[PATCH 0/2] clk: en7523: reset-controller support for EN7523 SoC

[PATCH 0/2] clk: en7523: reset-controller support for EN7523 SoC

[Mikhail Kshevetskiy]

These patches:
 * adds reset-controller support for EN7523 SoC
 * updates dt-bindings
 * updates en7523 dtsi

Reset-controller support will allow us more easily reusing of en7581 drivers
for en7523.

Mikhail Kshevetskiy (2):
  dt-bindings: clock: airoha: Add reset support to EN7523 clock binding
  clk: en7523: Add reset-controller support for EN7523 SoC

 .../bindings/clock/airoha,en7523-scu.yaml     |  4 +-
 arch/arm/boot/dts/airoha/en7523.dtsi          |  1 +
 drivers/clk/clk-en7523.c                      | 72 ++++++++++++++++---
 .../dt-bindings/reset/airoha,en7523-reset.h   | 61 ++++++++++++++++
 4 files changed, 127 insertions(+), 11 deletions(-)
 create mode 100644 include/dt-bindings/reset/airoha,en7523-reset.h

-- 
2.51.0

[PATCH 1/2] dt-bindings: clock: airoha: Add reset support to EN7523 clock binding

[Mikhail Kshevetskiy]

Introduce reset capability to EN7523 device-tree clock binding
documentation. Also this patch makes mandatory '#reset-cells'
property for EN7523 SoC dts.

Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
---
 .../bindings/clock/airoha,en7523-scu.yaml     |  4 +-
 .../dt-bindings/reset/airoha,en7523-reset.h   | 61 +++++++++++++++++++
 2 files changed, 63 insertions(+), 2 deletions(-)
 create mode 100644 include/dt-bindings/reset/airoha,en7523-reset.h

diff --git a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
index fe2c5c1baf43..a0df16485300 100644
--- a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
+++ b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
@@ -53,6 +53,7 @@ required:
   - compatible
   - reg
   - '#clock-cells'
+  - '#reset-cells'
 
 allOf:
   - if:
@@ -64,8 +65,6 @@ allOf:
         reg:
           minItems: 2
 
-        '#reset-cells': false
-
   - if:
       properties:
         compatible:
@@ -85,6 +84,7 @@ examples:
       reg = <0x1fa20000 0x400>,
             <0x1fb00000 0x1000>;
       #clock-cells = <1>;
+      #reset-cells = <1>;
     };
 
   - |
diff --git a/include/dt-bindings/reset/airoha,en7523-reset.h b/include/dt-bindings/reset/airoha,en7523-reset.h
new file mode 100644
index 000000000000..211e8a23a21c
--- /dev/null
+++ b/include/dt-bindings/reset/airoha,en7523-reset.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2024 iopsys Software Solutions AB.
+ * Copyright (C) 2025 Genexis AB.
+ *
+ * Author: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
+ *
+ * based on
+ *   include/dt-bindings/reset/airoha,en7581-reset.h
+ * by Lorenzo Bianconi <lorenzo@kernel.org>
+ */
+
+#ifndef __DT_BINDINGS_RESET_CONTROLLER_AIROHA_EN7523_H_
+#define __DT_BINDINGS_RESET_CONTROLLER_AIROHA_EN7523_H_
+
+/* RST_CTRL2 */
+#define EN7523_XPON_PHY_RST		 0
+#define EN7523_XSI_MAC_RST		 1
+#define EN7523_XSI_PHY_RST		 2
+#define EN7523_NPU_RST			 3
+#define EN7523_I2S_RST			 4
+#define EN7523_TRNG_RST			 5
+#define EN7523_TRNG_MSTART_RST		 6
+#define EN7523_DUAL_HSI0_RST		 7
+#define EN7523_DUAL_HSI1_RST		 8
+#define EN7523_HSI_RST			 9
+#define EN7523_DUAL_HSI0_MAC_RST	10
+#define EN7523_DUAL_HSI1_MAC_RST	11
+#define EN7523_HSI_MAC_RST		12
+#define EN7523_WDMA_RST			13
+#define EN7523_WOE0_RST			14
+#define EN7523_WOE1_RST			15
+#define EN7523_HSDMA_RST		16
+#define EN7523_I2C2RBUS_RST		17
+#define EN7523_TDMA_RST			18
+/* RST_CTRL1 */
+#define EN7523_PCM1_ZSI_ISI_RST		19
+#define EN7523_FE_PDMA_RST		20
+#define EN7523_FE_QDMA_RST		21
+#define EN7523_PCM_SPIWP_RST		22
+#define EN7523_CRYPTO_RST		23
+#define EN7523_TIMER_RST		24
+#define EN7523_PCM1_RST			25
+#define EN7523_UART_RST			26
+#define EN7523_GPIO_RST			27
+#define EN7523_GDMA_RST			28
+#define EN7523_I2C_MASTER_RST		29
+#define EN7523_PCM2_ZSI_ISI_RST		30
+#define EN7523_SFC_RST			31
+#define EN7523_UART2_RST		32
+#define EN7523_GDMP_RST			33
+#define EN7523_FE_RST			34
+#define EN7523_USB_HOST_P0_RST		35
+#define EN7523_GSW_RST			36
+#define EN7523_SFC2_PCM_RST		37
+#define EN7523_PCIE0_RST		38
+#define EN7523_PCIE1_RST		39
+#define EN7523_PCIE_HB_RST		40
+#define EN7523_XPON_MAC_RST		41
+
+#endif /* __DT_BINDINGS_RESET_CONTROLLER_AIROHA_EN7523_H_ */
-- 
2.51.0

[PATCH 2/2] clk: en7523: Add reset-controller support for EN7523 SoC

[Mikhail Kshevetskiy]

Introduce reset API support to EN7523 clock driver. EN7523 uses the
same reset logic as EN7581, so just reuse existing code. The patch
renames:
 * en7581_rst_ofs to en75xx_rst_ofs,
 * en7581_reset_register() to en75xx_reset_register()
because they are not en7581 specific.

This patch also updates en7523 dtsi file to add required '#reset-cells'
property to the System Control Unit node.

Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
---
 arch/arm/boot/dts/airoha/en7523.dtsi |  1 +
 drivers/clk/clk-en7523.c             | 72 ++++++++++++++++++++++++----
 2 files changed, 64 insertions(+), 9 deletions(-)

diff --git a/arch/arm/boot/dts/airoha/en7523.dtsi b/arch/arm/boot/dts/airoha/en7523.dtsi
index b523a868c4ad..7d60a4f2e650 100644
--- a/arch/arm/boot/dts/airoha/en7523.dtsi
+++ b/arch/arm/boot/dts/airoha/en7523.dtsi
@@ -91,6 +91,7 @@ scu: system-controller@1fa20000 {
 		reg = <0x1fa20000 0x400>,
 		      <0x1fb00000 0x1000>;
 		#clock-cells = <1>;
+		#reset-cells = <1>;
 	};
 
 	gic: interrupt-controller@9000000 {
diff --git a/drivers/clk/clk-en7523.c b/drivers/clk/clk-en7523.c
index 15bbdeb60b8e..f276937181b9 100644
--- a/drivers/clk/clk-en7523.c
+++ b/drivers/clk/clk-en7523.c
@@ -9,6 +9,7 @@
 #include <linux/regmap.h>
 #include <linux/reset-controller.h>
 #include <dt-bindings/clock/en7523-clk.h>
+#include <dt-bindings/reset/airoha,en7523-reset.h>
 #include <dt-bindings/reset/airoha,en7581-reset.h>
 
