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Commit Graph

753473 Commits

Author SHA1 Message Date
Kieran Bingham
12832dd9dd media: vsp1: Adapt entities to configure into a body
Currently the entities store their configurations into a display list.
Adapt this such that the code can be configured into a body directly,
allowing greater flexibility and control of the content.

All users of vsp1_dl_list_write() are removed in this process, thus it
too is removed.

A helper, vsp1_dl_list_get_body0() is provided to access the internal body0
from the display list.

[laurent.pinchart+renesas@ideasonboard.com: Don't remove blank line unnecessarily]

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 19:04:35 -04:00
Kieran Bingham
46ce3639a5 media: vsp1: Refactor display list configure operations
The entities provide a single .configure operation which configures the
object into the target display list, based on the vsp1_entity_params
selection.

Split the configure function into three parts, '.configure_stream()',
'.configure_frame()', and '.configure_partition()' to facilitate
splitting the configuration of each parameter class into separate
display list bodies.

[laurent.pinchart+renesas@ideasonboard.com: Blank line reformatting, remote unneeded local variable initialization]

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 19:03:16 -04:00
Kieran Bingham
2d9445db0e media: vsp1: Use reference counting for bodies
Extend the display list body with a reference count, allowing bodies to
be kept as long as a reference is maintained. This provides the ability
to keep a cached copy of bodies which will not change, so that they can
be re-applied to multiple display lists.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 18:43:53 -04:00
Kieran Bingham
5d7936b8e2 media: vsp1: Convert display lists to use new body pool
Adapt the dl->body0 object to use an object from the body pool. This
greatly reduces the pressure on the TLB for IPMMU use cases, as all of
the lists use a single allocation for the main body.

The CLU and LUT objects pre-allocate a pool containing three bodies,
allowing a userspace update before the hardware has committed a previous
set of tables.

Bodies are no longer 'freed' in interrupt context, but instead released
back to their respective pools. This allows us to remove the garbage
collector in the DLM.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 18:42:46 -04:00
Kieran Bingham
5de0473982 media: vsp1: Provide a body pool
Each display list allocates a body to store register values in a dma
accessible buffer from a dma_alloc_wc() allocation. Each of these
results in an entry in the IOMMU TLB, and a large number of display list
allocations adds pressure to this resource.

Reduce TLB pressure on the IPMMUs by allocating multiple display list
bodies in a single allocation, and providing these to the display list
through a 'body pool'. A pool can be allocated by the display list
manager or entities which require their own body allocations.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 18:41:54 -04:00
Kieran Bingham
0766734197 media: vsp1: Protect bodies against overflow
The body write function relies on the code never asking it to write more
than the entries available in the list.

Currently with each list body containing 256 entries, this is fine, but
we can reduce this number greatly saving memory. In preparation of this
add a level of protection to catch any buffer overflows.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 18:40:19 -04:00
Kieran Bingham
764dfee1a1 media: vsp1: Reword uses of 'fragment' as 'body'
Throughout the codebase, the term 'fragment' is used to represent a
display list body. This term duplicates the 'body' which is already in
use.

The datasheet references these objects as a body, therefore replace all
mentions of a fragment with a body, along with the corresponding
pluralised terms.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 18:39:54 -04:00
Kieran Bingham
fce34e49e4 media: vsp1: Move video suspend resume handling to video object
The suspend and resume handlers are only utilised by video pipelines,
yet the functions currently reside in the vsp1_pipe object.

This causes an issue with resume, as the functions incorrectly call
vsp1_pipeline_run() directly instead of processing the video object
through vsp1_video_pipeline_run().

Move the functions to the video object, renaming accordingly and update
the resume handler to call vsp1_video_pipeline_run() as appropriate.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 18:37:32 -04:00
Kieran Bingham
83967993f2 media: vsp1: Release buffers for each video node
Commit 372b2b0399 ("media: v4l: vsp1: Release buffers in
start_streaming error path") introduced a helper to clean up buffers on
error paths, but inadvertently changed the code such that only the
output WPF buffers were cleaned, rather than the video node being
operated on.

