- 02 Jan, 2014 8 commits
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Dan Carpenter authored
The spin_lock_irqsave() macro is not nestable. The second call will overwrite the first record of "flags" so the IRQs will not be enabled correctly at the end of the function. In the current code, this function is always called from the IRQ handler so everything works fine and this fix doesn't change anything. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Mauro Carvalho Chehab <m.chehab@samsung.com>
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Dan Carpenter authored
Smatch complains here because name is a 32 character buffer and we adding the "OMAP4 ISS " prefix as well for a total of 42 characters. The sd->name buffer can only hold 32 characters. I've changed it to use snprintf() to silence the overflow warning. Also I have removed the call to strlcpy() which is a no-op. Signed-off-by:
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Sylwester Nawrocki authored
Now when the sub-drivers are fixed to work with runtime PM disabled this erroneous dependency can be removed. The CAM and ISP power domains should be left in active state by the platform if runtime PM is not used. Signed-off-by:
Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by:
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Sylwester Nawrocki authored
Ensure the device works also when runtime PM is disabled. This will allow to drop an incorrect dependency on PM_RUNTIME. Signed-off-by:
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Sylwester Nawrocki authored
The memory allocator is being initialized before registering the subdevs so reverse the cleanup sequence to avoid trying unregister not registered subdevs. Signed-off-by:
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Sylwester Nawrocki authored
Ensure the device also works when runtime PM is disabled. Signed-off-by:
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Sylwester Nawrocki authored
Devices should also operate normally when runtime PM is not enabled. In case runtime PM is disabled activate the device already in probe(). Any related power domain needs to be then left permanently in active state by the platform. Signed-off-by:
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Sylwester Nawrocki authored
Driver should ensure a device can be also used normally when runtime PM is disabled. So enable the FIMC clock in probe() in such situation. Signed-off-by:
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- 21 Dec, 2013 3 commits
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Andrzej Hajda authored
Driver for Samsung S5K5BAF UXGA 1/5" 2M CMOS Image Sensor with embedded SoC ISP. The device is exposed as two V4L2 subdevices: - S5K5BAF-CIS - the image sensor matrix, fixed 1600x1200 format, no controls. - S5K5BAF-ISP - the Image Signal Processor, formats up to 1600x1200, pre/post ISP cropping, downscaling via selection API, controls. [m.chehab@samsung.com: Whitespace cleanups] Signed-off-by:
Andrzej Hajda <a.hajda@samsung.com> Signed-off-by:
Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by:
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Andrzej Hajda authored
This patch adds the DT bindings documentation for Samsung S5K5BAF Image Sensor. Signed-off-by:
Mark Rutland <mark.rutland@arm.com> Signed-off-by:
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Mauro Carvalho Chehab authored
As reported by the kbuild test robot <fengguang.wu@intel.com>: > warning: (VIDEO_EM28XX_DVB) selects DVB_M88DS3103 which has unmet direct dependencies (MEDIA_SUPPORT && DVB_CORE && I2C && I2C_MUX) > drivers/built-in.o: In function `m88ds3103_release': > >> m88ds3103.c:(.text+0x1ab1af): undefined reference to `i2c_del_mux_adapter' > drivers/built-in.o: In function `m88ds3103_attach': > >> (.text+0x1ab342): undefined reference to `i2c_add_mux_adapter' There are 3 possible ways to fix it: 1) make em28xx dependent on I2C_MUX. That sounds wrong, as the em28xx bridge doesn't have i2c muxes on it, and just one frontend has. Well, subdevs could eventually be converted to, instead of using dvb i2c gate control, to use i2c mux support. That makes sense, but it takes time and lots of effort. Not sure if this will happen anytime soon. 2) MEDIA_SUBDRV_AUTOSELECT can be dependent of I2C and I2C_MUX. That means that users will need to manually enable I2C_MUX on some distributions. Not sure about others, but, on Fedora, this option is disabled. So, it can end by generating a number of complains from users that their devices suddenly stopped working after a Kernel upgrade, at least until all distros that ship Kernels with I2C_MUX enabled. 3) if MEDIA_SUBDRV_AUTOSELECT is selected, it will select I2C and I2C_MUX. Of course, MEDIA_SUBDRV_AUTOSELECT will need to inherit all dependencies that I2C and I2C_MUX have (only HAS_IOMEM). The disadvantage is that, if new dependencies are added on I2C, they'll also need to be added here. As the hole idea of autoselect is to let the user not bother about whatever frontend/tuner is used by a driver, IMHO, (3) is the better solution. Reported-by:
kbuild test robot <fengguang.wu@intel.com> Signed-off-by:
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- 20 Dec, 2013 5 commits
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Antti Palosaari authored
PLL was attached twice to frontend0 leaving frontend1 without a tuner. frontend0 is DVB-C and frontend1 is DVB-T. Cc: stable@vger.kernel.org Signed-off-by:
Antti Palosaari <crope@iki.fi> Signed-off-by:
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Frank Schaefer authored
For GPI-connected buttons without (hardware) debouncing, the polling interval needs to be reduced to detect button presses properly. Signed-off-by:
Frank Schäfer <fschaefer.oss@googlemail.com> Signed-off-by:
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Hans Verkuil authored
The omap24xx driver and the tcm825x sensor driver are the only two remaining drivers to still use the old deprecated v4l2-int-device API. Nobody maintains these drivers anymore. But unfortunately the v4l2-int-device API is used by out-of-tree drivers (MXC platform). This is a very bad situation since as long as this deprecated API stays in the kernel there is no reason for those out-of-tree drivers to convert. This patch moves v4l2-int-device and the two drivers that depend on it to staging in preparation for their removal. If someone would be interested in getting these drivers to work, then start with this since it's not very far from the state where they used to work: <URL:http://vihersipuli.retiisi.org.uk/cgi-bin/gitweb.cgi?p=~sailus/linux-omap/.git;a=summary> The branch is n800-cam. Porting to up-to-date APIs can then be done. David might have done some work in that area, so check with him first. Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Cc: Sakari Ailus <sakari.ailus@iki.fi> Cc: David Cohen <dacohen@gmail.com> Signed-off-by:
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Hans Verkuil authored
During the last media summit meeting it was decided to move this driver to staging as the first step to removing it altogether. Most webcams covered by this driver are now supported by gspca. Nobody has the hardware to convert the remaining devices to gspca. This driver needs a major overhaul to have it conform to the latest frameworks and compliancy tests. Without hardware, however, this is next to impossible. Given the fact that this driver seems to be pretty much unused (it has been removed from Fedora several versions ago and nobody complained about that), we decided to drop this driver. This patch moves it to staging. Some time in 2014 we will drop it completely. Signed-off-by:
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Mauro Carvalho Chehab authored
As reported by kbuild test robot <fengguang.wu@intel.com>: with a random config: drivers/built-in.o: In function `dib8000_get_time_us.isra.16': >> dib8000.c:(.text+0x3075aa): undefined reference to `__udivdi3' Signed-off-by:
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- 19 Dec, 2013 24 commits
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Robert Backhaus authored
GIT_AUTHOR_DATE=1386943312 Add USB IDs for the WinFast DTV Dongle Mini. Device is tested and works fine under MythTV Signed-off-by:Robert Backhaus <robbak@robbak.com> Acked-by:
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Antti Palosaari authored
Latest checkpatch.pl has some new requirements for coding style. Fix some of those. * remove Free Software Foundation postal address * use sizeof(*foo), not sizeof(struct foo) Signed-off-by:
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Antti Palosaari authored
* remove Free Software Foundation postal address * add one pair of parenthesis * use sizeof(*foo), not sizeof(struct foo) Signed-off-by:
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Antti Palosaari authored
Adapter is locked by I2C core already. Use unlocked i2c_transfer() version __i2c_transfer() to avoid deadlock. Signed-off-by:
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Antti Palosaari authored
Convert driver from proprietary DVB driver model to standard I2C driver model. Signed-off-by:
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Antti Palosaari authored
Write inittab using reg address auto-increment in order to reduce I/O a little bit. Signed-off-by:
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Antti Palosaari authored
Reg 0x56 should be programmed to 0x01. Add default to inittab. Reported-by:
David Howells <dhowells@redhat.com> Signed-off-by:
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Antti Palosaari authored
