/clk/mediatek/clk-mt2701-g3d.c
+++ b/drivers/clk/mediatek/clk-mt2701-g3d.c
@@ -52,7 +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(node, 1, 0xc);
+	mtk_register_reset_controller(node, 1, 0xc, MTK_RST_SIMPLE);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt2701-hif.c b/drivers/clk/mediatek/clk-mt2701-hif.c
index 61444881c539..352ca7a646c3 100644
--- a/drivers/clk/mediatek/clk-mt2701-hif.c
+++ b/drivers/clk/mediatek/clk-mt2701-hif.c
@@ -57,7 +57,7 @@ static int clk_mt2701_hif_probe(struct platform_device *pdev)
 		return r;
 	}
 
-	mtk_register_reset_controller(node, 1, 0x34);
+	mtk_register_reset_controller(node, 1, 0x34, MTK_RST_SIMPLE);
 
 	return 0;
 }
diff --git a/drivers/clk/mediatek/clk-mt2701.c b/drivers/clk/mediatek/clk-mt2701.c
index 1eb3e4563c3f..591479222e75 100644
--- a/drivers/clk/mediatek/clk-mt2701.c
+++ b/drivers/clk/mediatek/clk-mt2701.c
@@ -785,7 +785,7 @@ static int mtk_infrasys_init(struct platform_device *pdev)
 	if (r)
 		return r;
 
-	mtk_register_reset_controller(node, 2, 0x30);
+	mtk_register_reset_controller(node, 2, 0x30, MTK_RST_SIMPLE);
 
 	return 0;
 }
@@ -908,7 +908,7 @@ static int mtk_pericfg_init(struct platform_device *pdev)
 	if (r)
 		return r;
 
-	mtk_register_reset_controller(node, 2, 0x0);
+	mtk_register_reset_controller(node, 2, 0x0, MTK_RST_SIMPLE);
 
 	return 0;
 }
diff --git a/drivers/clk/mediatek/clk-mt2712.c b/drivers/clk/mediatek/clk-mt2712.c
index ff72b9ab945b..b311b43fbbd3 100644
--- a/drivers/clk/mediatek/clk-mt2712.c
+++ b/drivers/clk/mediatek/clk-mt2712.c
@@ -1361,7 +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(node, 2, 0x30);
+	mtk_register_reset_controller(node, 2, 0x30, MTK_RST_SIMPLE);
 
 	return r;
 }
@@ -1383,7 +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(node, 2, 0);
+	mtk_register_reset_controller(node, 2, 0, MTK_RST_SIMPLE);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7622-eth.c b/drivers/clk/mediatek/clk-mt7622-eth.c
index c9947dc7ba5a..bfdd09f3b72d 100644
--- a/drivers/clk/mediatek/clk-mt7622-eth.c
+++ b/drivers/clk/mediatek/clk-mt7622-eth.c
@@ -82,7 +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(node, 1, 0x34);
+	mtk_register_reset_controller(node, 1, 0x34, MTK_RST_SIMPLE);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7622-hif.c b/drivers/clk/mediatek/clk-mt7622-hif.c
index 628be0c9f888..892da27f6077 100644
--- a/drivers/clk/mediatek/clk-mt7622-hif.c
+++ b/drivers/clk/mediatek/clk-mt7622-hif.c
@@ -93,7 +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(node, 1, 0x34);
+	mtk_register_reset_controller(node, 1, 0x34, MTK_RST_SIMPLE);
 
 	return r;
 }
@@ -115,7 +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(node, 1, 0x34);
+	mtk_register_reset_controller(node, 1, 0x34, MTK_RST_SIMPLE);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7622.c b/drivers/clk/mediatek/clk-mt7622.c
index 0e1fb30a1e98..5bb3757f4217 100644
--- a/drivers/clk/mediatek/clk-mt7622.c
+++ b/drivers/clk/mediatek/clk-mt7622.c
@@ -663,7 +663,7 @@ static int mtk_infrasys_init(struct platform_device *pdev)
 	if (r)
 		return r;
 
-	mtk_register_reset_controller(node, 1, 0x30);
+	mtk_register_reset_controller(node, 1, 0x30, MTK_RST_SIMPLE);
 
 	return 0;
 }
@@ -714,7 +714,7 @@ static int mtk_pericfg_init(struct platform_device *pdev)
 
 	clk_prepare_enable(clk_data->clks[CLK_PERI_UART0_PD]);
 
-	mtk_register_reset_controller(node, 2, 0x0);
+	mtk_register_reset_controller(node, 2, 0x0, MTK_RST_SIMPLE);
 
 	return 0;
 }
diff --git a/drivers/clk/mediatek/clk-mt7629-eth.c b/drivers/clk/mediatek/clk-mt7629-eth.c
index 88279d0ea1a7..1c57589b39fd 100644
--- a/drivers/clk/mediatek/clk-mt7629-eth.c
+++ b/drivers/clk/mediatek/clk-mt7629-eth.c
@@ -92,7 +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(node, 1, 0x34);
+	mtk_register_reset_controller(node, 1, 0x34, MTK_RST_SIMPLE);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7629-hif.c b/drivers/clk/mediatek/clk-mt7629-hif.c
index 5c5b37207afb..6761151ca839 100644
--- a/drivers/clk/mediatek/clk-mt7629-hif.c
+++ b/drivers/clk/mediatek/clk-mt7629-hif.c
@@ -88,7 +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(node, 1, 0x34);
+	mtk_register_reset_controller(node, 1, 0x34, MTK_RST_SIMPLE);
 
 	return r;
 }
@@ -110,7 +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(node, 1, 0x34);
+	mtk_register_reset_controller(node, 1, 0x34, MTK_RST_SIMPLE);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt8135.c b/drivers/clk/mediatek/clk-mt8135.c
index 09ad272d51f1..d95b5dfa580c 100644
--- a/drivers/clk/mediatek/clk-mt8135.c
+++ b/drivers/clk/mediatek/clk-mt8135.c
@@ -559,7 +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, 2, 0x30);
+	mtk_register_reset_controller(node, 2, 0x30, MTK_RST_SIMPLE);
 }
 CLK_OF_DECLARE(mtk_infrasys, "mediatek,mt8135-infracfg", mtk_infrasys_init);
 
@@ -587,7 +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, 2, 0);
+	mtk_register_reset_controller(node, 2, 0, MTK_RST_SIMPLE);
 }
 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 46b7655feeaa..56120b148761 100644
--- a/drivers/clk/mediatek/clk-mt8173.c
+++ b/drivers/clk/mediatek/clk-mt8173.c
@@ -882,7 +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, 2, 0x30);
+	mtk_register_reset_controller(node, 2, 0x30, MTK_RST_SIMPLE);
 }
 CLK_OF_DECLARE(mtk_infrasys, "mediatek,mt8173-infracfg", mtk_infrasys_init);
 
@@ -910,7 +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, 2, 0);
+	mtk_register_reset_controller(node, 2, 0, MTK_RST_SIMPLE);
 }
 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 68496554dd3d..9b27f1ffc600 100644
--- a/drivers/clk/mediatek/clk-mt8183.c
+++ b/drivers/clk/mediatek/clk-mt8183.c
@@ -1239,7 +1239,8 @@ static int clk_mt8183_infra_probe(struct platform_device *pdev)
 		return r;
 	}
 
-	mtk_register_reset_controller_set_clr(node, 4, INFRA_RST0_SET_OFFSET);
+	mtk_register_reset_controller(node, 4,
+				      INFRA_RST0_SET_OFFSET, MTK_RST_SET_CLR);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
index 22fa9f09752c..a54a835c1d47 100644
--- a/drivers/clk/mediatek/reset.c
+++ b/drivers/clk/mediatek/reset.c
@@ -92,14 +92,25 @@ static const struct reset_control_ops mtk_reset_ops_set_clr = {
 	.reset = mtk_reset_set_clr,
 };
 
-static void mtk_register_reset_controller_common(struct device_node *np,
-						 unsigned int num_regs,
-						 int regofs,
-						 const struct reset_control_ops *reset_ops)
+void mtk_register_reset_controller(struct device_node *np,
+				   u32 rst_bank_nr, u16 reg_ofs, u8 version)
 {
 	struct mtk_reset *data;
 	int ret;
 	struct regmap *regmap;
+	const struct reset_control_ops *rcops = NULL;
+
+	switch (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", version);
+		return;
+	}
 
 	regmap = device_node_to_regmap(np);
 	if (IS_ERR(regmap)) {
@@ -112,32 +123,17 @@ static void mtk_register_reset_controller_common(struct device_node *np,
 		return;
 
 	data->regmap = regmap;
-	data->regofs = regofs;
+	data->regofs = reg_ofs;
 	data->rcdev.owner = THIS_MODULE;
-	data->rcdev.nr_resets = num_regs * 32;
-	data->rcdev.ops = reset_ops;
+	data->rcdev.nr_resets = rst_bank_nr * 32;
+	data->rcdev.ops = rcops;
 	data->rcdev.of_node = np;
 
 	ret = reset_controller_register(&data->rcdev);
 	if (ret) {
 		pr_err("could not register reset controller: %d\n", ret);
 		kfree(data);
-		return;
 	}
 }
 
-void mtk_register_reset_controller(struct device_node *np,
-				   unsigned int num_regs, int regofs)
-{
-	mtk_register_reset_controller_common(np, num_regs, regofs,
-					     &mtk_reset_ops);
-}
-
-void mtk_register_reset_controller_set_clr(struct device_node *np,
-					   unsigned int num_regs, int regofs)
-{
-	mtk_register_reset_controller_common(np, num_regs, regofs,
-					     &mtk_reset_ops_set_clr);
-}
-
 MODULE_LICENSE("GPL");
diff --git a/drivers/clk/mediatek/reset.h b/drivers/clk/mediatek/reset.h
index 764a8affe206..2a39eec9cff7 100644
--- a/drivers/clk/mediatek/reset.h
+++ b/drivers/clk/mediatek/reset.h
@@ -9,16 +9,32 @@
 #include <linux/reset-controller.h>
 #include <linux/types.h>
 
+/**
+ * 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_reset {
 	struct regmap *regmap;
 	int regofs;
 	struct reset_controller_dev rcdev;
 };
 
+/**
+ * mtk_register_reset_controller - Register MediaTek clock reset controller
+ * @np: Pointer to device node.
+ * @rst_bank_nr: Quantity of reset bank.
+ * @reg_ofs: Base offset of the reset register.
+ * @version: Version of MediaTek clock reset controller.
+ */
 void mtk_register_reset_controller(struct device_node *np,
-				   unsigned int num_regs, int regofs);
-
-void mtk_register_reset_controller_set_clr(struct device_node *np,
-					   unsigned int num_regs, int regofs);
+				   u32 rst_bank_nr, u16 reg_ofs, u8 version);
 
 #endif /* __DRV_CLK_MTK_RESET_H */
-- 
2.18.0

[PATCH v6 06/16] clk: mediatek: reset: Revise structure to control reset register

[Rex-BC Chen]

To declare the reset data easier, we add a strucure to do this instead
of using many input variables to mtk_register_reset_controller().

