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Reported by kmemleak.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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struct dvb_usb_device *d can never be NULL so don't waste time
checking for this.
Rationale: the urb's context is set when usb_fill_bulk_urb() is called
in dib0700_rc_setup(), and never changes after that. d is dereferenced
unconditionally in dib0700_rc_setup() so it can't be NULL or the
driver would crash right away.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This patch saves 255 bytes of stack on usb_probe() by removing
a char array. In some platforms this is represents a substantial save.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The au8522 driver programs the tuner after programming the demodulator,
but the tuner should be programmed first. This patch fixes this behavior.
EDIT: Apparantly Devin created a similar patch some time ago, but hasn't
submitted it for merge. I never saw his patch, but I thank him anyhow
for his efforts. In addition, Devin pointed out a flaw in my patch:
This newly generated patch takes Devin's comments into account.
Thanks-to: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Cc: stable@kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Yet another device ID that has started showing up in the wild.
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Media-related drivers living outside drivers/media/ (such as the UVC
gadget driver in drivers/usb/gadget/) rely on the media core being
initialized before they're probed. As drivers/usb/ is linked before
drivers/media/, this is currently not the case and will lead to crashes
if the drivers are not compiled as modules.
Register media_devnode_init() as a subsys_initcall() instead of
module_init() to fix this.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Bhupesh Sharma <bhupesh.sharma@st.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Tested-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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As the V4L2 based UVC webcam gadget (g_webcam) expects the
'videodev' to present when the 'webcam_bind' routine is called,
so 'videodev' should be available as early as possible.
Now, when 'g_webcam' is built as a module (i.e. not a part of
kernel) the late availability of 'videodev' is OK, but if
'g_webcam' is built statically as a part of the kernel,
the kernel crashes (a sample crash dump using Designware 2.0 UDC
is provided below).
To solve the same, this patch makes 'videodev_init' as a subsys initcall.
Kernel Crash Dump:
------------------
designware_udc designware_udc: Device Synopsys UDC probed csr 90810000: plug 90812000
g_webcam gadget: uvc_function_bind
Unable to handle kernel NULL pointer dereference at virtual address 000000e4
pgd = 80004000
[000000e4] *pgd=00000000
Internal error: Oops: 5 [#1] SMP
Modules linked in:
CPU: 0 Not tainted (3.3.0-rc3-13888-ge774c03-dirty #20)
PC is at do_raw_spin_lock+0x10/0x16c
LR is at _raw_spin_lock+0x10/0x14
pc : [<8019e344>] lr : [<804095c0>] psr: 60000013
sp : 8f839d20 ip : 8f839d50 fp : 8f839d4c
r10: 80760a94 r9 : 8042de98 r8 : 00000154
