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| author | jeffrey.lin <jeffrey.lin@rad-ic.com> | 2020-12-15 10:50:12 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-04 10:26:40 +0100 |
| commit | d84f9c28abbe391fcbeebf19288e22450bd9b832 (patch) | |
| tree | af0fc54d415798518c35b5159982157da48aaab6 /drivers/input | |
| parent | 2d954832ba48d02a77387d0c4b8d71a1e8b91282 (diff) | |
| download | linux-d84f9c28abbe391fcbeebf19288e22450bd9b832.tar.gz linux-d84f9c28abbe391fcbeebf19288e22450bd9b832.tar.bz2 linux-d84f9c28abbe391fcbeebf19288e22450bd9b832.zip | |
Input: raydium_ts_i2c - do not send zero length
commit fafd320ae51b9c72d371585b2501f86640ea7b7d upstream.
Add default write command package to prevent i2c quirk error of zero
data length as Raydium touch firmware update is executed.
Signed-off-by: jeffrey.lin <jeffrey.lin@rad-ic.com>
Link: https://lore.kernel.org/r/1608031217-7247-1-git-send-email-jeffrey.lin@raydium.corp-partner.google.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/touchscreen/raydium_i2c_ts.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/input/touchscreen/raydium_i2c_ts.c b/drivers/input/touchscreen/raydium_i2c_ts.c index fe245439adee..2c67f8eacc7c 100644 --- a/drivers/input/touchscreen/raydium_i2c_ts.c +++ b/drivers/input/touchscreen/raydium_i2c_ts.c @@ -410,6 +410,7 @@ static int raydium_i2c_write_object(struct i2c_client *client, enum raydium_bl_ack state) { int error; + static const u8 cmd[] = { 0xFF, 0x39 }; error = raydium_i2c_send(client, RM_CMD_BOOT_WRT, data, len); if (error) { @@ -418,7 +419,7 @@ static int raydium_i2c_write_object(struct i2c_client *client, return error; } - error = raydium_i2c_send(client, RM_CMD_BOOT_ACK, NULL, 0); + error = raydium_i2c_send(client, RM_CMD_BOOT_ACK, cmd, sizeof(cmd)); if (error) { dev_err(&client->dev, "Ack obj command failed: %d\n", error); return error; |