- Add mtk_clk_rst_desc to define the reset description when registering
  the reset controller.
- Rename "mtk_reset" to "mtk_clk_rst_data". We use it to store data of
  reset controller.
- Document mtk_clk_rst_desc and mtk_clk_rst_data.
- Modify the documentation of mtk_register_reset_controller.
- Extract container_of in update functions to to_mtk_clk_rst_data().

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/clk/mediatek/clk-mt2701-eth.c |  8 ++++++-
 drivers/clk/mediatek/clk-mt2701-g3d.c |  8 ++++++-
 drivers/clk/mediatek/clk-mt2701-hif.c |  8 ++++++-
 drivers/clk/mediatek/clk-mt2701.c     | 19 ++++++++++++++--
 drivers/clk/mediatek/clk-mt2712.c     | 19 ++++++++++++++--
 drivers/clk/mediatek/clk-mt7622-eth.c |  8 ++++++-
 drivers/clk/mediatek/clk-mt7622-hif.c | 10 +++++++--
 drivers/clk/mediatek/clk-mt7622.c     | 19 ++++++++++++++--
 drivers/clk/mediatek/clk-mt7629-eth.c |  8 ++++++-
 drivers/clk/mediatek/clk-mt7629-hif.c | 10 +++++++--
 drivers/clk/mediatek/clk-mt8135.c     | 19 ++++++++++++++--
 drivers/clk/mediatek/clk-mt8173.c     | 19 ++++++++++++++--
 drivers/clk/mediatek/clk-mt8183.c     |  9 ++++++--
 drivers/clk/mediatek/reset.c          | 32 ++++++++++++++++++---------
 drivers/clk/mediatek/reset.h          | 28 ++++++++++++++++++-----
 15 files changed, 186 insertions(+), 38 deletions(-)

diff --git a/drivers/clk/mediatek/clk-mt2701-eth.c b/drivers/clk/mediatek/clk-mt2701-eth.c
index 0270979ccc20..2cc35dfdbca7 100644
--- a/drivers/clk/mediatek/clk-mt2701-eth.c
+++ b/drivers/clk/mediatek/clk-mt2701-eth.c
@@ -36,6 +36,12 @@ static const struct mtk_gate eth_clks[] = {
 	GATE_ETH(CLK_ETHSYS_CRYPTO, "crypto_clk", "ethif_sel", 29),
 };
 
+static const struct mtk_clk_rst_desc clk_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_nr = 1,
+	.reg_ofs = 0x34,
+};
+
 static const struct of_device_id of_match_clk_mt2701_eth[] = {
 	{ .compatible = "mediatek,mt2701-ethsys", },
 	{}
@@ -58,7 +64,7 @@ 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(node, 1, 0x34, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt2701-g3d.c b/drivers/clk/mediatek/clk-mt2701-g3d.c
index e406f863dcf0..0905d5c12691 100644
--- a/drivers/clk/mediatek/clk-mt2701-g3d.c
+++ b/drivers/clk/mediatek/clk-mt2701-g3d.c
@@ -35,6 +35,12 @@ static const struct mtk_gate g3d_clks[] = {
 	GATE_G3D(CLK_G3DSYS_CORE, "g3d_core", "mfg_sel", 0),
 };
 
+static const struct mtk_clk_rst_desc clk_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_nr = 1,
+	.reg_ofs = 0xc,
+};
+
 static int clk_mt2701_g3dsys_init(struct platform_device *pdev)
 {
 	struct clk_onecell_data *clk_data;
@@ -52,7 +58,7 @@ 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(node, 1, 0xc, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt2701-hif.c b/drivers/clk/mediatek/clk-mt2701-hif.c
index 352ca7a646c3..24d5bac1bb9b 100644
--- a/drivers/clk/mediatek/clk-mt2701-hif.c
+++ b/drivers/clk/mediatek/clk-mt2701-hif.c
@@ -33,6 +33,12 @@ static const struct mtk_gate hif_clks[] = {
 	GATE_HIF(CLK_HIFSYS_PCIE2, "pcie2_clk", "ethpll_500m_ck", 26),
 };
 
+static const struct mtk_clk_rst_desc clk_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_nr = 1,
+	.reg_ofs = 0x34,
+};
+
 static const struct of_device_id of_match_clk_mt2701_hif[] = {
 	{ .compatible = "mediatek,mt2701-hifsys", },
 	{}
@@ -57,7 +63,7 @@ static int clk_mt2701_hif_probe(struct platform_device *pdev)
 		return r;
 	}
 
-	mtk_register_reset_controller(node, 1, 0x34, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc);
 
 	return 0;
 }
diff --git a/drivers/clk/mediatek/clk-mt2701.c b/drivers/clk/mediatek/clk-mt2701.c
index 591479222e75..70a934faa529 100644
--- a/drivers/clk/mediatek/clk-mt2701.c
+++ b/drivers/clk/mediatek/clk-mt2701.c
@@ -735,6 +735,21 @@ static const struct mtk_fixed_factor infra_fixed_divs[] = {
 	FACTOR(CLK_INFRA_CLK_13M, "clk13m", "clk26m", 1, 2),
 };
 
+static const struct mtk_clk_rst_desc clk_rst_desc[] = {
+	/* infrasys */
+	{
+		.version = MTK_RST_SIMPLE,
+		.rst_bank_nr = 2,
+		.reg_ofs = 0x30,
+	},
+	/* pericfg */
+	{
+		.version = MTK_RST_SIMPLE,
+		.rst_bank_nr = 2,
+		.reg_ofs = 0x0,
+	},
+};
+
 static struct clk_onecell_data *infra_clk_data;
 
 static void __init mtk_infrasys_init_early(struct device_node *node)
@@ -785,7 +800,7 @@ static int mtk_infrasys_init(struct platform_device *pdev)
 	if (r)
 		return r;
 
-	mtk_register_reset_controller(node, 2, 0x30, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc[0]);
 
 	return 0;
 }
@@ -908,7 +923,7 @@ static int mtk_pericfg_init(struct platform_device *pdev)
 	if (r)
 		return r;
 
-	mtk_register_reset_controller(node, 2, 0x0, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc[1]);
 
 	return 0;
 }
diff --git a/drivers/clk/mediatek/clk-mt2712.c b/drivers/clk/mediatek/clk-mt2712.c
index b311b43fbbd3..cef7c79788ec 100644
--- a/drivers/clk/mediatek/clk-mt2712.c
+++ b/drivers/clk/mediatek/clk-mt2712.c
@@ -1258,6 +1258,21 @@ static const struct mtk_pll_data plls[] = {
 		0, 31, 0x0300, 4, 0, 0, 0, 0x0304, 0),
 };
 
+static const struct mtk_clk_rst_desc clk_rst_desc[] = {
+	/* infra */
+	{
+		.version = MTK_RST_SIMPLE,
+		.rst_bank_nr = 2,
+		.reg_ofs = 0x30,
+	},
+	/* peri */
+	{
+		.version = MTK_RST_SIMPLE,
+		.rst_bank_nr = 2,
+		.reg_ofs = 0x0,
+	},
+};
+
 static int clk_mt2712_apmixed_probe(struct platform_device *pdev)
 {
 	struct clk_onecell_data *clk_data;
@@ -1361,7 +1376,7 @@ 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(node, 2, 0x30, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc[0]);
 
 	return r;
 }
@@ -1383,7 +1398,7 @@ 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(node, 2, 0, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc[1]);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7622-eth.c b/drivers/clk/mediatek/clk-mt7622-eth.c
index bfdd09f3b72d..b6da1871a1f9 100644
--- a/drivers/clk/mediatek/clk-mt7622-eth.c
+++ b/drivers/clk/mediatek/clk-mt7622-eth.c
@@ -65,6 +65,12 @@ static const struct mtk_gate sgmii_clks[] = {
 		   "ssusb_cdr_fb", 5),
 };
 
+static const struct mtk_clk_rst_desc clk_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_nr = 1,
+	.reg_ofs = 0x34,
+};
+
 static int clk_mt7622_ethsys_init(struct platform_device *pdev)
 {
 	struct clk_onecell_data *clk_data;
@@ -82,7 +88,7 @@ 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(node, 1, 0x34, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7622-hif.c b/drivers/clk/mediatek/clk-mt7622-hif.c
index 892da27f6077..c2841deb52a5 100644
--- a/drivers/clk/mediatek/clk-mt7622-hif.c
+++ b/drivers/clk/mediatek/clk-mt7622-hif.c
@@ -76,6 +76,12 @@ static const struct mtk_gate pcie_clks[] = {
 	GATE_PCIE(CLK_SATA_PM_EN, "sata_pm_en", "univpll2_d4", 30),
 };
 
+static const struct mtk_clk_rst_desc clk_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_nr = 1,
+	.reg_ofs = 0x34,
+};
+
 static int clk_mt7622_ssusbsys_init(struct platform_device *pdev)
 {
 	struct clk_onecell_data *clk_data;
@@ -93,7 +99,7 @@ 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(node, 1, 0x34, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc);
 
 	return r;
 }
@@ -115,7 +121,7 @@ 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(node, 1, 0x34, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7622.c b/drivers/clk/mediatek/clk-mt7622.c
index 5bb3757f4217..880e752527a9 100644
--- a/drivers/clk/mediatek/clk-mt7622.c
+++ b/drivers/clk/mediatek/clk-mt7622.c
@@ -610,6 +610,21 @@ static struct mtk_composite peri_muxes[] = {
 	MUX(CLK_PERIBUS_SEL, "peribus_ck_sel", peribus_ck_parents, 0x05C, 0, 1),
 };
 
