| From foo@baz Mon Nov 6 10:42:09 CET 2017 |
| From: Oleh Kravchenko <oleg@kaa.org.ua> |
| Date: Sat, 7 Oct 2017 22:38:00 +0000 |
| Subject: cx231xx: Fix I2C on Internal Master 3 Bus |
| |
| From: Oleh Kravchenko <oleg@kaa.org.ua> |
| |
| |
| [ Upstream commit 6c5da8031a3abfad259190d35f83d89568b72ee2 ] |
| |
| Internal Master 3 Bus can send and receive only 4 bytes per time. |
| |
| Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua> |
| Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> |
| Signed-off-by: Sasha Levin <alexander.levin@verizon.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| --- |
| drivers/media/usb/cx231xx/cx231xx-core.c | 7 ++++++- |
| 1 file changed, 6 insertions(+), 1 deletion(-) |
| |
| --- a/drivers/media/usb/cx231xx/cx231xx-core.c |
| +++ b/drivers/media/usb/cx231xx/cx231xx-core.c |
| @@ -365,7 +365,12 @@ int cx231xx_send_vendor_cmd(struct cx231 |
| */ |
| if ((ven_req->wLength > 4) && ((ven_req->bRequest == 0x4) || |
| (ven_req->bRequest == 0x5) || |
| - (ven_req->bRequest == 0x6))) { |
| + (ven_req->bRequest == 0x6) || |
| + |
| + /* Internal Master 3 Bus can send |
| + * and receive only 4 bytes per time |
| + */ |
| + (ven_req->bRequest == 0x2))) { |
| unsend_size = 0; |
| pdata = ven_req->pBuff; |
| |