r7 : 80760e94 r6 : 805cfc10 r5 : 8fb6a008 r4 : 8fb6a008
r3 : 805dd0c8 r2 : 8f839d48 r1 : 805cfc08 r0 : 000000e0
Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel
Control: 10c5387d Table: 0000404a DAC: 00000015
Process swapper/0 (pid: 1, stack limit = 0x8f8382f0)
Stack: (0x8f839d20 to 0x8f83a000)
9d20: ffffffff ffffffff 8fb6a008 8fb6a008 805cfc10 80760e94 00000154 8042de98
9d40: 8f839d5c 8f839d50 804095c0 8019e340 8f839d7c 8f839d60 80222b28 804095bc
9d60: 8fb12b80 8fb6a008 8fb6a010 805cfc08 8f839dc4 8f839d80 80223db8 80222adc
9d80: 8f839dac 8f839d90 8022baa0 8019e2e8 8fb6a008 8075e7f4 8fb6a008 8fb6a008
9da0: 00000000 8fb6a008 80760e94 00000154 8042de98 80760a94 8f839ddc 8f839dc8
9dc0: 802242a8 80223d1c 8fb12b80 8fb6a000 8f839e1c 8f839de0 8030132c 80224298
9de0: 80223ce8 803f2ee8 00000001 804f7750 8f839e1c 8f824008 805cff20 8f824000
9e00: 8fb6a000 ffffffff 00000000 8f8d4880 8f839e4c 8f839e20 80562e3c 80301100
9e20: 00000000 8fb13140 8f824008 805cff20 8042aa68 8f824000 8042aa8c 805e4d40
9e40: 8f839e64 8f839e50 802d20c4 80562ba8 805d0058 805cff20 8f839e8c 8f839e68
9e60: 80563034 802d206c 8042aa8c 805cff20 8f8d4880 00000000 805cfc08 8fb12a40
9e80: 8f839e9c 8f839e90 805630c4 80562ec4 8f839ebc 8f839ea0 802d2364 805630b0
9ea0: 805cfeac 8f8d4880 805cfbe8 807605e8 8f839ed4 8f839ec0 80562b3c 802d22cc
9ec0: 80562ac4 8f8d4880 8f839f04 8f839ed8 802d0b40 80562ad0 8f839ef4 805cff90
9ee0: 805cff90 805cfb98 00000000 00000000 805cfbe8 805e4d40 8f839f3c 8f839f08
9f00: 802cd078 802d0a18 00000000 802d0a0c 00000000 8fb9ba00 802d0a0c 805cff90
9f20: 00000013 00000000 00000000 805e4d40 8f839f5c 8f839f40 802cf390 802ccff0
9f40: 00000003 00000003 804fb598 00000000 8f839f74 8f839f60 802d2554 802cf2a0
9f60: 8f838000 8057731c 8f839f84 8f839f78 80562b90 802d24d0 8f839fdc 8f839f88
9f80: 800085d4 80562b84 805af2ac 805af2ac 80562b78 00000000 00000013 00000000
9fa0: 00000000 00000000 8f839fc4 8f839fb8 80043dd0 8057706c 8057731c 8002875c
9fc0: 00000013 00000000 00000000 00000000 8f839ff4 8f839fe0 805468d4 800085a0
9fe0: 00000000 80546840 00000000 8f839ff8 8002875c 8054684c 51155555 55545555
Backtrace:
[<8019e334>] (do_raw_spin_lock+0x0/0x16c) from [<804095c0>] (_raw_spin_lock+0x10/0x14)
r9:8042de98 r8:00000154 r7:80760e94 r6:805cfc10 r5:8fb6a008
r4:8fb6a008
[<804095b0>] (_raw_spin_lock+0x0/0x14) from [<80222b28>] (get_device_parent+0x58/0x1c0)
[<80222ad0>] (get_device_parent+0x0/0x1c0) from [<80223db8>] (device_add+0xa8/0x57c)
r6:805cfc08 r5:8fb6a010 r4:8fb6a008 r3:8fb12b80
[<80223d10>] (device_add+0x0/0x57c) from [<802242a8>] (device_register+0x1c/0x20)
[<8022428c>] (device_register+0x0/0x20) from [<8030132c>] (__video_register_device+0x238/0x484)
r4:8fb6a000 r3:8fb12b80
[<803010f4>] (__video_register_device+0x0/0x484) from [<80562e3c>] (uvc_function_bind+0x2a0/0x31c)
[<80562b9c>] (uvc_function_bind+0x0/0x31c) from [<802d20c4>] (usb_add_function+0x64/0x118)
[<802d2060>] (usb_add_function+0x0/0x118) from [<80563034>] (uvc_bind_config+0x17c/0x1ec)
r5:805cff20 r4:805d0058
[<80562eb8>] (uvc_bind_config+0x0/0x1ec) from [<805630c4>] (webcam_config_bind+0x20/0x28)
r8:8fb12a40 r7:805cfc08 r6:00000000 r5:8f8d4880 r4:805cff20
r3:8042aa8c
