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path: root/drivers/media/platform/mtk-jpeg
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2021-03-22media: mtk-jpeg/mtk_jpeg_core.h: fix kernel-doc warningsHans Verkuil
Add missing 'struct' keywords and fix typos in two struct member names. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Cc: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-11-16media: platform: add missing put_device() call in mtk_jpeg_probe() and ↵Yu Kuai
mtk_jpeg_remove() if mtk_jpeg_clk_init() succeed, mtk_jpeg_probe() and mtk_jpeg_remove() doesn't have a corresponding put_device(). Thus add a new helper mtk_jpeg_clk_release() to fix it. Fixes: b2f0d2724ba4 ("[media] vcodec: mediatek: Add Mediatek JPEG Decoder Driver") Signed-off-by: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-11-16media: platform: add missing put_device() call in mtk_jpeg_clk_init()Yu Kuai
if of_find_device_by_node() succeeds, mtk_jpeg_clk_init() doesn't have a corresponding put_device(). Thus add put_device() to fix the exception handling for this function implementation. Fixes: 648372a87cee ("media: platform: Change the call functions of getting/enable/disable the jpeg's clock") Signed-off-by: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Add jpeg enc featureXia Jiang
Add mtk jpeg encode v4l2 driver based on jpeg decode, because that jpeg decode and encode have great similarities with function operation. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Using the variant structure to contain the varability ↵Xia Jiang
between dec and enc Add varability which would be used between jpeg dec and enc to a match data structure, it will make the code linear. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Rename existing functions/defines/variablesXia Jiang
Rename existing functions/defines/variables with a _dec prefix and without dec_ prefix to prepare for the addition of the jpeg encoder feature. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Rename jpeg dec file nameXia Jiang
Rename the files which are for decode feature. This is preparing path since the jpeg enc patch will be added later. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Change the call functions of getting/enable/disable the ↵Xia Jiang
jpeg's clock Use the generic clk_bulk_* helpers to enable and disable clocks. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Refactor mtk_jpeg_set_default_params()Xia Jiang
Call mtk_jpeg_try_fmt_mplane() to replace the original computation of sizeimage and bytesperline, because that mtk_jpeg_try_fmt_mplane() already did it. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Change the colorspace of jpeg to the fixed valueXia Jiang
Jpeg doesn't support colorspace conversion, so it shouldn't accept any other colorspace in S_FMT. Change the colorspace of jpeg to the fixed value. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Redefinition of mtk_jpeg_q_data structureXia Jiang
The standard v4l2_pix_format_mplane structure contains width/height/ sizeimage/bytesperline, so use v4l2_pix_format_mplane to replace them. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Refactor mtk_jpeg_find_format()Xia Jiang
Delete the unused ctx parameter. Using mtk_jpeg_formats and num_formats parameters is more generic, because that jpeg enc will also use it. Delete the macro definition of MTK_JPEG_FMT_TYPE_OUTPUT and MTK_JPEG_FMT_TYPE_CAPTURE, because that MTK_JPEG_FMT_FLAG_DEC_OUTPUT and MTK_JPEG_FMT_FLAG_DEC_CAPTURE are enough. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Refactor mtk_jpeg_try_fmt_mplane()Xia Jiang
The function of mtk_jpeg_adjust_fmt_mplane() equals mtk_jpeg_g_fmt_vid_mplane(), so use mtk_jpeg_g_fmt_vid_mplane() to replace it . Delete the unused ctx parameter. Using fourcc to distinguish between different formats is more generic, because that jpeg enc will also use it. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Change the maximum width and height supported by JPEG decXia Jiang
The maximum width and height supported by JPEG dec is 65535, so change them from 8192 to 65535. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Delete vidioc_s_selection ioctl of jpeg decXia Jiang
JPEG dec does't support setting a compose rectangle, so remove mtk_jpeg_dec_s_selection(). Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Delete redundant code and add annotation for an enumXia Jiang
