lkml.org 
[lkml]   [2018]   [Mar]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH AUTOSEL for 4.9 092/281] leds: pca955x: Correct I2C Functionality
    Date
    From: Tin Huynh <tnhuynh@apm.com>

    [ 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>
    ---
    drivers/leds/leds-pca955x.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c
    index 840401ae9a4e..f6726484a8a1 100644
    --- a/drivers/leds/leds-pca955x.c
    +++ b/drivers/leds/leds-pca955x.c
    @@ -266,7 +266,7 @@ 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) {
    --
    2.14.1
    \
     
     \ /
      Last update: 2018-03-19 22:22    [W:3.226 / U:0.304 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site