Commit Graph

753418 Commits

Author SHA1 Message Date
Laurent Pinchart
1c4b5f4919 media: v4l: vsp1: Use SPDX license headers
Adopt the SPDX license identifier headers to ease license compliance
management. All files in the driver are licensed under the GPLv2+ except
for the vsp1_regs.h file which is licensed under the GPLv2. This is
likely an oversight, but fixing this requires contacting the copyright
owners and is out of scope for this patch.

While at it fix the file descriptions to match file names where copy and
paste error occurred.

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
Maxime Ripard
6f684d4fcc media: v4l: cadence: Add Cadence MIPI-CSI2 TX driver
The Cadence MIPI-CSI2 TX controller is an hardware block meant to be used
as a bridge between pixel interfaces and a CSI-2 bus.

It supports operating with an internal or external D-PHY, with up to 4
lanes, or without any D-PHY. The current code only supports the latter
case.

While the virtual channel input on the pixel interface can be directly
mapped to CSI2, the datatype input is actually a selection signal (3-bits)
mapping to a table of up to 8 preconfigured datatypes/formats (programmed
at start-up)

The block supports up to 8 input datatypes.

Acked-by: Benoit Parrot <bparrot@ti.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
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
Sakari Ailus
28d42d2fca media: cadence: csi2rx: Fix csi2rx_start error handling
The clocks enabled by csi2rx_start function are intended to be disabled in
an error path but there are two issues:

1) the loop condition is always true and

2) the first clock disabled is the the one enabling of which failed.

Fix these two bugs by changing the loop condition as well as only disabling
the clocks that were actually enabled.

Reported-by: Mauro Chehab <mchehab@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-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
Maxime Ripard
844ef04249 media: dt-bindings: media: Add Cadence MIPI-CSI2 TX Device Tree bindings
The Cadence MIPI-CSI2 TX controller is a CSI2 bridge that supports up to 4
video streams and can output on up to 4 CSI-2 lanes, depending on the
hardware implementation.

It can operate with an external D-PHY, an internal one or no D-PHY at all
in some configurations.

Acked-by: Benoit Parrot <bparrot@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
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>
2018-05-16 11:14:35 -04:00
Maxime Ripard
1fc3b37f34 media: v4l: cadence: Add Cadence MIPI-CSI2 RX driver
The Cadence CSI-2 RX Controller is an hardware block meant to be used as a
bridge between a CSI-2 bus and pixel grabbers.

It supports operating with internal or external D-PHY, with up to 4 lanes,
or without any D-PHY. The current code only supports the latter case.

It also support dynamic mapping of the CSI-2 virtual channels to the
associated pixel grabbers, but that isn't allowed at the moment either.

Acked-by: Benoit Parrot <bparrot@ti.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
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>
2018-05-16 11:12:21 -04:00
Maxime Ripard
3290aa63ee media: dt-bindings: media: Add Cadence MIPI-CSI2 RX Device Tree bindings
The Cadence MIPI-CSI2 RX controller is a CSI2RX bridge that supports up to
4 CSI-2 lanes, and can route the frames to up to 4 streams, depending on
the hardware implementation.

It can operate with an external D-PHY, an internal one or no D-PHY at all
in some configurations.

Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Benoit Parrot <bparrot@ti.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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>
2018-05-16 11:08:35 -04:00
Sakari Ailus
51b8dc5163 media: staging: atomisp: Remove driver
The atomisp driver has a long list of todo items and little has been done
to address these lately while more has been added. The driver is also not
functional. In other words, the driver would not be getting out of staging
in the foreseeable future. At the same time it consumes developer
resources in order to maintain the flaky code base. Remove it.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-16 10:44:37 -04:00
Mauro Carvalho Chehab
6522aa1b19 media: atomisp-mt9m114: comment out unused stuff
There are lots of data structs defined there but aren't used
anywhere.

Comment them out. Gets rid of those warnings:

drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c:1808:45: warning: 'mt9m114_entity_ops' defined but not used [-Wunused-const-variable=]
 static const struct media_entity_operations mt9m114_entity_ops = {
                                             ^~~~~~~~~~~~~~~~~~
In file included from drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c:35:0:
drivers/staging/media/atomisp/i2c/mt9m114.h:805:34: warning: 'mt9m114_iq' defined but not used [-Wunused-const-variable=]
 static struct misensor_reg const mt9m114_iq[] = {
                                  ^~~~~~~~~~
drivers/staging/media/atomisp/i2c/mt9m114.h:797:34: warning: 'mt9m114_antiflicker_60hz' defined but not used [-Wunused-const-variable=]
 static struct misensor_reg const mt9m114_antiflicker_60hz[] = {
                                  ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/mt9m114.h:789:34: warning: 'mt9m114_antiflicker_50hz' defined but not used [-Wunused-const-variable=]
 static struct misensor_reg const mt9m114_antiflicker_50hz[] = {
                                  ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/mt9m114.h:682:34: warning: 'mt9m114_720_480P_init' defined but not used [-Wunused-const-variable=]
 static struct misensor_reg const mt9m114_720_480P_init[] = {
                                  ^~~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/mt9m114.h:533:34: warning: 'mt9m114_960P_init' defined but not used [-Wunused-const-variable=]
 static struct misensor_reg const mt9m114_960P_init[] = {
                                  ^~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/mt9m114.h:518:34: warning: 'mt9m114_wakeup_reg' defined but not used [-Wunused-const-variable=]
 static struct misensor_reg const mt9m114_wakeup_reg[] = {
                                  ^~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/mt9m114.h:504:34: warning: 'mt9m114_streaming' defined but not used [-Wunused-const-variable=]
 static struct misensor_reg const mt9m114_streaming[] = {
                                  ^~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/mt9m114.h:497:34: warning: 'mt9m114_suspend' defined but not used [-Wunused-const-variable=]
 static struct misensor_reg const mt9m114_suspend[] = {
                                  ^~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/mt9m114.h:393:34: warning: 'mt9m114_exitstandby' defined but not used [-Wunused-const-variable=]
 static struct misensor_reg const mt9m114_exitstandby[] = {
                                  ^~~~~~~~~~~~~~~~~~~

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-16 10:38:49 -04:00
Mauro Carvalho Chehab
357486eca8 media: atomisp-mt9m114: remove dead data
It seems that, originally, the logic would allow selecting between
fine and coarse integration. However, only coarse seems to be
implemented.

Get rid of this warning:

  drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c: In function 'mt9m114_s_exposure':
  drivers/staging/media/atomisp/i2c/atomisp-mt9m114.c:1003:6: warning: variable 'exposure_local' set but not used [-Wunused-but-set-variable]
    u16 exposure_local[3];
        ^~~~~~~~~~~~~~

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-16 10:32:44 -04:00
Mauro Carvalho Chehab
0015b19070 media: atomisp-gc0310: return errors at gc0310_init()
If something wrong gets there, return the error.

Get rid of this warning:

  drivers/staging/media/atomisp/i2c/atomisp-gc0310.c: In function 'gc0310_init':
  drivers/staging/media/atomisp/i2c/atomisp-gc0310.c:713:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
    int ret;
        ^~~

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-16 10:32:11 -04:00
Mauro Carvalho Chehab
e5c0680fd2 media: atomisp: ov2680: don't declare unused vars
drivers/staging/media/atomisp/i2c/atomisp-ov2680.c: In function ‘__ov2680_set_exposure’:
drivers/staging/media/atomisp/i2c/atomisp-ov2680.c:400:10: warning: variable ‘hts’ set but not used [-Wunused-but-set-variable]
  u16 vts,hts;
          ^~~
drivers/staging/media/atomisp/i2c/atomisp-ov2680.c: In function ‘ov2680_detect’:
drivers/staging/media/atomisp/i2c/atomisp-ov2680.c:1164:5: warning: variable ‘revision’ set but not used [-Wunused-but-set-variable]
  u8 revision;
     ^~~~~~~~

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-16 10:31:54 -04:00
Mauro Carvalho Chehab
db01f7ccfa media: staging: atomisp: Comment out several unused sensor resolutions
The register settings for several resolutions aren't used
currently. So, comment them out.

Fix those warnings:

In file included from drivers/staging/media/atomisp/i2c/atomisp-gc2235.c:35:0:
drivers/staging/media/atomisp/i2c/gc2235.h:340:32: warning: 'gc2235_960_640_30fps' defined but not used [-Wunused-const-variable=]
 static struct gc2235_reg const gc2235_960_640_30fps[] = {
                                ^~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/gc2235.h:287:32: warning: 'gc2235_1296_736_30fps' defined but not used [-Wunused-const-variable=]
 static struct gc2235_reg const gc2235_1296_736_30fps[] = {
                                ^~~~~~~~~~~~~~~~~~~~~
In file included from drivers/staging/media/atomisp/i2c/atomisp-ov2722.c:35:0:
drivers/staging/media/atomisp/i2c/ov2722.h:999:32: warning: 'ov2722_720p_30fps' defined but not used [-Wunused-const-variable=]
 static struct ov2722_reg const ov2722_720p_30fps[] = {
                                ^~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov2722.h:787:32: warning: 'ov2722_1M3_30fps' defined but not used [-Wunused-const-variable=]
 static struct ov2722_reg const ov2722_1M3_30fps[] = {
                                ^~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov2722.h:476:32: warning: 'ov2722_VGA_30fps' defined but not used [-Wunused-const-variable=]
 static struct ov2722_reg const ov2722_VGA_30fps[] = {
                                ^~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov2722.h:367:32: warning: 'ov2722_480P_30fps' defined but not used [-Wunused-const-variable=]
 static struct ov2722_reg const ov2722_480P_30fps[] = {
                                ^~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov2722.h:257:32: warning: 'ov2722_QVGA_30fps' defined but not used [-Wunused-const-variable=]
 static struct ov2722_reg const ov2722_QVGA_30fps[] = {
                                ^~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/atomisp-ov2680.c: In function '__ov2680_set_exposure':
In file included from drivers/staging/media/atomisp/i2c/atomisp-ov2680.c:35:0:
At top level:
drivers/staging/media/atomisp/i2c/ov2680.h:736:33: warning: 'ov2680_1616x1082_30fps' defined but not used [-Wunused-const-variable=]
  static struct ov2680_reg const ov2680_1616x1082_30fps[] = {
                                 ^~~~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov2680.h:649:33: warning: 'ov2680_1456x1096_30fps' defined but not used [-Wunused-const-variable=]
  static struct ov2680_reg const ov2680_1456x1096_30fps[]= {
                                 ^~~~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov2680.h:606:33: warning: 'ov2680_1296x976_30fps' defined but not used [-Wunused-const-variable=]
  static struct ov2680_reg const ov2680_1296x976_30fps[] = {
                                 ^~~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov2680.h:563:33: warning: 'ov2680_720p_30fps' defined but not used [-Wunused-const-variable=]
  static struct ov2680_reg const ov2680_720p_30fps[] = {
                                 ^~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov2680.h:520:33: warning: 'ov2680_800x600_30fps' defined but not used [-Wunused-const-variable=]
  static struct ov2680_reg const ov2680_800x600_30fps[] = {
                                 ^~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov2680.h:475:33: warning: 'ov2680_720x592_30fps' defined but not used [-Wunused-const-variable=]
  static struct ov2680_reg const ov2680_720x592_30fps[] = {
                                 ^~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov2680.h:433:33: warning: 'ov2680_656x496_30fps' defined but not used [-Wunused-const-variable=]
  static struct ov2680_reg const ov2680_656x496_30fps[] = {
                                 ^~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov2680.h:389:33: warning: 'ov2680_QVGA_30fps' defined but not used [-Wunused-const-variable=]
  static struct ov2680_reg const ov2680_QVGA_30fps[] = {
                                 ^~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov2680.h:346:33: warning: 'ov2680_CIF_30fps' defined but not used [-Wunused-const-variable=]
  static struct ov2680_reg const ov2680_CIF_30fps[] = {
                                 ^~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov2680.h:301:33: warning: 'ov2680_QCIF_30fps' defined but not used [-Wunused-const-variable=]
  static struct ov2680_reg const ov2680_QCIF_30fps[] = {
                                 ^~~~~~~~~~~~~~~~~
In file included from drivers/staging/media/atomisp/i2c/ov5693/atomisp-ov5693.c:36:0:
drivers/staging/media/atomisp/i2c/ov5693/ov5693.h:988:32: warning: 'ov5693_1424x1168_30fps' defined but not used [-Wunused-const-variable=]
 static struct ov5693_reg const ov5693_1424x1168_30fps[] = {
                                ^~~~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov5693/ov5693.h:954:32: warning: 'ov5693_2592x1944_30fps' defined but not used [-Wunused-const-variable=]
 static struct ov5693_reg const ov5693_2592x1944_30fps[] = {
                                ^~~~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov5693/ov5693.h:889:32: warning: 'ov5693_2592x1456_30fps' defined but not used [-Wunused-const-variable=]
 static struct ov5693_reg const ov5693_2592x1456_30fps[] = {
                                ^~~~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov5693/ov5693.h:862:32: warning: 'ov5693_1940x1096' defined but not used [-Wunused-const-variable=]
 static struct ov5693_reg const ov5693_1940x1096[] = {
                                ^~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov5693/ov5693.h:796:32: warning: 'ov5693_1636p_30fps' defined but not used [-Wunused-const-variable=]
 static struct ov5693_reg const ov5693_1636p_30fps[] = {
                                ^~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov5693/ov5693.h:758:32: warning: 'ov5693_1296x736' defined but not used [-Wunused-const-variable=]
 static struct ov5693_reg const ov5693_1296x736[] = {
                                ^~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov5693/ov5693.h:730:32: warning: 'ov5693_976x556' defined but not used [-Wunused-const-variable=]
 static struct ov5693_reg const ov5693_976x556[] = {
                                ^~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov5693/ov5693.h:672:32: warning: 'ov5693_736x496' defined but not used [-Wunused-const-variable=]
 static struct ov5693_reg const ov5693_736x496[] = {
                                ^~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov5693/ov5693.h:643:32: warning: 'ov5693_192x160' defined but not used [-Wunused-const-variable=]
 static struct ov5693_reg const ov5693_192x160[] = {
                                ^~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov5693/ov5693.h:616:32: warning: 'ov5693_368x304' defined but not used [-Wunused-const-variable=]
 static struct ov5693_reg const ov5693_368x304[] = {
                                ^~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov5693/ov5693.h:587:32: warning: 'ov5693_336x256' defined but not used [-Wunused-const-variable=]
 static struct ov5693_reg const ov5693_336x256[] = {
                                ^~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov5693/ov5693.h:540:32: warning: 'ov5693_1296x976' defined but not used [-Wunused-const-variable=]
 static struct ov5693_reg const ov5693_1296x976[] = {
                                ^~~~~~~~~~~~~~~
drivers/staging/media/atomisp/i2c/ov5693/ov5693.h:509:32: warning: 'ov5693_654x496' defined but not used [-Wunused-const-variable=]
 static struct ov5693_reg const ov5693_654x496[] = {
                                ^~~~~~~~~~~~~~

