diff --git a/Documentation/devicetree/bindings/eeprom/at24.yaml b/Documentation/devicetree/bindings/eeprom/at24.yaml
index 0ac6864..50af7cc 100644
--- a/Documentation/devicetree/bindings/eeprom/at24.yaml
+++ b/Documentation/devicetree/bindings/eeprom/at24.yaml
@@ -143,6 +143,7 @@ properties:
           - const: atmel,24c128
       - items:
           - enum:
+              - giantec,gt24c256c
               - puya,p24c256c
           - const: atmel,24c256
       - items:
diff --git a/Documentation/devicetree/bindings/i2c/apple,i2c.yaml b/Documentation/devicetree/bindings/i2c/apple,i2c.yaml
index fed3e1b..500a965 100644
--- a/Documentation/devicetree/bindings/i2c/apple,i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/apple,i2c.yaml
@@ -20,17 +20,22 @@ allOf:
 
 properties:
   compatible:
-    items:
-      - enum:
-          - apple,s5l8960x-i2c
-          - apple,t7000-i2c
-          - apple,s8000-i2c
-          - apple,t8010-i2c
-          - apple,t8015-i2c
-          - apple,t8103-i2c
-          - apple,t8112-i2c
-          - apple,t6000-i2c
-      - const: apple,i2c
+    oneOf:
+      - items:
+          - const: apple,t6020-i2c
+          - const: apple,t8103-i2c
+      - items:
+          - enum:
+              # Do not add additional SoC to this list.
+              - apple,s5l8960x-i2c
+              - apple,t7000-i2c
+              - apple,s8000-i2c
+              - apple,t8010-i2c
+              - apple,t8015-i2c
+              - apple,t8103-i2c
+              - apple,t8112-i2c
+              - apple,t6000-i2c
+          - const: apple,i2c
 
   reg:
     maxItems: 1
diff --git a/Documentation/devicetree/bindings/i2c/i2c-exynos5.yaml b/Documentation/devicetree/bindings/i2c/i2c-exynos5.yaml
index 7ae8c7b..3226923 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-exynos5.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-exynos5.yaml
@@ -35,9 +35,14 @@ properties:
           - const: samsung,exynos7-hsi2c
       - items:
           - enum:
+              - samsung,exynos8890-hsi2c
+          - const: samsung,exynos8895-hsi2c
+      - items:
+          - enum:
               - google,gs101-hsi2c
               - samsung,exynos2200-hsi2c
               - samsung,exynos850-hsi2c
+              - samsung,exynos990-hsi2c
           - const: samsung,exynosautov9-hsi2c
       - const: samsung,exynos5-hsi2c    # Exynos5250 and Exynos5420
         deprecated: true
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml b/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml
index 23fe8ff..3562ce0 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml
@@ -52,6 +52,12 @@ properties:
           - const: mediatek,mt8173-i2c
       - items:
           - enum:
+              - mediatek,mt6878-i2c
+              - mediatek,mt6991-i2c
+              - mediatek,mt8196-i2c
+          - const: mediatek,mt8188-i2c
+      - items:
+          - enum:
               - mediatek,mt6893-i2c
               - mediatek,mt8195-i2c
           - const: mediatek,mt8192-i2c
diff --git a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml
index 6b6f676..32c3b69 100644
--- a/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/nvidia,tegra20-i2c.yaml
@@ -80,6 +80,11 @@ properties:
           support for 64 KiB transactions whereas earlier chips supported no
           more than 4 KiB per transactions.
         const: nvidia,tegra194-i2c
+      - description: |
+          Tegra256 has 8 generic I2C controllers. The controllers are similar to
+          the previous generations, but have a different parent clock and hence
+          the timing parameters are configured differently.
+        const: nvidia,tegra256-i2c
 
   reg:
     maxItems: 1
@@ -186,6 +191,7 @@ allOf:
             contains:
               enum:
                 - nvidia,tegra194-i2c
+                - nvidia,tegra256-i2c
     then:
       required:
         - resets
diff --git a/Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml b/Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml
index 7314447..7456783 100644
--- a/Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml
+++ b/Documentation/devicetree/bindings/i2c/qcom,i2c-cci.yaml
@@ -25,6 +25,8 @@ properties:
 
       - items:
           - enum:
+              - qcom,qcm2290-cci
+              - qcom,sa8775p-cci
               - qcom,sc7280-cci
               - qcom,sc8280xp-cci
               - qcom,sdm670-cci
@@ -44,11 +46,11 @@ properties:
     const: 0
 
