Merge tag 'samsung-clk-6.10-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into clk-samsung

Pull Samsung clk driver updates from Krzysztof Kozlowski:

 - Allow choice of manual or firmware-driven control over PLLs, needed
   to fully implement CPU clock controllers on Exynos850
 - Correct PLL clock IDs on ExynosAutov9
 - Propagate certain clock rates to allow setting proper SPI clock
   rates on Google GS101
 - Add HSI0 and HSI2 clock controllers for Google GS101
 - Mark certain Google GS101 clocks critical
 - Convert old S3C64xx clock controller bindings to DT schema

* tag 'samsung-clk-6.10-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  clk: samsung: gs101: drop unused HSI2 clock parent data
  clk: samsung: gs101: mark some apm UASC and XIU clocks critical
  clk: samsung: gs101: add support for cmu_hsi2
  clk: samsung: gs101: add support for cmu_hsi0
  dt-bindings: clock: google,gs101-clock: add HSI2 clock management unit
  dt-bindings: clock: google,gs101-clock: add HSI0 clock management unit
  clk: samsung: gs101: propagate PERIC1 USI SPI clock rate
  clk: samsung: gs101: propagate PERIC0 USI SPI clock rate
  clk: samsung: exynosautov9: fix wrong pll clock id value
  dt-bindings: clock: samsung,s3c6400-clock: convert to DT Schema
  clk: samsung: exynos850: Add CMU_CPUCL0 and CMU_CPUCL1
  clk: samsung: Implement manual PLL control for ARM64 SoCs

Author: bebarino

Documentation/devicetree/bindings/clock/google,gs101-clock.yaml

@@ -30,16 +30,18 @@ properties:
       - google,gs101-cmu-top
       - google,gs101-cmu-apm
       - google,gs101-cmu-misc
+      - google,gs101-cmu-hsi0
+      - google,gs101-cmu-hsi2
       - google,gs101-cmu-peric0
       - google,gs101-cmu-peric1
 
   clocks:
     minItems: 1
-    maxItems: 3
+    maxItems: 5
 
   clock-names:
     minItems: 1
-    maxItems: 3
+    maxItems: 5
 
   "#clock-cells":
     const: 1
@@ -72,6 +74,55 @@ allOf:
           items:
             - const: oscclk
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: google,gs101-cmu-hsi0
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (24.576 MHz)
+            - description: HSI0 bus clock (from CMU_TOP)
+            - description: DPGTC (from CMU_TOP)
+            - description: USB DRD controller clock (from CMU_TOP)
+            - description: USB Display Port debug clock (from CMU_TOP)
+
+        clock-names:
+          items:
+            - const: oscclk
+            - const: bus
+            - const: dpgtc
+            - const: usb31drd
+            - const: usbdpdbg
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - google,gs101-cmu-hsi2
+
+    then:
+      properties:
+        clocks:
+          items:
+            - description: External reference clock (24.576 MHz)
+            - description: High Speed Interface bus clock (from CMU_TOP)
+            - description: High Speed Interface pcie clock (from CMU_TOP)
+            - description: High Speed Interface ufs clock (from CMU_TOP)
+            - description: High Speed Interface mmc clock (from CMU_TOP)
+
+        clock-names:
+          items:
+            - const: oscclk
+            - const: bus
+            - const: pcie
+            - const: ufs
+            - const: mmc
+
   - if:
       properties:
         compatible:

Documentation/devicetree/bindings/clock/samsung,s3c6400-clock.yaml

@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/samsung,s3c6400-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung S3C6400 SoC clock controller
+
+maintainers:
+  - Krzysztof Kozlowski <[email protected]>
+
+description: |
+  There are several clocks that are generated outside the SoC. It is expected
+  that they are defined using standard clock bindings with following
+  clock-output-names and/or provided as clock inputs to this clock controller:
+   - "fin_pll" - PLL input clock (xtal/extclk) - required,
+   - "xusbxti" - USB xtal - required,
+   - "iiscdclk0" - I2S0 codec clock - optional,
+   - "iiscdclk1" - I2S1 codec clock - optional,
+   - "iiscdclk2" - I2S2 codec clock - optional,
+   - "pcmcdclk0" - PCM0 codec clock - optional,
+   - "pcmcdclk1" - PCM1 codec clock - optional, only S3C6410.
+
+  All available clocks are defined as preprocessor macros in
+  include/dt-bindings/clock/samsung,s3c64xx-clock.h header.
+
+properties:
+  compatible:
+    enum:
+      - samsung,s3c6400-clock
+      - samsung,s3c6410-clock
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  "#clock-cells":
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    clock-controller@7e00f000 {
+        compatible = "samsung,s3c6410-clock";
+        reg = <0x7e00f000 0x1000>;
+        #clock-cells = <1>;
+        clocks = <&fin_pll>;
+    };

