Implement set voltage operation.
Separate TS clock as a own configuration parameter.
Add TS clock polarity parameter.

[crope@iki.fi: merge em28xx driver m88ds3103 config change patch
to that one, in order to keep build unbroken]
Signed-off-by: Nibble Max <nibble.max@gmail.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Same thing for si2157 as Antti did earlier for tda18212:

There is no need to print module name nor function name as those
are done by kernel logging system when dev_xxx logging is used and
driver is proper I2C driver.

While here, fix a typo ("unknown") in si2157_init.
Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Same thing for si2168 as Antti did earlier for tda18212:

There is no need to print module name nor function name as those
are done by kernel logging system when dev_xxx logging is used and
driver is proper I2C driver.
Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

when usb-type tuner is pulled out, user applications did not close device's FD,
and go on polling the device, we should return POLLERR directly.
Signed-off-by: Changbing Xiong <cb.xiong@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Data type of return value is unsigned int, but in function of dvb_demux_poll,
when the pointer of dmxdevfilter equals NULL, it will return -EINVAL, which
is invalid.
Signed-off-by: Changbing Xiong <cb.xiong@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Normally, ADAP_STREAMING bit is set in dvb_usb_start_feed and cleared in
dvb_usb_stop_feed.

But in exceptional cases, for example, when the tv is playing programs
and the tuner is pulled out, then dvb_usbv2_disconnect is called.

In such case, it will first call dvb_usbv2_adapter_frontend_exit to stop
dvb_frontend_thread, and then call dvb_usbv2_adapter_dvb_exit to clear
ADAP_STREAMING bit.

At this point, if dvb_frontend_thread is sleeping and waiting for
ADAP_STREAMING to be cleared to get out of sleep. then
dvb_frontend_thread can never be stoped, because clearing ADAP_STREAMING
bit is performed after dvb_frontend_thread is stopped (i.e. performed in
dvb_usbv2_adapter_dvb_exit).

So, deadlock:

[  240.822037] INFO: task khubd:497 blocked for more than 120 seconds.
[  240.822655] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  240.830493] khubd           D c0013b3c     0   497      2 0x00000000
[  240.836996] [<c0013b3c>] (__schedule+0x200/0x54c) from [<c00110f4>] (schedule_timeout+0x14c/0x19c)
[  240.845940] [<c00110f4>] (schedule_timeout+0x14c/0x19c) from [<c00137f4>] (wait_for_common+0xac/0x150)
[  240.855234] [<c00137f4>] (wait_for_common+0xac/0x150) from [<c004989c>] (kthread_stop+0x58/0x90)
[  240.864004] [<c004989c>] (kthread_stop+0x58/0x90) from [<c03b2ebc>] (dvb_frontend_stop+0x3c/0x9c)
[  240.872849] [<c03b2ebc>] (dvb_frontend_stop+0x3c/0x9c) from [<c03b2f3c>] (dvb_unregister_frontend+0x20/0xd8)
[  240.882666] [<c03b2f3c>] (dvb_unregister_frontend+0x20/0xd8) from [<c03ed938>] (dvb_usbv2_exit+0x68/0xfc)
[  240.892204] [<c03ed938>] (dvb_usbv2_exit+0x68/0xfc) from [<c03eda18>] (dvb_usbv2_disconnect+0x4c/0x70)
[  240.901499] [<c03eda18>] (dvb_usbv2_disconnect+0x4c/0x70) from [<c031c050>] (usb_unbind_interface+0x58/0x188)
[  240.911395] [<c031c050>] (usb_unbind_interface+0x58/0x188) from [<c02c3e78>] (__device_release_driver+0x74/0xd0)
[  240.921544] [<c02c3e78>] (__device_release_driver+0x74/0xd0) from [<c02c3ef0>] (device_release_driver+0x1c/0x28)
[  240.931697] [<c02c3ef0>] (device_release_driver+0x1c/0x28) from [<c02c39b8>] (bus_remove_device+0xc4/0xe4)
[  240.941332] [<c02c39b8>] (bus_remove_device+0xc4/0xe4) from [<c02c1344>] (device_del+0xf4/0x178)
[  240.950106] [<c02c1344>] (device_del+0xf4/0x178) from [<c0319eb0>] (usb_disable_device+0xa0/0x1c8)
[  240.959040] [<c0319eb0>] (usb_disable_device+0xa0/0x1c8) from [<c03128b4>] (usb_disconnect+0x88/0x188)
[  240.968326] [<c03128b4>] (usb_disconnect+0x88/0x188) from [<c0313edc>] (hub_thread+0x4d0/0x1200)
[  240.977100] [<c0313edc>] (hub_thread+0x4d0/0x1200) from [<c0049690>] (kthread+0xa4/0xb0)
[  240.985174] [<c0049690>] (kthread+0xa4/0xb0) from [<c0009118>] (ret_from_fork+0x14/0x3c)
[  240.993259] INFO: task kdvb-ad-0-fe-0:3256 blocked for more than 120 seconds.
[  241.000349] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  241.008162] kdvb-ad-0-fe-0  D c0013b3c     0  3256      2 0x00000000
[  241.014507] [<c0013b3c>] (__schedule+0x200/0x54c) from [<c03eda44>] (wait_schedule+0x8/0x10)
[  241.022924] [<c03eda44>] (wait_schedule+0x8/0x10) from [<c001120c>] (__wait_on_bit+0x74/0xb8)
[  241.031434] [<c001120c>] (__wait_on_bit+0x74/0xb8) from [<c00112b8>] (out_of_line_wait_on_bit+0x68/0x70)
[  241.040902] [<c00112b8>] (out_of_line_wait_on_bit+0x68/0x70) from [<c03e5e88>] (dvb_usb_fe_sleep+0xf4/0xfc)
[  241.050618] [<c03e5e88>] (dvb_usb_fe_sleep+0xf4/0xfc) from [<c03b4b74>] (dvb_frontend_thread+0x124/0x4e8)
[  241.060164] [<c03b4b74>] (dvb_frontend_thread+0x124/0x4e8) from [<c0049690>] (kthread+0xa4/0xb0)
[  241.068929] [<c0049690>] (kthread+0xa4/0xb0) from [<c0009118>] (ret_from_fork+0x14/0x3c)