   clocks:
-    minItems: 3
+    minItems: 2
     maxItems: 6
 
   clock-names:
-    minItems: 3
+    minItems: 2
     maxItems: 6
 
   interrupts:
@@ -113,6 +115,7 @@ allOf:
     then:
       properties:
         clocks:
+          minItems: 3
           maxItems: 3
         clock-names:
           items:
@@ -123,6 +126,22 @@ allOf:
   - if:
       properties:
         compatible:
+          contains:
+            enum:
+              - qcom,qcm2290-cci
+    then:
+      properties:
+        clocks:
+          minItems: 2
+          maxItems: 2
+        clock-names:
+          items:
+            - const: ahb
+            - const: cci
+
+  - if:
+      properties:
+        compatible:
           oneOf:
             - contains:
                 enum:
@@ -223,6 +242,7 @@ allOf:
         compatible:
           contains:
             enum:
+              - qcom,sa8775p-cci
               - qcom,sm8550-cci
               - qcom,sm8650-cci
               - qcom,x1e80100-cci
diff --git a/Documentation/devicetree/bindings/i2c/samsung,s3c2410-i2c.yaml b/Documentation/devicetree/bindings/i2c/samsung,s3c2410-i2c.yaml
index 6ba7d79..a2ddc68 100644
--- a/Documentation/devicetree/bindings/i2c/samsung,s3c2410-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/samsung,s3c2410-i2c.yaml
@@ -13,7 +13,6 @@ properties:
   compatible:
     oneOf:
       - enum:
-          - samsung,s3c2410-i2c
           - samsung,s3c2440-i2c
             # For s3c2440-like I2C used inside HDMIPHY block found on several SoCs:
           - samsung,s3c2440-hdmiphy-i2c
@@ -93,7 +92,6 @@ allOf:
         compatible:
           contains:
             enum:
-              - samsung,s3c2410-i2c
               - samsung,s3c2440-i2c
               - samsung,s3c2440-hdmiphy-i2c
     then:
diff --git a/Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml b/Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml
index 226c600..b7220ff 100644
--- a/Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml
@@ -56,7 +56,7 @@ examples:
         reg = <0xd4010800 0x38>;
         interrupt-parent = <&plic>;
         interrupts = <36>;
-        clocks =<&ccu 32>, <&ccu 84>;
+        clocks = <&ccu 32>, <&ccu 84>;
         clock-names = "func", "bus";
         clock-frequency = <100000>;
     };
diff --git a/Documentation/i2c/busses/i2c-i801.rst b/Documentation/i2c/busses/i2c-i801.rst
index 47e8ac5..36c563a 100644
--- a/Documentation/i2c/busses/i2c-i801.rst
+++ b/Documentation/i2c/busses/i2c-i801.rst
@@ -50,6 +50,7 @@ Supported adapters:
   * Intel Birch Stream (SOC)
   * Intel Arrow Lake (SOC)
   * Intel Panther Lake (SOC)
+  * Intel Wildcat Lake (SOC)
 
    Datasheets: Publicly available at the Intel website
 
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 63a2b5a..e0c2c2a 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -165,6 +165,7 @@ config I2C_I801
 	    Birch Stream (SOC)
 	    Arrow Lake (SOC)
 	    Panther Lake (SOC)
+	    Wildcat Lake (SOC)
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-i801.
diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c
index cbd88ff..c7a72c2 100644
--- a/drivers/i2c/busses/i2c-designware-master.c
+++ b/drivers/i2c/busses/i2c-designware-master.c
@@ -1068,11 +1068,10 @@ int i2c_dw_probe_master(struct dw_i2c_dev *dev)
 	if (!(dev->flags & ACCESS_POLLING)) {
 		ret = devm_request_irq(dev->dev, dev->irq, i2c_dw_isr,
 				       irq_flags, dev_name(dev->dev), dev);
-		if (ret) {
-			dev_err(dev->dev, "failure requesting irq %i: %d\n",
-				dev->irq, ret);
-			return ret;
-		}
+		if (ret)
+			return dev_err_probe(dev->dev, ret,
+					     "failure requesting irq %i: %d\n",
+					     dev->irq, ret);
 	}
 
 	ret = i2c_dw_init_recovery_info(dev);
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index a35e4c6..34d8815 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -238,7 +238,7 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
 
 	dev->rst = devm_reset_control_get_optional_exclusive(device, NULL);
 	if (IS_ERR(dev->rst))
-		return PTR_ERR(dev->rst);
+		return dev_err_probe(device, PTR_ERR(dev->rst), "failed to acquire reset\n");
 
 	reset_control_deassert(dev->rst);
 
@@ -247,21 +247,23 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
 		goto exit_reset;
 
 	ret = i2c_dw_probe_lock_support(dev);
-	if (ret)
+	if (ret) {
+		ret = dev_err_probe(device, ret, "failed to probe lock support\n");
 		goto exit_reset;
+	}
 
 	i2c_dw_configure(dev);
 
 	/* Optional interface clock */
 	dev->pclk = devm_clk_get_optional(device, "pclk");
 	if (IS_ERR(dev->pclk)) {
-		ret = PTR_ERR(dev->pclk);
+		ret = dev_err_probe(device, PTR_ERR(dev->pclk), "failed to acquire pclk\n");
 		goto exit_reset;
 	}
 
 	dev->clk = devm_clk_get_optional(device, NULL);
 	if (IS_ERR(dev->clk)) {
-		ret = PTR_ERR(dev->clk);
+		ret = dev_err_probe(device, PTR_ERR(dev->clk), "failed to acquire clock\n");
 		goto exit_reset;
 	}
 
@@ -314,6 +316,7 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
 
 exit_probe:
 	dw_i2c_plat_pm_cleanup(dev);
+	i2c_dw_prepare_clk(dev, false);
 exit_reset:
 	reset_control_assert(dev->rst);
 	return ret;
@@ -331,9 +334,11 @@ static void dw_i2c_plat_remove(struct platform_device *pdev)
 	i2c_dw_disable(dev);
 
 	pm_runtime_dont_use_autosuspend(device);
-	pm_runtime_put_sync(device);
+	pm_runtime_put_noidle(device);
 	dw_i2c_plat_pm_cleanup(dev);
 
