Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/dvb-frontends/stv0367.c:791:1: warning: 'stv0367_writeregs.constprop.4' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer. Considering that I2C
transfers are generally limited, and that devices used on USB has a
max data length of 64 bytes for	the control URBs.
So, it seem safe to use 64 bytes as the hard limit for all those devices.
 On most cases, the limit is a way lower than that, but	this limit
is small enough to not affect the Kernel stack, and it is a no brain
limit, as using smaller ones would require to either carefully each
driver or to take a look on each datasheet.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/dvb-frontends/stb0899_drv.c:540:1: warning: 'stb0899_write_regs' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer. Considering that I2C
transfers are generally limited, and that devices used on USB has a
max data length of 64 bytes for	the control URBs.
So, it seem safe to use 64 bytes as the hard limit for all those devices.
 On most cases, the limit is a way lower than that, but	this limit
is small enough to not affect the Kernel stack, and it is a no brain
limit, as using smaller ones would require to either carefully each
driver or to take a look on each datasheet.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/dvb-frontends/af9013.c:77:1: warning: 'af9013_wr_regs_i2c' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/af9033.c:188:1: warning: 'af9033_wr_reg_val_tab' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/af9033.c:68:1: warning: 'af9033_wr_regs' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/bcm3510.c:230:1: warning: 'bcm3510_do_hab_cmd' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/cxd2820r_core.c:84:1: warning: 'cxd2820r_rd_regs_i2c.isra.1' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/rtl2830.c:56:1: warning: 'rtl2830_wr' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/rtl2832.c:187:1: warning: 'rtl2832_wr' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/tda10071.c:52:1: warning: 'tda10071_wr_regs' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/tda10071.c:84:1: warning: 'tda10071_rd_regs' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer. Considering that I2C
transfers are generally limited, and that devices used on USB has a
max data length of 64 bytes for	the control URBs.
So, it seem safe to use 64 bytes as the hard limit for all those devices.
 On most cases, the limit is a way lower than that, but	this limit
is small enough to not affect the Kernel stack, and it is a no brain
limit, as using smaller ones would require to either carefully each
driver or to take a look on each datasheet.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/dvb-frontends/bcm3510.c:230:1: warning: 'bcm3510_do_hab_cmd' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/itd1000.c:69:1: warning: 'itd1000_write_regs.constprop.0' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/mt312.c:126:1: warning: 'mt312_write' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/nxt200x.c:111:1: warning: 'nxt200x_writebytes' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/stb6100.c:216:1: warning: 'stb6100_write_reg_range.constprop.3' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/stv6110.c:98:1: warning: 'stv6110_write_regs' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/stv6110x.c:85:1: warning: 'stv6110x_write_regs' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/tda18271c2dd.c:147:1: warning: 'WriteRegs' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/zl10039.c:119:1: warning: 'zl10039_write' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer. Considering that I2C
transfers are generally limited, and that devices used on USB has a
max data length of 64 bytes for the control URBs.
So, it seem safe to use 64 bytes as the hard limit for all those devices.
 On most cases, the limit is a way lower than that, but this limit
is small enough to not affect the Kernel stack, and it is a no brain
limit, as using smaller ones would require to either carefully each
driver or to take a look on each datasheet.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/dvb-frontends/s5h1420.c:851:1: warning: 's5h1420_tuner_i2c_tuner_xfer' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer.
In the specific case of this frontend, only ttpci uses it. The maximum
number of messages there is two, on I2C read operations. As the logic
can add an extra operation, change the size to 3.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

