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Date: Wed, 22 Nov 2023 08:39:14 +0100
From: Alain Volmat <alain.volmat@...s.st.com>
To: Hugues Fruchet <hugues.fruchet@...s.st.com>,
Alain Volmat <alain.volmat@...s.st.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Russell King <linux@...linux.org.uk>,
Philipp Zabel <p.zabel@...gutronix.de>
CC: Sakari Ailus <sakari.ailus@...ux.intel.com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Dan Scally <dan.scally@...asonboard.com>,
<linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-stm32@...md-mailman.stormreply.com>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH v8 0/5] Add support for DCMIPP camera interface of STMicroelectronics STM32 SoC series
This patchset introduces support for Digital Camera Memory Interface
Pixel Processor (DCMIPP) of STMicroelectronics STM32 SoC series.
This initial support implements a single capture pipe
allowing RGB565, YUV, Y, RAW8 and JPEG capture with
frame skipping, prescaling and cropping.
DCMIPP is exposed through 3 subdevices:
- dcmipp_dump_parallel: parallel interface handling
- dcmipp_dump_postproc: frame skipping, prescaling and cropping control
- dcmipp_dump_capture: video device capture node
v8:
- serie rebased on top of master branch of tree sailus/media_tree.git
in order to use v4l2_subdev_state_* functions
v7:
- correct byteproc set_fmt handling and compose/crop/fmt handling
- replace few v4l2_subdev_get_try_* into v4l2_subdev_get_pad_*
- correct ordering within dcmipp_remove
v6:
- correct copyright year in all files
- correct Kconfig (removal of OF addition of select
VIDEO_V4L2_SUBDEV_API/MEDIA_CONTROLLER
- add missing mutex_destroy in error handling
- rely on fwnode_graph_get_endpoint_by_id instead of fwnode_graph_get_next_endpoint
- rely on device_get_match_data instead of of_device_get_match_data
- use local variable for pads_flag initialization
v5:
- removal of dcmipp_frame_size & dcmipp_frame_stride and use
v4l2_fill_pixfmt
- correct typos & avoid check of available buffer at start_streaming
time since this is done by vb2 framework
- avoid set of pad format in dcmipp_par_ent_init and
dcmipp_byteproc_ent_init since done via init_cfg
- reorder bound functions
- use v4l2_subdev_get_fmt in parallel and byteproc subdevs
- correct struct dcmipp_ent_device comments
- removal of dcmipp_hdw_pixel_alignment in bytecap subdev since not
applicable in this byte mode pipeline
v4:
- rework of mutex / spinlock handling
- addition of dma mask setting
- removal of __maybe_unused, use pm_ptr and new declaration macros
- driver now only generate a single stm32-dcmipp.ko module instead of
several as before
- removal of the component framework usage
- various small fixes (function names, lowercase values, indentation,
print formats)
- register name removal in register access function, only dev_dbg with
address & values are kept
- removal of VB2_READ and CAP_READWRITE
- usage of subdev active state mechanism and removal of locally stored
format/compose/crop
- addition of port { } within the stm32mp135.dtsi
v3:
- Have same To & Cc in all patches emails of the serie so that everybody
has coherent view of the serie
- bindings: correct wording, clock-names & label removal
- driver: replace of_graph call with fwnode_graph
- driver: use defined bus-type when calling v4l2_fwnode_endpoint_parse
- driver: remove clock name
- dtsi: remove clock-names property
v2:
- removal of pclk-max-frequency from yaml example dts
- codying-style fixes
- correction in enum functions (format, mbus, frame_size ...) handling
- drop of v4l2_pipeline_pm_ calls, and specific open/close handler of
vdev
- video dev s_stream handling updated to call s_stream of remote subdev
instead of loop until sensor subdev
- code update following media_pipeline & v4l2_async_ api changes since v1
- removal of IP reset call upon error
- removal of link_validate handlers
- addition of V4L2_CAP_IO_MC device_caps
- removal of the frame skip control for the time being, will be added
back in another commit once control method will be agreed
- change byteproc entity type to MEDIA_ENT_F_PROC_VIDEO_SCALER
- various fixes from Dan & Sakari remarks
Alain Volmat (2):
dt-bindings: media: add bindings for stm32 dcmipp
media: MAINTAINERS: add entry for STM32 DCMIPP driver
Hugues Fruchet (3):
media: stm32-dcmipp: STM32 DCMIPP camera interface driver
ARM: dts: stm32: add dcmipp support to stm32mp135
ARM: multi_v7_defconfig: enable STM32 DCMIPP media support
.../bindings/media/st,stm32-dcmipp.yaml | 89 ++
MAINTAINERS | 5 +-
arch/arm/boot/dts/st/stm32mp135.dtsi | 11 +
arch/arm/configs/multi_v7_defconfig | 1 +
drivers/media/platform/st/stm32/Kconfig | 16 +
drivers/media/platform/st/stm32/Makefile | 1 +
.../platform/st/stm32/stm32-dcmipp/Makefile | 4 +
.../st/stm32/stm32-dcmipp/dcmipp-bytecap.c | 914 ++++++++++++++++++
.../st/stm32/stm32-dcmipp/dcmipp-byteproc.c | 565 +++++++++++
.../st/stm32/stm32-dcmipp/dcmipp-common.c | 106 ++
.../st/stm32/stm32-dcmipp/dcmipp-common.h | 216 +++++
.../st/stm32/stm32-dcmipp/dcmipp-core.c | 604 ++++++++++++
.../st/stm32/stm32-dcmipp/dcmipp-parallel.c | 440 +++++++++
13 files changed, 2971 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/media/st,stm32-dcmipp.yaml
create mode 100644 drivers/media/platform/st/stm32/stm32-dcmipp/Makefile
create mode 100644 drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c
create mode 100644 drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-byteproc.c
create mode 100644 drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-common.c
create mode 100644 drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-common.h
create mode 100644 drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-core.c
create mode 100644 drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-parallel.c
--
2.25.1
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