 #define RST_NR_PER_BANK			32
@@ -294,11 +295,58 @@ static const struct en_clk_desc en7581_base_clks[] = {
 	}
 };
 
-static const u16 en7581_rst_ofs[] = {
+static const u16 en75xx_rst_ofs[] = {
 	REG_RST_CTRL2,
 	REG_RST_CTRL1,
 };
 
+static const u16 en7523_rst_map[] = {
+	/* RST_CTRL2 */
+	[EN7523_XPON_PHY_RST]		= 0,
+	[EN7523_XSI_MAC_RST]		= 7,
+	[EN7523_XSI_PHY_RST]		= 8,
+	[EN7523_NPU_RST]		= 9,
+	[EN7523_I2S_RST]		= 10,
+	[EN7523_TRNG_RST]		= 11,
+	[EN7523_TRNG_MSTART_RST]	= 12,
+	[EN7523_DUAL_HSI0_RST]		= 13,
+	[EN7523_DUAL_HSI1_RST]		= 14,
+	[EN7523_HSI_RST]		= 15,
+	[EN7523_DUAL_HSI0_MAC_RST]	= 16,
+	[EN7523_DUAL_HSI1_MAC_RST]	= 17,
+	[EN7523_HSI_MAC_RST]		= 18,
+	[EN7523_WDMA_RST]		= 19,
+	[EN7523_WOE0_RST]		= 20,
+	[EN7523_WOE1_RST]		= 21,
+	[EN7523_HSDMA_RST]		= 22,
+	[EN7523_I2C2RBUS_RST]		= 23,
+	[EN7523_TDMA_RST]		= 24,
+	/* RST_CTRL1 */
+	[EN7523_PCM1_ZSI_ISI_RST]	= RST_NR_PER_BANK + 0,
+	[EN7523_FE_PDMA_RST]		= RST_NR_PER_BANK + 1,
+	[EN7523_FE_QDMA_RST]		= RST_NR_PER_BANK + 2,
+	[EN7523_PCM_SPIWP_RST]		= RST_NR_PER_BANK + 4,
+	[EN7523_CRYPTO_RST]		= RST_NR_PER_BANK + 6,
+	[EN7523_TIMER_RST]		= RST_NR_PER_BANK + 8,
+	[EN7523_PCM1_RST]		= RST_NR_PER_BANK + 11,
+	[EN7523_UART_RST]		= RST_NR_PER_BANK + 12,
+	[EN7523_GPIO_RST]		= RST_NR_PER_BANK + 13,
+	[EN7523_GDMA_RST]		= RST_NR_PER_BANK + 14,
+	[EN7523_I2C_MASTER_RST]		= RST_NR_PER_BANK + 16,
+	[EN7523_PCM2_ZSI_ISI_RST]	= RST_NR_PER_BANK + 17,
+	[EN7523_SFC_RST]		= RST_NR_PER_BANK + 18,
+	[EN7523_UART2_RST]		= RST_NR_PER_BANK + 19,
+	[EN7523_GDMP_RST]		= RST_NR_PER_BANK + 20,
+	[EN7523_FE_RST]			= RST_NR_PER_BANK + 21,
+	[EN7523_USB_HOST_P0_RST]	= RST_NR_PER_BANK + 22,
+	[EN7523_GSW_RST]		= RST_NR_PER_BANK + 23,
+	[EN7523_SFC2_PCM_RST]		= RST_NR_PER_BANK + 25,
+	[EN7523_PCIE0_RST]		= RST_NR_PER_BANK + 26,
+	[EN7523_PCIE1_RST]		= RST_NR_PER_BANK + 27,
+	[EN7523_PCIE_HB_RST]		= RST_NR_PER_BANK + 29,
+	[EN7523_XPON_MAC_RST]		= RST_NR_PER_BANK + 31,
+};
+
 static const u16 en7581_rst_map[] = {
 	/* RST_CTRL2 */
 	[EN7581_XPON_PHY_RST]		= 0,
@@ -357,6 +405,9 @@ static const u16 en7581_rst_map[] = {
 	[EN7581_XPON_MAC_RST]		= RST_NR_PER_BANK + 31,
 };
 
+static int en75xx_reset_register(struct device *dev, void __iomem *base,
+				 const u16 *rst_map, int nr_resets);
+
 static u32 en7523_get_base_rate(const struct en_clk_desc *desc, u32 val)
 {
 	if (!desc->base_bits)
@@ -552,7 +603,8 @@ static int en7523_clk_hw_init(struct platform_device *pdev,
 
 	en7523_register_clocks(&pdev->dev, clk_data, base, np_base);
 
-	return 0;
+	return en75xx_reset_register(&pdev->dev, np_base, en7523_rst_map,
+				     ARRAY_SIZE(en7523_rst_map));
 }
 
 static void en7581_register_clocks(struct device *dev, struct clk_hw_onecell_data *clk_data,
@@ -646,13 +698,14 @@ static int en7523_reset_xlate(struct reset_controller_dev *rcdev,
 	return rst_data->idx_map[reset_spec->args[0]];
 }
 
-static const struct reset_control_ops en7581_reset_ops = {
+static const struct reset_control_ops en75xx_reset_ops = {
 	.assert = en7523_reset_assert,
 	.deassert = en7523_reset_deassert,
 	.status = en7523_reset_status,
 };
 
-static int en7581_reset_register(struct device *dev, void __iomem *base)
+static int en75xx_reset_register(struct device *dev, void __iomem *base,
+				 const u16 *rst_map, int nr_resets)
 {
 	struct en_rst_data *rst_data;
 
@@ -660,13 +713,13 @@ static int en7581_reset_register(struct device *dev, void __iomem *base)
 	if (!rst_data)
 		return -ENOMEM;
 
-	rst_data->bank_ofs = en7581_rst_ofs;
-	rst_data->idx_map = en7581_rst_map;
+	rst_data->bank_ofs = en75xx_rst_ofs;
+	rst_data->idx_map = rst_map;
 	rst_data->base = base;
 
-	rst_data->rcdev.nr_resets = ARRAY_SIZE(en7581_rst_map);
+	rst_data->rcdev.nr_resets = nr_resets;
 	rst_data->rcdev.of_xlate = en7523_reset_xlate;
-	rst_data->rcdev.ops = &en7581_reset_ops;
+	rst_data->rcdev.ops = &en75xx_reset_ops;
 	rst_data->rcdev.of_node = dev->of_node;
 	rst_data->rcdev.of_reset_n_cells = 1;
 	rst_data->rcdev.owner = THIS_MODULE;
@@ -698,7 +751,8 @@ static int en7581_clk_hw_init(struct platform_device *pdev,
 	val = readl(base + REG_NP_SCU_PCIC);
 	writel(val | 3, base + REG_NP_SCU_PCIC);
 
-	return en7581_reset_register(&pdev->dev, base);
+	return en75xx_reset_register(&pdev->dev, base, en7581_rst_map,
+				     ARRAY_SIZE(en7581_rst_map));
 }
 
 static int en7523_clk_probe(struct platform_device *pdev)
-- 
2.51.0

Re: [PATCH 2/2] clk: en7523: Add reset-controller support for EN7523 SoC

[AngeloGioacchino Del Regno]

Il 24/09/25 08:05, Mikhail Kshevetskiy ha scritto:
> Introduce reset API support to EN7523 clock driver. EN7523 uses the
> same reset logic as EN7581, so just reuse existing code. The patch
> renames:
>   * en7581_rst_ofs to en75xx_rst_ofs,
>   * en7581_reset_register() to en75xx_reset_register()
> because they are not en7581 specific.
> 
> This patch also updates en7523 dtsi file to add required '#reset-cells'
> property to the System Control Unit node.
> 
> Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
> ---
>   arch/arm/boot/dts/airoha/en7523.dtsi |  1 +

Driver and devicetree changes have to be done in two different commits.
Please split.

