[PATCH v2 0/9] Add support for DMA2D of STMicroelectronics STM32 Soc series

From: dillon . minfei
Date: Thu Jul 15 2021 - 05:25:29 EST

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From: Dillon Min <dillon.minfei@xxxxxxxxx>

This patchset introduces a basic support for DMA2D Interface
of STMicroelectronics STM32 SoC series.

This first basic support implements R2M, M2M, M2M_PFC
M2M_BLEND support will be added later on.

This has been tested on STM32469-DISCO board.

history

v2:
- update v4l2-compliance to SHA: a4f2e3a6f306 2021-07-13 08:04:15
the test results at below [1].
- introduce Documentation/userspace-api/media/drivers/stm32-uapi.rst
to explain the detail of dma2d's ioctl.
- reserved 16 ioctls from v4l2-controls.h for stm32, introduce stm32-media.h.
- collect Reviewed-by tag from Rob Herring.
- update dma2d driver from Hans's review. the details can be found
at related patches.
v1 link:
https://lore.kernel.org/lkml/1621508727-24486-1-git-send-email-dillon.minfei@xxxxxxxxx/

v1:
The commit based on kernel(master): c3d0e3fd41b7f0f5d5d5b6022ab7e813f04ea727

Note for v4l2-compliance tool on nu-mmu platform:
I add two change based on v4l-utils since commit:
f0c7e3d71eaf4182bae7eb3ee0e43b4eeb047ea9

- change fork() to vfork() in v4l2-test-controls.cpp
since no-mmu platform don't include fork().

- bypass VIDIOC_QUERYCAP nullptr check
I'm not sure if this is the bug from my cross compile tool
which created by buildroot. user area's nullptr can't be
detected by kernel side, i was try to add access_ok()
in v4l2-ioctl.c, but no help

If this case must be fixed, i will continue to debug it.
the error log:
...
fail: v4l2-compliance.cpp(623): doioctl(node, VIDIOC_QUERYCAP, nullptr) !=
EFAULT
..

My changes on v4l2-compliance:

diff --git a/utils/v4l2-compliance/v4l2-compliance.cpp
b/utils/v4l2-compliance/v4l2-compliance.cpp
index 90a5036..a25fe4f 100644
--- a/utils/v4l2-compliance/v4l2-compliance.cpp
+++ b/utils/v4l2-compliance/v4l2-compliance.cpp
@@ -620,7 +620,7 @@ static int testCap(struct node *node)

memset(&vcap, 0xff, sizeof(vcap));
// Must always be there
- fail_on_test(doioctl(node, VIDIOC_QUERYCAP, nullptr) != EFAULT);
+ //fail_on_test(doioctl(node, VIDIOC_QUERYCAP, nullptr) != EFAULT);
fail_on_test(doioctl(node, VIDIOC_QUERYCAP, &vcap));
fail_on_test(check_ustring(vcap.driver, sizeof(vcap.driver)));
fail_on_test(check_ustring(vcap.card, sizeof(vcap.card)));

with v4l2-compliance test log (with above modification):
since the stm32f469-disco ram limitation, there are 25 failed on
dma_alloc_coherent()

Really appreciate if someone can help to test this patch on the STM32429I-EVAL
evaluation board (https://www.st.com/en/evaluation-tools/stm32429i-eval.html)
8M x 32-bit SDRAM, 1M x 16-bit SRAM and 8M x 16-bit NOR Flash

/ # free
total used free shared buffers cached
Mem: 15604 6104 9500 0 0 2488
-/+ buffers/cache: 3616 11988

[1] v4l2-compliance test result:

./v4l2-compliance -s -f -d /dev/video0 &
[1] 34 ./v4l2-compliance -s -f -d /dev/video0
/ # v4l2-compliance 1.21.0-4831, 32 bits, 32-bit time_t
v4l2-compliance SHA: a4f2e3a6f306 2021-07-13 08:04:15

Compliance test for stm-dma2d device /dev/video0:

Driver Info:
Driver name : stm-dma2d
Card type : stm-dma2d
Bus info : platform:stm-dma2d
Driver version : 5.14.0
Capabilities : 0x84208000
Video Memory-to-Memory
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04208000
Video Memory-to-Memory
Streaming
Extended Pix Format

Required ioctls:
test VIDIOC_QUERYCAP: OK
test invalid ioctls: OK

Allow for multiple opens:
test second /dev/video0 open: OK
test VIDIOC_QUERYCAP: OK
test VIDIOC_G/S_PRIORITY: OK
test for unlimited opens: OK

Debug ioctls:
test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
test VIDIOC_LOG_STATUS: OK (Not Supported)

Input ioctls:
test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
test VIDIOC_ENUMAUDIO: OK (Not Supported)
test VIDIOC_G/S/ENUMINPUT: OK (Not Supported)
test VIDIOC_G/S_AUDIO: OK (Not Supported)
Inputs: 0 Audio Inputs: 0 Tuners: 0

Output ioctls:
test VIDIOC_G/S_MODULATOR: OK (Not Supported)
test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
test VIDIOC_ENUMAUDOUT: OK (Not Supported)
test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
test VIDIOC_G/S_AUDOUT: OK (Not Supported)
Outputs: 0 Audio Outputs: 0 Modulators: 0

Input/Output configuration ioctls:
test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
test VIDIOC_G/S_EDID: OK (Not Supported)[

Control ioctls:
test VIDIOC_QUERY_EX _CTRL/QUERY ENU: 55.029750] stm-dma2d 4002b000.dma2d: Format not supported: ▒▒▒▒, use the default.
OK
test VIDIOC_QUERYCTRL: OK
test VIDIOC_G[S_CTRL: OK
test VIDIOC_G/S/TRY_EXT_CTRLS OK
test VI I C_(UN)SUBSCRIBE_EVENT/DQEVENT: OK
test 55DIOC_G/S_JP.784007] stm-dma2d 4002b000.dma2d: Format not supported: ▒▒▒▒, use the default.
EGCOMP: OK (Not Supported)
Standard Controls: 2 Private[Controls: 2

For a ioctls:
5est VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK0m
test VI.IOC_G/S_PAR5: OK (Not 50538] stm-dma2d 4002b000.dma2d: Format not supported: ▒▒▒▒, use the default.
Supported)
test VIDIOC_G_FBUF: OK (Not Supported)
test[V DIOC_G_FM : OK
test VID5OC_T7Y_FMT: OK
.316175] stm-dma2d 4002b000.dma2d: Format not supported: ▒▒▒▒, use the default.
test VIDIOC_S_FMT: OK
test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
test Cropping: OK (Not Supported)
test Composing: OK (Not Supported)
test Scaling: OK

Codec ioctls:
test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
test VIDIOC_G_ENC_INDEX: OK (Not Supported)
test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)

Buffer ioctls:
test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
test VIDIOC_EXPBUF: OK
test Requests: OK (Not Supported)

Test input 0:

Streaming ioctls:
test read/write: OK (Not Supported)
test blocking wait: OK
[ 59.905900] use of bytesused == 0 is deprecated and will be removed in the future,
[ 60.665190] use the actual size instead.
Video Capture: Captured 58 buffers
test MMAP (no poll): OK
Video Capture: Captured 58 buffers
test MMAP (select): OK
Video Capture: Captured 58 buffers
test MMAP (epoll): OK
test USERPTR (no poll): OK (Not Supported)
test USERPTR (select): OK (Not Supported)
test DMABUF: Cannot test, specify --expbuf-device