+	i2c_dw_prepare_clk(dev, false);
+
 	i2c_dw_remove_lock_support(dev);
 
 	reset_control_assert(dev->rst);
diff --git a/drivers/i2c/busses/i2c-designware-slave.c b/drivers/i2c/busses/i2c-designware-slave.c
index b936a24..6eb16b7 100644
--- a/drivers/i2c/busses/i2c-designware-slave.c
+++ b/drivers/i2c/busses/i2c-designware-slave.c
@@ -266,11 +266,10 @@ int i2c_dw_probe_slave(struct dw_i2c_dev *dev)
 
 	ret = devm_request_irq(dev->dev, dev->irq, i2c_dw_isr_slave,
 			       IRQF_SHARED, dev_name(dev->dev), dev);
-	if (ret) {
-		dev_err(dev->dev, "failure requesting IRQ %i: %d\n",
-			dev->irq, ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(dev->dev, ret,
+				     "failure requesting IRQ %i: %d\n",
+				     dev->irq, ret);
 
 	ret = i2c_add_numbered_adapter(adap);
 	if (ret)
diff --git a/drivers/i2c/busses/i2c-hix5hd2.c b/drivers/i2c/busses/i2c-hix5hd2.c
index 370f329..5358f5d 100644
--- a/drivers/i2c/busses/i2c-hix5hd2.c
+++ b/drivers/i2c/busses/i2c-hix5hd2.c
@@ -339,7 +339,7 @@ static int hix5hd2_i2c_xfer_msg(struct hix5hd2_i2c_priv *priv,
 	ret = priv->state;
 
 	/*
-	 * If this is the last message to be transfered (stop == 1)
+	 * If this is the last message to be transferred (stop == 1)
 	 * Then check if the bus can be brought back to idle.
 	 */
 	if (priv->state == HIX5I2C_STAT_RW_SUCCESS && stop)
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index e94ac74..cba992f 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -83,6 +83,7 @@
  * Arrow Lake-H (SOC)		0x7722	32	hard	yes	yes	yes
  * Panther Lake-H (SOC)		0xe322	32	hard	yes	yes	yes
  * Panther Lake-P (SOC)		0xe422	32	hard	yes	yes	yes
+ * Wildcat Lake-U (SOC)		0x4d22	32	hard	yes	yes	yes
  *
  * Features supported by this driver:
  * Software PEC				no
@@ -236,6 +237,7 @@
 #define PCI_DEVICE_ID_INTEL_5_3400_SERIES_SMBUS		0x3b30
 #define PCI_DEVICE_ID_INTEL_TIGERLAKE_H_SMBUS		0x43a3
 #define PCI_DEVICE_ID_INTEL_ELKHART_LAKE_SMBUS		0x4b23
+#define PCI_DEVICE_ID_INTEL_WILDCAT_LAKE_U_SMBUS	0x4d22
 #define PCI_DEVICE_ID_INTEL_JASPER_LAKE_SMBUS		0x4da3
 #define PCI_DEVICE_ID_INTEL_ALDER_LAKE_P_SMBUS		0x51a3
 #define PCI_DEVICE_ID_INTEL_ALDER_LAKE_M_SMBUS		0x54a3
@@ -1056,6 +1058,7 @@ static const struct pci_device_id i801_ids[] = {
 	{ PCI_DEVICE_DATA(INTEL, ARROW_LAKE_H_SMBUS,		FEATURES_ICH5 | FEATURE_TCO_CNL) },
 	{ PCI_DEVICE_DATA(INTEL, PANTHER_LAKE_H_SMBUS,		FEATURES_ICH5 | FEATURE_TCO_CNL) },
 	{ PCI_DEVICE_DATA(INTEL, PANTHER_LAKE_P_SMBUS,		FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, WILDCAT_LAKE_U_SMBUS,		FEATURES_ICH5 | FEATURE_TCO_CNL) },
 	{ 0, }
 };
 
diff --git a/drivers/i2c/busses/i2c-k1.c b/drivers/i2c/busses/i2c-k1.c
index b68a21f..6b91877 100644
--- a/drivers/i2c/busses/i2c-k1.c
+++ b/drivers/i2c/busses/i2c-k1.c
@@ -3,6 +3,7 @@
  * Copyright (C) 2024-2025 Troy Mitchell <troymitchell988@gmail.com>
  */
 
+#include <linux/bitfield.h>
  #include <linux/clk.h>
  #include <linux/i2c.h>
  #include <linux/iopoll.h>
@@ -14,6 +15,7 @@
 #define SPACEMIT_ICR		 0x0		/* Control register */
 #define SPACEMIT_ISR		 0x4		/* Status register */
 #define SPACEMIT_IDBR		 0xc		/* Data buffer register */
+#define SPACEMIT_IRCR		 0x18		/* Reset cycle counter */
 #define SPACEMIT_IBMR		 0x1c		/* Bus monitor register */
 