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-16 10:29:55 -04:00
Mauro Carvalho Chehab
d8a665c938 media: staging: atomisp-gc2235: don't fill an unused var
The code with uses the dummy var is commented out. So,
coment out its definition/initialization.

Fix this warning:

  drivers/staging/media/atomisp/i2c/atomisp-gc2235.c: In function 'gc2235_get_intg_factor':
  drivers/staging/media/atomisp/i2c/atomisp-gc2235.c:249:26: warning: variable 'dummy' set but not used [-Wunused-but-set-variable]
    u16 reg_val, reg_val_h, dummy;
                            ^~~~~

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-16 10:28:59 -04:00
Mauro Carvalho Chehab
746d60e90e media: atomisp: ov2680.h: fix identation
The identation for several tables there are broken.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-16 10:28:22 -04:00
Mauro Carvalho Chehab
8196b83232 media: staging: atomisp: reenable warnings for I2C
When atomisp got merged, there were so many warnings with W=1
that we simply disabled the ones that were causing troubles.

Since then, several changes got applied to atomisp, and the
number of warnings are a way smaller than it used to be.

So, let's reenable warnings there and fix the issues.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-16 10:28:01 -04:00
Mauro Carvalho Chehab
313c5197c5 media: staging: atomisp: get rid of __KERNEL macros
There's no sense for a Kernel driver to have __KERNEL macros
on it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-16 10:27:40 -04:00
Shaokun Zhang
22457cb2de media: atomisp: fix misleading addr information
IA_CSS_ERROR shows the ddr_buffer_addr as a decimal value with a '0x'
prefix, which is somewhat misleading.

Let's fix it to print hexadecimal, as was intended.

Fixes: 158aeefc("[media] atomisp: Add __printf validation and fix fallout")

Cc: Alan Cox <alan@linux.intel.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-16 10:27:04 -04:00
YueHaibing
0de3d73b93 media: staging: atomisp: Using module_pci_driver
Remove boilerplate code by using macro module_pci_driver.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-16 10:26:46 -04:00
Colin Ian King
e6c023aff1 media: atomisp: fix spelling mistake: "diregard" -> "disregard"
Trivial fix to spelling mistake in ia_css_print message text

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>
2018-05-16 10:24:49 -04:00
Mauro Carvalho Chehab
4f5ab5d7a5 media: dvb_ca_en50221: prevent using slot_info for Spectre attacs
slot can be controlled by user-space, hence leading to
a potential exploitation of the Spectre variant 1 vulnerability,
as warned by smatch:
	drivers/media/dvb-core/dvb_ca_en50221.c:1479 dvb_ca_en50221_io_write() warn: potential spectre issue 'ca->slot_info' (local cap)

Acked-by: "Jasmin J." <jasmin@anw.at>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-16 10:17:22 -04:00
Mauro Carvalho Chehab
782b9d2011 media: siano: use GFP_DMA only for smssdio
Right now, the Siano's core uses GFP_DMA for both USB and
SDIO variants of the driver. There's no reason to use it
for USB. So, pass GFP_DMA as a parameter during sms core
register.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-15 08:04:42 -04:00
Mauro Carvalho Chehab
b2353e1dcc media: gp8psk: don't abuse of GFP_DMA
There's s no reason why it should be using GFP_DMA there.
This is an USB driver. Any restriction should be, instead,
at HCI core, if any.