Stream using all formats:
Video Capture: Captured 8 buffers
BA24 (32-bit ARGB 8-8-8-8) 1x1 -> BA24 (32-bit ARGB 8-8-8-8) 1x1: OK
Video Capture: Captured 8 buffers
BA24 (32-bit ARGB 8-8-8-8) 1x1 -> RGB3 (24-bit RGB 8-8-8) 1x1: OK
Video Capture: Captured 8 buffers
BA24 (32-bit ARGB 8-8-8-8) 1x1 -> RGBP (16-bit RGB 5-6-5) 1x1: OK
Video Capture: Captured 8 buffers
BA24 (32-bit ARGB 8-8-8-8) 1x1 -> AR15 (16-bit ARGB 1-5-5-5) 1x1: OK
Video Capture: Captured 8 buffers
BA24 (32-bit ARGB 8-8-8-8) 1x1 -> AR12 (16-bit ARGB 4-4-4-4) 1x1: OK
[ 83.015780] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -323584 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
BA24 (32-bit ARGB 8-8-8-8) 16383x65535 -> BA24 (32-bit ARGB 8-8-8-8) 16383x65535: FAIL
[ 83.959807] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -323584 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
BA24 (32-bit ARGB[8-8-8-8) 16383x 553 -> RGB3 (24- it R8B 8-8-84 16383x65535: FAIL
.899851] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -323584 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
BA24 (32-bit ARGB 8-8-8-8)[16383x65535 -> RGBP (16-bit RGB -6-5) 16383x65535: FA L
85.848108] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -323584 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
BA24 (32-bit ARGB 8-8-8-8) 16383x65535 -> AR15 (16-bit ARGB 1-5-5-5) 16[83x65535: F IL
86.802223] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -323584 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
BA24 (32-bit ARGB 8-8-8-8) 16383x65535 -> AR12 (16-bit ARGB 4-4-4-4) 16383x65535: FAIL
Video Capture: Captured 8 buffers
BA24 (32-bit ARGB 8-8-8-8) 240x320 -> BA24 (32-bit ARGB 8-8-8-8) 240x320: OK
Video Capture: Captured 8 buffers
BA24 (32-bit ARGB 8-8-8-8) 240x320 -> RGB3 (24-bit RGB 8-8-8) 240x320: OK
Video Capture: Captured 8 buffers
BA24 (32-bit ARGB 8-8-8-8) 240x320 -> RGBP (16-bit RGB 5-6-5) 240x320: OK
Video Capture: Captured 8 buffers
BA24 (32-bit ARGB 8-8-8-8) 240x320 -> AR15 (16-bit ARGB 1-5-5-5) 240x320: OK
Video Capture: Captured 8 buffers
BA24 (32-bit ARGB 8-8-8-8) 240x320 -> AR12 (16-bit ARGB 4-4-4-4) 240x320: OK
Video Capture: Captured 8 buffers
RGB3 (24-bit RGB 8-8-8) 1x1 -> BA24 (32-bit ARGB 8-8-8-8) 1x1: OK
Video Capture: Captured 8 buffers
RGB3 (24-bit RGB 8-8-8) 1x1 -> RGB3 (24-bit RGB 8-8-8) 1x1: OK
Video Capture: Captured 8 buffers
RGB3 (24-bit RGB 8-8-8) 1x1 -> RGBP (16-bit RGB 5-6-5) 1x1: OK
Video Capture: Captured 8 buffers
RGB3 (24-bit RGB 8-8-8) 1x1 -> AR15 (16-bit ARGB 1-5-5-5) 1x1: OK
Video Capture: Captured 8 buffers
RGB3 (24-bit RGB 8-8-8) 1x1 -> AR12 (16-bit[ARGB 4-4-4-4) 1x1: OK
89.086437] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -1073983488 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
RGB3 (24-bi[ GB 8-8-8) 16383x65535 > BA24 (32-bit A GB 8-8-8-8) 16383965505: FA.L
030474] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -1073983488 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
978755] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -1073983488 failed035: 31mFAIL
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
RGB3 (24-bit RGB [-8-8) 16383 65535 -> RGBP (16-bit RGB 5-6-5) 16383x65535: FA L