 /* SPACEMIT_ICR register fields */
@@ -25,7 +27,8 @@
 #define SPACEMIT_CR_MODE_FAST    BIT(8)		/* bus mode (master operation) */
 /* Bit 9 is reserved */
 #define SPACEMIT_CR_UR           BIT(10)	/* unit reset */
-/* Bits 11-12 are reserved */
+#define SPACEMIT_CR_RSTREQ	 BIT(11)	/* i2c bus reset request */
+/* Bit 12 is reserved */
 #define SPACEMIT_CR_SCLE         BIT(13)	/* master clock enable */
 #define SPACEMIT_CR_IUE          BIT(14)	/* unit enable */
 /* Bits 15-17 are reserved */
@@ -76,6 +79,10 @@
 					SPACEMIT_SR_GCAD | SPACEMIT_SR_IRF | SPACEMIT_SR_ITE | \
 					SPACEMIT_SR_ALD)
 
+#define SPACEMIT_RCR_SDA_GLITCH_NOFIX		BIT(7)		/* bypass the SDA glitch fix */
+/* the cycles of SCL during bus reset */
+#define SPACEMIT_RCR_FIELD_RST_CYC		GENMASK(3, 0)
+
 /* SPACEMIT_IBMR register fields */
 #define SPACEMIT_BMR_SDA         BIT(0)		/* SDA line level */
 #define SPACEMIT_BMR_SCL         BIT(1)		/* SCL line level */
@@ -88,6 +95,8 @@
 
 #define SPACEMIT_SR_ERR	(SPACEMIT_SR_BED | SPACEMIT_SR_RXOV | SPACEMIT_SR_ALD)
 
+#define SPACEMIT_BUS_RESET_CLK_CNT_MAX		9
+
 enum spacemit_i2c_state {
 	SPACEMIT_STATE_IDLE,
 	SPACEMIT_STATE_START,
@@ -160,6 +169,7 @@ static int spacemit_i2c_handle_err(struct spacemit_i2c_dev *i2c)
 static void spacemit_i2c_conditionally_reset_bus(struct spacemit_i2c_dev *i2c)
 {
 	u32 status;
+	u8 clk_cnt;
 
 	/* if bus is locked, reset unit. 0: locked */
 	status = readl(i2c->base + SPACEMIT_IBMR);
@@ -169,9 +179,21 @@ static void spacemit_i2c_conditionally_reset_bus(struct spacemit_i2c_dev *i2c)
 	spacemit_i2c_reset(i2c);
 	usleep_range(10, 20);
 
-	/* check scl status again */
+	for (clk_cnt = 0; clk_cnt < SPACEMIT_BUS_RESET_CLK_CNT_MAX; clk_cnt++) {
+		status = readl(i2c->base + SPACEMIT_IBMR);
+		if (status & SPACEMIT_BMR_SDA)
+			return;
+
+		/* There's nothing left to save here, we are about to exit */
+		writel(FIELD_PREP(SPACEMIT_RCR_FIELD_RST_CYC, 1),
+		       i2c->base + SPACEMIT_IRCR);
+		writel(SPACEMIT_CR_RSTREQ, i2c->base + SPACEMIT_ICR);
+		usleep_range(20, 30);
+	}
+
+	/* check sda again here */
 	status = readl(i2c->base + SPACEMIT_IBMR);
-	if (!(status & SPACEMIT_BMR_SCL))
+	if (!(status & SPACEMIT_BMR_SDA))
 		dev_warn_ratelimited(i2c->dev, "unit reset failed\n");
 }
 
@@ -237,6 +259,14 @@ static void spacemit_i2c_init(struct spacemit_i2c_dev *i2c)
 	val |= SPACEMIT_CR_MSDE | SPACEMIT_CR_MSDIE;
 
 	writel(val, i2c->base + SPACEMIT_ICR);
+
+	/*
+	 * The glitch fix in the K1 I2C controller introduces a delay
+	 * on restart signals, so we disable the fix here.
+	 */
+	val = readl(i2c->base + SPACEMIT_IRCR);
+	val |= SPACEMIT_RCR_SDA_GLITCH_NOFIX;
+	writel(val, i2c->base + SPACEMIT_IRCR);
 }
 
 static inline void
@@ -267,19 +297,6 @@ static void spacemit_i2c_start(struct spacemit_i2c_dev *i2c)
 	writel(val, i2c->base + SPACEMIT_ICR);
 }
 
-static void spacemit_i2c_stop(struct spacemit_i2c_dev *i2c)
-{
-	u32 val;
-
-	val = readl(i2c->base + SPACEMIT_ICR);
-	val |= SPACEMIT_CR_STOP | SPACEMIT_CR_ALDIE | SPACEMIT_CR_TB;
-
-	if (i2c->read)
-		val |= SPACEMIT_CR_ACKNAK;
-
-	writel(val, i2c->base + SPACEMIT_ICR);
-}
-
 static int spacemit_i2c_xfer_msg(struct spacemit_i2c_dev *i2c)
 {
 	unsigned long time_left;
@@ -412,7 +429,6 @@ static irqreturn_t spacemit_i2c_irq_handler(int irq, void *devid)
 
 	val = readl(i2c->base + SPACEMIT_ICR);
 	val &= ~(SPACEMIT_CR_TB | SPACEMIT_CR_ACKNAK | SPACEMIT_CR_STOP | SPACEMIT_CR_START);
-	writel(val, i2c->base + SPACEMIT_ICR);
 