Cc: "Luis R. Rodriguez" <mcgrof@kernel.org>
Cc: linux-mm@kvack.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-14 07:18:19 -04:00
Matthias Reichl
0630efeee8 media: rc: ite-cir: lower timeout and extend allowed timeout range
The minimum possible timeout of ite-cir is 8 samples, which is
typically about 70us. The driver however changes the FIFO trigger
level from the hardware's default of 1 byte to 17 bytes, so the minimum
usable timeout value is 17 * 8 samples, which is typically about 1.2ms.

Tests showed that using timeouts down to 1.2ms actually work fine.

The current default timeout of 200ms is much longer than necessary and
the maximum timeout of 1s seems to have been chosen a bit arbitrarily.

So change the minimum timeout to the driver's limit of 17 * 8 samples
and bring timeout and maximum timeout in line with the settings
of many other receivers.

Signed-off-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-14 07:17:28 -04:00
Sean Young
5dae9cea2a media: rc: winbond: do not send reset and timeout raw events on startup
ir_raw_event_set_idle() sends a timeout event which is not needed, and
on startup no reset event is needed either.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-14 07:17:06 -04:00
Sean Young
09161a0552 media: rc: decoders do not need to check for transitions
Drivers should never produce consecutive pulse or space raw events. Should
that occur, we would have bigger problems than this code is trying to
guard against.

Note that we already log an error should a driver misbehave.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-14 07:16:24 -04:00
Sean Young
48231f289e media: rc: drivers should produce alternate pulse and space timing events
Report an error if this is not the case or any problem with the generated
raw events.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-14 07:15:51 -04:00
Sean Young
e0d51e6cef media: rc: default to idle on at startup or after reset
Any spaces events received after a reset or startup should be discarded,
so ensure the rc device is in idle mode.

This also makes it much easier to detect incorrect raw events, as we will
do in a following commit.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-14 07:14:51 -04:00
Sean Young
d898cc1df0 media: lirc-func.rst: new ioctl LIRC_GET_REC_TIMEOUT is not in a separate file
This fixes the warning:

Documentation/media/uapi/rc/lirc-func.rst:9: WARNING: toctree contains reference to nonexisting document 'media/uapi/rc/lirc-get-rec-timeout'

The ioctl is documented in lirc-set-rec-timeout.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-14 07:13:11 -04:00
Sean Young
e708e5a44d media: mceusb: add missing break
Fallthrough is not intended here.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-14 07:12:33 -04:00
Sean Young
d4589935eb media: mceusb: filter out bogus timing irdata of duration 0
A mceusb device has been observed producing invalid irdata. Proactively
guard against this.

Suggested-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-14 07:12:11 -04:00
Sean Young
aec3eadfb6 media: mceusb: MCE_CMD_SETIRTIMEOUT cause strange behaviour on device
If the IR timeout is set on vid 1784 pid 0011, the device starts
behaving strangely.

Reported-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-14 07:11:37 -04:00
Mauro Carvalho Chehab
09c2cc98cd media: dvb_frontend: cleanup some coding style errors
This is a core media file... it shoudn't have so many coding
style issues! The last patch ended by being submitted with
an error like that, very likely due to some cut and paste
issue.

Maybe it is time to clean it up. Do it with the auto
fix logic:

 ./scripts/checkpatch.pl -f drivers/media/dvb-core/dvb_frontend.c --strict --fix-inplace

Then manually fix the errors introduced by it.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 12:37:03 -04:00
Max Kellermann
f17c403af9 media: dvbdev: add a mutex protecting the "mdev" pointer
During destruction, a race condition in
dvb_media_controller_disable_source() can cause a kernel crash,
because the "mdev" pointer has been read successfully while another
task executes dvb_usb_media_device_unregister(), which destroys the
object.  Example for such a crash:

    general protection fault: 0000 [#1] SMP
    CPU: 1 PID: 301 Comm: vdr Not tainted 4.8.1-nuc+ #102
    [142B blob data]
    task: ffff8802301f2040 task.stack: ffff880233728000
    RIP: 0010:[<ffffffff816c296b>]  [<ffffffff816c296b>] dvb_frontend_release+0xcb/0x120
    RSP: 0018:ffff88023372bdd8  EFLAGS: 00010202
    RAX: 001fd55c000000da RBX: ffff880236bad810 RCX: 0000000000000000
    RDX: ffff880235bd81f0 RSI: 0000000000000246 RDI: ffff880235bd81e8
    RBP: ffff88023372be00 R08: 0000000000000000 R09: 0000000000000000
    R10: 0000000000000000 R11: ffff88022f009910 R12: 0000000000000000
    R13: ffff880235a21a80 R14: ffff880235bd8000 R15: ffff880235bb8a78
    FS:  0000000000000000(0000) GS:ffff88023fd00000(0000) knlGS:0000000000000000
    CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    CR2: 00007f96edd69818 CR3: 0000000002406000 CR4: 00000000001006e0
    Stack:
     ffff88022f009900 0000000000000008 ffff880235bb8a78 ffff8802344fbb20
     ffff880236437b40 ffff88023372be48 ffffffff8117a81e ffff880235bb8a78
     ffff88022f009910 ffff8802335a7400 ffff8802301f2040 ffff88022f009900
    Call Trace:
     [<ffffffff8117a81e>] __fput+0xde/0x1d0
     [<ffffffff8117a949>] ____fput+0x9/0x10
     [<ffffffff810a9fce>] task_work_run+0x7e/0xa0
     [<ffffffff81094bab>] do_exit+0x27b/0xa50
     [<ffffffff810407e3>] ? __do_page_fault+0x1c3/0x430
     [<ffffffff81095402>] do_group_exit+0x42/0xb0
     [<ffffffff8109547f>] SyS_exit_group+0xf/0x10
     [<ffffffff8108bedb>] entry_SYSCALL_64_fastpath+0x13/0x8f
    Code: 31 c9 49 8d be e8 01 00 00 ba 01 00 00 00 be 03 00 00 00 e8 68 2d a0 ff 48 8b 83 10 03 00 00 48 8b 80 88 00 00 00 48 85 c0 74 12 <48> 8b 80 88 02 00 00 48 85 c0 74 06 49 8b 7d
    RIP  [<ffffffff816c296b>] dvb_frontend_release+0xcb/0x120

[mchehab+samsung@kernel.org: fix a Coding Style issue]
Signed-off-by: Max Kellermann <max.kellermann@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 12:09:59 -04:00
Hans Verkuil
2a5f2705c9 media: lgdt330x.h: fix compiler warning
Add missing 'inline' to fix this compiler warning:

In file included from drivers/media/common/b2c2/flexcop-fe-tuner.c:21:0:
drivers/media/dvb-frontends/lgdt330x.h:61:22: warning: 'lgdt330x_attach' defined but not used [-Wunused-function]
 struct dvb_frontend *lgdt330x_attach(const struct lgdt330x_config *config,
                      ^~~~~~~~~~~~~~~

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Suggested-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:40:09 -04:00
Niklas Söderlund
3997716898 media: rcar-vin: fix crop and compose handling for Gen3
When refactoring the Gen3 enablement series crop and compose handling
where broken. This went unnoticed but can result in writing out side the
capture buffer. Fix this by restoring the crop and compose to reflect
the format dimensions as we have not yet enabled the scaler for Gen3.

Fixes: 5e7c623632 ("media: rcar-vin: use different v4l2 operations in media controller mode")

Reported-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:39:51 -04:00
Niklas Söderlund
d73c3357c8 media: Revert "media: rcar-vin: enable field toggle after a set number of lines for Gen3"
The offending commit was an attempt to fix the issue of writing outside
the capture buffer for VIN Gen3. Unfortunately it only fixed the symptom
of the problem to such a degree I could no longer reproduce it. Revert
the offending commit before a proper fix can be added in a follow-up
patch.

This reverts commit 015060cb77.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:39:32 -04:00
Colin Ian King
715b703daa media: dvb_frontends: fix spelling mistake: "unexpcted" -> "unexpected"
Trivial fix to spelling mistake in dprintk message text

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:38:39 -04:00
Anders Roxell
7cc31fae02 media: usb: cx231xx-417: include linux/slab.h header
cx231-417 uses kmalloc/kfree functions, so slab header needs to be
included in order to fix the following build errors:
drivers/media/usb/cx231xx/cx231xx-417.c: In function ‘cx231xx_bulk_copy’:
  CC      drivers/media/platform/qcom/venus/firmware.o
drivers/media/usb/cx231xx/cx231xx-417.c:1389:11: error: implicit declaration of function ‘kmalloc’; did you mean ‘vmalloc’? [-Werror=implicit-function-declaration]
  buffer = kmalloc(buffer_size, GFP_ATOMIC);
           ^~~~~~~
           vmalloc
drivers/media/usb/cx231xx/cx231xx-417.c:1389:9: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
  buffer = kmalloc(buffer_size, GFP_ATOMIC);
         ^
drivers/media/usb/cx231xx/cx231xx-417.c:1400:2: error: implicit declaration of function ‘kfree’; did you mean ‘vfree’? [-Werror=implicit-function-declaration]
  kfree(buffer);
  ^~~~~
  vfree
drivers/media/usb/cx231xx/cx231xx-417.c: In function ‘mpeg_open’:
drivers/media/usb/cx231xx/cx231xx-417.c:1713:7: error: implicit declaration of function ‘kzalloc’; did you mean ‘vzalloc’? [-Werror=implicit-function-declaration]
  fh = kzalloc(sizeof(*fh), GFP_KERNEL);
       ^~~~~~~
       vzalloc
drivers/media/usb/cx231xx/cx231xx-417.c:1713:5: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
  fh = kzalloc(sizeof(*fh), GFP_KERNEL);
     ^

Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:37:57 -04:00
Christophe JAILLET
50a0efae27 media: i2c: tda1997: Fix an error handling path 'tda1997x_probe()'
If 'media_entity_pads_init()' fails, we must free the resources allocated
by 'v4l2_ctrl_handler_init()', as already done in the previous error
handling path.