91.923561] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -1073983488 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
RGB3 (24-bit RGB 8-8-8) 16383x65535 -> AR15 (16-bit ARGB 1-5-5-5) 16383x65535: FAIL
[ 92.885742] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size -1073983488 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
RGB3 (24-bit RGB 8-8-8) 16383x65535 -> AR12 (16-bit ARGB 4-4-4-4) 16383x65535: FAIL
Video Capture: Captured 8 buffers
RGB3 (24-bit RGB 8-8-8) 240x320 -> BA24 (32-bit ARGB 8-8-8-8) 240x320: OK
Video Capture: Captured 8 buffers
RGB3 (24-bit RGB 8-8-8) 240x320 -> RGB3 (24-bit RGB 8-8-8) 240x320: OK
Video Capture: Captured 8 buffers
RGB3 (24-bit RGB 8-8-8) 240x320 -> RGBP (16-bit RGB 5-6-5) 240x320: OK
Video Capture: Captured 8 buffers
RGB3 (24-bit RGB 8-8-8) 240x320 -> AR15 (16-bit ARGB 1-5-5-5) 240x320: OK
Video Capture: Captured 8 buffers
RGB3 (24-bit RGB 8-8-8) 240x320 -> AR12 (16-bit ARGB 4-4-4-4) 240x320: OK
Video Capture: Captured 8 buffers
RGBP (16-bit RGB 5-6-5) 1x1 -> BA24 (32-bit ARGB 8-8-8-8) 1x1: OK
Video Capture: Captured 8 buffers
RGBP (16-bit RGB 5-6-5) 1x1 -> RGB3 (24-bit RGB 8-8-8) 1x1: OK
Video Capture: Captured 8 buffers
RGBP (16-bit RGB 5-6-5) 1x1 -> RGBP (16-bit RGB 5-6-5) 1x1: OK
Video Capture: Captured 8 buffers
RGBP (16-bit RGB 5-6-5) 1x1 -> AR15 (16-bit ARGB 1-5-5-5) 1x1: OK
Video Capture: Captured 8 buffers
RGBP (16-bit RGB 5-6-5) 1x1 -> AR12 (16-bit AR[B 4-4-4-4) 1x1: OK
95.008330] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
50176] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed83x95535: FAIL
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
RGBP (16-bit RGB 5-6-[) 16383x65535 -> R B3 (24-bit RG 8-8-8) 16383x65535: FAIL9[0m
6.895671] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
RGBP (16-bit RGB 5-6-5) 16383x65535 -> RGBP (16-bit RGB 5-6-5) 16383x65535: FAIL
[ 97.851563] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
RGBP (16-bit [GB 5 6-5) 16383x6553 -> AR15 (16-bit ARGB 1-5-5-5) 16383x69535: FAIL.
791193] stm-dma2d 4002b000.dma2d: dma_alloc_coherd
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
RGBP (16-bit RGB 5-6-5) 16383x65535 -> AR12 (16-bit ARGB 4-4-4-4) 16383x65535: FAIL
Video Capture: Captured 8 buffers
RGBP (16-bit RGB 5-6-5) 240x320 -> BA24 (32-bit ARGB 8-8-8-8) 240x320: OK
Video Capture: Captured 8 buffers
RGBP (16-bit RGB 5-6-5) 240x320 -> RGB3 (24-bit RGB 8-8-8) 240x320: OK
Video Capture: Captured 8 buffers
RGBP (16-bit RGB 5-6-5) 240x320 -> RGBP (16-bit RGB 5-6-5) 240x320: OK
Video Capture: Captured 8 buffers
RGBP (16-bit RGB 5-6-5) 240x320 -> AR15 (16-bit ARGB 1-5-5-5) 240x320: OK
Video Capture: Captured 8 buffers
RGBP (16-bit RGB 5-6-5) 240x320 -> AR12 (16-bit ARGB 4-4-4-4) 240x320: OK
Video Capture: Captured 8 buffers
AR15 (16-bit ARGB 1-5-5-5) 1x1 -> BA24 (32-bit ARGB 8-8-8-8) 1x1: OK
Video Capture: Captured 8 buffers
AR15 (16-bit ARGB 1-5-5-5) 1x1 -> RGB3 (24-bit RGB 8-8-8) 1x1: OK
Video Capture: Captured 8 buffers
AR15 (16-bit ARGB 1-5-5-5) 1x1 -> RGBP (16-bit RGB 5-6-5) 1x1: OK
Video Capture: Captured 8 buffers
AR15 (16-bit ARGB 1-5-5-5) 1x1 -> AR15 (16-bit ARGB 1-5-5-5) 1x1: OK
Video Capture: Captured 8 buffers
AR15 (16-bit ARGB 1-5-5-5) 1x1 -[ AR12 (16-bit RGB 4-4-4-4) 1x1: OK