+static const struct mtk_clk_rst_desc clk_rst_desc[] = {
+	/* infrasys */
+	{
+		.version = MTK_RST_SIMPLE,
+		.rst_bank_nr = 1,
+		.reg_ofs = 0x30,
+	},
+	/* pericfg */
+	{
+		.version = MTK_RST_SIMPLE,
+		.rst_bank_nr = 2,
+		.reg_ofs = 0x0,
+	},
+};
+
 static int mtk_topckgen_init(struct platform_device *pdev)
 {
 	struct clk_onecell_data *clk_data;
@@ -663,7 +678,7 @@ static int mtk_infrasys_init(struct platform_device *pdev)
 	if (r)
 		return r;
 
-	mtk_register_reset_controller(node, 1, 0x30, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc[0]);
 
 	return 0;
 }
@@ -714,7 +729,7 @@ static int mtk_pericfg_init(struct platform_device *pdev)
 
 	clk_prepare_enable(clk_data->clks[CLK_PERI_UART0_PD]);
 
-	mtk_register_reset_controller(node, 2, 0x0, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc[1]);
 
 	return 0;
 }
diff --git a/drivers/clk/mediatek/clk-mt7629-eth.c b/drivers/clk/mediatek/clk-mt7629-eth.c
index 1c57589b39fd..e054aa1e1479 100644
--- a/drivers/clk/mediatek/clk-mt7629-eth.c
+++ b/drivers/clk/mediatek/clk-mt7629-eth.c
@@ -76,6 +76,12 @@ static const struct mtk_gate sgmii_clks[2][4] = {
 	}
 };
 
+static const struct mtk_clk_rst_desc clk_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_nr = 1,
+	.reg_ofs = 0x34,
+};
+
 static int clk_mt7629_ethsys_init(struct platform_device *pdev)
 {
 	struct clk_onecell_data *clk_data;
@@ -92,7 +98,7 @@ 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(node, 1, 0x34, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7629-hif.c b/drivers/clk/mediatek/clk-mt7629-hif.c
index 6761151ca839..ab085092041e 100644
--- a/drivers/clk/mediatek/clk-mt7629-hif.c
+++ b/drivers/clk/mediatek/clk-mt7629-hif.c
@@ -71,6 +71,12 @@ static const struct mtk_gate pcie_clks[] = {
 	GATE_PCIE(CLK_PCIE_P0_PIPE_EN, "pcie_p0_pipe_en", "pcie0_pipe_en", 23),
 };
 
+static const struct mtk_clk_rst_desc clk_rst_desc = {
+	.version = MTK_RST_SIMPLE,
+	.rst_bank_nr = 1,
+	.reg_ofs = 0x34,
+};
+
 static int clk_mt7629_ssusbsys_init(struct platform_device *pdev)
 {
 	struct clk_onecell_data *clk_data;
@@ -88,7 +94,7 @@ 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(node, 1, 0x34, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc);
 
 	return r;
 }
@@ -110,7 +116,7 @@ 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(node, 1, 0x34, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt8135.c b/drivers/clk/mediatek/clk-mt8135.c
index d95b5dfa580c..a4cfc094895c 100644
--- a/drivers/clk/mediatek/clk-mt8135.c
+++ b/drivers/clk/mediatek/clk-mt8135.c
@@ -514,6 +514,21 @@ static const struct mtk_composite peri_clks[] __initconst = {
 	MUX(CLK_PERI_UART3_SEL, "uart3_ck_sel", uart_ck_sel_parents, 0x40c, 3, 1),
 };
 
+static const struct mtk_clk_rst_desc clk_rst_desc[] = {
+	/* infrasys */
+	{
+		.version = MTK_RST_SIMPLE,
+		.rst_bank_nr = 2,
+		.reg_ofs = 0x30,
+	},
+	/* pericfg */
+	{
+		.version = MTK_RST_SIMPLE,
+		.rst_bank_nr = 2,
+		.reg_ofs = 0x0,
+	}
+};
+
 static void __init mtk_topckgen_init(struct device_node *node)
 {
 	struct clk_onecell_data *clk_data;
@@ -559,7 +574,7 @@ 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, 2, 0x30, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc[0]);
 }
 CLK_OF_DECLARE(mtk_infrasys, "mediatek,mt8135-infracfg", mtk_infrasys_init);
 
@@ -587,7 +602,7 @@ 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, 2, 0, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc[1]);
 }
 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 56120b148761..cba1495b2a67 100644
--- a/drivers/clk/mediatek/clk-mt8173.c
+++ b/drivers/clk/mediatek/clk-mt8173.c
@@ -819,6 +819,21 @@ static const struct mtk_gate venclt_clks[] __initconst = {
 	GATE_VENCLT(CLK_VENCLT_CKE1, "venclt_cke1", "venclt_sel", 4),
 };
 
+static const struct mtk_clk_rst_desc clk_rst_desc[] = {
+	/* infrasys */
+	{
+		.version = MTK_RST_SIMPLE,
+		.rst_bank_nr = 2,
+		.reg_ofs = 0x30,
+	},
+	/* pericfg */
+	{
+		.version = MTK_RST_SIMPLE,
+		.rst_bank_nr = 2,
+		.reg_ofs = 0x0,
+	}
+};
+
 static struct clk_onecell_data *mt8173_top_clk_data __initdata;
 static struct clk_onecell_data *mt8173_pll_clk_data __initdata;
 
@@ -882,7 +897,7 @@ 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, 2, 0x30, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc[0]);
 }
 CLK_OF_DECLARE(mtk_infrasys, "mediatek,mt8173-infracfg", mtk_infrasys_init);
 
@@ -910,7 +925,7 @@ 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, 2, 0, MTK_RST_SIMPLE);
+	mtk_register_reset_controller(node, &clk_rst_desc[1]);
 }
 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 9b27f1ffc600..3517eca5ee83 100644
--- a/drivers/clk/mediatek/clk-mt8183.c
+++ b/drivers/clk/mediatek/clk-mt8183.c
@@ -1153,6 +1153,12 @@ static const struct mtk_pll_data plls[] = {
 		0, 0, 32, 8, 0x02B4, 1, 0x02BC, 0x0014, 1, 0x02B8, 0, 0x02B4),
 };
 
+static const struct mtk_clk_rst_desc clk_rst_desc = {
+	.version = MTK_RST_SET_CLR,
+	.rst_bank_nr = 4,
+	.reg_ofs = INFRA_RST0_SET_OFFSET,
+};
+
 static int clk_mt8183_apmixed_probe(struct platform_device *pdev)
 {
 	struct clk_onecell_data *clk_data;
@@ -1239,8 +1245,7 @@ static int clk_mt8183_infra_probe(struct platform_device *pdev)
 		return r;
 	}
 
-	mtk_register_reset_controller(node, 4,
-				      INFRA_RST0_SET_OFFSET, MTK_RST_SET_CLR);
+	mtk_register_reset_controller(node, &clk_rst_desc);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
index a54a835c1d47..47bc6b1842fd 100644
--- a/drivers/clk/mediatek/reset.c
+++ b/drivers/clk/mediatek/reset.c
@@ -12,14 +12,19 @@
 
 #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_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
+	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->regofs + ((id / 32) << 2),
+				  data->desc->reg_ofs + ((id / 32) << 2),
 				  BIT(id % 32), val);
 }
 
@@ -49,11 +54,11 @@ static int mtk_reset(struct reset_controller_dev *rcdev, unsigned long id)
 static int mtk_reset_update_set_clr(struct reset_controller_dev *rcdev,
 				    unsigned long id, bool deassert)
 {
-	struct mtk_reset *data = container_of(rcdev, struct mtk_reset, rcdev);
+	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->regofs + ((id / 32) << 4) + deassert_ofs,
+			    data->desc->reg_ofs + ((id / 32) << 4) + deassert_ofs,
 			    BIT(id % 32));
 }
 
@@ -93,14 +98,19 @@ static const struct reset_control_ops mtk_reset_ops_set_clr = {
 };
 
 void mtk_register_reset_controller(struct device_node *np,
-				   u32 rst_bank_nr, u16 reg_ofs, u8 version)
+				   const struct mtk_clk_rst_desc *desc)
 {
-	struct mtk_reset *data;
-	int ret;
 	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;
+	}
 
-	switch (version) {
+	switch (desc->version) {
 	case MTK_RST_SIMPLE:
 		rcops = &mtk_reset_ops;
 		break;
@@ -108,7 +118,7 @@ void mtk_register_reset_controller(struct device_node *np,
 		rcops = &mtk_reset_ops_set_clr;
 		break;
 	default:
-		pr_err("Unknown reset version %d\n", version);
+		pr_err("Unknown reset version %d\n", desc->version);
 		return;
 	}
 
@@ -122,10 +132,10 @@ void mtk_register_reset_controller(struct device_node *np,
 	if (!data)
 		return;
 
+	data->desc = desc;
 	data->regmap = regmap;
-	data->regofs = reg_ofs;
 	data->rcdev.owner = THIS_MODULE;
-	data->rcdev.nr_resets = rst_bank_nr * 32;
+	data->rcdev.nr_resets = desc->rst_bank_nr * 32;
 	data->rcdev.ops = rcops;
 	data->rcdev.of_node = np;
 
diff --git a/drivers/clk/mediatek/reset.h b/drivers/clk/mediatek/reset.h
index 2a39eec9cff7..91358e8cb851 100644
--- a/drivers/clk/mediatek/reset.h
+++ b/drivers/clk/mediatek/reset.h
@@ -21,20 +21,36 @@ enum mtk_reset_version {
 	MTK_RST_MAX,
 };
 
-struct mtk_reset {
+/**
+ * struct mtk_clk_rst_desc - Description of MediaTek clock reset.
+ * @version: Reset version which is defined in enum mtk_reset_version.
+ * @reg_ofs: Base offset of the reset register.
+ * @rst_bank_nr: Quantity of reset bank.
+ */
+struct mtk_clk_rst_desc {
+	u8 version;
+	u16 reg_ofs;
+	u32 rst_bank_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;
-	int regofs;
 	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.
- * @rst_bank_nr: Quantity of reset bank.
- * @reg_ofs: Base offset of the reset register.
- * @version: Version of MediaTek clock reset controller.
+ * @desc: Constant pointer to description of clock reset.
  */
 void mtk_register_reset_controller(struct device_node *np,
-				   u32 rst_bank_nr, u16 reg_ofs, u8 version);
+				   const struct mtk_clk_rst_desc *desc);
 
 #endif /* __DRV_CLK_MTK_RESET_H */
-- 
2.18.0

[PATCH v6 07/16] clk: mediatek: reset: Support nonsequence base offsets of reset registers

[Rex-BC Chen]

The bank offsets are not serial for all reset registers.
For example, there are five infra reset banks for MT8192: 0x120, 0x130,
0x140, 0x150 and 0x730.