 	switch (i2c->state) {
 	case SPACEMIT_STATE_START:
@@ -429,14 +445,16 @@ static irqreturn_t spacemit_i2c_irq_handler(int irq, void *devid)
 	}
 
 	if (i2c->state != SPACEMIT_STATE_IDLE) {
+		val |= SPACEMIT_CR_TB | SPACEMIT_CR_ALDIE;
+
 		if (spacemit_i2c_is_last_msg(i2c)) {
 			/* trigger next byte with stop */
-			spacemit_i2c_stop(i2c);
-		} else {
-			/* trigger next byte */
-			val |= SPACEMIT_CR_ALDIE | SPACEMIT_CR_TB;
-			writel(val, i2c->base + SPACEMIT_ICR);
+			val |= SPACEMIT_CR_STOP;
+
+			if (i2c->read)
+				val |= SPACEMIT_CR_ACKNAK;
 		}
+		writel(val, i2c->base + SPACEMIT_ICR);
 	}
 
 err_out:
@@ -476,12 +494,13 @@ static int spacemit_i2c_xfer(struct i2c_adapter *adapt, struct i2c_msg *msgs, in
 	spacemit_i2c_enable(i2c);
 
 	ret = spacemit_i2c_wait_bus_idle(i2c);
-	if (!ret)
+	if (!ret) {
 		ret = spacemit_i2c_xfer_msg(i2c);
-	else if (ret < 0)
-		dev_dbg(i2c->dev, "i2c transfer error: %d\n", ret);
-	else
+		if (ret < 0)
+			dev_dbg(i2c->dev, "i2c transfer error: %d\n", ret);
+	} else {
 		spacemit_i2c_check_bus_release(i2c);
+	}
 
 	spacemit_i2c_disable(i2c);
 
diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
index ab456c3..dee4070 100644
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c
@@ -1243,6 +1243,7 @@ static int mtk_i2c_transfer(struct i2c_adapter *adap,
 {
 	int ret;
 	int left_num = num;
+	bool write_then_read_en = false;
 	struct mtk_i2c *i2c = i2c_get_adapdata(adap);
 
 	ret = clk_bulk_enable(I2C_MT65XX_CLK_MAX, i2c->clocks);
@@ -1256,6 +1257,7 @@ static int mtk_i2c_transfer(struct i2c_adapter *adap,
 		if (!(msgs[0].flags & I2C_M_RD) && (msgs[1].flags & I2C_M_RD) &&
 		    msgs[0].addr == msgs[1].addr) {
 			i2c->auto_restart = 0;
+			write_then_read_en = true;
 		}
 	}
 
@@ -1280,12 +1282,10 @@ static int mtk_i2c_transfer(struct i2c_adapter *adap,
 		else
 			i2c->op = I2C_MASTER_WR;
 
-		if (!i2c->auto_restart) {
-			if (num > 1) {
-				/* combined two messages into one transaction */
-				i2c->op = I2C_MASTER_WRRD;
-				left_num--;
-			}
+		if (write_then_read_en) {
+			/* combined two messages into one transaction */
+			i2c->op = I2C_MASTER_WRRD;
+			left_num--;
 		}
 
 		/* always use DMA mode. */
@@ -1293,7 +1293,10 @@ static int mtk_i2c_transfer(struct i2c_adapter *adap,
 		if (ret < 0)
 			goto err_exit;
 
-		msgs++;
+		if (i2c->op == I2C_MASTER_WRRD)
+			msgs += 2;
+		else
+			msgs++;
 	}
 	/* the return value is number of executed messages */
 	ret = num;
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index f4fa470..8138f5e 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -138,7 +138,6 @@ static void i2c_s3c_irq_nextbyte(struct s3c24xx_i2c *i2c, unsigned long iicstat)
 
 #ifdef CONFIG_OF
 static const struct of_device_id s3c24xx_i2c_match[] = {
-	{ .compatible = "samsung,s3c2410-i2c", .data = (void *)0 },
 	{ .compatible = "samsung,s3c2440-i2c", .data = (void *)QUIRK_S3C2440 },
 	{ .compatible = "samsung,s3c2440-hdmiphy-i2c",
 	  .data = (void *)(QUIRK_S3C2440 | QUIRK_HDMIPHY | QUIRK_NO_GPIO) },
diff --git a/drivers/i2c/busses/i2c-sprd.c b/drivers/i2c/busses/i2c-sprd.c
index 56b2e5c..26ec34b 100644
--- a/drivers/i2c/busses/i2c-sprd.c
+++ b/drivers/i2c/busses/i2c-sprd.c
@@ -425,7 +425,7 @@ static irqreturn_t sprd_i2c_isr(int irq, void *dev_id)
 	 * If we did not get one ACK from target when writing data, then we
 	 * should finish this transmission since we got some errors.
 	 *
-	 * When writing data, if i2c_tran == 0 which means we have writen
+	 * When writing data, if i2c_tran == 0 which means we have written
 	 * done all data, then we can finish this transmission.
 	 *
 	 * When reading data, if conut < rx fifo full threshold, which
diff --git a/drivers/i2c/busses/i2c-st.c b/drivers/i2c/busses/i2c-st.c
index bf28f8e..97d70e6 100644
--- a/drivers/i2c/busses/i2c-st.c
+++ b/drivers/i2c/busses/i2c-st.c
@@ -152,7 +152,7 @@ struct st_i2c_timings {
 /**
  * struct st_i2c_client - client specific data
  * @addr: 8-bit target addr, including r/w bit
- * @count: number of bytes to be transfered
+ * @count: number of bytes to be transferred
  * @xfered: number of bytes already transferred
  * @buf: data buffer
  * @result: result of the transfer
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 4eb31b9..e533460 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -1649,7 +1649,33 @@ static const struct tegra_i2c_hw_feature tegra194_i2c_hw = {
 	.has_interface_timing_reg = true,
 };
 