100.827052] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
AR15 (16-bit ARGB 1-5-5-5) 16383[655 5 -> BA24 (32-bit ARGB 8-8-8-8) 6383x65535: F0IL0m
.764900] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
AR15 (16-bit ARGB 1-5-5-5)[163 3x65535 -> RGB3 (24- it RGB 8-8-8) 16383x65535: AIL0[0m
2.704672] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
AR15 (16-bit ARGB 1-5-5-5) 16383x65535 -> RGBP (16-bit RGB 5-6-5) 16383x65535: FAIL
[ 103.656921] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
AR15 (16-bit ARGB 1-5-5-5) 16383x65535[-> AR15 (16-bit ARGB 1 5-5-5) 16383x65535: FAIL
104.596785] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
AR15 (16-bit ARGB 1-5-5-5) 16383x65535 -> AR12 (16-bit ARGB 4-4-4-4) 16383x65535: FAIL
Video Capture: Captured 8 buffers
AR15 (16-bit ARGB 1-5-5-5) 240x320 -> BA24 (32-bit ARGB 8-8-8-8) 240x320: OK
Video Capture: Captured 8 buffers
AR15 (16-bit ARGB 1-5-5-5) 240x320 -> RGB3 (24-bit RGB 8-8-8) 240x320: OK
Video Capture: Captured 8 buffers
AR15 (16-bit ARGB 1-5-5-5) 240x320 -> RGBP (16-bit RGB 5-6-5) 240x320: OK
Video Capture: Captured 8 buffers
AR15 (16-bit ARGB 1-5-5-5) 240x320 -> AR15 (16-bit ARGB 1-5-5-5) 240x320: OK
Video Capture: Captured 8 buffers
AR15 (16-bit ARGB 1-5-5-5) 240x320 -> AR12 (16-bit ARGB 4-4-4-4) 240x320: OK
Video Capture: Captured 8 buffers
AR12 (16-bit ARGB 4-4-4-4) 1x1 -> BA24 (32-bit ARGB 8-8-8-8) 1x1: OK
Video Capture: Captured 8 buffers
AR12 (16-bit ARGB 4-4-4-4) 1x1 -> RGB3 (24-bit RGB 8-8-8) 1x1: OK
Video Capture: Captured 8 buffers
AR12 (16-bit ARGB 4-4-4-4) 1x1 -> RGBP (16-bit RGB 5-6-5) 1x1: OK
Video Capture: Captured 8 buffers
AR12 (16-bit ARGB 4-4-4-4) 1x1 -> AR15 (16-bit ARGB 1-5-5-5) 1x1: OK
Video Capture: Captured 8 buffers
AR12 (16-bit ARGB 4-4-4-4) 1x1 -> AR12 (16-bit ARGB[4- -4-4) 1x1: OK
106.636958] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
AR12 (16-bit ARGB[4-4-4-4) 16383x65535 -> BA24 (32-bit ARGB 8 8-8-8) 16383x65535: [1;31mFAIL
107.578517] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
AR12 (16-bit ARGB 4-4-[ ) 16383x65535 1> R0B3 (24-bit RGB 8-8-88 16383x65535: FAIL
.527898] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
AR12 (16-bit ARGB 4-4-4-4) 16383x65535 -> RGBP (16-bit RGB 5-6-5) 16383x65535: FAIL
[ 109.495892] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
AR12 (16-bit ARGB 4-4-4-4) 1638[x65535 -> AR15 (16-bit ARGB 1-5-5-5) 16383x6 535: FAIL
110.449341] stm-dma2d 4002b000.dma2d: dma_alloc_coherent of size 2147323904 failed
fail: v4l2-test-buffers.cpp(1300): q.reqbufs(node, 2)
AR12 (16-bit ARGB 4-4-4-4) 16383x65535 -> AR12 (16-bit ARGB 4-4-4-4) 16383x65535: FAIL
Video Capture: Captured 8 buffers
AR12 (16-bit ARGB 4-4-4-4) 240x320 -> BA24 (32-bit ARGB 8-8-8-8) 240x320: OK
Video Capture: Captured 8 buffers
AR12 (16-bit ARGB 4-4-4-4) 240x320 -> RGB3 (24-bit RGB 8-8-8) 240x320: OK
Video Capture: Captured 8 buffers
AR12 (16-bit ARGB 4-4-4-4) 240x320 -> RGBP (16-bit RGB 5-6-5) 240x320: OK
Video Capture: Captured 8 buffers
AR12 (16-bit ARGB 4-4-4-4) 240x320 -> AR15 (16-bit ARGB 1-5-5-5) 240x320: OK
Video Capture: Captured 8 buffers
AR12 (16-bit ARGB 4-4-4-4) 240x320 -> AR12 (16-bit ARGB 4-4-4-4) 240x320: OK
Total for stm-dma2d device /dev/video0: 127, Succeeded: 102, Failed: 25, Warnings: 0