To support this,
- Change reg_ofs to rst_bank_ofs which is a pointer to base offsets of
  the reset register.
- Add a new define RST_NR_PER_BANK to define reset number for each
  reset bank.

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/clk/mediatek/clk-mt2701-eth.c |  6 ++++--
 drivers/clk/mediatek/clk-mt2701-g3d.c |  6 ++++--
 drivers/clk/mediatek/clk-mt2701-hif.c |  6 ++++--
 drivers/clk/mediatek/clk-mt2701.c     | 11 +++++++----
 drivers/clk/mediatek/clk-mt2712.c     | 11 +++++++----
 drivers/clk/mediatek/clk-mt7622-eth.c |  6 ++++--
 drivers/clk/mediatek/clk-mt7622-hif.c |  6 ++++--
 drivers/clk/mediatek/clk-mt7622.c     | 11 +++++++----
 drivers/clk/mediatek/clk-mt7629-eth.c |  6 ++++--
 drivers/clk/mediatek/clk-mt7629-hif.c |  6 ++++--
 drivers/clk/mediatek/clk-mt8135.c     | 11 +++++++----
 drivers/clk/mediatek/clk-mt8173.c     | 11 +++++++----
 drivers/clk/mediatek/clk-mt8183.c     | 14 ++++++++++++--
 drivers/clk/mediatek/reset.c          | 11 ++++++-----
 drivers/clk/mediatek/reset.h          |  6 ++++--
 15 files changed, 85 insertions(+), 43 deletions(-)

diff --git a/drivers/clk/mediatek/clk-mt2701-eth.c b/drivers/clk/mediatek/clk-mt2701-eth.c
index 2cc35dfdbca7..0ae4bce3bb37 100644
--- a/drivers/clk/mediatek/clk-mt2701-eth.c
+++ b/drivers/clk/mediatek/clk-mt2701-eth.c
@@ -36,10 +36,12 @@ 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_nr = 1,
-	.reg_ofs = 0x34,
+	.rst_bank_ofs = rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(rst_ofs),
 };
 
 static const struct of_device_id of_match_clk_mt2701_eth[] = {
diff --git a/drivers/clk/mediatek/clk-mt2701-g3d.c b/drivers/clk/mediatek/clk-mt2701-g3d.c
index 0905d5c12691..8d2053517ddc 100644
--- a/drivers/clk/mediatek/clk-mt2701-g3d.c
+++ b/drivers/clk/mediatek/clk-mt2701-g3d.c
@@ -35,10 +35,12 @@ 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_nr = 1,
-	.reg_ofs = 0xc,
+	.rst_bank_ofs = rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(rst_ofs),
 };
 
 static int clk_mt2701_g3dsys_init(struct platform_device *pdev)
diff --git a/drivers/clk/mediatek/clk-mt2701-hif.c b/drivers/clk/mediatek/clk-mt2701-hif.c
index 24d5bac1bb9b..e40865a6f45e 100644
--- a/drivers/clk/mediatek/clk-mt2701-hif.c
+++ b/drivers/clk/mediatek/clk-mt2701-hif.c
@@ -33,10 +33,12 @@ 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_nr = 1,
-	.reg_ofs = 0x34,
+	.rst_bank_ofs = rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(rst_ofs),
 };
 
 static const struct of_device_id of_match_clk_mt2701_hif[] = {
diff --git a/drivers/clk/mediatek/clk-mt2701.c b/drivers/clk/mediatek/clk-mt2701.c
index 70a934faa529..572d62f76e96 100644
--- a/drivers/clk/mediatek/clk-mt2701.c
+++ b/drivers/clk/mediatek/clk-mt2701.c
@@ -735,18 +735,21 @@ 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_nr = 2,
-		.reg_ofs = 0x30,
+		.rst_bank_ofs = infrasys_rst_ofs,
+		.rst_bank_nr = ARRAY_SIZE(infrasys_rst_ofs),
 	},
 	/* pericfg */
 	{
 		.version = MTK_RST_SIMPLE,
-		.rst_bank_nr = 2,
-		.reg_ofs = 0x0,
+		.rst_bank_ofs = pericfg_rst_ofs,
+		.rst_bank_nr = ARRAY_SIZE(pericfg_rst_ofs),
 	},
 };
 
diff --git a/drivers/clk/mediatek/clk-mt2712.c b/drivers/clk/mediatek/clk-mt2712.c
index cef7c79788ec..9eb8866ec77a 100644
--- a/drivers/clk/mediatek/clk-mt2712.c
+++ b/drivers/clk/mediatek/clk-mt2712.c
@@ -1258,18 +1258,21 @@ 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_nr = 2,
-		.reg_ofs = 0x30,
+		.rst_bank_ofs = infrasys_rst_ofs,
+		.rst_bank_nr = ARRAY_SIZE(infrasys_rst_ofs),
 	},
 	/* peri */
 	{
 		.version = MTK_RST_SIMPLE,
-		.rst_bank_nr = 2,
-		.reg_ofs = 0x0,
+		.rst_bank_ofs = pericfg_rst_ofs,
+		.rst_bank_nr = ARRAY_SIZE(pericfg_rst_ofs),
 	},
 };
 
diff --git a/drivers/clk/mediatek/clk-mt7622-eth.c b/drivers/clk/mediatek/clk-mt7622-eth.c
index b6da1871a1f9..b58fe61a8443 100644
--- a/drivers/clk/mediatek/clk-mt7622-eth.c
+++ b/drivers/clk/mediatek/clk-mt7622-eth.c
@@ -65,10 +65,12 @@ 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_nr = 1,
-	.reg_ofs = 0x34,
+	.rst_bank_ofs = rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(rst_ofs),
 };
 
 static int clk_mt7622_ethsys_init(struct platform_device *pdev)
diff --git a/drivers/clk/mediatek/clk-mt7622-hif.c b/drivers/clk/mediatek/clk-mt7622-hif.c
index c2841deb52a5..1ee79d4837a4 100644
--- a/drivers/clk/mediatek/clk-mt7622-hif.c
+++ b/drivers/clk/mediatek/clk-mt7622-hif.c
@@ -76,10 +76,12 @@ 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_nr = 1,
-	.reg_ofs = 0x34,
+	.rst_bank_ofs = rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(rst_ofs),
 };
 
 static int clk_mt7622_ssusbsys_init(struct platform_device *pdev)
diff --git a/drivers/clk/mediatek/clk-mt7622.c b/drivers/clk/mediatek/clk-mt7622.c
index 880e752527a9..8ebd66dcb946 100644
--- a/drivers/clk/mediatek/clk-mt7622.c
+++ b/drivers/clk/mediatek/clk-mt7622.c
@@ -610,18 +610,21 @@ 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_nr = 1,
-		.reg_ofs = 0x30,
+		.rst_bank_ofs = infrasys_rst_ofs,
+		.rst_bank_nr = ARRAY_SIZE(infrasys_rst_ofs),
 	},
 	/* pericfg */
 	{
 		.version = MTK_RST_SIMPLE,
-		.rst_bank_nr = 2,
-		.reg_ofs = 0x0,
+		.rst_bank_ofs = pericfg_rst_ofs,
+		.rst_bank_nr = ARRAY_SIZE(pericfg_rst_ofs),
 	},
 };
 
diff --git a/drivers/clk/mediatek/clk-mt7629-eth.c b/drivers/clk/mediatek/clk-mt7629-eth.c
index e054aa1e1479..56ff7c1f6ec1 100644
--- a/drivers/clk/mediatek/clk-mt7629-eth.c
+++ b/drivers/clk/mediatek/clk-mt7629-eth.c
@@ -76,10 +76,12 @@ 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_nr = 1,
-	.reg_ofs = 0x34,
+	.rst_bank_ofs = rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(rst_ofs),
 };
 
 static int clk_mt7629_ethsys_init(struct platform_device *pdev)
diff --git a/drivers/clk/mediatek/clk-mt7629-hif.c b/drivers/clk/mediatek/clk-mt7629-hif.c
index ab085092041e..fc12110b04fc 100644
--- a/drivers/clk/mediatek/clk-mt7629-hif.c
+++ b/drivers/clk/mediatek/clk-mt7629-hif.c
@@ -71,10 +71,12 @@ 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_nr = 1,
-	.reg_ofs = 0x34,
+	.rst_bank_ofs = rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(rst_ofs),
 };
 
 static int clk_mt7629_ssusbsys_init(struct platform_device *pdev)
diff --git a/drivers/clk/mediatek/clk-mt8135.c b/drivers/clk/mediatek/clk-mt8135.c
index a4cfc094895c..8b7fb5e2c5c2 100644
--- a/drivers/clk/mediatek/clk-mt8135.c
+++ b/drivers/clk/mediatek/clk-mt8135.c
@@ -514,18 +514,21 @@ 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_nr = 2,
-		.reg_ofs = 0x30,
+		.rst_bank_ofs = infrasys_rst_ofs,
+		.rst_bank_nr = ARRAY_SIZE(infrasys_rst_ofs),
 	},
 	/* pericfg */
 	{
 		.version = MTK_RST_SIMPLE,
-		.rst_bank_nr = 2,
-		.reg_ofs = 0x0,
+		.rst_bank_ofs = pericfg_rst_ofs,
+		.rst_bank_nr = ARRAY_SIZE(pericfg_rst_ofs),
 	}
 };
 
diff --git a/drivers/clk/mediatek/clk-mt8173.c b/drivers/clk/mediatek/clk-mt8173.c
index cba1495b2a67..4228ee56da37 100644
--- a/drivers/clk/mediatek/clk-mt8173.c
+++ b/drivers/clk/mediatek/clk-mt8173.c
@@ -819,18 +819,21 @@ 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_nr = 2,
-		.reg_ofs = 0x30,
+		.rst_bank_ofs = infrasys_rst_ofs,
+		.rst_bank_nr = ARRAY_SIZE(infrasys_rst_ofs),
 	},
 	/* pericfg */
 	{
 		.version = MTK_RST_SIMPLE,
-		.rst_bank_nr = 2,
-		.reg_ofs = 0x0,
+		.rst_bank_ofs = pericfg_rst_ofs,
+		.rst_bank_nr = ARRAY_SIZE(pericfg_rst_ofs),
 	}
 };
 
diff --git a/drivers/clk/mediatek/clk-mt8183.c b/drivers/clk/mediatek/clk-mt8183.c
index 3517eca5ee83..de4ba5e055ca 100644
--- a/drivers/clk/mediatek/clk-mt8183.c
+++ b/drivers/clk/mediatek/clk-mt8183.c
@@ -20,6 +20,9 @@
 
