1 files changed, 24 insertions, 27 deletions

diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 6b00061c3746..bf72ae740fc1 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -36,6 +36,7 @@
 #include <linux/platform_device.h>
 #include <linux/pm.h>
 #include <linux/pm_runtime.h>
+#include <linux/property.h>
 #include <linux/io.h>
 #include <linux/slab.h>
 #include <linux/acpi.h>
@@ -122,6 +123,7 @@ static const struct acpi_device_id dw_i2c_acpi_match[] = {
 	{ "80860F41", 0 },
 	{ "808622C1", 0 },
 	{ "AMD0010", ACCESS_INTR_MASK },
+	{ "APMC0D0F", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, dw_i2c_acpi_match);
@@ -134,10 +136,10 @@ static inline int dw_i2c_acpi_configure(struct platform_device *pdev)
 
 static int dw_i2c_plat_probe(struct platform_device *pdev)
 {
+	struct dw_i2c_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct dw_i2c_dev *dev;
 	struct i2c_adapter *adap;
 	struct resource *mem;
-	struct dw_i2c_platform_data *pdata;
 	int irq, r;
 	u32 clk_freq, ht = 0;
 
@@ -161,33 +163,28 @@ static int dw_i2c_plat_probe(struct platform_device *pdev)
 	/* fast mode by default because of legacy reasons */
 	clk_freq = 400000;
 
-	if (has_acpi_companion(&pdev->dev)) {
-		dw_i2c_acpi_configure(pdev);
-	} else if (pdev->dev.of_node) {
-		of_property_read_u32(pdev->dev.of_node,
-					"i2c-sda-hold-time-ns", &ht);
-
-		of_property_read_u32(pdev->dev.of_node,
-				     "i2c-sda-falling-time-ns",
-				     &dev->sda_falling_time);
-		of_property_read_u32(pdev->dev.of_node,
-				     "i2c-scl-falling-time-ns",
-				     &dev->scl_falling_time);
-
-		of_property_read_u32(pdev->dev.of_node, "clock-frequency",
-				     &clk_freq);
-
-		/* Only standard mode at 100kHz and fast mode at 400kHz
-		 * are supported.
-		 */
-		if (clk_freq != 100000 && clk_freq != 400000) {
-			dev_err(&pdev->dev, "Only 100kHz and 400kHz supported");
-			return -EINVAL;
-		}
+	if (pdata) {
+		clk_freq = pdata->i2c_scl_freq;
 	} else {
-		pdata = dev_get_platdata(&pdev->dev);
-		if (pdata)
-			clk_freq = pdata->i2c_scl_freq;
+		device_property_read_u32(&pdev->dev, "i2c-sda-hold-time-ns",
+					 &ht);
+		device_property_read_u32(&pdev->dev, "i2c-sda-falling-time-ns",
+					 &dev->sda_falling_time);
+		device_property_read_u32(&pdev->dev, "i2c-scl-falling-time-ns",
+					 &dev->scl_falling_time);
+		device_property_read_u32(&pdev->dev, "clock-frequency",
+					 &clk_freq);
+	}
+
+	if (has_acpi_companion(&pdev->dev))
+		dw_i2c_acpi_configure(pdev);
+
+	/*
+	 * Only standard mode at 100kHz and fast mode at 400kHz are supported.
+	 */
+	if (clk_freq != 100000 && clk_freq != 400000) {
+		dev_err(&pdev->dev, "Only 100kHz and 400kHz supported");
+		return -EINVAL;
 	}
 
 	r = i2c_dw_eval_lock_support(dev);