+static const struct tegra_i2c_hw_feature tegra256_i2c_hw = {
+	.has_continue_xfer_support = true,
+	.has_per_pkt_xfer_complete_irq = true,
+	.clk_divisor_hs_mode = 7,
+	.clk_divisor_std_mode = 0x7a,
+	.clk_divisor_fast_mode = 0x40,
+	.clk_divisor_fast_plus_mode = 0x19,
+	.has_config_load_reg = true,
+	.has_multi_master_mode = true,
+	.has_slcg_override_reg = true,
+	.has_mst_fifo = true,
+	.has_mst_reset = true,
+	.quirks = &tegra194_i2c_quirks,
+	.supports_bus_clear = true,
+	.has_apb_dma = false,
+	.tlow_std_mode = 0x8,
+	.thigh_std_mode = 0x7,
+	.tlow_fast_fastplus_mode = 0x3,
+	.thigh_fast_fastplus_mode = 0x3,
+	.setup_hold_time_std_mode = 0x08080808,
+	.setup_hold_time_fast_fast_plus_mode = 0x02020202,
+	.setup_hold_time_hs_mode = 0x090909,
+	.has_interface_timing_reg = true,
+};
+
 static const struct of_device_id tegra_i2c_of_match[] = {
+	{ .compatible = "nvidia,tegra256-i2c", .data = &tegra256_i2c_hw, },
 	{ .compatible = "nvidia,tegra194-i2c", .data = &tegra194_i2c_hw, },
 	{ .compatible = "nvidia,tegra186-i2c", .data = &tegra186_i2c_hw, },
 #if IS_ENABLED(CONFIG_ARCH_TEGRA_210_SOC)
diff --git a/drivers/i2c/busses/i2c-viperboard.c b/drivers/i2c/busses/i2c-viperboard.c
index 1bd6028..f596efc 100644
--- a/drivers/i2c/busses/i2c-viperboard.c
+++ b/drivers/i2c/busses/i2c-viperboard.c
@@ -204,7 +204,7 @@ static int vprbrd_i2c_read(struct vprbrd *vb, struct i2c_msg *msg)
 		/* copy the received data */
 		memcpy(msg->buf + start, rmsg, len1);
 
-		/* second read transfer if neccessary */
+		/* second read transfer if necessary */
 		if (len2 > 0) {
 			ret = vprbrd_i2c_receive(vb->usb_dev, rmsg, len2);
 			if (ret < 0)
diff --git a/drivers/i2c/i2c-boardinfo.c b/drivers/i2c/i2c-boardinfo.c
index 4df8ad0..3388003 100644
--- a/drivers/i2c/i2c-boardinfo.c
+++ b/drivers/i2c/i2c-boardinfo.c
@@ -22,7 +22,7 @@ EXPORT_SYMBOL_GPL(__i2c_board_lock);
 LIST_HEAD(__i2c_board_list);
 EXPORT_SYMBOL_GPL(__i2c_board_list);
 
-int __i2c_first_dynamic_bus_num;
+int __i2c_first_dynamic_bus_num __ro_after_init;
 EXPORT_SYMBOL_GPL(__i2c_first_dynamic_bus_num);
 
 
@@ -48,7 +48,7 @@ EXPORT_SYMBOL_GPL(__i2c_first_dynamic_bus_num);
  * The board info passed can safely be __initdata, but be careful of embedded
  * pointers (for platform_data, functions, etc) since that won't be copied.
  */
-int i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsigned len)
+int __init i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsigned len)
 {
 	int status;
 
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index ecca8c0..ae7e9c8 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -573,7 +573,8 @@ static int i2c_device_probe(struct device *dev)
 		goto err_clear_wakeup_irq;
 
 	do_power_on = !i2c_acpi_waive_d0_probe(dev);
-	status = dev_pm_domain_attach(&client->dev, do_power_on ? PD_FLAG_ATTACH_POWER_ON : 0);
+	status = dev_pm_domain_attach(&client->dev, PD_FLAG_DETACH_POWER_OFF |
+				      (do_power_on ? PD_FLAG_ATTACH_POWER_ON : 0));
 	if (status)
 		goto err_clear_wakeup_irq;
 
@@ -581,7 +582,7 @@ static int i2c_device_probe(struct device *dev)
 						    GFP_KERNEL);
 	if (!client->devres_group_id) {
 		status = -ENOMEM;
-		goto err_detach_pm_domain;
+		goto err_clear_wakeup_irq;
 	}
 
 	client->debugfs = debugfs_create_dir(dev_name(&client->dev),
@@ -608,8 +609,6 @@ static int i2c_device_probe(struct device *dev)
 err_release_driver_resources:
 	debugfs_remove_recursive(client->debugfs);
 	devres_release_group(&client->dev, client->devres_group_id);
-err_detach_pm_domain:
-	dev_pm_domain_detach(&client->dev, do_power_on);
 err_clear_wakeup_irq:
 	dev_pm_clear_wake_irq(&client->dev);
 	device_init_wakeup(&client->dev, false);
@@ -636,8 +635,6 @@ static void i2c_device_remove(struct device *dev)
 
 	devres_release_group(&client->dev, client->devres_group_id);
 
