Messages in this thread Patches in this message | | | Subject | Re: [PATCH 04/17] media: camss: csid-170: fix non-10bit formats | From | Andrey Konovalov <> | Date | Wed, 26 May 2021 16:59:55 +0300 |
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Hi Jonathan,
On 25.05.2021 21:38, Jonathan Marek wrote: > On 5/25/21 2:15 PM, Andrey Konovalov wrote: >> Hi Jonathan, >> >> Thank you for your patch! >> >> On 11.05.2021 21:07, Jonathan Marek wrote: >>> Use the decode_format/data_type from the "format" struct instead of a >>> hardcoded 10-bit format. >>> >>> Fixes: eebe6d00e9bf ("media: camss: Add support for CSID hardware version Titan 170") >>> Signed-off-by: Jonathan Marek <jonathan@marek.ca> >>> --- >>> drivers/media/platform/qcom/camss/camss-csid-170.c | 6 +++--- >>> 1 file changed, 3 insertions(+), 3 deletions(-) >>> >>> diff --git a/drivers/media/platform/qcom/camss/camss-csid-170.c b/drivers/media/platform/qcom/camss/camss-csid-170.c >>> index ac22ff29d2a9..a81cc94c075f 100644 >>> --- a/drivers/media/platform/qcom/camss/camss-csid-170.c >>> +++ b/drivers/media/platform/qcom/camss/camss-csid-170.c >>> @@ -366,7 +366,7 @@ static void csid_configure_stream(struct csid_device *csid, u8 enable) >>> val |= input_format->width & 0x1fff << TPG_DT_n_CFG_0_FRAME_WIDTH; >>> writel_relaxed(val, csid->base + CSID_TPG_DT_n_CFG_0(0)); >>> - val = DATA_TYPE_RAW_10BIT << TPG_DT_n_CFG_1_DATA_TYPE; >>> + val = format->data_type << TPG_DT_n_CFG_1_DATA_TYPE; >>> writel_relaxed(val, csid->base + CSID_TPG_DT_n_CFG_1(0)); >>> val = tg->mode << TPG_DT_n_CFG_2_PAYLOAD_MODE; >>> @@ -382,8 +382,8 @@ static void csid_configure_stream(struct csid_device *csid, u8 enable) >>> val = 1 << RDI_CFG0_BYTE_CNTR_EN; >>> val |= 1 << RDI_CFG0_FORMAT_MEASURE_EN; >>> val |= 1 << RDI_CFG0_TIMESTAMP_EN; >>> - val |= DECODE_FORMAT_PAYLOAD_ONLY << RDI_CFG0_DECODE_FORMAT; >>> - val |= DATA_TYPE_RAW_10BIT << RDI_CFG0_DATA_TYPE; >>> + val |= format->decode_format << RDI_CFG0_DECODE_FORMAT; >>> + val |= format->data_type << RDI_CFG0_DATA_TYPE; >> >> I've given it a try on RB3 board (aka db845c plus the navigation mezzanine), which uses ov8856 camera >> sensor (its output format is SGRBG10_1X10). >> >> The above change doesn't work for me because format->decode_format has the value of 0x02 (which is >> DECODE_FORMAT_UNCOMPRESSED_10_BIT). format->data_type has the expected value of 0x2b (DATA_TYPE_RAW_10BIT). >> > > I will change it back to using DECODE_FORMAT_PAYLOAD_ONLY for the v2, since it does seem like this is the correct value for the > RDI path.
Sounds good. Just in case, I've tried
--- a/drivers/media/platform/qcom/camss/camss-csid-170.c +++ b/drivers/media/platform/qcom/camss/camss-csid-170.c @@ -390,7 +390,7 @@ static void csid_configure_stream(struct csid_device *csid, u8 enable) val = 1 << RDI_CFG0_BYTE_CNTR_EN; val |= 1 << RDI_CFG0_FORMAT_MEASURE_EN; val |= 1 << RDI_CFG0_TIMESTAMP_EN; - val |= format->decode_format << RDI_CFG0_DECODE_FORMAT; + val |= DECODE_FORMAT_PAYLOAD_ONLY << RDI_CFG0_DECODE_FORMAT; val |= format->data_type << RDI_CFG0_DATA_TYPE; val |= vc << RDI_CFG0_VIRTUAL_CHANNEL; val |= dt_id << RDI_CFG0_DT_ID; on top of v1 patchset, and it worked OK on RB3 with the ov8856 camera.
I planned to check the other RB3's camera too - the "tracking" ov7251 one, but it turned out that I don't have the information on which particular SOC's MIPI lanes are connected to this camera. I've tried a few clock-lanes/data-lanes combinations, but none worked (ov7251 is controlled OK via the i2c bus, but no data are captured).
> (but IIRC, using DECODE_FORMAT_UNCOMPRESSED_10_BIT worked on RB3 with the ov8856 camera last year when I brought it up. maybe > the VFE or another register is configured differently)
OK. I only used the current upstream camss driver, so have nothing to compare it against.
I also noticed that with ov8856 camera, only 3264x2448 and 1632x1224 modes work correctly on RB3 (used the current media_tree). But with the below change all the other modes (3280x2464 and 1640x1232) start working OK too:
--- a/drivers/media/platform/qcom/camss/camss-vfe.c +++ b/drivers/media/platform/qcom/camss/camss-vfe.c @@ -1575,7 +1575,7 @@ int msm_vfe_register_entities(struct vfe_device *vfe, }
video_out->ops = &vfe->video_ops; - video_out->bpl_alignment = 8; + video_out->bpl_alignment = 16; video_out->line_based = 0; if (i == VFE_LINE_PIX) { video_out->bpl_alignment = 16; And (with the increased size of the capture buffer) I did see that the data captured from camss were padded to the next 16-byte boundary with the data from the previous 16-byte chunk. E.g. in the 3280x2464 case 12 padding bytes were added. Personally I don't have access to the datasheet, but I've been told that as per the docs, 16-byte alignment should not be needed in this case (RAW10P camera connected through rdi). Does it ring any bell for you?
Thanks, Andrey
>> Thanks, >> Andrey >> >>> val |= vc << RDI_CFG0_VIRTUAL_CHANNEL; >>> val |= dt_id << RDI_CFG0_DT_ID; >>> writel_relaxed(val, csid->base + CSID_RDI_CFG0(0)); >>>
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