>   drivers/clk/clk-en7523.c             | 72 ++++++++++++++++++++++++----
>   2 files changed, 64 insertions(+), 9 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/airoha/en7523.dtsi b/arch/arm/boot/dts/airoha/en7523.dtsi
> index b523a868c4ad..7d60a4f2e650 100644
> --- a/arch/arm/boot/dts/airoha/en7523.dtsi
> +++ b/arch/arm/boot/dts/airoha/en7523.dtsi
> @@ -91,6 +91,7 @@ scu: system-controller@1fa20000 {
>   		reg = <0x1fa20000 0x400>,
>   		      <0x1fb00000 0x1000>;
>   		#clock-cells = <1>;
> +		#reset-cells = <1>;
>   	};
>   
>   	gic: interrupt-controller@9000000 {
> diff --git a/drivers/clk/clk-en7523.c b/drivers/clk/clk-en7523.c
> index 15bbdeb60b8e..f276937181b9 100644
> --- a/drivers/clk/clk-en7523.c
> +++ b/drivers/clk/clk-en7523.c
> @@ -9,6 +9,7 @@
>   #include <linux/regmap.h>
>   #include <linux/reset-controller.h>
>   #include <dt-bindings/clock/en7523-clk.h>
> +#include <dt-bindings/reset/airoha,en7523-reset.h>
>   #include <dt-bindings/reset/airoha,en7581-reset.h>
>   
>   #define RST_NR_PER_BANK			32
> @@ -294,11 +295,58 @@ static const struct en_clk_desc en7581_base_clks[] = {
>   	}
>   };
>   
> -static const u16 en7581_rst_ofs[] = {
> +static const u16 en75xx_rst_ofs[] = {

There's no need to rename this.

>   	REG_RST_CTRL2,
>   	REG_RST_CTRL1,
>   };
>   
> +static const u16 en7523_rst_map[] = {
> +	/* RST_CTRL2 */
> +	[EN7523_XPON_PHY_RST]		= 0,
> +	[EN7523_XSI_MAC_RST]		= 7,
> +	[EN7523_XSI_PHY_RST]		= 8,
> +	[EN7523_NPU_RST]		= 9,
> +	[EN7523_I2S_RST]		= 10,
> +	[EN7523_TRNG_RST]		= 11,
> +	[EN7523_TRNG_MSTART_RST]	= 12,
> +	[EN7523_DUAL_HSI0_RST]		= 13,
> +	[EN7523_DUAL_HSI1_RST]		= 14,
> +	[EN7523_HSI_RST]		= 15,
> +	[EN7523_DUAL_HSI0_MAC_RST]	= 16,
> +	[EN7523_DUAL_HSI1_MAC_RST]	= 17,
> +	[EN7523_HSI_MAC_RST]		= 18,
> +	[EN7523_WDMA_RST]		= 19,
> +	[EN7523_WOE0_RST]		= 20,
> +	[EN7523_WOE1_RST]		= 21,
> +	[EN7523_HSDMA_RST]		= 22,
> +	[EN7523_I2C2RBUS_RST]		= 23,
> +	[EN7523_TDMA_RST]		= 24,
> +	/* RST_CTRL1 */
> +	[EN7523_PCM1_ZSI_ISI_RST]	= RST_NR_PER_BANK + 0,
> +	[EN7523_FE_PDMA_RST]		= RST_NR_PER_BANK + 1,
> +	[EN7523_FE_QDMA_RST]		= RST_NR_PER_BANK + 2,
> +	[EN7523_PCM_SPIWP_RST]		= RST_NR_PER_BANK + 4,
> +	[EN7523_CRYPTO_RST]		= RST_NR_PER_BANK + 6,
> +	[EN7523_TIMER_RST]		= RST_NR_PER_BANK + 8,
> +	[EN7523_PCM1_RST]		= RST_NR_PER_BANK + 11,
> +	[EN7523_UART_RST]		= RST_NR_PER_BANK + 12,
> +	[EN7523_GPIO_RST]		= RST_NR_PER_BANK + 13,
> +	[EN7523_GDMA_RST]		= RST_NR_PER_BANK + 14,
> +	[EN7523_I2C_MASTER_RST]		= RST_NR_PER_BANK + 16,
> +	[EN7523_PCM2_ZSI_ISI_RST]	= RST_NR_PER_BANK + 17,
> +	[EN7523_SFC_RST]		= RST_NR_PER_BANK + 18,
> +	[EN7523_UART2_RST]		= RST_NR_PER_BANK + 19,
> +	[EN7523_GDMP_RST]		= RST_NR_PER_BANK + 20,
> +	[EN7523_FE_RST]			= RST_NR_PER_BANK + 21,
> +	[EN7523_USB_HOST_P0_RST]	= RST_NR_PER_BANK + 22,
> +	[EN7523_GSW_RST]		= RST_NR_PER_BANK + 23,
> +	[EN7523_SFC2_PCM_RST]		= RST_NR_PER_BANK + 25,
> +	[EN7523_PCIE0_RST]		= RST_NR_PER_BANK + 26,
> +	[EN7523_PCIE1_RST]		= RST_NR_PER_BANK + 27,
> +	[EN7523_PCIE_HB_RST]		= RST_NR_PER_BANK + 29,
> +	[EN7523_XPON_MAC_RST]		= RST_NR_PER_BANK + 31,
> +};
> +
>   static const u16 en7581_rst_map[] = {
>   	/* RST_CTRL2 */
>   	[EN7581_XPON_PHY_RST]		= 0,
> @@ -357,6 +405,9 @@ static const u16 en7581_rst_map[] = {
>   	[EN7581_XPON_MAC_RST]		= RST_NR_PER_BANK + 31,
>   };
>   
> +static int en75xx_reset_register(struct device *dev, void __iomem *base,
> +				 const u16 *rst_map, int nr_resets);
> +
>   static u32 en7523_get_base_rate(const struct en_clk_desc *desc, u32 val)
>   {
>   	if (!desc->base_bits)
> @@ -552,7 +603,8 @@ static int en7523_clk_hw_init(struct platform_device *pdev,
>   
>   	en7523_register_clocks(&pdev->dev, clk_data, base, np_base);
>   
> -	return 0;
> +	return en75xx_reset_register(&pdev->dev, np_base, en7523_rst_map,
> +				     ARRAY_SIZE(en7523_rst_map));
>   }
>   
>   static void en7581_register_clocks(struct device *dev, struct clk_hw_onecell_data *clk_data,
> @@ -646,13 +698,14 @@ static int en7523_reset_xlate(struct reset_controller_dev *rcdev,
>   	return rst_data->idx_map[reset_spec->args[0]];
>   }
>   
> -static const struct reset_control_ops en7581_reset_ops = {
> +static const struct reset_control_ops en75xx_reset_ops = {

Same, no need to rename.