'goto' the right label to fix it.

Fixes: 9ac0038db9 ("media: i2c: Add TDA1997x HDMI receiver driver")

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:36:09 -04:00
Peter Rosin
de281f7e8f media: saa7146: fix error return from master_xfer
Returning -1 (-EPERM) is not appropriate here, go with -EIO.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:30:57 -04:00
Brad Love
2f53370991 media: em28xx: Demote several dev_err to dev_info
These two statements are not errors, reduce to appropriate level.

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:30:38 -04:00
Colin Ian King
6ce6a8ef5e media: cx231xx: Fix spelling mistake: "senario" -> "scenario"
Trivial fix to spelling mistake in dev_err message.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:30:16 -04:00
Brad Love
ff9d1c0143 media: cx23885: Add some missing register documentation
Document what these two register calls are doing.

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:29:53 -04:00
Brad Love
f72ff638e6 media: cx23885: Expand registers in dma tsport reg dump
Include some additional useful registers in the output.

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:29:34 -04:00
Brad Love
95f408bbc4 media: cx23885: Ryzen DMA related RiSC engine stall fixes
This bug affects all of Hauppauge QuadHD boards when used on all Ryzen
platforms and some XEON platforms. On these platforms it is possible to
error out the RiSC engine and cause it to stall, whereafter the only
way to reset the board to a working state is to reboot.

This is the fatal condition with current driver:

[  255.663598] cx23885: cx23885[0]: mpeg risc op code error
[  255.663607] cx23885: cx23885[0]: TS1 B - dma channel status dump
[  255.663612] cx23885: cx23885[0]:   cmds: init risc lo   : 0xffe54000
[  255.663615] cx23885: cx23885[0]:   cmds: init risc hi   : 0x00000000
[  255.663619] cx23885: cx23885[0]:   cmds: cdt base       : 0x00010870
[  255.663622] cx23885: cx23885[0]:   cmds: cdt size       : 0x0000000a
[  255.663625] cx23885: cx23885[0]:   cmds: iq base        : 0x00010630
[  255.663629] cx23885: cx23885[0]:   cmds: iq size        : 0x00000010
[  255.663632] cx23885: cx23885[0]:   cmds: risc pc lo     : 0xffe54018
[  255.663636] cx23885: cx23885[0]:   cmds: risc pc hi     : 0x00000000
[  255.663639] cx23885: cx23885[0]:   cmds: iq wr ptr      : 0x00004192
[  255.663642] cx23885: cx23885[0]:   cmds: iq rd ptr      : 0x0000418c
[  255.663645] cx23885: cx23885[0]:   cmds: cdt current    : 0x00010898
[  255.663649] cx23885: cx23885[0]:   cmds: pci target lo  : 0xf85ca340
[  255.663652] cx23885: cx23885[0]:   cmds: pci target hi  : 0x00000000
[  255.663655] cx23885: cx23885[0]:   cmds: line / byte    : 0x000c0000
[  255.663659] cx23885: cx23885[0]:   risc0:
[  255.663661] 0x1c0002f0 [ write sol eol count=752 ]
[  255.663666] cx23885: cx23885[0]:   risc1:
[  255.663667] 0xf85ca050 [ INVALID sol 22 20 19 18 resync 13 count=80 ]
[  255.663674] cx23885: cx23885[0]:   risc2:
[  255.663674] 0x00000000 [ INVALID count=0 ]
[  255.663678] cx23885: cx23885[0]:   risc3:
[  255.663679] 0x1c0002f0 [ write sol eol count=752 ]
[  255.663684] cx23885: cx23885[0]:   (0x00010630) iq 0:
[  255.663685] 0x1c0002f0 [ write sol eol count=752 ]
[  255.663690] cx23885: cx23885[0]:   iq 1: 0xf85ca630 [ arg #1 ]
[  255.663693] cx23885: cx23885[0]:   iq 2: 0x00000000 [ arg #2 ]
[  255.663696] cx23885: cx23885[0]:   (0x0001063c) iq 3:
[  255.663697] 0x1c0002f0 [ write sol eol count=752 ]
[  255.663702] cx23885: cx23885[0]:   iq 4: 0xf85ca920 [ arg #1 ]
[  255.663705] cx23885: cx23885[0]:   iq 5: 0x00000000 [ arg #2 ]
[  255.663709] cx23885: cx23885[0]:   (0x00010648) iq 6:
[  255.663709] 0xf85ca340 [ INVALID sol 22 20 19 18 resync 13 count=832 ]
[  255.663716] cx23885: cx23885[0]:   (0x0001064c) iq 7:
[  255.663717] 0x00000000 [ INVALID count=0 ]
[  255.663721] cx23885: cx23885[0]:   (0x00010650) iq 8:
[  255.663721] 0x00000000 [ INVALID count=0 ]
[  255.663725] cx23885: cx23885[0]:   (0x00010654) iq 9:
[  255.663726] 0x1c0002f0 [ write sol eol count=752 ]
[  255.663731] cx23885: cx23885[0]:   iq a: 0xf85c9780 [ arg #1 ]
[  255.663734] cx23885: cx23885[0]:   iq b: 0x00000000 [ arg #2 ]
[  255.663737] cx23885: cx23885[0]:   (0x00010660) iq c:
[  255.663738] 0x1c0002f0 [ write sol eol count=752 ]
[  255.663743] cx23885: cx23885[0]:   iq d: 0xf85c9a70 [ arg #1 ]
[  255.663746] cx23885: cx23885[0]:   iq e: 0x00000000 [ arg #2 ]
[  255.663749] cx23885: cx23885[0]:   (0x0001066c) iq f:
[  255.663750] 0x1c0002f0 [ write sol eol count=752 ]
[  255.663755] cx23885: cx23885[0]:   iq 10: 0xf4fa2920 [ arg #1 ]
[  255.663758] cx23885: cx23885[0]:   iq 11: 0x00000000 [ arg #2 ]
[  255.663759] cx23885: cx23885[0]: fifo: 0x00005000 -> 0x6000
[  255.663760] cx23885: cx23885[0]: ctrl: 0x00010630 -> 0x10690
[  255.663764] cx23885: cx23885[0]:   ptr1_reg: 0x00005980
[  255.663767] cx23885: cx23885[0]:   ptr2_reg: 0x000108a8
[  255.663770] cx23885: cx23885[0]:   cnt1_reg: 0x0000000b
[  255.663773] cx23885: cx23885[0]:   cnt2_reg: 0x00000003