Optimal AGC is highly depended on used RF tuner and due to that it is already included to chip configuration. However, inittab has default AGC value, which was later replaced by one from config. Add also comment to all chip configuration options about default values and if those are needed to set or not. Reported-by:
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Antti Palosaari authored
Used synthesizer is very typical integer-N PLL, with configurable reference frequency divider, output frequency divider and of course N itself. Most common method to calculate values is first select output divider, then calculate VCO frequency and finally calculate PLL N from VCO frequency. Do it that way. Also make some cleanups for filter logic and signal strength. Signed-off-by:
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Antti Palosaari authored
TS mode was configured wrongly. Reported-by:
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Antti Palosaari authored
DIV_ROUND_CLOSEST does the job and looks better. Signed-off-by:
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Antti Palosaari authored
Switch standard I2C adapter to muxed I2C adapter. David reported that I2C adapter implementation caused deadlock. I discussed with Jean and he suggested to implement it as a multiplexed i2c adapter because tuner I2C bus could be seen like own I2C segment. Reported-by:
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Antti Palosaari authored
I2C transfer were using dynamic stack allocation. Get rid of it. Signed-off-by:
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Antti Palosaari authored
I2C transfer were using dynamic stack allocation. Get rid of it. Signed-off-by:
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Antti Palosaari authored
It is Montage M88TS2022 DVB-S/S2 silicon tuner driver. Signed-off-by:
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Antti Palosaari authored
It is Montage M88DS3103 DVB-S/S2 demodulator driver. Signed-off-by:
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Antti Palosaari authored
Device has following chips: Empia EM28178, Montage M88DS3103, Montage M88TS2022, Allegro A8293. Signed-off-by:
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Antti Palosaari authored
M88TS2022 is DVB-S/S2 RF tuner used usually in conjunction with Montage M88DS3103 DVB-S/S2 demodulator. Signed-off-by:
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Antti Palosaari authored
DVB-S/S2 satellite television demodulator driver. Signed-off-by:
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Mauro Carvalho Chehab authored
PER/UCB statistics are collected once on each 1 second. However, it doesn't provide the total number of packets needed to calculate PER. Yet, as we know the bit rate, it is possible to estimate such number. So, do it. Signed-off-by:
Patrick Boettcher <pboettcher@kernellabs.com>
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Mauro Carvalho Chehab authored
On dib8000, the BER statistics are updated on every 1.25e6 bits. Adjust the code to only update the statistics after having it done. Signed-off-by:
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Mauro Carvalho Chehab authored
On dib8000, the block error count is a monotonic 32 bits register. With DVBv5 stats, we use a 64 bits counter, that it is reset when a new channel is tuned. Change the UCB counting start from 0 and to be returned with 64 bits, just like the API requests. Signed-off-by:
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Mauro Carvalho Chehab authored
Use multiple linear segments to better interpolate the dBm for the signal strength. The table that converts from linear strength to dB was empirically determinated with the help of a signal generator (DTA-2111). The entries from -35dBm to -22.5dBm were taken using just the signal generator and the board. For the entries from -36dBm to -51dBm, a 16 dB tap was used, in order to extend its range. Signals below to -51dBm are just linearly interpolated. Signed-off-by:
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Mauro Carvalho Chehab authored
Better to have Signal strength in dB. This takes a very rough estimation for the signal strength, that was calibrated using a Dektec DTA-2111 Gold RF generator and a Pixelview dib8076 stick. It estimates the signal strength using a linear equation where: - the max is -22.5 dBm, with returns 55953 - the min is -35.0 dBm, with returns 50110 With -22dBm, the signal strengh is returned as 65535. Unfortunately, the min strength generated with DTA-2111 is -35dBm. It should be noticed that approximating it by a linear equation is not right. I should probably be splitting it into 0.5 dB linear segments, in order to get a higher precision, just like it is done on mb86a20s, but that would force me to add some attenuators, in order to get dB levels below -35dBm, which is, btw, strong enough to get signal lock. Signed-off-by:
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