>   	.assert = en7523_reset_assert,
>   	.deassert = en7523_reset_deassert,
>   	.status = en7523_reset_status,
>   };
>   
> -static int en7581_reset_register(struct device *dev, void __iomem *base)
> +static int en75xx_reset_register(struct device *dev, void __iomem *base,
> +				 const u16 *rst_map, int nr_resets)

And again. No need to rename.

Cheers,
Angelo

Re: [PATCH 1/2] dt-bindings: clock: airoha: Add reset support to EN7523 clock binding

[AngeloGioacchino Del Regno]

Il 24/09/25 08:05, Mikhail Kshevetskiy ha scritto:
> Introduce reset capability to EN7523 device-tree clock binding
> documentation. Also this patch makes mandatory '#reset-cells'
> property for EN7523 SoC dts.
> 
> Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
> ---
>   .../bindings/clock/airoha,en7523-scu.yaml     |  4 +-
>   .../dt-bindings/reset/airoha,en7523-reset.h   | 61 +++++++++++++++++++
>   2 files changed, 63 insertions(+), 2 deletions(-)
>   create mode 100644 include/dt-bindings/reset/airoha,en7523-reset.h
> 
> diff --git a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
> index fe2c5c1baf43..a0df16485300 100644
> --- a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
> +++ b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
> @@ -53,6 +53,7 @@ required:
>     - compatible
>     - reg
>     - '#clock-cells'
> +  - '#reset-cells'

I can't find any reason why #reset-cells should be a required property: this is a
clock controller, it doesn't necessarily have to provide resets, and you don't
necessarily have to use resets, so this shall not be a required property.


>   
>   allOf:
>     - if:
> @@ -64,8 +65,6 @@ allOf:
>           reg:
>             minItems: 2
>   
> -        '#reset-cells': false
> -
>     - if:
>         properties:
>           compatible:
> @@ -85,6 +84,7 @@ examples:
>         reg = <0x1fa20000 0x400>,
>               <0x1fb00000 0x1000>;
>         #clock-cells = <1>;
> +      #reset-cells = <1>;
>       };
>   
>     - |

Regards,
Angelo

[PATCH v2 0/3] clk: en7523: reset-controller support for EN7523 SoC

[Mikhail Kshevetskiy]

These patches:
 * adds reset-controller support for EN7523 SoC
 * updates dt-bindings
 * updates en7523 dtsi

Reset-controller support will allow us more easily reusing of en7581 drivers
for en7523.

Changes v2:
 * keep '#reset-cells' property optional
 * put dtsi changes to a separate commit
 * add missed dtsi include

Mikhail Kshevetskiy (3):
  dt-bindings: clock: airoha: Add reset support to EN7523 clock binding
  clk: en7523: Add reset-controller support for EN7523 SoC
  ARM: dts: airoha: update EN7523 dtsi to support resets

 .../bindings/clock/airoha,en7523-scu.yaml     |  3 +-
 arch/arm/boot/dts/airoha/en7523.dtsi          |  2 +
 drivers/clk/clk-en7523.c                      | 72 ++++++++++++++++---
 .../dt-bindings/reset/airoha,en7523-reset.h   | 61 ++++++++++++++++
 4 files changed, 127 insertions(+), 11 deletions(-)
 create mode 100644 include/dt-bindings/reset/airoha,en7523-reset.h

-- 
2.51.0

[PATCH v2 1/3] dt-bindings: clock: airoha: Add reset support to EN7523 clock binding

[Mikhail Kshevetskiy]

Introduce reset capability to EN7523 device-tree clock binding
documentation.

Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
---
 .../bindings/clock/airoha,en7523-scu.yaml     |  3 +-
 .../dt-bindings/reset/airoha,en7523-reset.h   | 61 +++++++++++++++++++
 2 files changed, 62 insertions(+), 2 deletions(-)
 create mode 100644 include/dt-bindings/reset/airoha,en7523-reset.h

diff --git a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
index fe2c5c1baf43..a8471367175b 100644
--- a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
+++ b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
@@ -64,8 +64,6 @@ allOf:
         reg:
           minItems: 2
 
-        '#reset-cells': false
-
   - if:
       properties:
         compatible:
@@ -85,6 +83,7 @@ examples:
       reg = <0x1fa20000 0x400>,
             <0x1fb00000 0x1000>;
       #clock-cells = <1>;
+      #reset-cells = <1>;
     };
 
   - |
diff --git a/include/dt-bindings/reset/airoha,en7523-reset.h b/include/dt-bindings/reset/airoha,en7523-reset.h
new file mode 100644
index 000000000000..211e8a23a21c
--- /dev/null
+++ b/include/dt-bindings/reset/airoha,en7523-reset.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2024 iopsys Software Solutions AB.
+ * Copyright (C) 2025 Genexis AB.
+ *
+ * Author: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
+ *
+ * based on
+ *   include/dt-bindings/reset/airoha,en7581-reset.h
+ * by Lorenzo Bianconi <lorenzo@kernel.org>
+ */
+
+#ifndef __DT_BINDINGS_RESET_CONTROLLER_AIROHA_EN7523_H_
+#define __DT_BINDINGS_RESET_CONTROLLER_AIROHA_EN7523_H_
+
+/* RST_CTRL2 */
+#define EN7523_XPON_PHY_RST		 0
+#define EN7523_XSI_MAC_RST		 1
+#define EN7523_XSI_PHY_RST		 2
+#define EN7523_NPU_RST			 3
+#define EN7523_I2S_RST			 4
+#define EN7523_TRNG_RST			 5
+#define EN7523_TRNG_MSTART_RST		 6
+#define EN7523_DUAL_HSI0_RST		 7
+#define EN7523_DUAL_HSI1_RST		 8
+#define EN7523_HSI_RST			 9
+#define EN7523_DUAL_HSI0_MAC_RST	10
+#define EN7523_DUAL_HSI1_MAC_RST	11
+#define EN7523_HSI_MAC_RST		12
+#define EN7523_WDMA_RST			13
+#define EN7523_WOE0_RST			14
+#define EN7523_WOE1_RST			15
+#define EN7523_HSDMA_RST		16
+#define EN7523_I2C2RBUS_RST		17
+#define EN7523_TDMA_RST			18
+/* RST_CTRL1 */
+#define EN7523_PCM1_ZSI_ISI_RST		19
+#define EN7523_FE_PDMA_RST		20
+#define EN7523_FE_QDMA_RST		21
+#define EN7523_PCM_SPIWP_RST		22
+#define EN7523_CRYPTO_RST		23
+#define EN7523_TIMER_RST		24
+#define EN7523_PCM1_RST			25
+#define EN7523_UART_RST			26
+#define EN7523_GPIO_RST			27
+#define EN7523_GDMA_RST			28
+#define EN7523_I2C_MASTER_RST		29
+#define EN7523_PCM2_ZSI_ISI_RST		30
+#define EN7523_SFC_RST			31
+#define EN7523_UART2_RST		32
+#define EN7523_GDMP_RST			33
+#define EN7523_FE_RST			34
+#define EN7523_USB_HOST_P0_RST		35
+#define EN7523_GSW_RST			36
+#define EN7523_SFC2_PCM_RST		37
+#define EN7523_PCIE0_RST		38
+#define EN7523_PCIE1_RST		39
+#define EN7523_PCIE_HB_RST		40
+#define EN7523_XPON_MAC_RST		41
+
+#endif /* __DT_BINDINGS_RESET_CONTROLLER_AIROHA_EN7523_H_ */
-- 
2.51.0

