1 files changed, 31 insertions, 41 deletions

diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 1f1442dfcad7..d1f278f73011 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -1598,6 +1598,18 @@ void i2c_del_adapter(struct i2c_adapter *adap)
 }
 EXPORT_SYMBOL(i2c_del_adapter);
 
+static void i2c_parse_timing(struct device *dev, char *prop_name, u32 *cur_val_p,
+			    u32 def_val, bool use_def)
+{
+	int ret;
+
+	ret = device_property_read_u32(dev, prop_name, cur_val_p);
+	if (ret && use_def)
+		*cur_val_p = def_val;
+
+	dev_dbg(dev, "%s: %u\n", prop_name, *cur_val_p);
+}
+
 /**
  * i2c_parse_fw_timings - get I2C related timing parameters from firmware
  * @dev: The device to scan for I2C timing properties
@@ -1616,49 +1628,28 @@ EXPORT_SYMBOL(i2c_del_adapter);
  */
 void i2c_parse_fw_timings(struct device *dev, struct i2c_timings *t, bool use_defaults)
 {
-	int ret;
-
-	ret = device_property_read_u32(dev, "clock-frequency", &t->bus_freq_hz);
-	if (ret && use_defaults)
-		t->bus_freq_hz = I2C_MAX_STANDARD_MODE_FREQ;
-
-	ret = device_property_read_u32(dev, "i2c-scl-rising-time-ns", &t->scl_rise_ns);
-	if (ret && use_defaults) {
-		if (t->bus_freq_hz <= I2C_MAX_STANDARD_MODE_FREQ)
-			t->scl_rise_ns = 1000;
-		else if (t->bus_freq_hz <= I2C_MAX_FAST_MODE_FREQ)
-			t->scl_rise_ns = 300;
-		else
-			t->scl_rise_ns = 120;
-	}
-
-	ret = device_property_read_u32(dev, "i2c-scl-falling-time-ns", &t->scl_fall_ns);
-	if (ret && use_defaults) {
-		if (t->bus_freq_hz <= I2C_MAX_FAST_MODE_FREQ)
-			t->scl_fall_ns = 300;
-		else
-			t->scl_fall_ns = 120;
-	}
-
-	ret = device_property_read_u32(dev, "i2c-scl-internal-delay-ns", &t->scl_int_delay_ns);
-	if (ret && use_defaults)
-		t->scl_int_delay_ns = 0;
+	bool u = use_defaults;
+	u32 d;
 
-	ret = device_property_read_u32(dev, "i2c-sda-falling-time-ns", &t->sda_fall_ns);
-	if (ret && use_defaults)
-		t->sda_fall_ns = t->scl_fall_ns;
+	i2c_parse_timing(dev, "clock-frequency", &t->bus_freq_hz,
+			 I2C_MAX_STANDARD_MODE_FREQ, u);
 
-	ret = device_property_read_u32(dev, "i2c-sda-hold-time-ns", &t->sda_hold_ns);
-	if (ret && use_defaults)
-		t->sda_hold_ns = 0;
+	d = t->bus_freq_hz <= I2C_MAX_STANDARD_MODE_FREQ ? 1000 :
+	    t->bus_freq_hz <= I2C_MAX_FAST_MODE_FREQ ? 300 : 120;
+	i2c_parse_timing(dev, "i2c-scl-rising-time-ns", &t->scl_rise_ns, d, u);
 
-	ret = device_property_read_u32(dev, "i2c-digital-filter-width-ns", &t->digital_filter_width_ns);
-	if (ret && use_defaults)
-		t->digital_filter_width_ns = 0;
+	d = t->bus_freq_hz <= I2C_MAX_FAST_MODE_FREQ ? 300 : 120;
+	i2c_parse_timing(dev, "i2c-scl-falling-time-ns", &t->scl_fall_ns, d, u);
 
-	ret = device_property_read_u32(dev, "i2c-analog-filter-cutoff-frequency", &t->analog_filter_cutoff_freq_hz);
-	if (ret && use_defaults)
-		t->analog_filter_cutoff_freq_hz = 0;
+	i2c_parse_timing(dev, "i2c-scl-internal-delay-ns",
+			 &t->scl_int_delay_ns, 0, u);
+	i2c_parse_timing(dev, "i2c-sda-falling-time-ns", &t->sda_fall_ns,
+			 t->scl_fall_ns, u);
+	i2c_parse_timing(dev, "i2c-sda-hold-time-ns", &t->sda_hold_ns, 0, u);
+	i2c_parse_timing(dev, "i2c-digital-filter-width-ns",
+			 &t->digital_filter_width_ns, 0, u);
+	i2c_parse_timing(dev, "i2c-analog-filter-cutoff-frequency",
+			 &t->analog_filter_cutoff_freq_hz, 0, u);
 }
 EXPORT_SYMBOL_GPL(i2c_parse_fw_timings);
 
@@ -2195,7 +2186,6 @@ static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver)
 	const unsigned short *address_list;
 	struct i2c_client *temp_client;
 	int i, err = 0;
-	int adap_id = i2c_adapter_id(adapter);
 
 	address_list = driver->address_list;
 	if (!driver->detect || !address_list)
@@ -2223,7 +2213,7 @@ static int i2c_detect(struct i2c_adapter *adapter, struct i2c_driver *driver)
 	for (i = 0; address_list[i] != I2C_CLIENT_END; i += 1) {
 		dev_dbg(&adapter->dev,
 			"found normal entry for adapter %d, addr 0x%02x\n",
-			adap_id, address_list[i]);
+			i2c_adapter_id(adapter), address_list[i]);
 		temp_client->addr = address_list[i];
 		err = i2c_detect_address(temp_client, driver);
 		if (unlikely(err))