Since then vsp1_video_cleanup_pipeline() has grown to perform both video
node cleanup, as well as pipeline cleanup. Split the implementation into
two distinct functions that perform the required work, so that each
video node can release its buffers correctly on streamoff. The pipe
cleanup that was performed in the vsp1_video_stop_streaming() (releasing
the pipe->dl) is moved to the function for clarity.

Fixes: 372b2b0399 ("media: v4l: vsp1: Release buffers in start_streaming error path")

Cc: stable@vger.kernel.org # v4.14+
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 18:37:27 -04:00
Geert Uytterhoeven
01f7b2e726 media: vsp1: Drop OF dependency of VIDEO_RENESAS_VSP1
VIDEO_RENESAS_VSP1 depends on ARCH_RENESAS && OF.
As ARCH_RENESAS implies OF, the latter can be dropped.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 18:37:22 -04:00
Hans Verkuil
3c785e4878 media: adv7511: fix clearing of the CEC receive buffer
The CEC receive buffer was not always cleared correctly. The
datasheet was a bit confusing since sometimes it mentioned that the
bit in CEC register 0x4a had to be toggled, and sometimes it suggested
it was a 'Clear-on-write' bit. But it really needs to be toggled.

The patch also enables/disables the CEC irqs after the other irq are
enabled/disabled instead of doing it before. It may not matter, but it
feels more logical to do it in that order, and the implementation that
we (Cisco) have used until now and that is known to be reliable also
did it in that order.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 18:37:20 -04:00
Fabien Dessenne
72c7caa486 media: st-hva: don't use GFP_DMA
Set the DMA_MASK and stop using the GFP_DMA flag

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:35:41 -04:00
Fabien Dessenne
2732bb765f media: bdisp: don't use GFP_DMA
Set the DMA_MASK and stop using the GFP_DMA flag