Delete unused member variables annotation. Delete unused variable definition. Delete redundant log print, because V4L2 debug logs already print it. Add annotation for enum mtk_jpeg_ctx_state. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Change MTK_JPEG_COMP_MAX macro definition locationXia Jiang
Move MTK_JPEG_COMP_MAX definition to mtk_jpeg_core.h file, because it is used by mtk_jpeg_core.c file. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Use generic rounding helpersXia Jiang
Use clamp() to replace mtk_jpeg_bound_align_image() and round() to replace mtk_jpeg_align(). Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Stylistic changes for improving code qualityXia Jiang
Change register offset hex numerals from uppercase to lowercase. Change data type of max/min width/height from integer to unsigned integer. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Delete zeroing the reserved fieldsXia Jiang
Delete zeroing the reserved fields because that the core already does it. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Cancel the last frame handling flowXia Jiang
There is no need to queue an empty buffer for signaling a last frame, because all frames are separate from each other in JPEG. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Add mechanism to handle jpeg hardware's locking upXia Jiang
There is a delayed work scheduled before starting the hardware and canceled in the interrupt handler. If the delayed work is executed, it resets the hardware and reports the failure to V4L2, so that the execution can continue from next frames. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Improve the implementation of the system PM opsXia Jiang
Add v4l2_m2m_suspend() function call in mtk_jpeg_suspend() to make sure that the current frame is processed completely before suspend. Add v4l2_m2m_resume() function call in mtk_jpeg_resume() to unblock the driver from scheduling next frame. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Delete the resetting hardware flow in the system PM opsXia Jiang
Delete the resetting hardware flow in suspend and resume function because that resetting operation will be done in device_run(). Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Improve power on and power off flowXia Jiang
Call pm_runtime_get_sync() before starting a frame and then pm_runtime_put() after completing it. This can save power for the time between processing two frames. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Change the fixed device node number to unfixed valueXia Jiang
The driver can be instantiated multiple times, e.g. for a decoder and an encoder. Moreover, other drivers could coexist on the same system. This makes the static video node number assignment pointless, so switch to automatic assignment instead. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Improve getting and requesting irq flow for bug fixingXia Jiang
Delete platform_get_resource operation for irq. Return actual value rather than EINVAL when fail to get and request irq. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Improve queue set up flow for bug fixingXia Jiang
Add checking created buffer size follow in mtk_jpeg_queue_setup(). Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-08-28media: platform: Improve subscribe event flow for bug fixingXia Jiang
Let v4l2_ctrl_subscribe_event() do the job for other types except V4L2_EVENT_SOURCE_CHANGE. Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Xia Jiang <xia.jiang@mediatek.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-07-19media: Add V4L2_TYPE_IS_CAPTURE helperEzequiel Garcia
It's all too easy to get confused by the V4L2_TYPE_IS_OUTPUT macro, when it's used as !V4L2_TYPE_IS_OUTPUT. Reduce the risk of confusion with macro to explicitly check for the CAPTURE queue type case. This change does not affect functionality, and it's only intended to make the code more readable. Suggested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil-cisco@xs4all.nl: checkpatch: align with parenthesis] Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-02-24media: media/platform: rename VFL_TYPE_GRABBER to _VIDEOHans Verkuil
'GRABBER' is a weird name, all other types map to the /dev device names. Rename to 'VIDEO' to be consistent with the other types. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2019-06-21media: mtk-jpeg: Use vb2_get_bufferEzequiel Garcia
Use the newly introduced vb2_get_buffer API and avoid accessing buffers in the queue directly. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-06-11Merge tag 'v5.2-rc4' into media/masterMauro Carvalho Chehab