Fix it by calling dvb_usbv2_adapter_frontend_exit() latter.

Test enviroment: odroidx2 + Hauppauge(WinTV-Aero-M)
Signed-off-by: Changbing Xiong <cb.xiong@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

COMPILE_TEST fail on (some) archs without MMU.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

vb2-dma-contig depends on HAS_DMA, but the Kbuild doesn't take
it into account at select.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

There are several arch-specific media drivers that don't
require asm-specific includes and can be successfully
compiled on x86. Add COMPILE_TEST dependency for them, in
order to allow a broader test on those drivers.

That helps static analysis tools like Coverity to discover
eventual troubles there.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

We don't need anything special to enable COMPILE_TEST for
this driver.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

That helps some static checks, so enable it. While there, it was
noticed that linux/sizes.h was missing:

drivers/media/platform/exynos4-is/mipi-csis.c: In function ‘s5pcsis_s_rx_buffer’:
drivers/media/platform/exynos4-is/mipi-csis.c:114:31: error: ‘SZ_4K’ undeclared (first use in this function)
 #define S5PCSIS_PKTDATA_SIZE  SZ_4K
                               ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Allowing COMPILE_TEST here is trivial, but there's one missing
header to be added:

drivers/media/platform/ti-vpe/vpe.c: In function ‘vpe_probe’:
drivers/media/platform/ti-vpe/vpe.c:2266:56: error: ‘SZ_32K’ undeclared (first use in this function)
  dev->base = devm_ioremap(&pdev->dev, dev->res->start, SZ_32K);
                                                        ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

By allowing compilation on all archs, we can use static
analysis tools to test this driver.

In order to do that, replace asm/sizes.h by its generic
name (linux/sizes.h), with should keep doing the right
thing.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

This patch readded a call to iss_put_clocks(), with was removed
by changeset 1153be56, causing a compilation breakage.

