The initialization is already too complex. Use devm_ functions
to make the code simpler and easier to modify.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

On some newer boards, like HVR-930C HD, the information at
the PCB tables are sometimes higher than the ones actually
available on the device. That causes the probing code to
go past the interfaces array.

Add checks to the interface number before going past the
array.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

The max number of interfaces was read from the wrong descriptor.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

This protocol is found on Dreambox remotes

[m.chehab@samsung.com: CodingStyle fixes and conflict fix]
Signed-off-by: Marcel Mol <marcel@mesa.nl>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Multiple pinctrl states are defined for 8, 16 and 24 data pin groups in PPI peripheral.
The driver should select correct group before set up further PPI parameters.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

On NOMMU architecture page fault is not triggered if a deleted list entry is
accessed without reinit.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

if the pinctrl driver is enabled.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Fixes an old copy+paste bug that has survived all recent code
changes in this code area.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Instead of counting the number of opened file handles, use function
v4l2_fh_is_singular_file() in em28xx_v4l2_open() and em28xx_v4l2_close() to
determine if the file handle is the first/last opened one.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Instead of calling

...
struct v4l2_fh *fh = kzalloc(sizeof(*fh), GFP_KERNEL);
filp->private_data = fh;
v4l2_fh_init(fh, vdev);
v4l2_fh_add(fh);
...

simply use function v4l2_fh_open() which does all of these calls for us.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

struct em28xx_fh isn't needed anymore because the only used field which is left is struct v4l2_fh fh.
Use struct v4l2_fh directly and remvove struct em28xx_fh.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Pointer v4l2" can be used instead of "dev->v4l2, which saves some characters.
Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

This patch fix checkpatch:
WARNING: else is not generally useful after a break or return
WARNING: line over 80 characters

[m.chehab@samsung.com: Fix conflicts and use a better coding style for
 passing the parameters to parport_register_device()]
Signed-off-by: Zheng Di <zhengdi05@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Expression ((7bit i2c_addr << 1) & 0x01) can not be right
because it is always 0
Signed-off-by: Raimonds Cicans <ray@apollo.lv>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

The crashed member of struct iss_device is documented to be a bitmask,
but a bool doesn't hold that many (usable) bits. Lines 589 and 659 of
iss.c strongly suggest that "unsigned int" was meant (the same type as
struct iss_pipeline::entities). Currently, any crashed entity will be
blamed on index 0, which is unlikely to be what was intended.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

This patch introduces the use of managed interfaces like
devm_request_mem_region and devm_request_irq and does away with the
calls to free the allocated memory in the probe and remove functions.
The remove function is no longer required and is removed completely.
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

This patch fix checkpath "WARNING: void function return statements are not generally useful".
The removed return were useless in that case.
Signed-off-by: Raphaël Poggi <poggi.raph@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

This patch fix checkpath "WARNING: Missing a blank line after declarations"
Signed-off-by: Raphaël Poggi <poggi.raph@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

This patch adds the necessary IDs for the following dvb cards:

Digital Devices Octopus Mini
Digital Devices Cine S2 V6.5
Digital Devices DVBCT V6.1
Digital Devices Octopus V3
Mystique SaTiX-S2 V3

All these changes are taken from the official driver package by Digital
Devices.
http://download.digital-devices.de/download/linux/

[m.chehab@samsung.com: Fixed whitespace mangling]
Signed-off-by: Christopher Reimer <mail@creimer.net>
Tested-by: "D. Herrendoerfer" <d.herrendoerfer@herrendoerfer.name>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

[media] drivers/media/usb/ttusb-budget/dvb-ttusb-budget.c: remove unnecessary null test before usb_free_urb

Fix checkpatch warning:
WARNING: usb_free_urb(NULL) is safe this check is probably not required
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Variable b is not initialized.
Only with a small chance it has random value 0xFF.
Remove if statement based on this value.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Variable reg is not initialized.
Random values are written to OMAP4 ISS registers if !ctx->eof_enabled.

