Merge branches 'clk-cleanup', 'clk-airoha', 'clk-mediatek', 'clk-sophgo' and 'clk-loongson' into clk-next

 - Airoha EN7581 SoC clk driver
 - Sophgo CV1800B, CV1812H and SG2000 SoC clk driver
 - Loongson-2k0500 and Loongson-2k2000 SoC clk driver

* clk-cleanup:
  clk: gemini: Remove an unused field in struct clk_gemini_pci
  clk: highbank: Remove an unused field in struct hb_clk
  clk: ti: dpll: fix incorrect #ifdef checks
  clk: nxp: Remove an unused field in struct lpc18xx_pll

* clk-airoha:
  clk: en7523: Add EN7581 support
  clk: en7523: Add en_clk_soc_data data structure
  dt-bindings: clock: airoha: add EN7581 binding

* clk-mediatek:
  clk: mediatek: mt8365-mm: fix DPI0 parent
  clk: mediatek: pllfh: Don't log error for missing fhctl node

* clk-sophgo:
  clk: sophgo: avoid open-coded 64-bit division
  clk: sophgo: Make synthesizer struct static
  clk: sophgo: Add clock support for SG2000 SoC
  clk: sophgo: Add clock support for CV1810 SoC
  clk: sophgo: Add clock support for CV1800 SoC
  dt-bindings: clock: sophgo: Add clock controller of SG2000 series SoC

* clk-loongson:
  clk: clk-loongson2: Add Loongson-2K2000 clock support
  dt-bindings: clock: loongson2: Add Loongson-2K2000 compatible
  clk: clk-loongson2: Add Loongson-2K0500 clock support
  dt-bindings: clock: loongson2: Add Loongson-2K0500 compatible
  clk: clk-loongson2: Refactor driver for adding new platforms
  dt-bindings: clock: Add Loongson-2K expand clock index

Author: bebarino

Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml

@@ -29,10 +29,13 @@ description: |
 properties:
   compatible:
     items:
-      - const: airoha,en7523-scu
+      - enum:
+          - airoha,en7523-scu
+          - airoha,en7581-scu
 
   reg:
-    maxItems: 2
+    minItems: 2
+    maxItems: 3
 
   "#clock-cells":
     description:
@@ -45,6 +48,30 @@ required:
   - reg
   - '#clock-cells'
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          const: airoha,en7523-scu
+    then:
+      properties:
+        reg:
+          items:
+            - description: scu base address
+            - description: misc scu base address
+
+  - if:
+      properties:
+        compatible:
+          const: airoha,en7581-scu
+    then:
+      properties:
+        reg:
+          items:
+            - description: scu base address
+            - description: misc scu base address
+            - description: pb scu base address
+
 additionalProperties: false
 
 examples:

Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml

@@ -16,7 +16,9 @@ description: |
 properties:
   compatible:
     enum:
-      - loongson,ls2k-clk
+      - loongson,ls2k0500-clk
+      - loongson,ls2k-clk  # This is for Loongson-2K1000
+      - loongson,ls2k2000-clk
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/clock/sophgo,cv1800-clk.yaml

@@ -4,7 +4,7 @@
 $id: http://devicetree.org/schemas/clock/sophgo,cv1800-clk.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Sophgo CV1800 Series Clock Controller
+title: Sophgo CV1800/SG2000 Series Clock Controller
 
 maintainers:
   - Inochi Amaoto <inochiama@outlook.com>
@@ -14,6 +14,7 @@ properties:
     enum:
       - sophgo,cv1800-clk
       - sophgo,cv1810-clk
+      - sophgo,sg2000-clk
 
   reg:
     maxItems: 1

drivers/clk/Kconfig

@@ -489,6 +489,7 @@ source "drivers/clk/rockchip/Kconfig"
 source "drivers/clk/samsung/Kconfig"
 source "drivers/clk/sifive/Kconfig"
 source "drivers/clk/socfpga/Kconfig"
+source "drivers/clk/sophgo/Kconfig"
 source "drivers/clk/sprd/Kconfig"
 source "drivers/clk/starfive/Kconfig"
 source "drivers/clk/sunxi/Kconfig"

drivers/clk/Makefile

@@ -118,6 +118,7 @@ obj-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip/
 obj-$(CONFIG_COMMON_CLK_SAMSUNG)	+= samsung/
 obj-$(CONFIG_CLK_SIFIVE)		+= sifive/
 obj-y					+= socfpga/
+obj-y					+= sophgo/
 obj-$(CONFIG_PLAT_SPEAR)		+= spear/
 obj-y					+= sprd/
 obj-$(CONFIG_ARCH_STI)			+= st/

drivers/clk/clk-en7523.c

@@ -3,25 +3,42 @@
 #include <linux/delay.h>
 #include <linux/clk-provider.h>
 #include <linux/io.h>
-#include <linux/of.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <dt-bindings/clock/en7523-clk.h>
 