This reverts commit d4b32646.

drivers/media/platform/s5p-jpeg/jpeg-hw-s5p.c: In function 's5p_jpeg_clear_int':
drivers/media/platform/s5p-jpeg/jpeg-hw-s5p.c:327:16: warning: variable 'reg' set but not used [-Wunused-but-set-variable]
  unsigned long reg;
                ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/soc_camera/atmel-isi.c: In function 'start_streaming':
drivers/media/platform/soc_camera/atmel-isi.c:387:6: warning: variable 'sr' set but not used [-Wunused-but-set-variable]
  u32 sr = 0;
      ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/soc_camera/mx2_camera.c: In function 'mx27_camera_emma_prp_reset':
drivers/media/platform/soc_camera/mx2_camera.c:812:6: warning: variable 'cntl' set but not used [-Wunused-but-set-variable]
  u32 cntl;
      ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/exynos4-is/media-dev.c: In function 'fimc_md_link_notify':
drivers/media/platform/exynos4-is/media-dev.c:1102:4: warning: suggest braces around empty body in an 'else' statement [-Wempty-body]
    ; /* TODO: Link state change validation */
    ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/exynos4-is/mipi-csis.c: In function 's5pcsis_parse_dt':
drivers/media/platform/exynos4-is/mipi-csis.c:756:2: warning: comparison is always false due to limited range of data type [-Wtype-limits]
  if (state->index < 0 || state->index >= CSIS_MAX_ENTITIES)
  ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/s5p-mfc/s5p_mfc_dec.c:826:5: warning: no previous prototype for 'vidioc_decoder_cmd' [-Wmissing-prototypes]
 int vidioc_decoder_cmd(struct file *file, void *priv,
     ^
drivers/media/platform/s5p-mfc/s5p_mfc.c: In function 's5p_mfc_runtime_resume':
drivers/media/platform/s5p-mfc/s5p_mfc.c:1314:6: warning: variable 'pre_power' set but not used [-Wunused-but-set-variable]
  int pre_power;
      ^
drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v5.c:163:25: warning: no previous prototype for 's5p_mfc_init_hw_cmds_v5' [-Wmissing-prototypes]
 struct s5p_mfc_hw_cmds *s5p_mfc_init_hw_cmds_v5(void)
                         ^
drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v6.c:156:25: warning: no previous prototype for 's5p_mfc_init_hw_cmds_v6' [-Wmissing-prototypes]
 struct s5p_mfc_hw_cmds *s5p_mfc_init_hw_cmds_v6(void)
                         ^
drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c: In function 's5p_mfc_run_dec_frame':
drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c:1189:15: warning: variable 'index' set but not used [-Wunused-but-set-variable]
  unsigned int index;
               ^
drivers/media/platform/s5p-mfc/s5p_mfc_enc.c: In function 'cleanup_ref_queue':
drivers/media/platform/s5p-mfc/s5p_mfc_enc.c:742:27: warning: variable 'mb_c_addr' set but not used [-Wunused-but-set-variable]
  unsigned long mb_y_addr, mb_c_addr;
                           ^
drivers/media/platform/s5p-mfc/s5p_mfc_enc.c:742:16: warning: variable 'mb_y_addr' set but not used [-Wunused-but-set-variable]
  unsigned long mb_y_addr, mb_c_addr;
                ^
drivers/media/platform/s5p-mfc/s5p_mfc_enc.c: At top level:
drivers/media/platform/s5p-mfc/s5p_mfc_enc.c:1684:5: warning: no previous prototype for 'vidioc_encoder_cmd' [-Wmissing-prototypes]
 int vidioc_encoder_cmd(struct file *file, void *priv,
     ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

That gets rid of the following warnings:

drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c:119:5: warning: no previous prototype for 's5p_mfc_release_firmware' [-Wmissing-prototypes]
 int s5p_mfc_release_firmware(struct s5p_mfc_dev *dev)
     ^
drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c:132:5: warning: no previous prototype for 's5p_mfc_reset' [-Wmissing-prototypes]
 int s5p_mfc_reset(struct s5p_mfc_dev *dev)
     ^
drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c:214:5: warning: no previous prototype for 's5p_mfc_init_hw' [-Wmissing-prototypes]
 int s5p_mfc_init_hw(struct s5p_mfc_dev *dev)
     ^
drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c:291:6: warning: no previous prototype for 's5p_mfc_deinit_hw' [-Wmissing-prototypes]
 void s5p_mfc_deinit_hw(struct s5p_mfc_dev *dev)
      ^
drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c:301:5: warning: no previous prototype for 's5p_mfc_sleep' [-Wmissing-prototypes]
 int s5p_mfc_sleep(struct s5p_mfc_dev *dev)
     ^
drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c:330:5: warning: no previous prototype for 's5p_mfc_wakeup' [-Wmissing-prototypes]
 int s5p_mfc_wakeup(struct s5p_mfc_dev *dev)
     ^
drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c:378:5: warning: no previous prototype for 's5p_mfc_open_mfc_inst' [-Wmissing-prototypes]
 int s5p_mfc_open_mfc_inst(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx)
     ^
drivers/media/platform/s5p-mfc/s5p_mfc_ctrl.c:420:6: warning: no previous prototype for 's5p_mfc_close_mfc_inst' [-Wmissing-prototypes]
 void s5p_mfc_close_mfc_inst(struct s5p_mfc_dev *dev, struct s5p_mfc_ctx *ctx)
      ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