 /* 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
 
 static DEFINE_SPINLOCK(mt8183_clk_lock);
 
@@ -1153,10 +1156,17 @@ 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_nr = 4,
-	.reg_ofs = INFRA_RST0_SET_OFFSET,
+	.rst_bank_ofs = infra_rst_ofs,
+	.rst_bank_nr = ARRAY_SIZE(infra_rst_ofs),
 };
 
 static int clk_mt8183_apmixed_probe(struct platform_device *pdev)
diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
index 47bc6b1842fd..11b2f74f121d 100644
--- a/drivers/clk/mediatek/reset.c
+++ b/drivers/clk/mediatek/reset.c
@@ -24,8 +24,8 @@ static int mtk_reset_update(struct reset_controller_dev *rcdev,
 	unsigned int val = deassert ? 0 : ~0;
 
 	return regmap_update_bits(data->regmap,
-				  data->desc->reg_ofs + ((id / 32) << 2),
-				  BIT(id % 32), val);
+				  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,
@@ -58,8 +58,9 @@ static int mtk_reset_update_set_clr(struct reset_controller_dev *rcdev,
 	unsigned int deassert_ofs = deassert ? 0x4 : 0;
 
 	return regmap_write(data->regmap,
-			    data->desc->reg_ofs + ((id / 32) << 4) + deassert_ofs,
-			    BIT(id % 32));
+			    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,
@@ -135,7 +136,7 @@ void mtk_register_reset_controller(struct device_node *np,
 	data->desc = desc;
 	data->regmap = regmap;
 	data->rcdev.owner = THIS_MODULE;
-	data->rcdev.nr_resets = desc->rst_bank_nr * 32;
+	data->rcdev.nr_resets = desc->rst_bank_nr * RST_NR_PER_BANK;
 	data->rcdev.ops = rcops;
 	data->rcdev.of_node = np;
 
diff --git a/drivers/clk/mediatek/reset.h b/drivers/clk/mediatek/reset.h
index 91358e8cb851..482df8012c5c 100644
--- a/drivers/clk/mediatek/reset.h
+++ b/drivers/clk/mediatek/reset.h
@@ -9,6 +9,8 @@
 #include <linux/reset-controller.h>
 #include <linux/types.h>
 
+#define RST_NR_PER_BANK 32
+
 /**
  * enum mtk_reset_version - Version of MediaTek clock reset controller.
  * @MTK_RST_SIMPLE: Use the same registers for bit set and clear.
@@ -24,12 +26,12 @@ enum mtk_reset_version {
 /**
  * struct mtk_clk_rst_desc - Description of MediaTek clock reset.
  * @version: Reset version which is defined in enum mtk_reset_version.
- * @reg_ofs: Base offset of the reset register.
+ * @rst_bank_ofs: Pointer to an array containing base offsets of the reset register.
  * @rst_bank_nr: Quantity of reset bank.
  */
 struct mtk_clk_rst_desc {
 	u8 version;
-	u16 reg_ofs;
+	u16 *rst_bank_ofs;
 	u32 rst_bank_nr;
 };
 
-- 
2.18.0

[PATCH v6 08/16] clk: mediatek: reset: Support inuput argument index mode

[Rex-BC Chen]

There is a large number of mediatek infra reset bits, but we do not use
all of them. In addition, the proper input argement of reset controller
soulde be index.
Therefore, to be compatible with previous drivers and usage, we add
description variables to store the ids which can mapping to index.

To use this mode, we need to put the id in rst_idx_map to map from
index to ids. For example, if we want to input index 1 (this index
is used to set bank 1 bit 14) for svs, we need to declare the reset
controller like this:

In drivers:
static u16 rst_ofs[] = {
        0x120, 0x130, 0x140, 0x150, 0x730,
};

static u16 rst_idx_map[] = {
        0 * 32 + 0,
        1 * 32 + 14,
        ....
};

static const struct mtk_clk_rst_desc clk_rst_desc = {
        .version = MTK_RST_SET_CLR,
        .rst_bank_ofs = rst_ofs,
        .rst_bank_nr = ARRAY_SIZE(rst_ofs),
        .rst_idx_map = rst_idx_map,
        .rst_idx_map_nr = ARRAY_SIZE(rst_idx_map),
};

In dts:
svs: {
        ...
        resets = <&infra 1>;
        ...
};

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
---
 drivers/clk/mediatek/reset.c | 21 ++++++++++++++++++++-
 drivers/clk/mediatek/reset.h |  5 +++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
index 11b2f74f121d..89e617ea6393 100644
--- a/drivers/clk/mediatek/reset.c
+++ b/drivers/clk/mediatek/reset.c
@@ -98,6 +98,18 @@ static const struct reset_control_ops mtk_reset_ops_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]];
+}
+
 void mtk_register_reset_controller(struct device_node *np,
 				   const struct mtk_clk_rst_desc *desc)
 {
@@ -136,10 +148,17 @@ void mtk_register_reset_controller(struct device_node *np,
 	data->desc = desc;
 	data->regmap = regmap;
 	data->rcdev.owner = THIS_MODULE;
-	data->rcdev.nr_resets = desc->rst_bank_nr * RST_NR_PER_BANK;
 	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);
diff --git a/drivers/clk/mediatek/reset.h b/drivers/clk/mediatek/reset.h
index 482df8012c5c..47635d964c69 100644
--- a/drivers/clk/mediatek/reset.h
+++ b/drivers/clk/mediatek/reset.h
@@ -28,11 +28,16 @@ enum mtk_reset_version {
  * @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;
 };
 
 /**
-- 
2.18.0

[PATCH v6 09/16] clk: mediatek: reset: Change return type for clock reset register function

[Rex-BC Chen]

To deal with error handling, we change the function return type from
void to int for mtk_clk_register_rst_ctrl().

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/clk/mediatek/reset.c | 15 +++++++++------
 drivers/clk/mediatek/reset.h |  6 ++++--
 2 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
index 89e617ea6393..b9718f0f9d16 100644
--- a/drivers/clk/mediatek/reset.c
+++ b/drivers/clk/mediatek/reset.c
@@ -110,8 +110,8 @@ static int reset_xlate(struct reset_controller_dev *rcdev,
 	return data->desc->rst_idx_map[reset_spec->args[0]];
 }
 
-void mtk_register_reset_controller(struct device_node *np,
-				   const struct mtk_clk_rst_desc *desc)
+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;
@@ -120,7 +120,7 @@ void mtk_register_reset_controller(struct device_node *np,
 
 	if (!desc) {
 		pr_err("mtk clock reset desc is NULL\n");
-		return;
+		return -EINVAL;
 	}
 
 	switch (desc->version) {
@@ -132,18 +132,18 @@ void mtk_register_reset_controller(struct device_node *np,
 		break;
 	default:
 		pr_err("Unknown reset version %d\n", desc->version);
-		return;
+		return -EINVAL;
 	}
 
 	regmap = device_node_to_regmap(np);
 	if (IS_ERR(regmap)) {
 		pr_err("Cannot find regmap for %pOF: %pe\n", np, regmap);
-		return;
+		return -EINVAL;
 	}
 
 	data = kzalloc(sizeof(*data), GFP_KERNEL);
 	if (!data)
-		return;
+		return -ENOMEM;
 
 	data->desc = desc;
 	data->regmap = regmap;
@@ -163,7 +163,10 @@ void mtk_register_reset_controller(struct device_node *np,
 	if (ret) {
 		pr_err("could not register reset controller: %d\n", ret);
 		kfree(data);
+		return ret;
 	}
+
+	return 0;
 }
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/clk/mediatek/reset.h b/drivers/clk/mediatek/reset.h
index 47635d964c69..cc67934c69e2 100644
--- a/drivers/clk/mediatek/reset.h
+++ b/drivers/clk/mediatek/reset.h
@@ -56,8 +56,10 @@ struct mtk_clk_rst_data {
  * 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.
  */
-void mtk_register_reset_controller(struct device_node *np,
-				   const struct mtk_clk_rst_desc *desc);
+int mtk_register_reset_controller(struct device_node *np,
+				  const struct mtk_clk_rst_desc *desc);
 
 #endif /* __DRV_CLK_MTK_RESET_H */
-- 
2.18.0

[PATCH v6 10/16] clk: mediatek: reset: Add new register reset function with device

[Rex-BC Chen]

Using device to register reset controller is a better implementation in
current drivers. Howerver, some clock drviers of MediaTek only provide
device_node.

Therefore, we still remain the register reset function with device_node
and add a new function with device to register reset controller.

