This driver uses the SG vb2 ops, but effectively only ever accesses the
first entry of the SG table, indicating that it expects a flat layout.
Switch it to use the contiguous ops to make sure this expected invariant
is always enforced. Since the device is supposed to be behind an IOMMU
this should have little to none practical consequences beyond making the
driver not rely on a particular behavior of the SG implementation.
Reported-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
Fixes: d2b4387f3b ("media: platform: Add Aspeed Video Engine driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
When usb_clear_halt() fails, dvb->bulk_urb->transfer_buffer
and dvb->bulk_urb should be freed just like when
usb_submit_urb() fails.
Fixes: 3169c9b26f ("V4L/DVB (12788): tm6000: Add initial DVB-T support")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
When vb2_queue_init() fails, dev->empress_dev
should be released just like other error handling
paths.
Fixes: 2ada815fc4 ("[media] saa7134: convert to vb2")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
spinlock can be initialized automatically with DEFINE_SPINLOCK()
rather than explicitly calling spin_lock_init().
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Reviewed-by: Lad Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
When kzalloc() fails, em28xx_uninit_usb_xfer() will free
usb_bufs->buf and set it to NULL. Thus the later access
to usb_bufs->buf[i] will lead to null pointer dereference.
Also the kfree(usb_bufs->buf) after that is redundant.
Fixes: d571b592c6 ("media: em28xx: don't use coherent buffer for DMA transfers")
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Comment has 'then' repeated twice. Let's clean it up.
Use unsigned int to maintain naming consistency.
Signed-off-by: Nigel Christian <nigel.l.christian@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
These entries can only ever be single bits. Make use of the BIT macro
accordingly.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Implement the VIDIOC_SUBDEV_ENUM_FRAME_SIZE ioctl for the isp entity,
check if the mbus code is valid for the given pad.
This call is not available for the parameter or metadata pads of the
RkISP1.
Signed-off-by: Sebastian Fricke <sebastian.fricke.linux@gmail.com>
Acked-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Since commit 4c62e9764a ("Drivers: media: remove __dev*
attributes.") in v3.8, the SuperH Video Output Unit driver no longer has
any code or data located in initmem, hence there is no need to annotate
the sh_vou structure with __refdata. Drop the annotation, to avoid
suppressing future section warnings.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Commit aa821b2b92 ("media: MAINTAINERS: Add myself as maintainer of the
Amlogic GE2D driver") introduced a new MAINTAINERS section, but the file
entry points to the wrong location.
Hence, ./scripts/get_maintainer.pl --self-test=patterns warns:
warning: no file matches F: drivers/media/meson/ge2d/
Adjust the entry to the actual location of the driver.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This error path returns success but it should return -EINVAL.
Fixes: cba3819d1e ("media: camss: Format configuration per hardware version")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This test has a problem because we want to know if "k" is -1 or a
positive value less than "f->index". But the "f->index" variable is a
u32 so if "k == -1" then -1 gets type promoted to UINT_MAX which is
larger than "f->index". I've added an explicit test to check for -1.
Fixes: a3d412d4b9 ("media: Revert "media: camss: Make use of V4L2_CAP_IO_MC"")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Reviewed-by: Andrey Konovalov <andrey.konovalov@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Corrected the following Warning:
drivers/staging/media/rkvdec/rkvdec.c:133: WARNING: Possible comma where semicolon could be used
Signed-off-by: Travis Carter <traviscarter2@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Corrected the following Warning:
drivers/staging/media/hantro/hantro_v4l2.c:319: WARNING: Possible comma where semicolon could be used
Signed-off-by: Travis Carter <traviscarter2@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.
Fixes: dea42fb79f ("media: mtk-vcodec: reset segment data then trig decoder")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
FIELD_GET() must only be used with a mask that is a compile-time
constant:
drivers/media/platform/ti-vpe/cal.h: In function 'cal_read_field':
include/linux/compiler_types.h:320:38: error: call to '__compiletime_assert_247' declared with attribute error: FIELD_GET: mask is not constant
include/linux/bitfield.h:46:3: note: in expansion of macro 'BUILD_BUG_ON_MSG'
46 | BUILD_BUG_ON_MSG(!__builtin_constant_p(_mask), \
| ^~~~~~~~~~~~~~~~
drivers/media/platform/ti-vpe/cal.h:220:9: note: in expansion of macro 'FIELD_GET'
220 | return FIELD_GET(mask, cal_read(cal, offset));
| ^~~~~~~~~
The problem here is that the function is not always inlined. Mark it
__always_inline to avoid the problem.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Remove MODULE_VERSION(), as it doesn't seem to serve any practical purpose.
For in-tree drivers, the kernel version matters. The code received lots of
changes, but module version remained constant, since the driver landed in
mainline. So, this version doesn't seem have any practical meaning anymore.
Signed-off-by: Enrico Weigelt <info@metux.net>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
No locking is needed to call video_unregister_device(). Drop it.