In file included from drivers/media/platform/exynos4-is/fimc-is-param.c:31:0:
drivers/media/platform/exynos4-is/fimc-is-errno.h:245:20: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]
 const char * const fimc_is_strerr(unsigned int error);
                    ^
drivers/media/platform/exynos4-is/fimc-is-errno.h:246:20: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]
 const char * const fimc_is_param_strerr(unsigned int error);
                    ^
drivers/media/platform/exynos4-is/fimc-is-param.c: In function 'fimc_is_set_initial_params':
drivers/media/platform/exynos4-is/fimc-is-param.c:670:23: warning: variable 'sensor' set but not used [-Wunused-but-set-variable]
  struct sensor_param *sensor;
                       ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/s5p-g2d/g2d.c: In function 'job_abort':
drivers/media/platform/s5p-g2d/g2d.c:493:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
  int ret;
      ^

The job_abort function returns void. No sense to get the
returned argument, if this won't be used.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Declare this as static:

drivers/media/platform/s5p-jpeg/jpeg-core.c:732:6: warning: no previous prototype for 'exynos4_jpeg_set_huff_tbl' [-Wmissing-prototypes]
 void exynos4_jpeg_set_huff_tbl(void __iomem *base)
      ^

And don't compile this dead code, while not needed:
drivers/media/platform/s5p-jpeg/jpeg-hw-exynos3250.c:236:14: warning: no previous prototype for 'exynos3250_jpeg_get_y' [-Wmissing-prototypes]
 unsigned int exynos3250_jpeg_get_y(void __iomem *regs)
              ^
drivers/media/platform/s5p-jpeg/jpeg-hw-exynos3250.c:241:14: warning: no previous prototype for 'exynos3250_jpeg_get_x' [-Wmissing-prototypes]
 unsigned int exynos3250_jpeg_get_x(void __iomem *regs)
              ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/omap/omap_vout.c: In function 'omapvid_setup_overlay':
drivers/media/platform/omap/omap_vout.c:372:29: warning: variable 'pixheight' set but not used [-Wunused-but-set-variable]
  int cropheight, cropwidth, pixheight, pixwidth;
                             ^
drivers/media/platform/omap/omap_vout.c: In function 'vidioc_s_ctrl':
drivers/media/platform/omap/omap_vout.c:1454:24: warning: variable 'ovl' set but not used [-Wunused-but-set-variable]
   struct omap_overlay *ovl;
                        ^
drivers/media/platform/omap/omap_vout.c: In function 'vidioc_reqbufs':
drivers/media/platform/omap/omap_vout.c:1492:55: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits]
  if ((req->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) || (req->count < 0))
                                                       ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

When CONFIG_VIDEO_OMAP2_VOUT_VRFB is disabled, the compilation
will fail, as the function stubs are wrong. Also, as they weren't
declared as static inline, lots of warnings will be generated.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/exynos-gsc/gsc-core.c:855:2: note: in expansion of macro 'pr_debug'
  pr_debug("ADDR: y= 0x%X  cb= 0x%X cr= 0x%X ret= %d",
  ^
include/linux/dynamic_debug.h:64:16: warning: format '%X' expects argument of type 'unsigned int', but argument 4 has type 'dma
_addr_t' [-Wformat=]
  static struct _ddebug  __aligned(8)   \
                ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

The needed bandwidth can be estimated using the symbol rate and
the rolloff factor. This could be useful for the frontend drivers,
as they don't need to calculate it themselves.
Reported-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

The fpc_table_addr is used as an unsigned integer that stores
an address. At the Kernel, the proper type for such integers
is unsigned long.

This generates lots of warnings when compiling on 64 bits.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Shut up several warnings about invalid casting when printing
the values of two pointers.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

The 'debug' name is known to cause conflicts with allyesconfig
on several archs. So, localize its name.