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:35:19 -04:00
Hans Verkuil
6aecad6267 media: cec: improve cec status documentation
Clarify the description of status bits, particularly w.r.t. ERROR and NACK.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:34:50 -04:00
Hans Verkuil
df2b238618 media: soc_camera: fix compiler warning
In function 'strncpy',
    inlined from 'soc_camera_platform_probe' at drivers/media/platform/soc_camera/soc_camera_platform.c:162:2:
include/linux/string.h:246:9: warning: '__builtin_strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
  return __builtin_strncpy(p, q, size);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:34:04 -04:00
Hans Verkuil
660f059782 media: renesas-ceu: fix compiler warning
In function 'strncpy',
    inlined from 'ceu_notify_complete' at drivers/media/platform/renesas-ceu.c:1378:2:
include/linux/string.h:246:9: warning: '__builtin_strncpy' output truncated before terminating nul copying 11 bytes from a string of the same length [-Wstringop-truncation]
  return __builtin_strncpy(p, q, size);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:33:34 -04:00
Hans Verkuil
bcab64e876 media: imx: fix compiler warning
drivers/staging/media/imx/imx-media-capture.c: In function 'vidioc_querycap':
drivers/staging/media/imx/imx-media-capture.c:76:2: warning: 'strncpy' output truncated copying 15 bytes from a string of length 17 [-Wstringop-truncation]
  strncpy(cap->driver, "imx-media-capture", sizeof(cap->driver) - 1);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:33:14 -04:00
Hans Verkuil
b37705d333 media: hdpvr: fix compiler warning
In function 'strncpy',
    inlined from 'vidioc_g_audio' at media-git/drivers/media/usb/hdpvr/hdpvr-video.c:876:2:
media-git/include/linux/string.h:246:9: warning: '__builtin_strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
  return __builtin_strncpy(p, q, size);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:31:23 -04:00
Hans Verkuil
fd1857240d media: s5p-mfc: fix two sparse warnings
media-git/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c: In function 'vidioc_querycap':
media-git/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c:1317:2: warning: 'strncpy' output may be truncated copying 31 bytes from a string of length 31 [-Wstringop-truncation]
  strncpy(cap->card, dev->vfd_enc->name, sizeof(cap->card) - 1);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
media-git/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c: In function 'vidioc_querycap':
media-git/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c:275:2: warning: 'strncpy' output may be truncated copying 31 bytes from a string of length 31 [-Wstringop-truncation]
  strncpy(cap->card, dev->vfd_dec->name, sizeof(cap->card) - 1);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:31:00 -04:00
Hans Verkuil
ba17f7805f media: zoran: fix compiler warning
In file included from media-git/include/linux/bitmap.h:9,
                 from media-git/include/linux/cpumask.h:12,
                 from media-git/arch/x86/include/asm/cpumask.h:5,
                 from media-git/arch/x86/include/asm/msr.h:11,
                 from media-git/arch/x86/include/asm/processor.h:21,
                 from media-git/arch/x86/include/asm/cpufeature.h:5,
                 from media-git/arch/x86/include/asm/thread_info.h:53,
                 from media-git/include/linux/thread_info.h:38,
                 from media-git/arch/x86/include/asm/preempt.h:7,
                 from media-git/include/linux/preempt.h:81,
                 from media-git/include/linux/spinlock.h:51,
                 from media-git/include/linux/seqlock.h:36,
                 from media-git/include/linux/time.h:6,
                 from media-git/include/linux/stat.h:19,
                 from media-git/include/linux/module.h:10,
                 from media-git/drivers/staging/media/zoran/zoran_driver.c:44:
In function 'strncpy',
    inlined from 'zoran_querycap' at media-git/drivers/staging/media/zoran/zoran_driver.c:1512:2:
media-git/include/linux/string.h:246:9: warning: '__builtin_strncpy' output may be truncated copying 31 bytes from a string of length 31 [-Wstringop-truncation]
  return __builtin_strncpy(p, q, size);
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:30:30 -04:00
Hans Verkuil
a7f3482ddb media: go7007: fix two sparse warnings
drivers/media/usb/go7007/go7007-v4l2.c:637:2: warning: 'strncpy' specified bound 32 equals destination size [-Wstringop-truncation]
drivers/media/usb/go7007/go7007-fw.c:1507:3: warning: this statement may fall through [-Wimplicit-fallthrough=]

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:30:04 -04:00
Luca Ceresoli
e86d1929ad media: docs: selection: fix misleading sentence about the CROP API
The API limitation described here is about the CROP API, not about the
entire V4L2.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:28:22 -04:00
Luca Ceresoli
119e30d395 media: docs: selection: improve formatting
Split section "Comparison with old cropping API" in paragraphs for
easier reading and improve visible links text.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:27:43 -04:00
Luca Ceresoli
ff9273f5b8 media: docs: selection: rename files to something meaningful
These files have an automatically-generated numbering. Rename them
with a name that suggests their meaning.

Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:24:06 -04:00
Luca Ceresoli
579d76deb1 media: docs: clarify relationship between crop and selection APIs
Having two somewhat similar and largely overlapping APIs is confusing,
especially since the older one appears in the docs before the newer
and most featureful counterpart.

Clarify all of this in several ways:
 - swap the two sections
 - give a name to the two APIs in the section names
 - add a note at the beginning of the CROP API section
 - update note about VIDIOC_CROPCAP

Also remove a note that is incorrect (correct wording is in
vidioc-cropcap.rst).

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:23:15 -04:00
Luca Ceresoli
e81ff408c1 media: docs: selection: fix typos
Fix typos in the selection documentation:
 - over -> cover
 - BONDS -> BOUNDS

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:22:16 -04:00
Hans Verkuil
68afa17322 media: zoran: move to staging in preparation for removal
This driver hasn't been tested in a long, long time. The hardware is
ancient and pretty much obsolete. This driver also needs to be converted
to newer media frameworks (vb2!) but due to the lack of time and interest
that is unlikely to happen.