 #define REG_PCI_CONTROL			0x88
 #define   REG_PCI_CONTROL_PERSTOUT	BIT(29)
 #define   REG_PCI_CONTROL_PERSTOUT1	BIT(26)
+#define   REG_PCI_CONTROL_REFCLK_EN0	BIT(23)
 #define   REG_PCI_CONTROL_REFCLK_EN1	BIT(22)
+#define   REG_PCI_CONTROL_PERSTOUT2	BIT(16)
 #define REG_GSW_CLK_DIV_SEL		0x1b4
 #define REG_EMI_CLK_DIV_SEL		0x1b8
 #define REG_BUS_CLK_DIV_SEL		0x1bc
 #define REG_SPI_CLK_DIV_SEL		0x1c4
 #define REG_SPI_CLK_FREQ_SEL		0x1c8
 #define REG_NPU_CLK_DIV_SEL		0x1fc
 #define REG_CRYPTO_CLKSRC		0x200
-#define REG_RESET_CONTROL		0x834
+#define REG_RESET_CONTROL2		0x830
+#define   REG_RESET2_CONTROL_PCIE2	BIT(27)
+#define REG_RESET_CONTROL1		0x834
 #define   REG_RESET_CONTROL_PCIEHB	BIT(29)
 #define   REG_RESET_CONTROL_PCIE1	BIT(27)
 #define   REG_RESET_CONTROL_PCIE2	BIT(26)
+/* EN7581 */
+#define REG_PCIE0_MEM			0x00
+#define REG_PCIE0_MEM_MASK		0x04
+#define REG_PCIE1_MEM			0x08
+#define REG_PCIE1_MEM_MASK		0x0c
+#define REG_PCIE2_MEM			0x10
+#define REG_PCIE2_MEM_MASK		0x14
+#define REG_PCIE_RESET_OPEN_DRAIN	0x018c
+#define REG_PCIE_RESET_OPEN_DRAIN_MASK	GENMASK(2, 0)
+#define REG_NP_SCU_PCIC			0x88
+#define REG_NP_SCU_SSTR			0x9c
+#define REG_PCIE_XSI0_SEL_MASK		GENMASK(14, 13)
+#define REG_PCIE_XSI1_SEL_MASK		GENMASK(12, 11)
 
 struct en_clk_desc {
 	int id;
@@ -47,6 +64,12 @@ struct en_clk_gate {
 	struct clk_hw hw;
 };
 
+struct en_clk_soc_data {
+	const struct clk_ops pcie_ops;
+	int (*hw_init)(struct platform_device *pdev, void __iomem *base,
+		       void __iomem *np_base);
+};
+
 static const u32 gsw_base[] = { 400000000, 500000000 };
 static const u32 emi_base[] = { 333000000, 400000000 };
 static const u32 bus_base[] = { 500000000, 540000000 };
@@ -145,11 +168,6 @@ static const struct en_clk_desc en7523_base_clks[] = {
 	}
 };
 
-static const struct of_device_id of_match_clk_en7523[] = {
-	{ .compatible = "airoha,en7523-scu", },
-	{ /* sentinel */ }
-};
-
 static unsigned int en7523_get_base_rate(void __iomem *base, unsigned int i)
 {
 	const struct en_clk_desc *desc = &en7523_base_clks[i];
@@ -212,14 +230,14 @@ static int en7523_pci_prepare(struct clk_hw *hw)
 	usleep_range(1000, 2000);
 
 	/* Reset to default */
-	val = readl(np_base + REG_RESET_CONTROL);
+	val = readl(np_base + REG_RESET_CONTROL1);
 	mask = REG_RESET_CONTROL_PCIE1 | REG_RESET_CONTROL_PCIE2 |
 	       REG_RESET_CONTROL_PCIEHB;
-	writel(val & ~mask, np_base + REG_RESET_CONTROL);
+	writel(val & ~mask, np_base + REG_RESET_CONTROL1);
 	usleep_range(1000, 2000);
-	writel(val | mask, np_base + REG_RESET_CONTROL);
+	writel(val | mask, np_base + REG_RESET_CONTROL1);
 	msleep(100);
-	writel(val & ~mask, np_base + REG_RESET_CONTROL);
+	writel(val & ~mask, np_base + REG_RESET_CONTROL1);
 	usleep_range(5000, 10000);
 