Included is checks of the TC_REQ and TC_REQ_SET registers during states
of board initialization, reset, DMA start, and DMA stop. If both registers
are set, this indicates a stall in the RiSC engine, at which point the
bridge error is cleared.

A small delay is introduced in stop_dma as well, to allow transfers in
progress to finish.

After application all models work on Ryzen, occasionally yielding:

cx23885_clear_bridge_error: dma in progress detected 0x00000001 0x00000001, clearing

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
[hansverk@cisco.com: fix compiler warning of unused 'reg' variable]
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:29:11 -04:00
Brad Love
3b8315f37d media: cx23885: Use PCI and TS masks in irq functions
Currently mask is read for pci_status/ts1_status/ts2_status, but
otherwise ignored. The masks are now used to determine whether
action is warranted.

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:28:28 -04:00
Brad Love
9a7dc2b064 media: cx23885: Handle additional bufs on interrupt
On Ryzen systems interrupts are occasionally missed:

cx23885: cx23885_wakeup: [ffff99b384b83c00/28] wakeup reg=5406 buf=5405
cx23885: cx23885_wakeup: [ffff99b40bf79400/31] wakeup reg=9537 buf=9536

This patch loops up to five times on wakeup, marking any buffers
found done.

Since the count register is u16, but the vb2 counter is u32, some modulo
arithmetic is used to accommodate wraparound and ensure current active
buffer is the buffer expected.

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:27:36 -04:00
Hans Verkuil
acd14c181f media: v4l2-device.h: always expose mdev
The mdev field is only present if CONFIG_MEDIA_CONTROLLER is set.
But since we will need to pass the media_device to vb2 and the
control framework it is very convenient to just make this field
available all the time. If CONFIG_MEDIA_CONTROLLER is not set,
then it will just be NULL.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:26:56 -04:00
Sami Tolvanen
3ad3b7a2eb media: v4l2-ioctl: replace IOCTL_INFO_STD with stub functions
This change removes IOCTL_INFO_STD and adds stub functions where
needed using the DEFINE_V4L_STUB_FUNC macro. This fixes indirect call
mismatches with Control-Flow Integrity, caused by calling standard
ioctls using a function pointer that doesn't match the function type.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:26:38 -04:00
Gustavo Padovan
f1d00607af media: hackrf: group device capabilities
Instead of putting V4L2_CAP_STREAMING and V4L2_CAP_READWRITE
everywhere, set device_caps earlier with these values.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11 11:25:23 -04:00