>> drivers/built-in.o:(.bss+0xc7ee2c): multiple definition of `debug'
   arch/x86/built-in.o:(.entry.text+0xf78): first defined here
   ld: Warning: size of symbol `debug' changed from 86 in arch/x86/built-in.o to 4 in drivers/built-in.o

While here, fix a wrong file name reference
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

   drivers/media/platform/soc_camera/atmel-isi.c: In function 'start_streaming':
   drivers/media/platform/soc_camera/atmel-isi.c:397:26: warning: large integer implicitly truncated to unsigned type [-Woverflow]
     isi_writel(isi, ISI_INTDIS, ~0UL);
                             ^
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Instead of using u32 for DMA address, use the proper
Kernel type for it.

   drivers/media/platform/soc_camera/atmel-isi.c: In function 'atmel_isi_probe':
>> drivers/media/platform/soc_camera/atmel-isi.c:981:26: warning: passing argument 3 of 'dma_alloc_attrs' from incompatible pointer type
     isi->p_fb_descriptors = dma_alloc_coherent(&pdev->dev,
                             ^
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

   drivers/media/platform/ti-vpe/vpdma.c: In function 'vpdma_alloc_desc_buf':
>> drivers/media/platform/ti-vpe/vpdma.c:332:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     WARN_ON((u32) buf->addr & VPDMA_DESC_ALIGN);
             ^
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

   drivers/media/platform/ti-vpe/vpdma.c: In function 'dump_dtd':
   include/linux/dynamic_debug.h:64:16: warning: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'dma_addr_t' [-Wformat=]
     static struct _ddebug  __aligned(8)   \
                   ^
   include/linux/dynamic_debug.h:76:2: note: in expansion of macro 'DEFINE_DYNAMIC_DEBUG_METADATA'
     DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);  \
     ^
   include/linux/printk.h:263:2: note: in expansion of macro 'dynamic_pr_debug'
     dynamic_pr_debug(fmt, ##__VA_ARGS__)
     ^
>> drivers/media/platform/ti-vpe/vpdma.c:587:2: note: in expansion of macro 'pr_debug'
     pr_debug("word2: start_addr = 0x%08x\n", dtd->start_addr);
     ^
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/exynos-gsc/gsc-m2m.c: In function 'gsc_m2m_reqbufs':
drivers/media/platform/exynos-gsc/gsc-m2m.c:365:20: warning: variable 'frame' s
et but not used [-Wunused-but-set-variable]
  struct gsc_frame *frame;
                    ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/exynos-gsc/gsc-core.c: In function 'gsc_probe':
drivers/media/platform/exynos-gsc/gsc-core.c:1089:2: warning: comparison is alw
ays false due to limited range of data type [-Wtype-limits]
  if (gsc->id < 0 || gsc->id >= drv_data->num_entities) {
  ^

gsc->id is declared as u16, so it should always be a positive
value.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/davinci/dm355_ccdc.c:463:5: warning: no previous prototy
pe for 'ccdc_write_dfc_entry' [-Wmissing-prototypes]
 int ccdc_write_dfc_entry(int index, struct ccdc_vertical_dft *dfc)
     ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/davinci/dm644x_ccdc.c:133:6: warning: no previous protot
ype for 'ccdc_setwin' [-Wmissing-prototypes]
 void ccdc_setwin(struct v4l2_rect *image_win,
      ^
drivers/media/platform/davinci/dm644x_ccdc.c:373:6: warning: no previous protot
ype for 'ccdc_config_ycbcr' [-Wmissing-prototypes]
 void ccdc_config_ycbcr(void)
      ^
drivers/media/platform/davinci/dm644x_ccdc.c:526:6: warning: no previous protot
ype for 'ccdc_config_raw' [-Wmissing-prototypes]
 void ccdc_config_raw(void)
      ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/davinci/vpif_capture.c: In function 'vpif_channel_isr':
drivers/media/platform/davinci/vpif_capture.c:376:18: warning: variable 'field'
 set but not used [-Wunused-but-set-variable]
  enum v4l2_field field;
                  ^
drivers/media/platform/davinci/vpif_capture.c: In function 'vpif_calculate_offs
ets':
drivers/media/platform/davinci/vpif_capture.c:536:23: warning: variable 'vpitch
' set but not used [-Wunused-but-set-variable]
  unsigned int hpitch, vpitch, sizeimage;
                       ^
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>