[<805630a4>] (webcam_config_bind+0x0/0x28) from [<802d2364>] (usb_add_config+0xa4/0x124)
[<802d22c0>] (usb_add_config+0x0/0x124) from [<80562b3c>] (webcam_bind+0x78/0xb4)
r6:807605e8 r5:805cfbe8 r4:8f8d4880 r3:805cfeac
[<80562ac4>] (webcam_bind+0x0/0xb4) from [<802d0b40>] (composite_bind+0x134/0x308)
r4:8f8d4880 r3:80562ac4
[<802d0a0c>] (composite_bind+0x0/0x308) from [<802cd078>] (dw_udc_start+0x94/0x2bc)
[<802ccfe4>] (dw_udc_start+0x0/0x2bc) from [<802cf390>] (usb_gadget_probe_driver+0xfc/0x180)
[<802cf294>] (usb_gadget_probe_driver+0x0/0x180) from [<802d2554>] (usb_composite_probe+0x90/0xb4)
r6:00000000 r5:804fb598 r4:00000003 r3:00000003
[<802d24c4>] (usb_composite_probe+0x0/0xb4) from [<80562b90>] (webcam_init+0x18/0x24)
r5:8057731c r4:8f838000
[<80562b78>] (webcam_init+0x0/0x24) from [<800085d4>] (do_one_initcall+0x40/0x184)
[<80008594>] (do_one_initcall+0x0/0x184) from [<805468d4>] (kernel_init+0x94/0x134)
[<80546840>] (kernel_init+0x0/0x134) from [<8002875c>] (do_exit+0x0/0x6f8)
r5:80546840 r4:00000000
Code: e1a0c00d e92ddbf0 e24cb004 e24dd008 (e5902004)
---[ end trace 7ecca37f36fbdc06 ]---
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@st.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The MT9M032 is a parallel 1.6MP sensor from Micron controlled through I2C.
The driver creates a V4L2 subdevice. It currently supports cropping, gain,
exposure and v/h flipping controls in monochrome mode with an
external pixel clock.
[Lots of clean up, fixes and enhancements]
Signed-off-by: Martin Hostettler <martin@neutronstar.dyndns.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Compute the PLL parameters at runtime using the generic Aptina PLL
helper.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Add a generic helper function to compute PLL parameters for PLL found in
several Aptina sensors.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The fields are set but never used, remove them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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PT1 and PT2 do not have net functions.
Signed-off-by: Akihiro Tsukada <tskd2@yahoo.co.jp>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Current default value of "nr_tables" option corresponds to the DMA
buffer of about 10 to 48 seconds long, which is obviously too much.
Signed-off-by: Akihiro Tsukada <tskd2@yahoo.co.jp>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This patch adds a data integrity check using the sequence counter and
error flags added by the bridge chip.
Signed-off-by: Akihiro Tsukada <tskd2@yahoo.co.jp>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The driver started a kthread to poll the DMA buffers soon after probing,
which relsuleted in 1000/sec sleeps and wakeups of the thread doing nothing
useful until someone started feeding.
This patch changes the creation and destruction of the kthread depending on the number of users.
Signed-off-by: Akihiro Tsukada <tskd2@yahoo.co.jp>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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These arrays were embedded in the struct itself, but they weren't
used by anyone, since urbs are now dinamically allocated
at em28xx_usb_isoc_ctl struct.