So this driver is a prime candidate for removal. If someone is interested
in working on this driver to prevent its removal, then please contact the
linux-media mailinglist.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:21:36 -04:00
Laurent Pinchart
50eea4ab91 media: i2c: adv748x: Fix pixel rate values
The pixel rate, as reported by the V4L2_CID_PIXEL_RATE control, must
include both horizontal and vertical blanking. Both the AFE and HDMI
receiver program it incorrectly:

- The HDMI receiver goes to the trouble of removing blanking to compute
the rate of active pixels. This is easy to fix by removing the
computation and returning the incoming pixel clock rate directly.

- The AFE performs similar calculation, while it should simply return
the fixed pixel rate for analog sources, mandated by the ADV748x to be
14.3180180 MHz.

[Niklas: Update AFE fixed pixel rate]

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25 15:19:38 -04:00
Ezequiel Garcia
24dd8d996f media: usbtv: Implement wait_prepare and wait_finish
This driver is currently specifying a vb2_queue lock,
which means it straightforward to implement wait_prepare
and wait_finish.

Having these callbacks releases the queue lock while blocking,
which improves latency by allowing for example streamoff
or qbuf operations while waiting in dqbuf.

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>
2018-05-25 15:17:19 -04:00
Luca Ceresoli
8ed8bba70b media: imx274: remove non-indexed pointers from mode_table
mode_table[] has 3 members that are accessed based on their index, which
makes worth using an array.

The other members are always accessed with a constant index. This added
indirection gives no improvement and only makes code more verbose.

Remove these pointers from the array and access them directly.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Luca Ceresoli
4eb7846d3e media: imx274: rename and reorder register address definitions
Most registers are defined using the name used in the datasheet.
E.g. the defines for the HMAX register are IMX274_HMAX_REG_*.

Rename the SHR and VMAX register accordingly. Also move them close to
related registers: SHR close to SVR, VMAX close to HMAX.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Luca Ceresoli
f067ddad00 media: imx274: remove unused data from struct imx274_frmfmt
struct imx274_frmfmt is instantiated only in the imx274_formats[]
array, where imx274_formats[N].mode always equals N (via enum
imx274_mode).  So .mode carries no information, and unsurprisingly it
is never used.

mbus_code is never used because the 12 bit modes are not implemented.

The colorspace member is also never used, which is normal since the
imx274 sensor can output only one colorspace.

Let's get rid of all of them.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Luca Ceresoli
cf90870454 media: imx274: slightly simplify code
imx274_s_frame_interval() already has a direct pointer to the v4l2
exposure control, so reuse it to simplify code.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Luca Ceresoli
013433919a media: imx274: fix typo in comment
interal->interval

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Luca Ceresoli
4c858e962e media: imx274: document reset delays more clearly
Document the unit to avoid having to look through the code to compute it.
Also clarify that these are min and max values.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Colin Ian King
7a2148dfda media: smiapp: fix timeout checking in smiapp_read_nvm
The current code decrements the timeout counter i and the end of
each loop i is incremented, so the check for timeout will always
be false and hence the timeout mechanism is just a dead code path.
Potentially, if the RD_READY bit is not set, we could end up in
an infinite loop.

Fix this so the timeout starts from 1000 and decrements to zero,
if at the end of the loop i is zero we have a timeout condition.

Detected by CoverityScan, CID#1324008 ("Logically dead code")

Fixes: ccfc97bdb5 ("[media] smiapp: Add driver")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Todor Tomov
d30bb512da media: Add a driver for the ov7251 camera sensor
The ov7251 sensor is a 1/7.5-Inch B&W VGA (640x480) CMOS Digital Image
Sensor from Omnivision.

The driver supports the following modes:
- 640x480 30fps
- 640x480 60fps
- 640x480 90fps

Output format is 10bit B&W RAW - MEDIA_BUS_FMT_Y10_1X10.

The driver supports configuration via user controls for:
- exposure and gain;
- horizontal and vertical flip;
- test pattern.

[Sakari Ailus: Wrap a line over 80 characters, fix trivial sparse warning]

Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Todor Tomov
eae419efec media: dt-bindings: media: Binding document for OV7251 camera sensor
Add the document for ov7251 device tree binding.