There are some conflicts due to SPDX changes. We also have more patches being merged via media tree touching them. So, let's merge back from upstream and address those. Linux 5.2-rc4 * tag 'v5.2-rc4': (767 commits) Linux 5.2-rc4 MAINTAINERS: Karthikeyan Ramasubramanian is MIA i2c: xiic: Add max_read_len quirk lockref: Limit number of cmpxchg loop retries uaccess: add noop untagged_addr definition x86/insn-eval: Fix use-after-free access to LDT entry kbuild: use more portable 'command -v' for cc-cross-prefix s390/unwind: correct stack switching during unwind block, bfq: add weight symlink to the bfq.weight cgroup parameter cgroup: let a symlink too be created with a cftype file drm/nouveau/secboot/gp10[2467]: support newer FW to fix SEC2 failures on some boards drm/nouveau/secboot: enable loading of versioned LS PMU/SEC2 ACR msgqueue FW drm/nouveau/secboot: split out FW version-specific LS function pointers drm/nouveau/secboot: pass max supported FW version to LS load funcs drm/nouveau/core: support versioned firmware loading drm/nouveau/core: pass subdev into nvkm_firmware_get, rather than device block: free sched's request pool in blk_cleanup_queue pktgen: do not sleep with the thread lock held. net: mvpp2: Use strscpy to handle stat strings net: rds: fix memory leak in rds_ib_flush_mr_pool ... Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-06-05media: v4l2: Get rid of ->vidioc_enum_fmt_vid_{cap, out}_mplaneBoris Brezillon
Support for multiplanar and singleplanar formats is mutually exclusive, at least in practice. In our attempt to unify support for support for mplane and !mplane in v4l, let's get rid of the ->vidioc_enum_fmt_{vid,out}_cap_mplane() hooks and call ->vidioc_enum_fmt_{vid,out}_cap() instead. Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> [hverkuil-cisco@xs4all.nl: fix typos: pirv -> priv and prov -> priv] Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174Thomas Gleixner
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-18media: mtk-jpeg: Correct return type for mem2mem buffer helpersEzequiel Garcia
Fix the assigned type of mem2mem buffer handling API. Namely, these functions: v4l2_m2m_next_buf v4l2_m2m_last_buf v4l2_m2m_buf_remove v4l2_m2m_next_src_buf v4l2_m2m_next_dst_buf v4l2_m2m_last_src_buf v4l2_m2m_last_dst_buf v4l2_m2m_src_buf_remove v4l2_m2m_dst_buf_remove return a struct vb2_v4l2_buffer, and not a struct vb2_buffer. Fixing this is necessary to fix the mem2mem buffer handling API, changing the return to the correct struct vb2_v4l2_buffer instead of a void pointer. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-11media: use strscpy() instead of strlcpy()Mauro Carvalho Chehab
The implementation of strscpy() is more robust and safer. That's now the recommended way to copy NUL terminated strings. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-24media: mem2mem: Make .job_abort optionalEzequiel Garcia
Implementing job_abort() does not make sense on some drivers. This is not a problem, as the abort is not required to wait for the job to finish. Quite the opposite, drivers are encouraged not to wait. Demote v4l2_m2m_ops.job_abort from required to optional, and clean all drivers with dummy implementations. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-09media: vcodec: fix ptr_ret.cocci warningsFengguang Wu
drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c:1087:1-3: WARNING: PTR_ERR_OR_ZERO can be used Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR Generated by: scripts/coccinelle/api/ptr_ret.cocci Fixes: 648a9576932a ("media: vcodec: fix error return value from mtk_jpeg_clk_init()") CC: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-04-04media: vcodec: fix error return value from mtk_jpeg_clk_init()Ryder Lee
The error return value should be fixed as it may return EPROBE_DEFER. Cc: Bin Liu <bin.liu@mediatek.com> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Acked-by: Rick Chang <rick.chang@mediatek.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20media: vcodec: mediatek: constify v4l2_m2m_ops structuresJulia Lawall