On this arch, usec is not unsigned long. So, we need to typecast,
in order to remove those warnings:
	drivers/media/usb/uvc/uvc_video.c: In function 'uvc_video_clock_update':
	drivers/media/usb/uvc/uvc_video.c:678:2: warning: format '%lu' expects argument of type 'long unsigned int', but argument 9 has type '__kernel_suseconds_t' [-Wformat]
	drivers/staging/media/lirc/lirc_serial.c: In function 'irq_handler':
	drivers/staging/media/lirc/lirc_serial.c:707:5: warning: format '%lx' expects argument of type 'long unsigned int', but argument 6 has type '__kernel_suseconds_t' [-Wformat]
	drivers/staging/media/lirc/lirc_serial.c:707:5: warning: format '%lx' expects argument of type 'long unsigned int', but argument 7 has type '__kernel_suseconds_t' [-Wformat]
	drivers/staging/media/lirc/lirc_serial.c:719:5: warning: format '%lx' expects argument of type 'long unsigned int', but argument 6 has type '__kernel_suseconds_t' [-Wformat]
	drivers/staging/media/lirc/lirc_serial.c:719:5: warning: format '%lx' expects argument of type 'long unsigned int', but argument 7 has type '__kernel_suseconds_t' [-Wformat]
	drivers/staging/media/lirc/lirc_serial.c:728:6: warning: format '%lx' expects argument of type 'long unsigned int', but argument 6 has type '__kernel_suseconds_t' [-Wformat]
	drivers/staging/media/lirc/lirc_serial.c:728:6: warning: format '%lx' expects argument of type 'long unsigned int', but argument 7 has type '__kernel_suseconds_t' [-Wformat]
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Fix the following warnings:
	drivers/media/rc/fintek-cir.c: In function 'fintek_cr_write':
	drivers/media/rc/fintek-cir.c:45:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/fintek-cir.c:46:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/fintek-cir.c: In function 'fintek_cr_read':
	drivers/media/rc/fintek-cir.c:54:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/fintek-cir.c:55:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/fintek-cir.c: In function 'fintek_config_mode_enable':
	drivers/media/rc/fintek-cir.c:80:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/fintek-cir.c:81:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/fintek-cir.c: In function 'fintek_config_mode_disable':
	drivers/media/rc/fintek-cir.c:87:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c: In function 'nvt_cr_write':
	drivers/media/rc/nuvoton-cir.c:45:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c:46:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c: In function 'nvt_cr_read':
	drivers/media/rc/nuvoton-cir.c:52:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c:53:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c: In function 'nvt_efm_enable':
	drivers/media/rc/nuvoton-cir.c:74:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c:75:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c: In function 'nvt_efm_disable':
	drivers/media/rc/nuvoton-cir.c:81:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c: In function 'nvt_select_logical_dev':
	drivers/media/rc/nuvoton-cir.c:91:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c:92:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
Those are caused because the I/O port is u32, instead of u8.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

on ia64, those warnings appear:
	drivers/media/radio/si470x/radio-si470x-i2c.c:470:12: warning: 'si470x_i2c_suspend' defined but not used [-Wunused-function]
	drivers/media/radio/si470x/radio-si470x-i2c.c:487:12: warning: 'si470x_i2c_resume' defined but not used [-Wunused-function]
They're caused because the PM logic uses this define:
	#define SET_SYSTEM_SLEEP_PM_OPS()
With is only defined for CONFIG_PM_SLEEP.
So, change the logic there to test for CONFIG_PM_SLEEP, instead of
CONFIG_PM.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Simplify the logic that	calculates the carrier,	and removes a warning
on avr32 arch:
        drivers/media/rc/iguanair.c: In function 'iguanair_set_tx_carrier':
        drivers/media/rc/iguanair.c:304: warning: 'sevens' may be used uninitialized in this function
Signed-off-by: NSean Young <sean@mess.org>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

On avr32 arch, we get those warnings:
	drivers/media/radio/tef6862.c:59:1: warning: "MODE_SHIFT" redefined
	In file included from /devel/v4l/ktest-build/arch/avr32/include/asm/ptrace.h:11,
	arch/avr32/include/uapi/asm/ptrace.h:41:1: warning: this is the location of the previous definition
Prefix MSA_ to the MSA register bitmap macros, to avoid reusing the same symbol.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

	drivers/media/pci/cx18/cx18-driver.c: In function 'cx18_read_eeprom':
	drivers/media/pci/cx18/cx18-driver.c:357:1: warning: the frame size of 1072 bytes is larger than 1024 bytes [-Wframe-larger-than=]
That happens because the routine allocates 256 bytes for an eeprom buffer, plus
the size of struct i2c_client, with is big.
Change the logic to dynamically allocate/deallocate space for struct i2c_client,
instead of  using the stack.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This driver uses virt_to_bus() with is deprecated on Alpha:
	drivers/media/pci/zoran/zoran_device.c: In function 'zr36057_set_vfe':
	drivers/media/pci/zoran/zoran_device.c:451:3: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
	drivers/media/pci/zoran/zoran_device.c:453:3: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
	drivers/media/pci/zoran/zoran_device.c: In function 'zr36057_set_jpg':
	drivers/media/pci/zoran/zoran_device.c:796:2: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
	drivers/media/pci/zoran/zoran_driver.c: In function 'v4l_fbuffer_alloc':
	drivers/media/pci/zoran/zoran_driver.c:241:3: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
	drivers/media/pci/zoran/zoran_driver.c:245:3: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
	drivers/media/pci/zoran/zoran_driver.c: In function 'jpg_fbuffer_alloc':
	drivers/media/pci/zoran/zoran_driver.c:334:3: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
	drivers/media/pci/zoran/zoran_driver.c:347:5: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
	drivers/media/pci/zoran/zoran_driver.c:366:6: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
As we're not even sure if it works on Alpha, better to just disable its compilation there.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

