[PATCH 2/2] media: venus: Fix NV12 decoder buffer discovery on HFI_VERSION_1XX

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HFI_VERSION_1XX uses HFI_BUFFER_OUTPUT not HFI_BUFFER_OUTPUT2 for decoder
buffers.

venus_helper_check_format() places a constraint on an output buffer to be
of type HFI_BUFFER_OUTPUT2. HFI_1XX uses HFI_BUFFER_OUTPUT though.

Switching to the logic used in venus_helper_get_out_fmts() first checking
for HFI_BUFFER_OUTPUT and then HFI_BUFFER_OUTPUT2 resolves on HFI_1XX.

db410c before:
root@linaro-alip:~# v4l2-ctl  -d /dev/video0 --list-formats
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture Multiplanar

        [0]: 'MPG4' (MPEG-4 Part 2 ES, compressed)
        [1]: 'H263' (H.263, compressed)
        [2]: 'H264' (H.264, compressed)
        [3]: 'VP80' (VP8, compressed)

root@linaro-alip:~# v4l2-ctl  -d /dev/video1 --list-formats
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture Multiplanar

db410c after:
root@linaro-alip:~# v4l2-ctl  -d /dev/video0 --list-formats
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture Multiplanar

        [0]: 'MPG4' (MPEG-4 Part 2 ES, compressed)
        [1]: 'H263' (H.263, compressed)
        [2]: 'H264' (H.264, compressed)
        [3]: 'VP80' (VP8, compressed)

root@linaro-alip:~# v4l2-ctl  -d /dev/video1 --list-formats
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture Multiplanar

        [0]: 'NV12' (Y/CbCr 4:2:0)

Validated playback with ffplay on db410c with h264 and vp8 decoding.

Fixes: 9593126dae3e ("media: venus: Add a handling of QC08C compressed format")
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>
---
 drivers/media/platform/qcom/venus/helpers.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
index 5c1104379c491..623be6393c706 100644
--- a/drivers/media/platform/qcom/venus/helpers.c
+++ b/drivers/media/platform/qcom/venus/helpers.c
@@ -1802,7 +1802,7 @@ bool venus_helper_check_format(struct venus_inst *inst, u32 v4l2_pixfmt)
 	struct venus_core *core = inst->core;
 	u32 fmt = to_hfi_raw_fmt(v4l2_pixfmt);
 	struct hfi_plat_caps *caps;
-	u32 buftype;
+	bool found;
 
 	if (!fmt)
 		return false;
@@ -1811,12 +1811,13 @@ bool venus_helper_check_format(struct venus_inst *inst, u32 v4l2_pixfmt)
 	if (!caps)
 		return false;
 
-	if (inst->session_type == VIDC_SESSION_TYPE_DEC)
-		buftype = HFI_BUFFER_OUTPUT2;
-	else
-		buftype = HFI_BUFFER_OUTPUT;
+	found = find_fmt_from_caps(caps, HFI_BUFFER_OUTPUT, fmt);
+	if (found)
+		goto done;
 
-	return find_fmt_from_caps(caps, buftype, fmt);
+	found = find_fmt_from_caps(caps, HFI_BUFFER_OUTPUT2, fmt);
+done:
+	return found;
 }
 EXPORT_SYMBOL_GPL(venus_helper_check_format);
 
-- 
2.36.1




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