Documentation/devicetree/bindings/clock/samsung,s3c64xx-clock.txt

@@ -17,10 +17,17 @@
 
 #include "clk-exynos-arm64.h"
 
+/* PLL register bits */
+#define PLL_CON1_MANUAL		BIT(1)
+
 /* Gate register bits */
 #define GATE_MANUAL		BIT(20)
 #define GATE_ENABLE_HWACG	BIT(28)
 
+/* PLL_CONx_PLL register offsets range */
+#define PLL_CON_OFF_START	0x100
+#define PLL_CON_OFF_END		0x600
+
 /* Gate register offsets range */
 #define GATE_OFF_START		0x2000
 #define GATE_OFF_END		0x2fff
@@ -38,17 +45,36 @@ struct exynos_arm64_cmu_data {
 	struct samsung_clk_provider *ctx;
 };
 
+/* Check if the register offset is a GATE register */
+static bool is_gate_reg(unsigned long off)
+{
+	return off >= GATE_OFF_START && off <= GATE_OFF_END;
+}
+
+/* Check if the register offset is a PLL_CONx register */
+static bool is_pll_conx_reg(unsigned long off)
+{
+	return off >= PLL_CON_OFF_START && off <= PLL_CON_OFF_END;
+}
+
+/* Check if the register offset is a PLL_CON1 register */
+static bool is_pll_con1_reg(unsigned long off)
+{
+	return is_pll_conx_reg(off) && (off & 0xf) == 0x4 && !(off & 0x10);
+}
+
 /**
  * exynos_arm64_init_clocks - Set clocks initial configuration
- * @np:			CMU device tree node with "reg" property (CMU addr)
- * @reg_offs:		Register offsets array for clocks to init
- * @reg_offs_len:	Number of register offsets in reg_offs array
+ * @np:		CMU device tree node with "reg" property (CMU addr)
+ * @cmu:	CMU data
  *
- * Set manual control mode for all gate clocks.
+ * Set manual control mode for all gate and PLL clocks.
  */
 static void __init exynos_arm64_init_clocks(struct device_node *np,
-		const unsigned long *reg_offs, size_t reg_offs_len)
+					    const struct samsung_cmu_info *cmu)
 {
+	const unsigned long *reg_offs = cmu->clk_regs;
+	size_t reg_offs_len = cmu->nr_clk_regs;
 	void __iomem *reg_base;
 	size_t i;
 
@@ -60,14 +86,14 @@ static void __init exynos_arm64_init_clocks(struct device_node *np,
 		void __iomem *reg = reg_base + reg_offs[i];
 		u32 val;
 
-		/* Modify only gate clock registers */
-		if (reg_offs[i] < GATE_OFF_START || reg_offs[i] > GATE_OFF_END)
-			continue;
-
-		val = readl(reg);
-		val |= GATE_MANUAL;
-		val &= ~GATE_ENABLE_HWACG;
-		writel(val, reg);
+		if (cmu->manual_plls && is_pll_con1_reg(reg_offs[i])) {
+			writel(PLL_CON1_MANUAL, reg);
+		} else if (is_gate_reg(reg_offs[i])) {
+			val = readl(reg);
+			val |= GATE_MANUAL;
+			val &= ~GATE_ENABLE_HWACG;
+			writel(val, reg);
+		}
 	}
 
 	iounmap(reg_base);
@@ -177,7 +203,7 @@ void __init exynos_arm64_register_cmu(struct device *dev,
 		pr_err("%s: could not enable bus clock %s; err = %d\n",
 		       __func__, cmu->clk_name, err);
 
-	exynos_arm64_init_clocks(np, cmu->clk_regs, cmu->nr_clk_regs);
+	exynos_arm64_init_clocks(np, cmu);
 	samsung_cmu_register_one(np, cmu);
 }
 
@@ -224,7 +250,7 @@ int __init exynos_arm64_register_cmu_pm(struct platform_device *pdev,
 		       __func__, cmu->clk_name, ret);
 
 	if (set_manual)
-		exynos_arm64_init_clocks(np, cmu->clk_regs, cmu->nr_clk_regs);
+		exynos_arm64_init_clocks(np, cmu);
 
 	reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(reg_base))