CC: Rob Herring <robh@kernel.org>
CC: Mark Rutland <mark.rutland@arm.com>
CC: devicetree@vger.kernel.org
Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Maxime Ripard
8663341799 media: ov5640: Program the visible resolution
The active frame size is set in the initialization arrays, but the value
itself is also available in the struct ov5640_mode_info.

Let's move these values out of the big bytes arrays, and program it with
the value of the mode that we are given.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Maxime Ripard
476dec012f media: ov5640: Add horizontal and vertical totals
All the initialization arrays are changing the horizontal and vertical
totals for some value.

In order to clean up the driver, and since we're going to need that value
later on, let's introduce in the ov5640_mode_info structure the horizontal
and vertical total sizes, and move these out of the bytes array.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Maxime Ripard
dba13a0b08 media: ov5640: Change horizontal and vertical resolutions name
The current width and height parameters in the struct ov5640_mode_info are
actually the active horizontal and vertical resolutions.

Since we're going to add a few other parameters, let's pick a better, more
precise name for these values.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Maxime Ripard
8f57c2f86b media: ov5640: Init properly the SCLK dividers
The SCLK and SCLK2X dividers are fixed in stone in the initialization
array. Let's make explicit what we're doing and move that away from the
huge array to the initialization code.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Maxime Ripard
bf4a4b518c media: ov5640: Don't force the auto exposure state at start time
The sensor needs to have the auto exposure stopped while changing mode.
However, when the new mode is set, the driver will force the auto exposure
on, disregarding whether the control has been changed or not.

Bypass the controls code entirely to do that, and only use the control
value cached when restoring the auto exposure mode.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Mylène Josserand
1068fecacf media: ov5640: Add light frequency control
Add the light frequency control to be able to set the frequency
to manual (50Hz or 60Hz) or auto.

[Sakari Ailus: Rename "ctl" as "ctrl" as agreed.]
[mchehab+samsung@kernel.org: fixed two coding style warnings]

Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Akinobu Mita
deb9eec696 media: ov2640: make s_ctrl() work in power-down mode
The s_ctrl() operation can be called when the device is placed into
power down mode.  Then, applying controls to H/W should be postponed at
this time.  Instead the controls will be restored when the streaming is
started.

Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Akinobu Mita
2aae393955 media: ov2640: make set_fmt() work in power-down mode
The set_fmt() subdev pad operation for this driver currently does not
only do the driver internal format selection but also do the actual
register setup.

This doesn't work if the device power control via GPIO lines is enabled.
Because the set_fmt() can be called when the device is placed into power
down mode.

First of all, this fix adds flag to keep track of whether the device starts
streaming or not.  Then, the set_fmt() postpones applying the actual
register setup at this time.  Instead the setup will be applied when the
streaming is started.

Cc: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Todor Tomov
7064878073 media: ov5645: Fix write_reg return code
I2C transfer functions return number of successful operations (on success).

Do not return the received positive return code but instead return 0 on
success. The users of write_reg function already use this logic.

Signed-off-by: Todor Tomov <todor.tomov@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Sakari Ailus
ce96bcf5b4 media: ov5640: Use dev_fwnode() to obtain device's fwnode
Use dev_fwnode() on the device instead of getting an fwnode handle of the
device's OF node. The result is the same on OF-based systems and looks
better, too.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Laurent Pinchart
47a52d024e media: drm: rcar-du: Add support for CRC computation
Implement CRC computation configuration and reporting through the DRM
debugfs-based CRC API. The CRC source can be configured to any input
plane or the pipeline output.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00
Laurent Pinchart
5e824f989e media: v4l: vsp1: Integrate DISCOM in display pipeline
The DISCOM is used to compute CRCs on display frames. Integrate it in
the display pipeline at the output of the blending unit to process
output frames.

Computing CRCs on input frames is possible by positioning the DISCOM at
a different point in the pipeline. This use case isn't supported at the
moment and could be implemented by extending the API between the VSP1
and DU drivers if needed.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-17 06:22:08 -04:00