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/clk/mediatek/clk-mt2701-eth.c |  2 +-
 drivers/clk/mediatek/clk-mt2701-g3d.c |  2 +-
 drivers/clk/mediatek/clk-mt2701-hif.c |  2 +-
 drivers/clk/mediatek/clk-mt2701.c     |  4 +-
 drivers/clk/mediatek/clk-mt2712.c     |  4 +-
 drivers/clk/mediatek/clk-mt7622-eth.c |  2 +-
 drivers/clk/mediatek/clk-mt7622-hif.c |  4 +-
 drivers/clk/mediatek/clk-mt7622.c     |  4 +-
 drivers/clk/mediatek/clk-mt7629-eth.c |  2 +-
 drivers/clk/mediatek/clk-mt7629-hif.c |  4 +-
 drivers/clk/mediatek/clk-mt8183.c     |  2 +-
 drivers/clk/mediatek/reset.c          | 60 +++++++++++++++++++++++++++
 drivers/clk/mediatek/reset.h          | 10 +++++
 13 files changed, 86 insertions(+), 16 deletions(-)

diff --git a/drivers/clk/mediatek/clk-mt2701-eth.c b/drivers/clk/mediatek/clk-mt2701-eth.c
index 0ae4bce3bb37..38fd15c8f6f6 100644
--- a/drivers/clk/mediatek/clk-mt2701-eth.c
+++ b/drivers/clk/mediatek/clk-mt2701-eth.c
@@ -66,7 +66,7 @@ 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(node, &clk_rst_desc);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt2701-g3d.c b/drivers/clk/mediatek/clk-mt2701-g3d.c
index 8d2053517ddc..d5ff16e02d0e 100644
--- a/drivers/clk/mediatek/clk-mt2701-g3d.c
+++ b/drivers/clk/mediatek/clk-mt2701-g3d.c
@@ -60,7 +60,7 @@ 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(node, &clk_rst_desc);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt2701-hif.c b/drivers/clk/mediatek/clk-mt2701-hif.c
index e40865a6f45e..b642109e7fa8 100644
--- a/drivers/clk/mediatek/clk-mt2701-hif.c
+++ b/drivers/clk/mediatek/clk-mt2701-hif.c
@@ -65,7 +65,7 @@ static int clk_mt2701_hif_probe(struct platform_device *pdev)
 		return r;
 	}
 
-	mtk_register_reset_controller(node, &clk_rst_desc);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
 
 	return 0;
 }
diff --git a/drivers/clk/mediatek/clk-mt2701.c b/drivers/clk/mediatek/clk-mt2701.c
index 572d62f76e96..1c3afa1fdfde 100644
--- a/drivers/clk/mediatek/clk-mt2701.c
+++ b/drivers/clk/mediatek/clk-mt2701.c
@@ -803,7 +803,7 @@ static int mtk_infrasys_init(struct platform_device *pdev)
 	if (r)
 		return r;
 
-	mtk_register_reset_controller(node, &clk_rst_desc[0]);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc[0]);
 
 	return 0;
 }
@@ -926,7 +926,7 @@ static int mtk_pericfg_init(struct platform_device *pdev)
 	if (r)
 		return r;
 
-	mtk_register_reset_controller(node, &clk_rst_desc[1]);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc[1]);
 
 	return 0;
 }
diff --git a/drivers/clk/mediatek/clk-mt2712.c b/drivers/clk/mediatek/clk-mt2712.c
index 9eb8866ec77a..a01e5d53e68d 100644
--- a/drivers/clk/mediatek/clk-mt2712.c
+++ b/drivers/clk/mediatek/clk-mt2712.c
@@ -1379,7 +1379,7 @@ 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(node, &clk_rst_desc[0]);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc[0]);
 
 	return r;
 }
@@ -1401,7 +1401,7 @@ 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(node, &clk_rst_desc[1]);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc[1]);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7622-eth.c b/drivers/clk/mediatek/clk-mt7622-eth.c
index b58fe61a8443..ecaf0717947d 100644
--- a/drivers/clk/mediatek/clk-mt7622-eth.c
+++ b/drivers/clk/mediatek/clk-mt7622-eth.c
@@ -90,7 +90,7 @@ 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(node, &clk_rst_desc);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7622-hif.c b/drivers/clk/mediatek/clk-mt7622-hif.c
index 1ee79d4837a4..98aac2b5b504 100644
--- a/drivers/clk/mediatek/clk-mt7622-hif.c
+++ b/drivers/clk/mediatek/clk-mt7622-hif.c
@@ -101,7 +101,7 @@ 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(node, &clk_rst_desc);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
 
 	return r;
 }
@@ -123,7 +123,7 @@ 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(node, &clk_rst_desc);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7622.c b/drivers/clk/mediatek/clk-mt7622.c
index 8ebd66dcb946..110ab6ced22c 100644
--- a/drivers/clk/mediatek/clk-mt7622.c
+++ b/drivers/clk/mediatek/clk-mt7622.c
@@ -681,7 +681,7 @@ static int mtk_infrasys_init(struct platform_device *pdev)
 	if (r)
 		return r;
 
-	mtk_register_reset_controller(node, &clk_rst_desc[0]);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc[0]);
 
 	return 0;
 }
@@ -732,7 +732,7 @@ static int mtk_pericfg_init(struct platform_device *pdev)
 
 	clk_prepare_enable(clk_data->clks[CLK_PERI_UART0_PD]);
 
-	mtk_register_reset_controller(node, &clk_rst_desc[1]);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc[1]);
 
 	return 0;
 }
diff --git a/drivers/clk/mediatek/clk-mt7629-eth.c b/drivers/clk/mediatek/clk-mt7629-eth.c
index 56ff7c1f6ec1..69b9682f9ceb 100644
--- a/drivers/clk/mediatek/clk-mt7629-eth.c
+++ b/drivers/clk/mediatek/clk-mt7629-eth.c
@@ -100,7 +100,7 @@ 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(node, &clk_rst_desc);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt7629-hif.c b/drivers/clk/mediatek/clk-mt7629-hif.c
index fc12110b04fc..9b80b771a62b 100644
--- a/drivers/clk/mediatek/clk-mt7629-hif.c
+++ b/drivers/clk/mediatek/clk-mt7629-hif.c
@@ -96,7 +96,7 @@ 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(node, &clk_rst_desc);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
 
 	return r;
 }
@@ -118,7 +118,7 @@ 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(node, &clk_rst_desc);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/clk-mt8183.c b/drivers/clk/mediatek/clk-mt8183.c
index de4ba5e055ca..c7d5ffacbd1d 100644
--- a/drivers/clk/mediatek/clk-mt8183.c
+++ b/drivers/clk/mediatek/clk-mt8183.c
@@ -1255,7 +1255,7 @@ static int clk_mt8183_infra_probe(struct platform_device *pdev)
 		return r;
 	}
 
-	mtk_register_reset_controller(node, &clk_rst_desc);
+	mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
 
 	return r;
 }
diff --git a/drivers/clk/mediatek/reset.c b/drivers/clk/mediatek/reset.c
index b9718f0f9d16..179505549a7c 100644
--- a/drivers/clk/mediatek/reset.c
+++ b/drivers/clk/mediatek/reset.c
@@ -169,4 +169,64 @@ int mtk_register_reset_controller(struct device_node *np,
 	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
index cc67934c69e2..34772ef74ec7 100644
--- a/drivers/clk/mediatek/reset.h
+++ b/drivers/clk/mediatek/reset.h
@@ -62,4 +62,14 @@ struct mtk_clk_rst_data {
 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 */
-- 
2.18.0

[PATCH v6 11/16] clk: mediatek: reset: Add reset support for simple probe

[Rex-BC Chen]

- Add a pointer of "mtk_clk_rst_desc" to "mtk_clk_desc".
- Add register reset with device function in mtk_clk_simple_probe().

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/clk/mediatek/clk-mtk.c | 7 +++++++
 drivers/clk/mediatek/clk-mtk.h | 1 +
 2 files changed, 8 insertions(+)

diff --git a/drivers/clk/mediatek/clk-mtk.c b/drivers/clk/mediatek/clk-mtk.c
index b4063261cf56..2c72e5839d50 100644
--- a/drivers/clk/mediatek/clk-mtk.c
+++ b/drivers/clk/mediatek/clk-mtk.c
@@ -453,6 +453,13 @@ 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;
+	}
+
 	return r;
 
 unregister_clks:
diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h
index a6d0f24c62fa..2c7800bcb1a2 100644
--- a/drivers/clk/mediatek/clk-mtk.h
+++ b/drivers/clk/mediatek/clk-mtk.h
@@ -195,6 +195,7 @@ struct clk *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;
 };
 
 int mtk_clk_simple_probe(struct platform_device *pdev);
-- 
2.18.0

[PATCH v6 12/16] dt-bindings: arm: mediatek: Add #reset-cells property for MT8192/MT8195

[Rex-BC Chen]

We will use the infra_ao reset which is defined in mt8192-sys-clock
and mt8195-sys-clock.
The value of reset-cells is 1.

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 .../bindings/arm/mediatek/mediatek,mt8192-sys-clock.yaml       | 3 +++
 .../bindings/arm/mediatek/mediatek,mt8195-sys-clock.yaml       | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-sys-clock.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-sys-clock.yaml
index 5705bcf1fe47..27f79175c678 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-sys-clock.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8192-sys-clock.yaml
@@ -29,6 +29,9 @@ properties:
   '#clock-cells':
     const: 1
 
+  '#reset-cells':
+    const: 1
+
 required:
   - compatible
   - reg
diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8195-sys-clock.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8195-sys-clock.yaml
index 57a1503d95fe..95b6bdf99936 100644
--- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8195-sys-clock.yaml
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt8195-sys-clock.yaml
@@ -37,6 +37,9 @@ properties:
   '#clock-cells':
     const: 1
 
+  '#reset-cells':
+    const: 1
+
 required:
   - compatible
   - reg
-- 
2.18.0

[PATCH v6 13/16] dt-bindings: reset: mediatek: Add infra_ao reset index for MT8192/MT8195

[Rex-BC Chen]

To support reset of infra_ao, add the index of infra_ao reset of
thermal/svs/pcei for MT8192 and thermal/svs for MT8195.