-	dev_pm_domain_detach(&client->dev, true);
-
 	dev_pm_clear_wake_irq(&client->dev);
 	device_init_wakeup(&client->dev, false);
 
diff --git a/drivers/i2c/i2c-core-slave.c b/drivers/i2c/i2c-core-slave.c
index 7ee6b99..02ca55c 100644
--- a/drivers/i2c/i2c-core-slave.c
+++ b/drivers/i2c/i2c-core-slave.c
@@ -112,10 +112,9 @@ bool i2c_detect_slave_mode(struct device *dev)
 	struct fwnode_handle *fwnode = dev_fwnode(dev);
 
 	if (is_of_node(fwnode)) {
-		struct fwnode_handle *child __free(fwnode_handle) = NULL;
 		u32 reg;
 
-		fwnode_for_each_child_node(fwnode, child) {
+		fwnode_for_each_child_node_scoped(fwnode, child) {
 			fwnode_property_read_u32(child, "reg", &reg);
 			if (reg & I2C_OWN_SLAVE_ADDRESS)
 				return true;
diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c
index 4d86909..d59644e 100644
--- a/drivers/i2c/i2c-mux.c
+++ b/drivers/i2c/i2c-mux.c
@@ -241,12 +241,9 @@ struct i2c_mux_core *i2c_mux_alloc(struct i2c_adapter *parent,
 
 	muxc->parent = parent;
 	muxc->dev = dev;
-	if (flags & I2C_MUX_LOCKED)
-		muxc->mux_locked = true;
-	if (flags & I2C_MUX_ARBITRATOR)
-		muxc->arbitrator = true;
-	if (flags & I2C_MUX_GATE)
-		muxc->gate = true;
+	muxc->mux_locked = !!(flags & I2C_MUX_LOCKED);
+	muxc->arbitrator = !!(flags & I2C_MUX_ARBITRATOR);
+	muxc->gate = !!(flags & I2C_MUX_GATE);
 	muxc->select = select;
 	muxc->deselect = deselect;
 	muxc->max_adapters = max_adapters;
diff --git a/drivers/i2c/muxes/i2c-mux-pca9541.c b/drivers/i2c/muxes/i2c-mux-pca9541.c
index 8663c8a..3d8002c 100644
--- a/drivers/i2c/muxes/i2c-mux-pca9541.c
+++ b/drivers/i2c/muxes/i2c-mux-pca9541.c
@@ -63,10 +63,6 @@
 #define mybus(x)	(!((x) & MYBUS) || ((x) & MYBUS) == MYBUS)
 #define busoff(x)	(!((x) & BUSON) || ((x) & BUSON) == BUSON)
 
-/* arbitration timeouts, in jiffies */
-#define ARB_TIMEOUT	(HZ / 8)	/* 125 ms until forcing bus ownership */
-#define ARB2_TIMEOUT	(HZ / 4)	/* 250 ms until acquisition failure */
-
 /* arbitration retry delays, in us */
 #define SELECT_DELAY_SHORT	50
 #define SELECT_DELAY_LONG	1000
@@ -229,6 +225,9 @@ static int pca9541_arbitrate(struct i2c_client *client)
 		 */
 		data->select_timeout = SELECT_DELAY_LONG;
 		if (time_is_before_eq_jiffies(data->arb_timeout)) {
+			dev_warn(&client->dev,
+				 "Arbitration timeout on I2C bus, forcing bus ownership\n");
+
 			/* Time is up, take the bus and reset it. */
 			pca9541_reg_write(client,
 					  PCA9541_CONTROL,
@@ -251,10 +250,10 @@ static int pca9541_select_chan(struct i2c_mux_core *muxc, u32 chan)
 	struct pca9541 *data = i2c_mux_priv(muxc);
 	struct i2c_client *client = data->client;
 	int ret;
-	unsigned long timeout = jiffies + ARB2_TIMEOUT;
+	unsigned long timeout = jiffies + (2 * client->adapter->timeout);
 		/* give up after this time */
 
-	data->arb_timeout = jiffies + ARB_TIMEOUT;
+	data->arb_timeout = jiffies + client->adapter->timeout;
 		/* force bus ownership after this time */
 
 	do {
@@ -267,6 +266,7 @@ static int pca9541_select_chan(struct i2c_mux_core *muxc, u32 chan)
 		else
 			msleep(data->select_timeout / 1000);
 	} while (time_is_after_eq_jiffies(timeout));
+	dev_warn(&client->dev, "Failed to acquire I2C bus, timed out\n");
 
 	return -ETIMEDOUT;
 }
diff --git a/drivers/i2c/muxes/i2c-mux-pca954x.c b/drivers/i2c/muxes/i2c-mux-pca954x.c
index b9f370c..75c8d08 100644
--- a/drivers/i2c/muxes/i2c-mux-pca954x.c
+++ b/drivers/i2c/muxes/i2c-mux-pca954x.c
@@ -118,7 +118,6 @@ struct pca954x {
 	raw_spinlock_t lock;
 	struct regulator *supply;
 