[PATCH v2 2/3] clk: en7523: Add reset-controller support for EN7523 SoC

[Mikhail Kshevetskiy]

Introduce reset API support to EN7523 clock driver. EN7523 uses the
same reset logic as EN7581, so just reuse existing code. The patch
renames:
 * en7581_rst_ofs to en75xx_rst_ofs,
 * en7581_reset_register() to en75xx_reset_register()
because they are not en7581 specific.

Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
---
 drivers/clk/clk-en7523.c | 72 +++++++++++++++++++++++++++++++++++-----
 1 file changed, 63 insertions(+), 9 deletions(-)

diff --git a/drivers/clk/clk-en7523.c b/drivers/clk/clk-en7523.c
index 15bbdeb60b8e..f276937181b9 100644
--- a/drivers/clk/clk-en7523.c
+++ b/drivers/clk/clk-en7523.c
@@ -9,6 +9,7 @@
 #include <linux/regmap.h>
 #include <linux/reset-controller.h>
 #include <dt-bindings/clock/en7523-clk.h>
+#include <dt-bindings/reset/airoha,en7523-reset.h>
 #include <dt-bindings/reset/airoha,en7581-reset.h>
 
 #define RST_NR_PER_BANK			32
@@ -294,11 +295,58 @@ static const struct en_clk_desc en7581_base_clks[] = {
 	}
 };
 
-static const u16 en7581_rst_ofs[] = {
+static const u16 en75xx_rst_ofs[] = {
 	REG_RST_CTRL2,
 	REG_RST_CTRL1,
 };
 
+static const u16 en7523_rst_map[] = {
+	/* RST_CTRL2 */
+	[EN7523_XPON_PHY_RST]		= 0,
+	[EN7523_XSI_MAC_RST]		= 7,
+	[EN7523_XSI_PHY_RST]		= 8,
+	[EN7523_NPU_RST]		= 9,
+	[EN7523_I2S_RST]		= 10,
+	[EN7523_TRNG_RST]		= 11,
+	[EN7523_TRNG_MSTART_RST]	= 12,
+	[EN7523_DUAL_HSI0_RST]		= 13,
+	[EN7523_DUAL_HSI1_RST]		= 14,
+	[EN7523_HSI_RST]		= 15,
+	[EN7523_DUAL_HSI0_MAC_RST]	= 16,
+	[EN7523_DUAL_HSI1_MAC_RST]	= 17,
+	[EN7523_HSI_MAC_RST]		= 18,
+	[EN7523_WDMA_RST]		= 19,
+	[EN7523_WOE0_RST]		= 20,
+	[EN7523_WOE1_RST]		= 21,
+	[EN7523_HSDMA_RST]		= 22,
+	[EN7523_I2C2RBUS_RST]		= 23,
+	[EN7523_TDMA_RST]		= 24,
+	/* RST_CTRL1 */
+	[EN7523_PCM1_ZSI_ISI_RST]	= RST_NR_PER_BANK + 0,
+	[EN7523_FE_PDMA_RST]		= RST_NR_PER_BANK + 1,
+	[EN7523_FE_QDMA_RST]		= RST_NR_PER_BANK + 2,
+	[EN7523_PCM_SPIWP_RST]		= RST_NR_PER_BANK + 4,
+	[EN7523_CRYPTO_RST]		= RST_NR_PER_BANK + 6,
+	[EN7523_TIMER_RST]		= RST_NR_PER_BANK + 8,
+	[EN7523_PCM1_RST]		= RST_NR_PER_BANK + 11,
+	[EN7523_UART_RST]		= RST_NR_PER_BANK + 12,
+	[EN7523_GPIO_RST]		= RST_NR_PER_BANK + 13,
+	[EN7523_GDMA_RST]		= RST_NR_PER_BANK + 14,
+	[EN7523_I2C_MASTER_RST]		= RST_NR_PER_BANK + 16,
+	[EN7523_PCM2_ZSI_ISI_RST]	= RST_NR_PER_BANK + 17,
+	[EN7523_SFC_RST]		= RST_NR_PER_BANK + 18,
+	[EN7523_UART2_RST]		= RST_NR_PER_BANK + 19,
+	[EN7523_GDMP_RST]		= RST_NR_PER_BANK + 20,
+	[EN7523_FE_RST]			= RST_NR_PER_BANK + 21,
+	[EN7523_USB_HOST_P0_RST]	= RST_NR_PER_BANK + 22,
+	[EN7523_GSW_RST]		= RST_NR_PER_BANK + 23,
+	[EN7523_SFC2_PCM_RST]		= RST_NR_PER_BANK + 25,
+	[EN7523_PCIE0_RST]		= RST_NR_PER_BANK + 26,
+	[EN7523_PCIE1_RST]		= RST_NR_PER_BANK + 27,
+	[EN7523_PCIE_HB_RST]		= RST_NR_PER_BANK + 29,
+	[EN7523_XPON_MAC_RST]		= RST_NR_PER_BANK + 31,
+};
+
 static const u16 en7581_rst_map[] = {
 	/* RST_CTRL2 */
 	[EN7581_XPON_PHY_RST]		= 0,
@@ -357,6 +405,9 @@ static const u16 en7581_rst_map[] = {
 	[EN7581_XPON_MAC_RST]		= RST_NR_PER_BANK + 31,
 };
 
+static int en75xx_reset_register(struct device *dev, void __iomem *base,
+				 const u16 *rst_map, int nr_resets);
+
 static u32 en7523_get_base_rate(const struct en_clk_desc *desc, u32 val)
 {
 	if (!desc->base_bits)
@@ -552,7 +603,8 @@ static int en7523_clk_hw_init(struct platform_device *pdev,
 
 	en7523_register_clocks(&pdev->dev, clk_data, base, np_base);
 
-	return 0;
+	return en75xx_reset_register(&pdev->dev, np_base, en7523_rst_map,
+				     ARRAY_SIZE(en7523_rst_map));
 }
 
 static void en7581_register_clocks(struct device *dev, struct clk_hw_onecell_data *clk_data,
@@ -646,13 +698,14 @@ static int en7523_reset_xlate(struct reset_controller_dev *rcdev,
 	return rst_data->idx_map[reset_spec->args[0]];
 }
 
