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authorHans de Goede <hdegoede@redhat.com>2018-04-22 20:57:59 +0300
committerWolfram Sang <wsa@the-dreams.de>2018-04-30 11:53:26 +0300
commitc8016fa215d2d50920a58de07da2d00f7cb982f3 (patch)
tree4a3b060160889b13ff614d090758c610cd90d9eb /drivers/i2c/i2c-core-acpi.c
parent6da6c0db5316275015e8cc2959f12a17584aeb64 (diff)
downloadlinux-c8016fa215d2d50920a58de07da2d00f7cb982f3.tar.xz
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>
Diffstat (limited to 'drivers/i2c/i2c-core-acpi.c')
-rw-r--r--drivers/i2c/i2c-core-acpi.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
index a9126b3cda61..3dc43a009f5d 100644
--- a/drivers/i2c/i2c-core-acpi.c
+++ b/drivers/i2c/i2c-core-acpi.c
@@ -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);