Messages in this thread Patch in this message | | | From | Tin Huynh <> | Subject | [PATCH V1] leds: pca955x: Correct I2C Functionality | Date | Mon, 22 May 2017 16:19:20 +0700 |
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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> --- 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 78a7ce8..9a87311 100644 --- a/drivers/leds/leds-pca955x.c +++ b/drivers/leds/leds-pca955x.c @@ -285,7 +285,7 @@ static int pca955x_probe(struct i2c_client *client, "slave address 0x%02x\n", client->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) { -- 1.7.1
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