diff options
| author | Tin Huynh <tnhuynh@apm.com> | 2017-05-22 16:19:20 +0700 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@microsoft.com> | 2018-05-22 21:36:25 -0400 |
| commit | ebcf3c7421675f0e34befbd5d3a5c8207cdc1e9e (patch) | |
| tree | c16cffa274e8d8a24309917db87e87c472e96645 | |
| parent | 5e2eee8e54bd31ede9110a6a4c620d07203a866b (diff) | |
leds: pca955x: Correct I2C Functionality
[ Upstream commit aace34c0bb8ea3c8bdcec865b6a4be4db0a68e33 ]
The driver checks an incorrect flag of functionality of adapter.
When a driver requires i2c_smbus_read_byte_data and
i2c_smbus_write_byte_data, it should check I2C_FUNC_SMBUS_BYTE_DATA
instead I2C_FUNC_I2C.
This patch fixes the problem.
Signed-off-by: Tin Huynh <tnhuynh@apm.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
| -rw-r--r-- | drivers/leds/leds-pca955x.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c index c3a08b60535b..760deffa9ad3 100644 --- a/drivers/leds/leds-pca955x.c +++ b/drivers/leds/leds-pca955x.c @@ -281,7 +281,7 @@ static int pca955x_probe(struct i2c_client *client, "slave address 0x%02x\n", id->name, chip->bits, client->addr); - if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -EIO; if (pdata) { |