The v4l2_m2m_ops structures are only passed as the only argument to v4l2_m2m_init, which is declared as const. Thus the v4l2_m2m_ops structures themselves can be const. Done with the help of Coccinelle. // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct v4l2_m2m_ops i@p = { ... }; @ok1@ identifier r.i; position p; @@ v4l2_m2m_init(&i@p) @bad@ position p != {r.p,ok1.p}; identifier r.i; struct v4l2_m2m_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct v4l2_m2m_ops i = { ... }; // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Rick Chang <rick.chang@mediatek.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-19media: mediatek: constify vb2_ops structureGustavo A. R. Silva
Check for vb2_ops structures that are only stored in the ops field of a vb2_queue structure. That field is declared const, so vb2_ops structures that have this property can be declared as const also. This issue was detected using Coccinelle and the following semantic patch: @r disable optional_qualifier@ identifier i; position p; @@ static struct vb2_ops i@p = { ... }; @ok@ identifier r.i; struct vb2_queue e; position p; @@ e.ops = &i@p; @bad@ position p != {r.p,ok.p}; identifier r.i; struct vb2_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct vb2_ops i = { ... }; Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-10[media] vcodec: mediatek: mark pm functions as __maybe_unusedArnd Bergmann
When CONFIG_PM is disabled, we get a couple of unused functions: drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c:927:13: error: 'mtk_jpeg_clk_off' defined but not used [-Werror=unused-function] static void mtk_jpeg_clk_off(struct mtk_jpeg_dev *jpeg) ^~~~~~~~~~~~~~~~ drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c:916:13: error: 'mtk_jpeg_clk_on' defined but not used [-Werror=unused-function] static void mtk_jpeg_clk_on(struct mtk_jpeg_dev *jpeg) Rather than adding more error-prone #ifdefs around those, this patch removes the existing #ifdef checks and marks the PM functions as __maybe_unused to let gcc do the right thing. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Rick Chang <rick.chang@mediatek.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-05[media] media: mtk-jpeg: fix continuous log "Context is NULL"Minghsiu Tsai
The symptom is continuous log "mtk-jpeg 18004000.jpegdec: Context is NULL" in kernel log. It is because the error handling in irq doesn't clear interrupt. The calling flow like as below when issue happen mtk_jpeg_device_run() mtk_jpeg_job_abort() v4l2_m2m_job_finish() -> m2m_dev->curr_ctx = NULL; mtk_jpeg_dec_irq() v4l2_m2m_get_curr_priv() -> m2m_dev->curr_ctx == NULL -> return NULL log "Context is NULL" There is race condition between job_abort() and irq. In order to simplify code, don't want to add extra flag to maintain state, empty job_abort() and clear interrupt before v4l2_m2m_get_curr_priv() in irq. Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com> Acked-by: Rick Chang <rick.chang@mediatek.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-03-22[media] vcodec: mediatek: fix platform_no_drv_owner.cocci warningsFengguang Wu
drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c:1296:3-8: No need to set .owner here. The core will do it. Remove .owner field if calls are used which set it automatically Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci CC: Rick Chang <rick.chang@mediatek.com> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-03-22[media] media/platform/mtk-jpeg: add slab.h to fix build errorsRandy Dunlap
Include <linux/slab.h> to fix these build errors: ../drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c: In function 'mtk_jpeg_open': ../drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c:1017:2: error: implicit declaration of function 'kzalloc' [-Werror=implicit-function-declaration] ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); ../drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c:1017:6: warning: assignment makes pointer from integer without a cast [enabled by default] ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); ../drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c:1047:2: error: implicit declaration of function 'kfree' [-Werror=implicit-function-declaration] kfree(ctx); Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com> Cc: Rick Chang <rick.chang@mediatek.com> Cc: Bin Liu <bin.liu@mediatek.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-03-03[media] vcodec: mediatek: Add Mediatek JPEG Decoder DriverRick Chang
Add v4l2 driver for Mediatek JPEG Decoder Signed-off-by: Rick Chang <rick.chang@mediatek.com> Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com> Reviewed-by: Ricky Liang <jcliang@chromium.org> Tested-by: Ricky Liang <jcliang@chromium.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-05 09:41:24 +0000