On alpha, allyesconfig doesn't have CONFIG_PM, and produces the following warnings:
	drivers/media/radio/radio-shark.c:274:13: warning: 'shark_resume_leds' defined but not used [-Wunused-function]
	drivers/media/radio/radio-shark2.c:240:13: warning: 'shark_resume_leds' defined but not used [-Wunused-function]
That's because those functions are used only at device resume.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

There's no need to zero the buffer, as if the routine gets an error,
rc will be different than one.
That fixes the following warning:
	drivers/media/tuners/tda9887.c: In function 'tda9887_status':
	drivers/media/tuners/tda9887.c:539:2: warning: value computed is not used [-Wunused-value]
While here, make fix the CodingStyle on this function.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This patch adds support to ST RC driver, which is basically a IR/UHF
receiver and transmitter. This IP (IRB) is common across all the ST
parts for settop box platforms. IRB is embedded in ST COMMS IP block.
It supports both Rx & Tx functionality.
This driver adds only Rx functionality via LIRC codec.
Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@st.com>
Acked-by: NSean Young <sean@mess.org>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Acked-by: NLad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Acked-by: NLad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Acked-by: NLad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.
Signed-off-by: NSachin Kamat <sachin.kamat@linaro.org>
Acked-by: NLad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The helper function is defined by a macro that is erroneously called
with the compose rectangle instead of the crop rectangle. Fix it.
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NSakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Adds the driver for the LM3560, dual LED Flash The LM3560 has two 1A
constant current driver for high current white LEDs.

It is controlled via an I2C compatible interface(up to 400kHz).

Each flash brightness, torch  brightness and enable/disable can be
controlled independantly, but flash timeout and operation mode are shared.
Signed-off-by: NDaniel Jeong <gshark.jeong@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Components are RTL2832P + R828D + MN88472.
Currently support only DVB-T as there is no driver for MN88472 demod.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

RTL2832P is version of RTL2832U with extra TS interface.
As for now, we support only integrated RTL2832 demod.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Use R820T config for R828D too as those are about same tuner.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Small changes in order to support tuner version R828D @ 16 MHz clock.
There was 'vco_fine_tune' check, which seems to adjust synthesizer
output divider (mixer dix / LO div / Rout) by one. R828D seems to
return vco_fine_tune=1 every time and that condition causes tuning
fail as output divider was increased by one.
Resolve problem by skipping whole condition in case of R828D tuner.
Just to mention, other tuner, R820T, seems to return 2 here.
Synthesizer maximum frequency check was hard coded to check synthesizer N
and thus worked correctly only for clock frequencies around 30 MHz.
As whole test is quite useless in any case, I removed it totally.
Signed-off-by: NAntti Palosaari <crope@iki.fi>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

v3.12-rc fails to build with this error:
drivers/media/i2c/ths8200.c:49:2: error: unknown field 'bt' specified in initializer
drivers/media/i2c/ths8200.c:50:3: error: field name not in record or union initializer
drivers/media/i2c/ths8200.c:50:3: error: (near initialization for 'ths8200_timings_cap.reserved')
drivers/media/i2c/ths8200.c:51:3: error: field name not in record or union initializer
drivers/media/i2c/ths8200.c:51:3: error: (near initialization for 'ths8200_timings_cap.reserved')
...
with gcc 4.5.4.  This error was not detected in builds prior to v3.12-rc.
This patch fixes this.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Cc: stable@vger.kernel.org # For kernel v3.12
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This patch adds support for the UB435-Q V2. You might need to
use the device once with the Windows driver provided by KWorld
in order to permanently reprogram the device descriptors. Thanks
to Jarod Wilson for the initial attempt at adding support for this
device.

