| Message ID | 1608002466-9263-1-git-send-email-jeffrey.lin@raydium.corp-partner.google.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Input: raydium_ts_i2c: Do not send zero length | expand |
Hi Jeffrey, On Tue, Dec 15, 2020 at 11:21:06AM +0800, jeffrey.lin wrote: > 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> > BUG=b:174207906 > TEST=Successfully tested update Raydium touch firmware over 100 times > Change-Id: I311b0d26d7642bb800547cd0e87013be17cb7e1b > --- > drivers/input/touchscreen/raydium_i2c_ts.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/input/touchscreen/raydium_i2c_ts.c b/drivers/input/touchscreen/raydium_i2c_ts.c > index 603a948460d64..4d2d22a869773 100644 > --- a/drivers/input/touchscreen/raydium_i2c_ts.c > +++ b/drivers/input/touchscreen/raydium_i2c_ts.c > @@ -445,6 +445,7 @@ 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) { > @@ -453,7 +454,7 @@ 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)); Is this supported by all firmwares? > if (error) { > dev_err(&client->dev, "Ack obj command failed: %d\n", error); > return error; > -- > 2.26.2 > Thanks.
diff --git a/drivers/input/touchscreen/raydium_i2c_ts.c b/drivers/input/touchscreen/raydium_i2c_ts.c index 603a948460d64..4d2d22a869773 100644 --- a/drivers/input/touchscreen/raydium_i2c_ts.c +++ b/drivers/input/touchscreen/raydium_i2c_ts.c @@ -445,6 +445,7 @@ 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) { @@ -453,7 +454,7 @@ 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;
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> BUG=b:174207906 TEST=Successfully tested update Raydium touch firmware over 100 times Change-Id: I311b0d26d7642bb800547cd0e87013be17cb7e1b --- drivers/input/touchscreen/raydium_i2c_ts.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)