-static const struct reset_control_ops en7581_reset_ops = {
+static const struct reset_control_ops en75xx_reset_ops = {
 	.assert = en7523_reset_assert,
 	.deassert = en7523_reset_deassert,
 	.status = en7523_reset_status,
 };
 
-static int en7581_reset_register(struct device *dev, void __iomem *base)
+static int en75xx_reset_register(struct device *dev, void __iomem *base,
+				 const u16 *rst_map, int nr_resets)
 {
 	struct en_rst_data *rst_data;
 
@@ -660,13 +713,13 @@ static int en7581_reset_register(struct device *dev, void __iomem *base)
 	if (!rst_data)
 		return -ENOMEM;
 
-	rst_data->bank_ofs = en7581_rst_ofs;
-	rst_data->idx_map = en7581_rst_map;
+	rst_data->bank_ofs = en75xx_rst_ofs;
+	rst_data->idx_map = rst_map;
 	rst_data->base = base;
 
-	rst_data->rcdev.nr_resets = ARRAY_SIZE(en7581_rst_map);
+	rst_data->rcdev.nr_resets = nr_resets;
 	rst_data->rcdev.of_xlate = en7523_reset_xlate;
-	rst_data->rcdev.ops = &en7581_reset_ops;
+	rst_data->rcdev.ops = &en75xx_reset_ops;
 	rst_data->rcdev.of_node = dev->of_node;
 	rst_data->rcdev.of_reset_n_cells = 1;
 	rst_data->rcdev.owner = THIS_MODULE;
@@ -698,7 +751,8 @@ static int en7581_clk_hw_init(struct platform_device *pdev,
 	val = readl(base + REG_NP_SCU_PCIC);
 	writel(val | 3, base + REG_NP_SCU_PCIC);
 
-	return en7581_reset_register(&pdev->dev, base);
+	return en75xx_reset_register(&pdev->dev, base, en7581_rst_map,
+				     ARRAY_SIZE(en7581_rst_map));
 }
 
 static int en7523_clk_probe(struct platform_device *pdev)
-- 
2.51.0

[PATCH v2 3/3] ARM: dts: airoha: update EN7523 dtsi to support resets

[Mikhail Kshevetskiy]

This patch updates EN7523 dtsi to reflect the reset-controller
support for EN7523 SoC.

Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
---
 arch/arm/boot/dts/airoha/en7523.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/airoha/en7523.dtsi b/arch/arm/boot/dts/airoha/en7523.dtsi
index b523a868c4ad..231638b25c5b 100644
--- a/arch/arm/boot/dts/airoha/en7523.dtsi
+++ b/arch/arm/boot/dts/airoha/en7523.dtsi
@@ -4,6 +4,7 @@
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/clock/en7523-clk.h>
+#include <dt-bindings/reset/airoha,en7523-reset.h>
 
 / {
 	interrupt-parent = <&gic>;
@@ -91,6 +92,7 @@ scu: system-controller@1fa20000 {
 		reg = <0x1fa20000 0x400>,
 		      <0x1fb00000 0x1000>;
 		#clock-cells = <1>;
+		#reset-cells = <1>;
 	};
 
 	gic: interrupt-controller@9000000 {
-- 
2.51.0

Re: [PATCH v2 2/3] clk: en7523: Add reset-controller support for EN7523 SoC

[AngeloGioacchino Del Regno]

Il 24/09/25 11:41, Mikhail Kshevetskiy ha scritto:
> Introduce reset API support to EN7523 clock driver. EN7523 uses the
> same reset logic as EN7581, so just reuse existing code. The patch
> renames:
>   * en7581_rst_ofs to en75xx_rst_ofs,
>   * en7581_reset_register() to en75xx_reset_register()
> because they are not en7581 specific.

You ignored all of my comments (sent at v1) on this patch.

Regards,
Angelo

> 
> Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
> ---

Re: [PATCH v2 2/3] clk: en7523: Add reset-controller support for EN7523 SoC

[Mikhail Kshevetskiy]

On 24.09.2025 13:20, AngeloGioacchino Del Regno wrote:
> Il 24/09/25 11:41, Mikhail Kshevetskiy ha scritto:
>> Introduce reset API support to EN7523 clock driver. EN7523 uses the
>> same reset logic as EN7581, so just reuse existing code. The patch
>> renames:
>>   * en7581_rst_ofs to en75xx_rst_ofs,
>>   * en7581_reset_register() to en75xx_reset_register()
>> because they are not en7581 specific.
>
> You ignored all of my comments (sent at v1) on this patch.

sorry, I just miss it.


>
> Regards,
> Angelo
>
>>
>> Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
>> ---

[PATCH v3 0/3] clk: en7523: reset-controller support for EN7523 SoC

[Mikhail Kshevetskiy]

These patches:
 * adds reset-controller support for EN7523 SoC
 * updates dt-bindings
 * updates en7523 dtsi

Reset-controller support will allow us more easily reusing of en7581 drivers
for en7523.

Changes v2:
 * keep '#reset-cells' property optional
 * put dtsi changes to a separate commit
 * add missed dtsi include

Changes v3:
 * keep en7581 prefix for common en7523/en7581 variables and functions

Mikhail Kshevetskiy (3):
  dt-bindings: clock: airoha: Add reset support to EN7523 clock binding
  clk: en7523: Add reset-controller support for EN7523 SoC
  ARM: dts: airoha: update EN7523 dtsi to support resets

 .../bindings/clock/airoha,en7523-scu.yaml     |  3 +-
 arch/arm/boot/dts/airoha/en7523.dtsi          |  2 +
 drivers/clk/clk-en7523.c                      | 64 +++++++++++++++++--
 .../dt-bindings/reset/airoha,en7523-reset.h   | 61 ++++++++++++++++++
 4 files changed, 123 insertions(+), 7 deletions(-)
 create mode 100644 include/dt-bindings/reset/airoha,en7523-reset.h

-- 
2.51.0

[PATCH v3 1/3] dt-bindings: clock: airoha: Add reset support to EN7523 clock binding

[Mikhail Kshevetskiy]

Introduce reset capability to EN7523 device-tree clock binding
documentation.

Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
---
 .../bindings/clock/airoha,en7523-scu.yaml     |  3 +-
 .../dt-bindings/reset/airoha,en7523-reset.h   | 61 +++++++++++++++++++
 2 files changed, 62 insertions(+), 2 deletions(-)
 create mode 100644 include/dt-bindings/reset/airoha,en7523-reset.h

diff --git a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
index fe2c5c1baf43..a8471367175b 100644
--- a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
+++ b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
@@ -64,8 +64,6 @@ allOf:
         reg:
           minItems: 2
 
-        '#reset-cells': false
-
   - if:
       properties:
         compatible:
@@ -85,6 +83,7 @@ examples:
       reg = <0x1fa20000 0x400>,
             <0x1fb00000 0x1000>;
       #clock-cells = <1>;
+      #reset-cells = <1>;
     };
 
   - |
diff --git a/include/dt-bindings/reset/airoha,en7523-reset.h b/include/dt-bindings/reset/airoha,en7523-reset.h
new file mode 100644
index 000000000000..211e8a23a21c
--- /dev/null
+++ b/include/dt-bindings/reset/airoha,en7523-reset.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2024 iopsys Software Solutions AB.
+ * Copyright (C) 2025 Genexis AB.
+ *
+ * Author: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
+ *
+ * based on
+ *   include/dt-bindings/reset/airoha,en7581-reset.h
+ * by Lorenzo Bianconi <lorenzo@kernel.org>
+ */
+
+#ifndef __DT_BINDINGS_RESET_CONTROLLER_AIROHA_EN7523_H_
+#define __DT_BINDINGS_RESET_CONTROLLER_AIROHA_EN7523_H_
+
+/* RST_CTRL2 */
+#define EN7523_XPON_PHY_RST		 0
+#define EN7523_XSI_MAC_RST		 1
+#define EN7523_XSI_PHY_RST		 2
+#define EN7523_NPU_RST			 3
+#define EN7523_I2S_RST			 4
+#define EN7523_TRNG_RST			 5
+#define EN7523_TRNG_MSTART_RST		 6
+#define EN7523_DUAL_HSI0_RST		 7
+#define EN7523_DUAL_HSI1_RST		 8
+#define EN7523_HSI_RST			 9
+#define EN7523_DUAL_HSI0_MAC_RST	10
+#define EN7523_DUAL_HSI1_MAC_RST	11
+#define EN7523_HSI_MAC_RST		12
+#define EN7523_WDMA_RST			13
+#define EN7523_WOE0_RST			14
+#define EN7523_WOE1_RST			15
+#define EN7523_HSDMA_RST		16
+#define EN7523_I2C2RBUS_RST		17
+#define EN7523_TDMA_RST			18
+/* RST_CTRL1 */
+#define EN7523_PCM1_ZSI_ISI_RST		19
+#define EN7523_FE_PDMA_RST		20
+#define EN7523_FE_QDMA_RST		21
+#define EN7523_PCM_SPIWP_RST		22
+#define EN7523_CRYPTO_RST		23
+#define EN7523_TIMER_RST		24
+#define EN7523_PCM1_RST			25
+#define EN7523_UART_RST			26
+#define EN7523_GPIO_RST			27
+#define EN7523_GDMA_RST			28
+#define EN7523_I2C_MASTER_RST		29
+#define EN7523_PCM2_ZSI_ISI_RST		30
+#define EN7523_SFC_RST			31
+#define EN7523_UART2_RST		32
+#define EN7523_GDMP_RST			33
+#define EN7523_FE_RST			34
+#define EN7523_USB_HOST_P0_RST		35
+#define EN7523_GSW_RST			36
+#define EN7523_SFC2_PCM_RST		37
+#define EN7523_PCIE0_RST		38
+#define EN7523_PCIE1_RST		39
+#define EN7523_PCIE_HB_RST		40
+#define EN7523_XPON_MAC_RST		41
+
+#endif /* __DT_BINDINGS_RESET_CONTROLLER_AIROHA_EN7523_H_ */
-- 
2.51.0

[PATCH v3 2/3] clk: en7523: Add reset-controller support for EN7523 SoC

[Mikhail Kshevetskiy]

Introduce reset API support to EN7523 clock driver. EN7523 uses the
same reset logic as EN7581, so just reuse existing code.

Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
---
 drivers/clk/clk-en7523.c | 64 ++++++++++++++++++++++++++++++++++++----
 1 file changed, 59 insertions(+), 5 deletions(-)

diff --git a/drivers/clk/clk-en7523.c b/drivers/clk/clk-en7523.c
index 15bbdeb60b8e..08cc8e5acf43 100644
--- a/drivers/clk/clk-en7523.c
+++ b/drivers/clk/clk-en7523.c
@@ -9,6 +9,7 @@
 #include <linux/regmap.h>
 #include <linux/reset-controller.h>
 #include <dt-bindings/clock/en7523-clk.h>
+#include <dt-bindings/reset/airoha,en7523-reset.h>
 #include <dt-bindings/reset/airoha,en7581-reset.h>
 
 #define RST_NR_PER_BANK			32
@@ -299,6 +300,53 @@ static const u16 en7581_rst_ofs[] = {
 	REG_RST_CTRL1,
 };
 
+static const u16 en7523_rst_map[] = {
+	/* RST_CTRL2 */
+	[EN7523_XPON_PHY_RST]		= 0,
+	[EN7523_XSI_MAC_RST]		= 7,
+	[EN7523_XSI_PHY_RST]		= 8,
+	[EN7523_NPU_RST]		= 9,
+	[EN7523_I2S_RST]		= 10,
+	[EN7523_TRNG_RST]		= 11,
+	[EN7523_TRNG_MSTART_RST]	= 12,
+	[EN7523_DUAL_HSI0_RST]		= 13,
+	[EN7523_DUAL_HSI1_RST]		= 14,
+	[EN7523_HSI_RST]		= 15,
+	[EN7523_DUAL_HSI0_MAC_RST]	= 16,
+	[EN7523_DUAL_HSI1_MAC_RST]	= 17,
+	[EN7523_HSI_MAC_RST]		= 18,
+	[EN7523_WDMA_RST]		= 19,
+	[EN7523_WOE0_RST]		= 20,
+	[EN7523_WOE1_RST]		= 21,
+	[EN7523_HSDMA_RST]		= 22,
+	[EN7523_I2C2RBUS_RST]		= 23,
+	[EN7523_TDMA_RST]		= 24,
+	/* RST_CTRL1 */
+	[EN7523_PCM1_ZSI_ISI_RST]	= RST_NR_PER_BANK + 0,
+	[EN7523_FE_PDMA_RST]		= RST_NR_PER_BANK + 1,
+	[EN7523_FE_QDMA_RST]		= RST_NR_PER_BANK + 2,
+	[EN7523_PCM_SPIWP_RST]		= RST_NR_PER_BANK + 4,
+	[EN7523_CRYPTO_RST]		= RST_NR_PER_BANK + 6,
+	[EN7523_TIMER_RST]		= RST_NR_PER_BANK + 8,
+	[EN7523_PCM1_RST]		= RST_NR_PER_BANK + 11,
+	[EN7523_UART_RST]		= RST_NR_PER_BANK + 12,
+	[EN7523_GPIO_RST]		= RST_NR_PER_BANK + 13,
+	[EN7523_GDMA_RST]		= RST_NR_PER_BANK + 14,
+	[EN7523_I2C_MASTER_RST]		= RST_NR_PER_BANK + 16,
+	[EN7523_PCM2_ZSI_ISI_RST]	= RST_NR_PER_BANK + 17,
+	[EN7523_SFC_RST]		= RST_NR_PER_BANK + 18,
+	[EN7523_UART2_RST]		= RST_NR_PER_BANK + 19,
+	[EN7523_GDMP_RST]		= RST_NR_PER_BANK + 20,
+	[EN7523_FE_RST]			= RST_NR_PER_BANK + 21,
+	[EN7523_USB_HOST_P0_RST]	= RST_NR_PER_BANK + 22,
+	[EN7523_GSW_RST]		= RST_NR_PER_BANK + 23,
+	[EN7523_SFC2_PCM_RST]		= RST_NR_PER_BANK + 25,
+	[EN7523_PCIE0_RST]		= RST_NR_PER_BANK + 26,
+	[EN7523_PCIE1_RST]		= RST_NR_PER_BANK + 27,
+	[EN7523_PCIE_HB_RST]		= RST_NR_PER_BANK + 29,
+	[EN7523_XPON_MAC_RST]		= RST_NR_PER_BANK + 31,
+};
+
 static const u16 en7581_rst_map[] = {
 	/* RST_CTRL2 */
 	[EN7581_XPON_PHY_RST]		= 0,
@@ -357,6 +405,9 @@ static const u16 en7581_rst_map[] = {
 	[EN7581_XPON_MAC_RST]		= RST_NR_PER_BANK + 31,
 };
 