[m.chehab@samsung.com: Fixed Whitespace mangling, Coding Style and
 improved the error handling at DVB attach]
Signed-off-by: NJean-Francois Thibert <jfthibert@google.com>
Reviewed-by: NFrank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Fix build error when VIDEOBUF2_CORE=m and USB_MSI3101=y.
drivers/built-in.o: In function `msi3101_buf_queue':
sdr-msi3101.c:(.text+0x1298d6): undefined reference to `vb2_buffer_done'
drivers/built-in.o: In function `msi3101_cleanup_queued_bufs':
sdr-msi3101.c:(.text+0x1299c7): undefined reference to `vb2_buffer_done'
drivers/built-in.o: In function `msi3101_isoc_handler':
sdr-msi3101.c:(.text+0x12a08d): undefined reference to `vb2_plane_vaddr'
sdr-msi3101.c:(.text+0x12a0b9): undefined reference to `vb2_buffer_done'
drivers/built-in.o: In function `msi3101_probe':
sdr-msi3101.c:(.text+0x12a1c5): undefined reference to `vb2_vmalloc_memops'
sdr-msi3101.c:(.text+0x12a1d7): undefined reference to `vb2_queue_init'
drivers/built-in.o:(.rodata+0x34cf0): undefined reference to `vb2_ioctl_reqbufs'
drivers/built-in.o:(.rodata+0x34cf4): undefined reference to `vb2_ioctl_querybuf'
drivers/built-in.o:(.rodata+0x34cf8): undefined reference to `vb2_ioctl_qbuf'
drivers/built-in.o:(.rodata+0x34d00): undefined reference to `vb2_ioctl_dqbuf'
drivers/built-in.o:(.rodata+0x34d04): undefined reference to `vb2_ioctl_create_bufs'
drivers/built-in.o:(.rodata+0x34d08): undefined reference to `vb2_ioctl_prepare_buf'
drivers/built-in.o:(.rodata+0x34d18): undefined reference to `vb2_ioctl_streamon'
drivers/built-in.o:(.rodata+0x34d1c): undefined reference to `vb2_ioctl_streamoff'
drivers/built-in.o:(.rodata+0x35580): undefined reference to `vb2_fop_read'
drivers/built-in.o:(.rodata+0x35588): undefined reference to `vb2_fop_poll'
drivers/built-in.o:(.rodata+0x35598): undefined reference to `vb2_fop_mmap'
drivers/built-in.o:(.rodata+0x355a0): undefined reference to `vb2_fop_release'
drivers/built-in.o:(.data+0x23b40): undefined reference to `vb2_ops_wait_prepare'
drivers/built-in.o:(.data+0x23b44): undefined reference to `vb2_ops_wait_finish'
Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.
Signed-off-by: NJingoo Han <jg1.han@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

i2c_adap is a field of a struct and will always be allocated so
its address will never be null.
Suggested by coccinelle, manually verified.
Signed-off-by: NAlexandru Juncu <alexj@rosedu.org>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: NMichael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Signed-off-by: NValentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

The em28xx driver only calls subdevices' .s_power() method to power them
down, relying on the hardware to wake up automatically, which is usually
the case with tuners. This was acceptable with the old .standby() method,
but is wrong with .s_power(). Fixing the driver would be difficult due to
a broad supported hardware base. Instead this patch makes use of the
unbalanced_power soc-camera subdevice flag to tell the ov2640 driver to
balance calls to v4l2_clk_enable() and v4l2_clk_disable() internally.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Some non soc-camera drivers, e.g. em28xx, use subdevice drivers, originally
written for soc-camera, which use soc_camera_power_on() and
soc_camera_power_off() helpers to implement their .s_power() methods. Those
helpers in turn can enable and disable a clock, if it is supplied to them
as a parameter. This works well when camera host drivers balance their
calls to subdevices' .s_power() methods. However, some such drivers fail to
do that, which leads to unbalanced calls to v4l2_clk_enable() /
v4l2_clk_disable(), which then in turn produce kernel warnings. Such
behaviour is wrong and should be fixed, however, sometimes it is difficult,
because some of those drivers are rather old and use lots of subdevices,
which all should be tested after such a fix. To support such drivers this
patch adds a work-around, allowing host drivers or platforms to set a flag,
in which case soc-camera helpers will only enable the clock, if it is
disabled, and disable it only once on the first call to .s_power(0).
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Camera sensors usually require a master clock for data sampling. This patch
registers such a clock source for em28xx cameras. This fixes the currently
broken em28xx ov2640 camera support and can also be used by other camera
sensors.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

To obtain a clock reference consumers supply their device object to the
V4L2 clock framework. The latter then uses the consumer device name to
find a matching clock. For that to work V4L2 clock providers have to
provide the same device name, when registering clocks. This patch adds
a helper macro to generate a suitable device name for I2C devices.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

Many bridges and video host controllers supply fixed rate always on clocks
to their I2C devices. This patch adds two simple helpers to register and
unregister such a clock.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

This prepares soc-camera to use struct v4l2_subdev_platform_data for its
subdevice-facing API, which would allow subdevice driver re-use.
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>