Tested by compilation only.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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There are couple places where we check unsigned values for negative. I
changed ->gpin_nr to signed because in gpio_ir_recv_probe() we do:
if (pdata->gpio_nr < 0)
return -EINVAL;
I also change gval to a signed int in gpio_ir_recv_irq() because that's
the type that gpio_get_value_cansleep() returns and we test for negative
returns.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Trilok Soni <tsoni@codeaurora.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Replaced spaces with tabs
Signed-off-by: Andrew Miller <amiller@amilx.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Fix following compilation error when CONFIG_PM_SLEEP is disabled:
CC drivers/media/video/s5p-fimc/mipi-csis.o
drivers/media/video/s5p-fimc/mipi-csis.c: In function ‘s5pcsis_remove’:
drivers/media/video/s5p-fimc/mipi-csis.c:956: error: implicit declaration of function ‘s5pcsis_suspend’
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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drivers/media/video/w9966.c: In function ‘__check_pardev’:
drivers/media/video/w9966.c:136:1: warning: return from incompatible pointer type [enabled by default]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Fix the following build error:
LD .tmp_vmlinux1
drivers/built-in.o: In function `mx2_camera_init_videobuf':
clkdev.c:(.text+0xcfaf4): undefined reference to `vb2_dma_contig_memops'
drivers/built-in.o: In function `mx2_camera_probe':
clkdev.c:(.devinit.text+0x5734): undefined reference to `vb2_dma_contig_init_ctx'
clkdev.c:(.devinit.text+0x5778): undefined reference to `vb2_dma_contig_cleanup_ctx'
drivers/built-in.o: In function `mx2_camera_remove':
clkdev.c:(.devexit.text+0x89c): undefined reference to `vb2_dma_contig_cleanup_ctx'
commit c6a41e3271 ([media] media i.MX27 camera: migrate driver to videobuf2)
missed to select VIDEOBUF2_DMA_CONTIG in Kconfig.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Make the VIDIOC_G/S_SELECTION ioctls documentation more consistent
with the rest of media Docbook, use capital letters where necessary
and correct few minor errors.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This is a v4l2 bridge driver for Blackfin video capture device, support ppi and eppi interface.
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This is a v4l2 sensor-level driver for the ST VS6624 camera.
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This driver is a v4l2 subdevice driver to support Analog Devices ADV7183 SDTV video decoder.
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Support for m88rs2000 module.
The driver also attempts to overcome occasional lock problems.
Call backs are now used for read_status, signal level and SNR.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This field is handled internally by the DVB core, with uses the
selected delivery system to fill it, when a DVBv3 call is
handled. So, drivers should not touch on it.
Cc: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Support for m88rs2000 chip used in lmedm04 driver.
Note there are still lock problems.
Slow channel change due to the large block of registers sent in set_frontend.
Version 2 differences.
Front end is completely shut down when in sleep mode. This allow user to regain
control of device.
Kaffeine scan problem solved by removing register calls from get_frontend.
Kaffeine seems to call get_frontend when updating signal data. This can happen
in the middle of a tune stalling the driver.
Change calculations to those in the DS3000 driver.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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These were in the original lme2510 device driver.
Removing them significantly speeds up the driver.
All tuners tested.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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In CDRXD(), Negative number is assigned to unsigned variable
'state->noise_cal.tdCal2.
Members of 'SNoiseCal' should be 'signed short'.
Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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DibAcquireLock() is implemented as mutex_lock_interruptible()
but the driver does not handle unsuccessful locking.
As a result it may lead to unlock of an unheld mutex.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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There are several error paths, where &state->platform.risc.mem_mbx_lock
is not unlocked. The patch fixes it.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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linux-next:
I like to spend some time reading code, in doing so I have found some
typos in some of the comments.
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Ryley and me tested several eLNA configuration values with both a rooftop
and a portable antenna.
Ryley fuond out that the best value for his Elgato stick is indeed the current
default value 0xC0.
Instead, my stick is not capable of tuning VHF channels with 0xC0. With 0x80,
VHF works but the tuner sensitivity with the portable antenna is poor.
Instead, the value 0xA0 works with VHF and also gives good performance with
both the rooftop and the portable antenna.
So we concluded that devices built on the reference design work best with 0xA0,
while custom designs (Elgato, PCTV) seem to require 0xC0.
I also removed the unused parameter "minor" in struct as102_dev_t.
Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
Signed-off-by: Ryley Angus <rangus@student.unimelb.edu.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This patch fixes a regression in kernel 3.3 due to this patch:
http://patchwork.linuxtv.org/patch/8332/
That patch changes "#pragma pack(1)" with "__packed" attributes, but it is not
complete. In fact, in the as102 driver there are a lot of structs/unions
defined inside other structs/unions.
When the "__packed" attribute is applied only on the external struct, it will
not affect the internal struct definitions.
So the regression is fixed by specifiying the "__packed" attribute also on the
internal structs.
This patch should go into 3.3, as it fixes a regression introduced in the new
kernel version.