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
---
 include/dt-bindings/reset/mt8192-resets.h | 8 ++++++++
 include/dt-bindings/reset/mt8195-resets.h | 6 ++++++
 2 files changed, 14 insertions(+)

diff --git a/include/dt-bindings/reset/mt8192-resets.h b/include/dt-bindings/reset/mt8192-resets.h
index be9a7ca245b9..1779ff6a832e 100644
--- a/include/dt-bindings/reset/mt8192-resets.h
+++ b/include/dt-bindings/reset/mt8192-resets.h
@@ -7,6 +7,7 @@
 #ifndef _DT_BINDINGS_RESET_CONTROLLER_MT8192
 #define _DT_BINDINGS_RESET_CONTROLLER_MT8192
 
+/* TOPRGU resets */
 #define MT8192_TOPRGU_MM_SW_RST					1
 #define MT8192_TOPRGU_MFG_SW_RST				2
 #define MT8192_TOPRGU_VENC_SW_RST				3
@@ -27,4 +28,11 @@
 
 #define MT8192_TOPRGU_SW_RST_NUM				23
 
+/* INFRA resets */
+#define MT8192_INFRA_RST0_THERM_CTRL_SWRST		0
+#define MT8192_INFRA_RST2_PEXTP_PHY_SWRST		1
+#define MT8192_INFRA_RST3_THERM_CTRL_PTP_SWRST	2
+#define MT8192_INFRA_RST4_PCIE_TOP_SWRST		3
+#define MT8192_INFRA_RST4_THERM_CTRL_MCU_SWRST	4
+
 #endif  /* _DT_BINDINGS_RESET_CONTROLLER_MT8192 */
diff --git a/include/dt-bindings/reset/mt8195-resets.h b/include/dt-bindings/reset/mt8195-resets.h
index a26bccc8b957..0b1937f14b36 100644
--- a/include/dt-bindings/reset/mt8195-resets.h
+++ b/include/dt-bindings/reset/mt8195-resets.h
@@ -7,6 +7,7 @@
 #ifndef _DT_BINDINGS_RESET_CONTROLLER_MT8195
 #define _DT_BINDINGS_RESET_CONTROLLER_MT8195
 
+/* TOPRGU resets */
 #define MT8195_TOPRGU_CONN_MCU_SW_RST          0
 #define MT8195_TOPRGU_INFRA_GRST_SW_RST        1
 #define MT8195_TOPRGU_APU_SW_RST               2
@@ -26,4 +27,9 @@
 
 #define MT8195_TOPRGU_SW_RST_NUM               16
 
+/* INFRA resets */
+#define MT8195_INFRA_RST0_THERM_CTRL_SWRST     0
+#define MT8195_INFRA_RST3_THERM_CTRL_PTP_SWRST 1
+#define MT8195_INFRA_RST4_THERM_CTRL_MCU_SWRST 2
+
 #endif  /* _DT_BINDINGS_RESET_CONTROLLER_MT8195 */
-- 
2.18.0

[PATCH v6 14/16] clk: mediatek: reset: Add infra_ao reset support for MT8192/MT8195

[Rex-BC Chen]

The infra_ao reset is needed for MT8192 and MT8195.
- Add mtk_clk_rst_desc for MT8192 and MT8195
- Add register reset controller function for MT8192 infra_ao.
- Move definition of infra reset from cl-mt8183.c to reset.h
  because it's the same definition with MT8192 and MT8195.
- Add new definition of infra reset_4 for MT8192 and MT8195.
- Add infra_ao_idx_map for MT8192 and MT8195.

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 drivers/clk/mediatek/clk-mt8183.c          |  6 -----
 drivers/clk/mediatek/clk-mt8192.c          | 29 ++++++++++++++++++++++
 drivers/clk/mediatek/clk-mt8195-infra_ao.c | 24 ++++++++++++++++++
 drivers/clk/mediatek/reset.h               |  7 ++++++
 4 files changed, 60 insertions(+), 6 deletions(-)

diff --git a/drivers/clk/mediatek/clk-mt8183.c b/drivers/clk/mediatek/clk-mt8183.c
index c7d5ffacbd1d..40b53e15411d 100644
--- a/drivers/clk/mediatek/clk-mt8183.c
+++ b/drivers/clk/mediatek/clk-mt8183.c
@@ -18,12 +18,6 @@
 
 #include <dt-bindings/clock/mt8183-clk.h>
 
-/* 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
-
 static DEFINE_SPINLOCK(mt8183_clk_lock);
 
 static const struct mtk_fixed_clk top_fixed_clks[] = {
diff --git a/drivers/clk/mediatek/clk-mt8192.c b/drivers/clk/mediatek/clk-mt8192.c
index ab27cd66b866..66b43d3ba424 100644
--- a/drivers/clk/mediatek/clk-mt8192.c
+++ b/drivers/clk/mediatek/clk-mt8192.c
@@ -18,6 +18,7 @@
 #include "clk-pll.h"
 
 #include <dt-bindings/clock/mt8192-clk.h>
+#include <dt-bindings/reset/mt8192-resets.h>
 
 static DEFINE_SPINLOCK(mt8192_clk_lock);
 
@@ -1114,6 +1115,30 @@ 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
@@ -1239,6 +1264,10 @@ 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);
+	if (r)
+		goto free_clk_data;
+
 	r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
 	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 8ebe3b9415c4..97657f255618 100644
--- a/drivers/clk/mediatek/clk-mt8195-infra_ao.c
+++ b/drivers/clk/mediatek/clk-mt8195-infra_ao.c
@@ -7,6 +7,7 @@
 #include "clk-mtk.h"
 
 #include <dt-bindings/clock/mt8195-clk.h>
+#include <dt-bindings/reset/mt8195-resets.h>
 #include <linux/clk-provider.h>
 #include <linux/platform_device.h>
 
@@ -182,9 +183,32 @@ 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,
 };
 
 static const struct of_device_id of_match_clk_mt8195_infra_ao[] = {
diff --git a/drivers/clk/mediatek/reset.h b/drivers/clk/mediatek/reset.h
index 34772ef74ec7..913fe676cba7 100644
--- a/drivers/clk/mediatek/reset.h
+++ b/drivers/clk/mediatek/reset.h
@@ -11,6 +11,13 @@
 
 #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.
-- 
2.18.0

[PATCH v6 15/16] arm64: dts: mediatek: Add infra #reset-cells property for MT8192

[Rex-BC Chen]

To support reset of infra, we add property of #reset-cells.

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 arch/arm64/boot/dts/mediatek/mt8192.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
index 411feb294613..79803420d8ef 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
@@ -269,6 +269,7 @@
 			compatible = "mediatek,mt8192-infracfg", "syscon";
 			reg = <0 0x10001000 0 0x1000>;
 			#clock-cells = <1>;
+			#reset-cells = <1>;
 		};
 
 		pericfg: syscon@10003000 {
-- 
2.18.0

[PATCH v6 16/16] arm64: dts: mediatek: Add infra #reset-cells property for MT8195

[Rex-BC Chen]

We will use mediatek clock reset as infracfg_ao reset instead of
ti-syscon. To support this, remove property of ti reset and add
property of #reset-cells for mediatek clock reset.

Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 arch/arm64/boot/dts/mediatek/mt8195.dtsi | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
index b57e620c2c72..8e5ac11b19f1 100644
--- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
@@ -10,7 +10,6 @@
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/phy/phy.h>
 #include <dt-bindings/pinctrl/mt8195-pinfunc.h>
-#include <dt-bindings/reset/ti-syscon.h>
 
 / {
 	compatible = "mediatek,mt8195";
@@ -295,17 +294,7 @@
 			compatible = "mediatek,mt8195-infracfg_ao", "syscon", "simple-mfd";
 			reg = <0 0x10001000 0 0x1000>;
 			#clock-cells = <1>;
-
-			infracfg_rst: reset-controller {
-				compatible = "ti,syscon-reset";
-				#reset-cells = <1>;
-				ti,reset-bits = <
-					0x140 18 0x144 18 0 0 (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* pcie */
-					0x120 0  0x124 0  0 0 (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* thermal */
-					0x730 10 0x734 10 0 0 (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* thermal */
-					0x150 5  0x154 5  0 0 (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* svs gpu */
-				>;
-			};
+			#reset-cells = <1>;
 		};
 
 		pericfg: syscon@10003000 {
-- 
2.18.0

Re: [PATCH v6 13/16] dt-bindings: reset: mediatek: Add infra_ao reset index for MT8192/MT8195

[Krzysztof Kozlowski]

On 03/05/2022 11:38, Rex-BC Chen wrote:
> To support reset of infra_ao, add the index of infra_ao reset of
> thermal/svs/pcei for MT8192 and thermal/svs for MT8195.
> 
> Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>


Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>


Best regards,
Krzysztof

Re: [PATCH v6 13/16] dt-bindings: reset: mediatek: Add infra_ao reset index for MT8192/MT8195

[AngeloGioacchino Del Regno]

Il 03/05/22 11:38, Rex-BC Chen ha scritto:
> To support reset of infra_ao, add the index of infra_ao reset of
> thermal/svs/pcei for MT8192 and thermal/svs for MT8195.
> 
> Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

Re: [PATCH v6 12/16] dt-bindings: arm: mediatek: Add #reset-cells property for MT8192/MT8195

[AngeloGioacchino Del Regno]

Il 03/05/22 11:38, Rex-BC Chen ha scritto:
> We will use the infra_ao reset which is defined in mt8192-sys-clock
> and mt8195-sys-clock.
> The value of reset-cells is 1.
> 
> Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

Re: [PATCH v6 08/16] clk: mediatek: reset: Support inuput argument index mode

[AngeloGioacchino Del Regno]

Il 03/05/22 11:38, Rex-BC Chen ha scritto:
> There is a large number of mediatek infra reset bits, but we do not use
> all of them. In addition, the proper input argement of reset controller
> soulde be index.
> Therefore, to be compatible with previous drivers and usage, we add
> description variables to store the ids which can mapping to index.
> 
> To use this mode, we need to put the id in rst_idx_map to map from
> index to ids. For example, if we want to input index 1 (this index
> is used to set bank 1 bit 14) for svs, we need to declare the reset
> controller like this:
> 
> In drivers:
> static u16 rst_ofs[] = {
>          0x120, 0x130, 0x140, 0x150, 0x730,
> };
> 
> static u16 rst_idx_map[] = {
>          0 * 32 + 0,
>          1 * 32 + 14,
>          ....
> };
> 
> static const struct mtk_clk_rst_desc clk_rst_desc = {
>          .version = MTK_RST_SET_CLR,
>          .rst_bank_ofs = rst_ofs,
>          .rst_bank_nr = ARRAY_SIZE(rst_ofs),
>          .rst_idx_map = rst_idx_map,
>          .rst_idx_map_nr = ARRAY_SIZE(rst_idx_map),
> };
> 
> In dts:
> svs: {
>          ...
>          resets = <&infra 1>;
>          ...
> };
> 
> Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

Re: [PATCH v6 00/16] Cleanup MediaTek clk reset drivers and support MT8192/MT8195

[Rex-BC Chen]

