The driver uses a static CSI-2 virtual channel mapping where all virtual channels from an RX port are mapped to a virtual channel number matching the RX port number.
The UB960 and UB9702 have different registers for the purpose, and the UB9702 version is not correct. Each of the VC_ID_MAP registers do not contain a single mapping, as the driver currently thinks, but two.
This can cause received VCs other than 0 to be mapped in a wrong way.
Fix this by writing both mappings to each register.
Signed-off-by: Tomi Valkeinen tomi.valkeinen@ideasonboard.com Cc: stable@vger.kernel.org Fixes: afe267f2d368 ("media: i2c: add DS90UB960 driver") --- drivers/media/i2c/ds90ub960.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/i2c/ds90ub960.c b/drivers/media/i2c/ds90ub960.c index 94c8acf171b4..bfffa14e2049 100644 --- a/drivers/media/i2c/ds90ub960.c +++ b/drivers/media/i2c/ds90ub960.c @@ -2533,7 +2533,7 @@ static int ub960_configure_ports_for_streaming(struct ub960_data *priv, for (i = 0; i < 8; i++) ub960_rxport_write(priv, nport, UB960_RR_VC_ID_MAP(i), - nport); + (nport << 4) | nport); }
break;