Signed-off-by: Gianluca Gennari <gennarone@gmail.com>
Signed-off-by: Ryley Angus <rangus@student.unimelb.edu.au>
Cc: stable@kernel.org # for v3.3
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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This patch add CI support to az6007 driver.
Signed-off-by: Jose Alberto Reguero <jareguero@telefonica.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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In cx231xx_v4l2_close() there are two calls to
cx231xx_release_resources(dev) followed by kfree(dev). That is a
problem since cx231xx_release_resources() already kfree()'s its
argument, so we end up doing a double free.
Easily resolved by just removing the redundant kfree() calls after the
calls to cx231xx_release_resources().
I also changed the 'dev = NULL' assignments (which are rather
pointless since 'dev' is about to go out of scope), to 'fh->dev = NULL'
since it looks to me that that is what was actually intended.
And I removed the 'dev = NULL' assignment at the end of
cx231xx_release_resources() since it is pointless.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Remove delays added for STV0288 frontend.
This patch significantly speeds up channel change and scan.
It requires patch 10161-STV0288 increase delay between carrier search.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The current delay of 30uS is too short to recover any carrier.
In the lmedm04 driver delays were added to overcome carrier lock
problems. The typical delay was 30mS (2 x 15ms register write
0x2c and read 0x24).
Other drivers that use STV0288 don't appear to have any delay are
likely to have also suffered this problem.
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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There's no known problem here, but this is one of only two non-arch files
in the kernel which use asm/atomic.h instead of linux/atomic.h.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The camera requires the PROBE_DEF quirk. Add a corresponding entry in
the device IDs list.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Userptr can be very useful if a UVC camera is requested to use video
buffers allocated by another processing device. So that buffers don't
need to be copied.
Signed-off-by: Javier Martin <javier.martin@vista-silicon.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Support 32-bit/64-bit compatibility for the the UVCIOC_ ioctls.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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-EINVAL is the wrong error code in that case, replace it with -ENOTTY.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Drivers implementing custom ioctls need to handle 32-bit/64-bit
compatibility themselves. Provide them with a way to do so.
To avoid circular module dependencies, merge the v4l2-compat-ioctl32
module into videodev. There is no point in keeping them separate, as the
v4l2_compat_ioctl32() function is required by videodev if CONFIG_COMPAT
is set anyway.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Fix one typo and use 'Microseconds' instead of 'useconds' in the pre-emphasis
descriptions.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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* tag 'v3.3': (1646 commits)
Linux 3.3
Don't limit non-nested epoll paths
netfilter: ctnetlink: fix race between delete and timeout expiration
ipv6: Don't dev_hold(dev) in ip6_mc_find_dev_rcu.
nilfs2: fix NULL pointer dereference in nilfs_load_super_block()
nilfs2: clamp ns_r_segments_percentage to [1, 99]
afs: Remote abort can cause BUG in rxrpc code
afs: Read of file returns EBADMSG
C6X: remove dead code from entry.S
wimax/i2400m: fix erroneous NETDEV_TX_BUSY use
net/hyperv: fix erroneous NETDEV_TX_BUSY use
net/usbnet: reserve headroom on rx skbs
bnx2x: fix memory leak in bnx2x_init_firmware()
bnx2x: fix a crash on corrupt firmware file
sch_sfq: revert dont put new flow at the end of flows
ipv6: fix icmp6_dst_alloc()
MAINTAINERS: Add Serge as maintainer of capabilities
drivers/video/backlight/s6e63m0.c: fix corruption storing gamma mode
MAINTAINERS: add entry for exynos mipi display drivers
MAINTAINERS: fix link to Gustavo Padovans tree
...
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WARNING: drivers/media/radio/built-in.o(.data+0x284): Section mismatch in reference from the variable fmr2_driver to the function .init.text:fmr2_probe()
The variable fmr2_driver references
the function __init fmr2_probe()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console
WARNING: drivers/media/built-in.o(.data+0x48200): Section mismatch in reference from the variable fmr2_driver to the function .init.text:fmr2_probe()
The variable fmr2_driver references
the function __init fmr2_probe()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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