Also, drop the superfluous video_is_registered() call, which is
done by video_unregister_device(), and re-order media_entity_cleanup()
and video_unregister_device() calls.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The csc/scaler device private struct is released by
ipu_csc_scaler_video_device_release(), which can be called
by video_unregister_device() if there are no users
of the underlying struct video device.
Therefore, the mutex can't be held when calling
video_unregister_device() as its memory may be freed
by it, leading to a kernel oops.
Fortunately, the fix is quite simple as no locking
is needed when calling video_unregister_device(): v4l2-core
already has its own internal locking, and the structures
are also properly refcounted.
Fixes: a8ef0488cc ("media: imx: add csc/scaler mem2mem device")
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The csc/scaler device pointer (imxmd->m2m_vdev) is assigned
after the imx media device v4l2-async probe completes,
therefore we need to check if the device is non-NULL
before trying to unregister it.
This can be the case if the non-completed imx media device
is unbinded (or the driver is removed), leading to a kernel oops.
Fixes: a8ef0488cc ("media: imx: add csc/scaler mem2mem device")
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
As described in NXPs' linux tree, the imx8m SoC includes the same
CSI bridge hardware that is part of imx7d. We should be able to
use the "fsl,imx7-csi" driver for imx8m directly.
Since ipuv3 is not relevant for imx8m, move that dependency to
VIDEO_IMX_CSI. That makes VIDEO_IMX7_CSI available to support imx8m
too.
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
struct device is used in ccs-data.h but no definition is included. Add a
forward definition.
Also ccs-data.c includes linux/types.h but this is already included in
ccs-data.h which ccs-data.c includes. Do don't include linux/types.h in
ccs-data.c.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This reverts commit b3c0115e34.
As per Documentation/process/license-rules.rst "GPL v2" exists only for
historical reasons and has the same meaning as "GPL". So revert this
patch.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The preferred integer types in the kernel are the Linux specific ones,
switch from standard C types to u32 and alike.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The preferred integer types in the kernel are the Linux specific ones,
switch from standard C types to u32 and alike.
The patch has been produced with the following Coccinelle spatch, with few
alignment adjustments:
@@
typedef uint32_t;
typedef u32;
@@
- uint32_t
+ u32
@@
typedef uint16_t;
typedef u16;
@@
- uint16_t
+ u16
@@
typedef uint8_t;
typedef u8;
@@
- uint8_t
+ u8
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Include existing CCS PLL calculator kerneldoc documentation to the
documentation build.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
CCS supports three variants of PHY timing control, auto, UI based and
manual. The driver previously assumed UI based control that requires
updating the link rate to the sensor. Now default to automatic control
instead, and only write the link rate to the sensor in UI mode.
If neither auto or UI control is supported, return an error in probe.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The driver depends on the external clock frequency. Add a sanity check for
the frequency, by returning an error from probe if it's zero.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
A CCS compliant device requires a delay before the first I²C transaction
after pulling xshutdown up or starting the external clock. This is what
the driver does. However, if neither is actually there, there's no need
for the delay.
This also has the effect of removing an unnecessary delay on ACPI systems
where ACPI is responsible for the power-up sequence.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Verify the software reset has been completed until proceeding.
The spec does not guarantee a delay but presumably 100 ms should be
enough.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The driver always used software reset after the sensor's power sequence
that includes a hardware reset if we have a reset GPIO. Do not use
software reset if we just brought the sensor up from hardware reset state.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The sensor's address was changed before resetting and changing the
address again. Don't do it before reset as it's useless.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Get the first endpoint from port 0 instead of the next one, whatever it
might be. There are no other ports so there's no functional change.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add V4L2 controls for controlling CCS lens shading correction as well as
conveying its capabilities.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Also print out MSR registers written to the sensor. This isn't entirely
optimal as the debug strings are produced even if they're not used but
that isn't really a grave issue --- the I²C bus is very slow anyway.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The CCS spec defines an alternative implementation for global analogue
gain. Add support for that in the driver.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add two new controls for alternative analogue gain some CCS compliant
camera sensors support.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add four controls for reading CCS analogue gain coefficients. The
values are constants that are device specific.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add V4L2 controls for analogue gain constants required to control
analogue gain. The values are device specific and thus need to be obtained
from the driver.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add user documentation for the CCS driver. This includes e.g. sub-devices
implemented by the driver.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Add a control base for CCS controls, and reserve 128 controls. Luckily
these numbers are cheap.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Some devices do not implement analogue gain this way. Only add the control
when a device does have the support.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
The analogue gain control was stored to the device specific struct but was
never used. Remove it.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
SMIA only has per-component digital gain. Add support for it.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
CCS supports global (all-component) digital gain. Add support for it.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Drivers don't need to explicitly call devm_{}_put on driver
removal, as it's automatically called by the device driver
resource management code.
Fixes: aab7ed1c39 ("media: i2c: Add driver for Aptina MT9V111")
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