[1] Done ./v4l2-compliance -s -f -d /dev/video0
*** BLURB HERE ***

Dillon Min (9):
media: admin-guide: add stm32-dma2d description
media: dt-bindings: media: add document for STM32 DMA2d bindings
clk: stm32: Fix ltdc's clock turn off by clk_disable_unused() after
kernel startup
ARM: dts: stm32: Enable DMA2D support on STM32F429 MCU
ARM: dts: stm32: Enable DMA2D on STM32F469-DISCO board
media: v4l2-mem2mem: add v4l2_m2m_get_unmapped_area for no-mmu
platform
media: docs: add doc for the stm32 dma2d driver
media: v4l: uapi: Add user control base for stm32 dma2d controls
media: stm32-dma2d: STM32 DMA2D driver

.../admin-guide/media/platform-cardlist.rst | 1 +
.../devicetree/bindings/media/st,stm32-dma2d.yaml | 71 ++
.../userspace-api/media/drivers/index.rst | 1 +
.../userspace-api/media/drivers/stm32-uapi.rst | 22 +
arch/arm/boot/dts/stm32f429.dtsi | 10 +
arch/arm/boot/dts/stm32f469-disco.dts | 4 +
drivers/clk/clk-stm32f4.c | 7 +-
drivers/media/platform/Kconfig | 9 +
drivers/media/platform/Makefile | 1 +
drivers/media/platform/stm32/Makefile | 2 +
drivers/media/platform/stm32/dma2d/dma2d-hw.c | 143 ++++
drivers/media/platform/stm32/dma2d/dma2d-regs.h | 113 +++
drivers/media/platform/stm32/dma2d/dma2d.c | 796 +++++++++++++++++++++
drivers/media/platform/stm32/dma2d/dma2d.h | 136 ++++
drivers/media/v4l2-core/v4l2-mem2mem.c | 21 +
include/media/v4l2-mem2mem.h | 5 +
include/uapi/linux/stm32-media.h | 12 +
include/uapi/linux/v4l2-controls.h | 5 +
18 files changed, 1355 insertions(+), 4 deletions(-)
create mode 100644 Documentation/devicetree/bindings/media/st,stm32-dma2d.yaml
create mode 100644 Documentation/userspace-api/media/drivers/stm32-uapi.rst
create mode 100644 drivers/media/platform/stm32/dma2d/dma2d-hw.c
create mode 100644 drivers/media/platform/stm32/dma2d/dma2d-regs.h
create mode 100644 drivers/media/platform/stm32/dma2d/dma2d.c
create mode 100644 drivers/media/platform/stm32/dma2d/dma2d.h
create mode 100644 include/uapi/linux/stm32-media.h

--
2.7.4

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