 	/* Release device */
@@ -247,14 +265,10 @@ static void en7523_pci_unprepare(struct clk_hw *hw)
 static struct clk_hw *en7523_register_pcie_clk(struct device *dev,
 					       void __iomem *np_base)
 {
-	static const struct clk_ops pcie_gate_ops = {
-		.is_enabled = en7523_pci_is_enabled,
-		.prepare = en7523_pci_prepare,
-		.unprepare = en7523_pci_unprepare,
-	};
+	const struct en_clk_soc_data *soc_data = device_get_match_data(dev);
 	struct clk_init_data init = {
 		.name = "pcie",
-		.ops = &pcie_gate_ops,
+		.ops = &soc_data->pcie_ops,
 	};
 	struct en_clk_gate *cg;
 
@@ -264,14 +278,122 @@ static struct clk_hw *en7523_register_pcie_clk(struct device *dev,
 
 	cg->base = np_base;
 	cg->hw.init = &init;
-	en7523_pci_unprepare(&cg->hw);
+
+	if (init.ops->disable)
+		init.ops->disable(&cg->hw);
+	init.ops->unprepare(&cg->hw);
 
 	if (clk_hw_register(dev, &cg->hw))
 		return NULL;
 
 	return &cg->hw;
 }
 
+static int en7581_pci_is_enabled(struct clk_hw *hw)
+{
+	struct en_clk_gate *cg = container_of(hw, struct en_clk_gate, hw);
+	u32 val, mask;
+
+	mask = REG_PCI_CONTROL_REFCLK_EN0 | REG_PCI_CONTROL_REFCLK_EN1;
+	val = readl(cg->base + REG_PCI_CONTROL);
+	return (val & mask) == mask;
+}
+
+static int en7581_pci_prepare(struct clk_hw *hw)
+{
+	struct en_clk_gate *cg = container_of(hw, struct en_clk_gate, hw);
+	void __iomem *np_base = cg->base;
+	u32 val, mask;
+
+	mask = REG_RESET_CONTROL_PCIE1 | REG_RESET_CONTROL_PCIE2 |
+	       REG_RESET_CONTROL_PCIEHB;
+	val = readl(np_base + REG_RESET_CONTROL1);
+	writel(val & ~mask, np_base + REG_RESET_CONTROL1);
+	val = readl(np_base + REG_RESET_CONTROL2);
+	writel(val & ~REG_RESET2_CONTROL_PCIE2, np_base + REG_RESET_CONTROL2);
+	usleep_range(5000, 10000);
+
+	return 0;
+}
+
+static int en7581_pci_enable(struct clk_hw *hw)
+{
+	struct en_clk_gate *cg = container_of(hw, struct en_clk_gate, hw);
+	void __iomem *np_base = cg->base;
+	u32 val, mask;
+
+	mask = REG_PCI_CONTROL_REFCLK_EN0 | REG_PCI_CONTROL_REFCLK_EN1 |
+	       REG_PCI_CONTROL_PERSTOUT1 | REG_PCI_CONTROL_PERSTOUT2 |
+	       REG_PCI_CONTROL_PERSTOUT;
+	val = readl(np_base + REG_PCI_CONTROL);
+	writel(val | mask, np_base + REG_PCI_CONTROL);
+	msleep(250);
+
+	return 0;
+}
+
+static void en7581_pci_unprepare(struct clk_hw *hw)
+{
+	struct en_clk_gate *cg = container_of(hw, struct en_clk_gate, hw);
+	void __iomem *np_base = cg->base;
+	u32 val, mask;
+
+	mask = REG_RESET_CONTROL_PCIE1 | REG_RESET_CONTROL_PCIE2 |
+	       REG_RESET_CONTROL_PCIEHB;
+	val = readl(np_base + REG_RESET_CONTROL1);
+	writel(val | mask, np_base + REG_RESET_CONTROL1);
+	mask = REG_RESET_CONTROL_PCIE1 | REG_RESET_CONTROL_PCIE2;
+	writel(val | mask, np_base + REG_RESET_CONTROL1);
+	val = readl(np_base + REG_RESET_CONTROL2);
+	writel(val | REG_RESET_CONTROL_PCIE2, np_base + REG_RESET_CONTROL2);
+	msleep(100);
+}
+
+static void en7581_pci_disable(struct clk_hw *hw)
+{
+	struct en_clk_gate *cg = container_of(hw, struct en_clk_gate, hw);
+	void __iomem *np_base = cg->base;
+	u32 val, mask;
+
+	mask = REG_PCI_CONTROL_REFCLK_EN0 | REG_PCI_CONTROL_REFCLK_EN1 |
+	       REG_PCI_CONTROL_PERSTOUT1 | REG_PCI_CONTROL_PERSTOUT2 |
+	       REG_PCI_CONTROL_PERSTOUT;
+	val = readl(np_base + REG_PCI_CONTROL);
+	writel(val & ~mask, np_base + REG_PCI_CONTROL);
+	usleep_range(1000, 2000);
+}
+
+static int en7581_clk_hw_init(struct platform_device *pdev,
+			      void __iomem *base,
+			      void __iomem *np_base)
+{
+	void __iomem *pb_base;
+	u32 val;
+
+	pb_base = devm_platform_ioremap_resource(pdev, 2);
+	if (IS_ERR(pb_base))
+		return PTR_ERR(pb_base);
+
+	val = readl(np_base + REG_NP_SCU_SSTR);
+	val &= ~(REG_PCIE_XSI0_SEL_MASK | REG_PCIE_XSI1_SEL_MASK);
+	writel(val, np_base + REG_NP_SCU_SSTR);
+	val = readl(np_base + REG_NP_SCU_PCIC);
+	writel(val | 3, np_base + REG_NP_SCU_PCIC);
+
+	writel(0x20000000, pb_base + REG_PCIE0_MEM);
+	writel(0xfc000000, pb_base + REG_PCIE0_MEM_MASK);
+	writel(0x24000000, pb_base + REG_PCIE1_MEM);
+	writel(0xfc000000, pb_base + REG_PCIE1_MEM_MASK);
+	writel(0x28000000, pb_base + REG_PCIE2_MEM);
+	writel(0xfc000000, pb_base + REG_PCIE2_MEM_MASK);
+
+	val = readl(base + REG_PCIE_RESET_OPEN_DRAIN);
+	writel(val | REG_PCIE_RESET_OPEN_DRAIN_MASK,
+	       base + REG_PCIE_RESET_OPEN_DRAIN);
+
+	return 0;
+}
+
 static void en7523_register_clocks(struct device *dev, struct clk_hw_onecell_data *clk_data,
 				   void __iomem *base, void __iomem *np_base)
 {
@@ -304,6 +426,7 @@ static void en7523_register_clocks(struct device *dev, struct clk_hw_onecell_dat
 static int en7523_clk_probe(struct platform_device *pdev)
 {
 	struct device_node *node = pdev->dev.of_node;
+	const struct en_clk_soc_data *soc_data;
 	struct clk_hw_onecell_data *clk_data;
 	void __iomem *base, *np_base;
 	int r;
@@ -316,6 +439,13 @@ static int en7523_clk_probe(struct platform_device *pdev)
 	if (IS_ERR(np_base))
 		return PTR_ERR(np_base);
 