On Tue, 2022-05-03 at 17:38 +0800, Rex-BC Chen wrote:
> In this series, we cleanup MediaTek clock reset drivers in
> clk/mediatek
> folder. MediaTek clock reset driver is used to provide reset control
> of modules controlled in clk, like infra_ao.
> 
> Changes for v6:
> 1. Add a new patch to support inuput argument index mode.
> 2. Revise definition in reset.h to index.
> 
> Changes for V5:
> 1. Add all infra reset bits for MT8192 and MT8195.
> 2. Fix reviewers' comments.
> 
> Changes for V4:
> 1. Abandon the implementation of reset-cell = 2, and use reset index
> to
>    determine which reset bit is used.
> 2. Add documentation for enum/structure/function in reset.h.
> 3. Combine binding/drvier support patch for MT8192 and MT8195.
> 4. The MT8195 DTS is accepted by Matthias, and I add new DTS patch to
>    support infracfg_ao reset for MT8195. The DTS of MT8195 is still
>    not merged into mainline. Please refer to [1].
> 
> [1]: 
> https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux.git/commit/?h=for-next&id=37f2582883be7218dc69f9af135959a8e93de223
> 
> Changes for V3:
> 1. Modify drivers for reviewers' comments.
> 2. Add dt-binding patch for MT8192/MT8195 infra.
> 3. Add reset property of infra node for MT8192.
> 4. Use original function for simple operation.
> 
> Changes for V2:
> 1. Modify drivers for reviewers' comments.
> 2. Use simple reset to replace v1.
> 3. Recover v2 to set_clr.
> 4. Separate error handling to another patch.
> 5. Add support for input offset and bit from DT.
> 6. Add support for MT8192 and MT8195.
> 
> Rex-BC Chen (16):
>   clk: mediatek: reset: Add reset.h
>   clk: mediatek: reset: Fix written reset bit offset
>   clk: mediatek: reset: Refine and reorder functions in reset.c
>   clk: mediatek: reset: Extract common drivers to update function
>   clk: mediatek: reset: Merge and revise reset register function
>   clk: mediatek: reset: Revise structure to control reset register
>   clk: mediatek: reset: Support nonsequence base offsets of reset
>     registers
>   clk: mediatek: reset: Support inuput argument index mode
>   clk: mediatek: reset: Change return type for clock reset register
>     function
>   clk: mediatek: reset: Add new register reset function with device
>   clk: mediatek: reset: Add reset support for simple probe
>   dt-bindings: arm: mediatek: Add #reset-cells property for
>     MT8192/MT8195
>   dt-bindings: reset: mediatek: Add infra_ao reset index for
>     MT8192/MT8195
>   clk: mediatek: reset: Add infra_ao reset support for MT8192/MT8195
>   arm64: dts: mediatek: Add infra #reset-cells property for MT8192
>   arm64: dts: mediatek: Add infra #reset-cells property for MT8195
> 
>  .../mediatek/mediatek,mt8192-sys-clock.yaml   |   3 +
>  .../mediatek/mediatek,mt8195-sys-clock.yaml   |   3 +
>  arch/arm64/boot/dts/mediatek/mt8192.dtsi      |   1 +
>  arch/arm64/boot/dts/mediatek/mt8195.dtsi      |  13 +-
>  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             |  18 +-
>  drivers/clk/mediatek/clk-mt8192.c             |  29 +++
>  drivers/clk/mediatek/clk-mt8195-infra_ao.c    |  24 +++
>  drivers/clk/mediatek/clk-mtk.c                |   7 +
>  drivers/clk/mediatek/clk-mtk.h                |   9 +-
>  drivers/clk/mediatek/reset.c                  | 198 +++++++++++++---
> --
>  drivers/clk/mediatek/reset.h                  |  82 ++++++++
>  include/dt-bindings/reset/mt8192-resets.h     |   8 +
>  include/dt-bindings/reset/mt8195-resets.h     |   6 +
>  25 files changed, 491 insertions(+), 94 deletions(-)
>  create mode 100644 drivers/clk/mediatek/reset.h
> 
> -- 
> 2.18.0
> 

Hello Stephen and Michael,

The drivers of this series are reviewed.
The binding of this series are also acked.
Could you spare some time and give us some suggestion?

Thanks!

BRs,
Rex

Re: [PATCH v6 00/16] Cleanup MediaTek clk reset drivers and support MT8192/MT8195

[Rex-BC Chen]

On Tue, 2022-05-17 at 15:23 +0800, Stephen Boyd wrote:
> Quoting Rex-BC Chen (2022-05-08 22:35:55)
> > 
> > The drivers of this series are reviewed.
> > The binding of this series are also acked.
> > Could you spare some time and give us some suggestion?
> 
> Have you considered using the auxiliary bus to split the Mediatek clk
> and reset device up into a clk device and a reset device? The idea
> would
> be to move the reset related code into drivers/reset and have the clk
> code in drivers/clk. It's purely an organizational thing and it can
> certainly be done later but it may be a good idea to do this to
> clearly split out the two different functionalities.

Hello Stephen,

Thanks for your advice.
The purpose of this series is to clean up the drivers and we can apply
new socs for it.

I didn't use the auxiliary bus before. However, I can study to the
implementation of auxiliary bus for this reset drivers in another
series. Is this ok for you?

Thanks!

BRs,
Rex

Re: [PATCH v6 15/16] arm64: dts: mediatek: Add infra #reset-cells property for MT8192

[Matthias Brugger]

On 03/05/2022 11:38, Rex-BC Chen wrote:
> To support reset of infra, we add property of #reset-cells.
> 
> Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

Applied, thanks!

> ---
>   arch/arm64/boot/dts/mediatek/mt8192.dtsi | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> index 411feb294613..79803420d8ef 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> @@ -269,6 +269,7 @@
>   			compatible = "mediatek,mt8192-infracfg", "syscon";
>   			reg = <0 0x10001000 0 0x1000>;
>   			#clock-cells = <1>;
> +			#reset-cells = <1>;
>   		};
>   
>   		pericfg: syscon@10003000 {

Re: [PATCH v6 16/16] arm64: dts: mediatek: Add infra #reset-cells property for MT8195

[Matthias Brugger]

On 03/05/2022 11:38, Rex-BC Chen wrote:
> We will use mediatek clock reset as infracfg_ao reset instead of
> ti-syscon. To support this, remove property of ti reset and add
> property of #reset-cells for mediatek clock reset.
> 
> Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

My understanding is that using the old DTS with a newer kernel wouldn't 
introduce a regression, correct?

Applied, thanks!

> ---
>   arch/arm64/boot/dts/mediatek/mt8195.dtsi | 13 +------------
>   1 file changed, 1 insertion(+), 12 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> index b57e620c2c72..8e5ac11b19f1 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> @@ -10,7 +10,6 @@
>   #include <dt-bindings/interrupt-controller/irq.h>
>   #include <dt-bindings/phy/phy.h>
>   #include <dt-bindings/pinctrl/mt8195-pinfunc.h>
> -#include <dt-bindings/reset/ti-syscon.h>
>   
>   / {
>   	compatible = "mediatek,mt8195";
> @@ -295,17 +294,7 @@
>   			compatible = "mediatek,mt8195-infracfg_ao", "syscon", "simple-mfd";
>   			reg = <0 0x10001000 0 0x1000>;
>   			#clock-cells = <1>;
> -
> -			infracfg_rst: reset-controller {
> -				compatible = "ti,syscon-reset";
> -				#reset-cells = <1>;
> -				ti,reset-bits = <
> -					0x140 18 0x144 18 0 0 (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* pcie */
> -					0x120 0  0x124 0  0 0 (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* thermal */
> -					0x730 10 0x734 10 0 0 (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* thermal */
> -					0x150 5  0x154 5  0 0 (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* svs gpu */
> -				>;
> -			};
> +			#reset-cells = <1>;
>   		};
>   
>   		pericfg: syscon@10003000 {

Re: [PATCH v6 16/16] arm64: dts: mediatek: Add infra #reset-cells property for MT8195

[Rex-BC Chen]

On Wed, 2022-06-22 at 19:08 +0800, Matthias Brugger wrote:
> 
> On 03/05/2022 11:38, Rex-BC Chen wrote:
> > We will use mediatek clock reset as infracfg_ao reset instead of
> > ti-syscon. To support this, remove property of ti reset and add
> > property of #reset-cells for mediatek clock reset.
> > 
> > Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
> > Reviewed-by: AngeloGioacchino Del Regno <
> > angelogioacchino.delregno@collabora.com>
> 
> My understanding is that using the old DTS with a newer kernel
> wouldn't 
> introduce a regression, correct?
> 
> Applied, thanks!
> 

Hello Matthias,

yes, because there is no user for this infra reset controller in
upstream mainline.

In addition, could you also help to give us some suggestion for Nancy's
series?

Thanks for your big support!

[1]: 
https://patchwork.kernel.org/project/linux-mediatek/list/?series=651900

BRs,
Bo-Chen

> > ---
> >   arch/arm64/boot/dts/mediatek/mt8195.dtsi | 13 +------------
> >   1 file changed, 1 insertion(+), 12 deletions(-)
> > 
> > diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> > b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> > index b57e620c2c72..8e5ac11b19f1 100644
> > --- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> > +++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> > @@ -10,7 +10,6 @@
> >   #include <dt-bindings/interrupt-controller/irq.h>
> >   #include <dt-bindings/phy/phy.h>
> >   #include <dt-bindings/pinctrl/mt8195-pinfunc.h>
> > -#include <dt-bindings/reset/ti-syscon.h>
> >   
> >   / {
> >   	compatible = "mediatek,mt8195";
> > @@ -295,17 +294,7 @@
> >   			compatible = "mediatek,mt8195-infracfg_ao",
> > "syscon", "simple-mfd";
> >   			reg = <0 0x10001000 0 0x1000>;
> >   			#clock-cells = <1>;
> > -
> > -			infracfg_rst: reset-controller {
> > -				compatible = "ti,syscon-reset";
> > -				#reset-cells = <1>;
> > -				ti,reset-bits = <
> > -					0x140 18 0x144 18 0 0
> > (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* pcie */
> > -					0x120 0  0x124 0  0 0
> > (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* thermal */
> > -					0x730 10 0x734 10 0 0
> > (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* thermal */
> > -					0x150 5  0x154 5  0 0
> > (ASSERT_SET | DEASSERT_SET | STATUS_NONE) /* svs gpu */
> > -				>;
> > -			};
> > +			#reset-cells = <1>;
> >   		};
> >   
> >   		pericfg: syscon@10003000 {