-	struct gpio_desc *reset_gpio;
 	struct reset_control *reset_cont;
 };
 
@@ -316,6 +315,25 @@ static u8 pca954x_regval(struct pca954x *data, u8 chan)
 		return 1 << chan;
 }
 
+static void pca954x_reset_assert(struct pca954x *data)
+{
+	if (data->reset_cont)
+		reset_control_assert(data->reset_cont);
+}
+
+static void pca954x_reset_deassert(struct pca954x *data)
+{
+	if (data->reset_cont)
+		reset_control_deassert(data->reset_cont);
+}
+
+static void pca954x_reset_mux(struct pca954x *data)
+{
+	pca954x_reset_assert(data);
+	udelay(1);
+	pca954x_reset_deassert(data);
+}
+
 static int pca954x_select_chan(struct i2c_mux_core *muxc, u32 chan)
 {
 	struct pca954x *data = i2c_mux_priv(muxc);
@@ -329,6 +347,8 @@ static int pca954x_select_chan(struct i2c_mux_core *muxc, u32 chan)
 		ret = pca954x_reg_write(muxc->parent, client, regval);
 		data->last_chan = ret < 0 ? 0 : regval;
 	}
+	if (ret == -ETIMEDOUT && data->reset_cont)
+		pca954x_reset_mux(data);
 
 	return ret;
 }
@@ -338,6 +358,7 @@ static int pca954x_deselect_mux(struct i2c_mux_core *muxc, u32 chan)
 	struct pca954x *data = i2c_mux_priv(muxc);
 	struct i2c_client *client = data->client;
 	s32 idle_state;
+	int ret = 0;
 
 	idle_state = READ_ONCE(data->idle_state);
 	if (idle_state >= 0)
@@ -347,8 +368,10 @@ static int pca954x_deselect_mux(struct i2c_mux_core *muxc, u32 chan)
 	if (idle_state == MUX_IDLE_DISCONNECT) {
 		/* Deselect active channel */
 		data->last_chan = 0;
-		return pca954x_reg_write(muxc->parent, client,
-					 data->last_chan);
+		ret = pca954x_reg_write(muxc->parent, client,
+					data->last_chan);
+		if (ret == -ETIMEDOUT && data->reset_cont)
+			pca954x_reset_mux(data);
 	}
 
 	/* otherwise leave as-is */
@@ -527,29 +550,10 @@ static int pca954x_get_reset(struct device *dev, struct pca954x *data)
 	if (IS_ERR(data->reset_cont))
 		return dev_err_probe(dev, PTR_ERR(data->reset_cont),
 				     "Failed to get reset\n");
-	else if (data->reset_cont)
-		return 0;
-
-	/*
-	 * fallback to legacy reset-gpios
-	 */
-	data->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
-	if (IS_ERR(data->reset_gpio)) {
-		return dev_err_probe(dev, PTR_ERR(data->reset_gpio),
-				     "Failed to get reset gpio");
-	}
 
 	return 0;
 }
 
-static void pca954x_reset_deassert(struct pca954x *data)
-{
-	if (data->reset_cont)
-		reset_control_deassert(data->reset_cont);
-	else
-		gpiod_set_value_cansleep(data->reset_gpio, 0);
-}
-
 /*
  * I2C init/probing/exit functions
  */
@@ -589,7 +593,7 @@ static int pca954x_probe(struct i2c_client *client)
 	if (ret)
 		goto fail_cleanup;
 
-	if (data->reset_cont || data->reset_gpio) {
+	if (data->reset_cont) {
 		udelay(1);
 		pca954x_reset_deassert(data);
 		/* Give the chip some time to recover. */
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 20fd41b..11a1924 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -499,7 +499,7 @@ static inline struct i2c_client *i2c_verify_client(struct device *dev)
  * Modules for add-on boards must use other calls.
  */
 #ifdef CONFIG_I2C_BOARDINFO
-int
+int __init
 i2c_register_board_info(int busnum, struct i2c_board_info const *info,
 			unsigned n);
 #else
diff --git a/include/linux/property.h b/include/linux/property.h
index d1e80b3..50b2658 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -176,6 +176,16 @@ struct fwnode_handle *fwnode_get_next_available_child_node(
 	for (child = fwnode_get_next_available_child_node(fwnode, NULL); child;\
 	     child = fwnode_get_next_available_child_node(fwnode, child))
 
+#define fwnode_for_each_child_node_scoped(fwnode, child)		\
+	for (struct fwnode_handle *child __free(fwnode_handle) =	\
+		fwnode_get_next_child_node(fwnode, NULL);		\
+	     child; child = fwnode_get_next_child_node(fwnode, child))
+
+#define fwnode_for_each_available_child_node_scoped(fwnode, child)	\
+	for (struct fwnode_handle *child __free(fwnode_handle) =	\
+		fwnode_get_next_available_child_node(fwnode, NULL);	\
+	     child; child = fwnode_get_next_available_child_node(fwnode, child))
+
 struct fwnode_handle *device_get_next_child_node(const struct device *dev,
 						 struct fwnode_handle *child);