On 22.08.2023 18:16, Bryan O'Donoghue wrote:
> VC_MODE = 0 implies a two bit VC address.
> VC_MODE = 1 is required for VCs with a larger address than two bits.
>
> Fixes: eebe6d00e9bf ("media: camss: Add support for CSID hardware version Titan 170")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>
> ---
> drivers/media/platform/qcom/camss/camss-csid-gen2.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/media/platform/qcom/camss/camss-csid-gen2.c b/drivers/media/platform/qcom/camss/camss-csid-gen2.c
> index 45c7986d4a8d0..140c584bfb8b1 100644
> --- a/drivers/media/platform/qcom/camss/camss-csid-gen2.c
> +++ b/drivers/media/platform/qcom/camss/camss-csid-gen2.c
> @@ -449,6 +449,8 @@ static void __csid_configure_stream(struct csid_device *csid, u8 enable, u8 vc)
> writel_relaxed(val, csid->base + CSID_CSI2_RX_CFG0);
>
> val = 1 << CSI2_RX_CFG1_PACKET_ECC_CORRECTION_EN;
> + if (vc > 3)
I hope you don't pull your hair out, but I think GENMASK(1,0) could be
in order here with a comment about the bitlength requirements
Konrad
> + val |= 1 << CSI2_RX_CFG1_VC_MODE;
> val |= 1 << CSI2_RX_CFG1_MISR_EN;
> writel_relaxed(val, csid->base + CSID_CSI2_RX_CFG1);
>