+static int en7581_reset_register(struct device *dev, void __iomem *base,
+				 const u16 *rst_map, int nr_resets);
+
 static u32 en7523_get_base_rate(const struct en_clk_desc *desc, u32 val)
 {
 	if (!desc->base_bits)
@@ -552,7 +603,8 @@ static int en7523_clk_hw_init(struct platform_device *pdev,
 
 	en7523_register_clocks(&pdev->dev, clk_data, base, np_base);
 
-	return 0;
+	return en7581_reset_register(&pdev->dev, np_base, en7523_rst_map,
+				     ARRAY_SIZE(en7523_rst_map));
 }
 
 static void en7581_register_clocks(struct device *dev, struct clk_hw_onecell_data *clk_data,
@@ -652,7 +704,8 @@ static const struct reset_control_ops en7581_reset_ops = {
 	.status = en7523_reset_status,
 };
 
-static int en7581_reset_register(struct device *dev, void __iomem *base)
+static int en7581_reset_register(struct device *dev, void __iomem *base,
+				 const u16 *rst_map, int nr_resets)
 {
 	struct en_rst_data *rst_data;
 
@@ -661,10 +714,10 @@ static int en7581_reset_register(struct device *dev, void __iomem *base)
 		return -ENOMEM;
 
 	rst_data->bank_ofs = en7581_rst_ofs;
-	rst_data->idx_map = en7581_rst_map;
+	rst_data->idx_map = rst_map;
 	rst_data->base = base;
 
-	rst_data->rcdev.nr_resets = ARRAY_SIZE(en7581_rst_map);
+	rst_data->rcdev.nr_resets = nr_resets;
 	rst_data->rcdev.of_xlate = en7523_reset_xlate;
 	rst_data->rcdev.ops = &en7581_reset_ops;
 	rst_data->rcdev.of_node = dev->of_node;
@@ -698,7 +751,8 @@ static int en7581_clk_hw_init(struct platform_device *pdev,
 	val = readl(base + REG_NP_SCU_PCIC);
 	writel(val | 3, base + REG_NP_SCU_PCIC);
 
-	return en7581_reset_register(&pdev->dev, base);
+	return en7581_reset_register(&pdev->dev, base, en7581_rst_map,
+				     ARRAY_SIZE(en7581_rst_map));
 }
 
 static int en7523_clk_probe(struct platform_device *pdev)
-- 
2.51.0

[PATCH v3 3/3] ARM: dts: airoha: update EN7523 dtsi to support resets

[Mikhail Kshevetskiy]

This patch updates EN7523 dtsi to reflect the reset-controller
support for EN7523 SoC.

Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
---
 arch/arm/boot/dts/airoha/en7523.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/airoha/en7523.dtsi b/arch/arm/boot/dts/airoha/en7523.dtsi
index b523a868c4ad..231638b25c5b 100644
--- a/arch/arm/boot/dts/airoha/en7523.dtsi
+++ b/arch/arm/boot/dts/airoha/en7523.dtsi
@@ -4,6 +4,7 @@
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/clock/en7523-clk.h>
+#include <dt-bindings/reset/airoha,en7523-reset.h>
 
 / {
 	interrupt-parent = <&gic>;
@@ -91,6 +92,7 @@ scu: system-controller@1fa20000 {
 		reg = <0x1fa20000 0x400>,
 		      <0x1fb00000 0x1000>;
 		#clock-cells = <1>;
+		#reset-cells = <1>;
 	};
 
 	gic: interrupt-controller@9000000 {
-- 
2.51.0

Re: [PATCH v3 2/3] clk: en7523: Add reset-controller support for EN7523 SoC

[AngeloGioacchino Del Regno]

Il 24/09/25 12:48, Mikhail Kshevetskiy ha scritto:
> Introduce reset API support to EN7523 clock driver. EN7523 uses the
> same reset logic as EN7581, so just reuse existing code.
> 
> Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>

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

Re: [PATCH v3 3/3] ARM: dts: airoha: update EN7523 dtsi to support resets

[AngeloGioacchino Del Regno]

Il 24/09/25 12:48, Mikhail Kshevetskiy ha scritto:
> This patch updates EN7523 dtsi to reflect the reset-controller
> support for EN7523 SoC.
> 
> Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>

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

Re: [PATCH v3 1/3] dt-bindings: clock: airoha: Add reset support to EN7523 clock binding

[Rob Herring (Arm)]

On Wed, 24 Sep 2025 13:48:48 +0300, Mikhail Kshevetskiy wrote:
> Introduce reset capability to EN7523 device-tree clock binding
> documentation.
> 
> Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
> ---
>  .../bindings/clock/airoha,en7523-scu.yaml     |  3 +-
>  .../dt-bindings/reset/airoha,en7523-reset.h   | 61 +++++++++++++++++++
>  2 files changed, 62 insertions(+), 2 deletions(-)
>  create mode 100644 include/dt-bindings/reset/airoha,en7523-reset.h
> 

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>

Re: [PATCH v3 0/3] clk: en7523: reset-controller support for EN7523 SoC

[Mikhail Kshevetskiy]

Is there any chances get it merged to linux-6.18?

Regards,
Mikhail Kshevetskiy

On 24.09.2025 13:48, Mikhail Kshevetskiy wrote:
> These patches:
>  * adds reset-controller support for EN7523 SoC
>  * updates dt-bindings
>  * updates en7523 dtsi
>
> Reset-controller support will allow us more easily reusing of en7581 drivers
> for en7523.
>
> Changes v2:
>  * keep '#reset-cells' property optional
>  * put dtsi changes to a separate commit
>  * add missed dtsi include
>
> Changes v3:
>  * keep en7581 prefix for common en7523/en7581 variables and functions
>
> Mikhail Kshevetskiy (3):
>   dt-bindings: clock: airoha: Add reset support to EN7523 clock binding
>   clk: en7523: Add reset-controller support for EN7523 SoC
>   ARM: dts: airoha: update EN7523 dtsi to support resets
>
>  .../bindings/clock/airoha,en7523-scu.yaml     |  3 +-
>  arch/arm/boot/dts/airoha/en7523.dtsi          |  2 +
>  drivers/clk/clk-en7523.c                      | 64 +++++++++++++++++--
>  .../dt-bindings/reset/airoha,en7523-reset.h   | 61 ++++++++++++++++++
>  4 files changed, 123 insertions(+), 7 deletions(-)
>  create mode 100644 include/dt-bindings/reset/airoha,en7523-reset.h
>