+	soc_data = device_get_match_data(&pdev->dev);
+	if (soc_data->hw_init) {
+		r = soc_data->hw_init(pdev, base, np_base);
+		if (r)
+			return r;
+	}
+
 	clk_data = devm_kzalloc(&pdev->dev,
 				struct_size(clk_data, hws, EN7523_NUM_CLOCKS),
 				GFP_KERNEL);
@@ -333,6 +463,31 @@ static int en7523_clk_probe(struct platform_device *pdev)
 	return r;
 }
 
+static const struct en_clk_soc_data en7523_data = {
+	.pcie_ops = {
+		.is_enabled = en7523_pci_is_enabled,
+		.prepare = en7523_pci_prepare,
+		.unprepare = en7523_pci_unprepare,
+	},
+};
+
+static const struct en_clk_soc_data en7581_data = {
+	.pcie_ops = {
+		.is_enabled = en7581_pci_is_enabled,
+		.prepare = en7581_pci_prepare,
+		.enable = en7581_pci_enable,
+		.unprepare = en7581_pci_unprepare,
+		.disable = en7581_pci_disable,
+	},
+	.hw_init = en7581_clk_hw_init,
+};
+
+static const struct of_device_id of_match_clk_en7523[] = {
+	{ .compatible = "airoha,en7523-scu", .data = &en7523_data },
+	{ .compatible = "airoha,en7581-scu", .data = &en7581_data },
+	{ /* sentinel */ }
+};
+
 static struct platform_driver clk_en7523_drv = {
 	.probe = en7523_clk_probe,
 	.driver = {