Commit c8016fa2 authored Apr 22, 2018 by Hans de Goede Committed by Wolfram Sang Apr 30, 2018

i2c: core: ACPI: Improve OpRegion read errors



When we get an error doing an ACPI SerialBus I2C OpRegion read log some
useful details, like the client address and which register is being
read.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

parent 6da6c0db

drivers/i2c/i2c-core-acpi.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -446,7 +446,8 @@ static int acpi_gsb_i2c_read_bytes(struct i2c_client *client,

		ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
		if (ret < 0)
		dev_err(&client->adapter->dev, "i2c read failed\n");
		dev_err(&client->adapter->dev, "i2c read %d bytes from client@%#x starting at reg %#x failed, error: %d\n",
		data_len, client->addr, cmd, ret);
		else
		memcpy(data, buffer, data_len);