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Tuner ID set into EEPROM is wrong, which causes driver to select
wrong tuner profile. That leads device non-working. Fix issue by
overriding known bad tuner IDs with suitable default value.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

changeset b601fe56 did some cleanup, but didn't remove some
now unused vars:
	drivers/media/dvb-frontends/drx39xyj/drxj.c: In function 'drx39xxj_set_frontend':
	drivers/media/dvb-frontends/drx39xyj/drxj.c:12072:21: warning: unused variable 'uio_data' [-Wunused-variable]
	drivers/media/dvb-frontends/drx39xyj/drxj.c: In function 'drx39xxj_set_lna':
	drivers/media/dvb-frontends/drx39xyj/drxj.c:12230:21: warning: unused variable 'uio_data' [-Wunused-variable]
	drivers/media/dvb-frontends/drx39xyj/drxj.c:12229:20: warning: unused variable 'uio_cfg' [-Wunused-variable]
	drivers/media/dvb-frontends/drx39xyj/drxj.c:12224:6: warning: unused variable 'result' [-Wunused-variable]
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/pci/cx23885/cx23885-dvb.c:768:2: warning: initialized field overwritten [-Woverride-init]
  .freq_offset_khz_vhf = 550,
  ^
drivers/media/pci/cx23885/cx23885-dvb.c:768:2: warning: (near initialization for 'dib7070p_dib0070_config.freq_offset_khz_vhf') [-Woverride-init]

Cc: James Harper <james.harper@ejbdigital.com.au>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

A few new devices were added. Update the lists accordingly.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Due to DViCO FusionHDTV DVB-T Dual Express2, we also need to
autoselect this tuner.
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

DViCO FusionHDTV DVB-T Dual Express2 is cx23885 + dib7070

[m.chehab@samsung.com: fix conflicts and make checkpatch happy]
Signed-off-by: James Harper <james.harper@ejbdigital.com.au>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Patch originally written by Konrad. Rebased on current linux media tree.

Under Xen, vmalloc_32() isn't guaranteed to return pages which are really
under 4G in machine physical addresses (only in virtual pseudo-physical
addresses).  To work around this, implement a vmalloc variant which
allocates each page with dma_alloc_coherent() to guarantee that each
page is suitable for the device in question.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: James Harper <james.harper@ejbdigital.com.au>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drx39xxj_set_lna() and drx39xxj_set_frontend() set LNA. Instead of
duplicating LNA configure code, change to use drxj_set_lna_state()
which sets LNA to the caller requested state (on or off).
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Several functions ignore the return values in error legs and always
return -EIO. This makes it hard to debug and take proper action in
calling routines.
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drx39xyj driver lacks resume support. Add support by changing
its fe ops init interface to detect the resume status by checking
fe exit flag and do the necessary initialization. With this change,
driver resume correctly in both dvb adapter is not in use and in use
by an application cases.
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Some fe drivers will have to do additional initialization
in their fe ops.init interfaces when called during resume.
Without the additional initialization, fe and tuner driver
resume fails. A new fe exit flag value DVB_FE_DEVICE_RESUME
is necessary to detect resume case. This patch adds a new
define and changes dvb_frontend_resume() to set it prior to
calling fe init and tuner init calls and resets it back to
DVB_FE_NO_EXIT once fe and tuner init is done.
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Change drx39xyj_release() to check fe exit flag to detect the
device disconnect state and avoid accessing the device after
it has been removed.
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Change em28xx_dvb_fini() to set fe exit flag to DVB_FE_DEVICE_REMOVED
when device is disconnected. em28xx maintains device disconnect status
in em28xx device. fe drivers will be able to now check the fe exit
status to avoid accessing the device, from their release interfaces
when called from disconnect path. This change depends on dvb-core
change that exports fe exit flag by moving it from fepriv to fe.
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Some fe drivers attempt to access the device for power control from
their release routines. When release routines are called after device
is disconnected, the attempts fail. fe drivers should avoid accessing
the device, from their release interfaces when called from disconnect
path. dvb-frontend maintains exit flag to keep track when fe device is
disconnected in its private data structures. Export the flag in fe to
enable drivers to check the device status from their release interfaces.
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

In em28xx usb disconnect code path, some dvb fe and tuner drivers
attempt i2c transfers from their release interfaces. When device
is removed, return -ENODEV instead of attempting to transfer data
over i2c.
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

em28xx uses resume interface as its reset_resume interface.
If usb device is reset during suspend, reset_resume doesn't
do the necessary initialization which leads to resume failure.
Many systems don't maintain do not maintain suspend current to
the USB host controllers during hibernation. Remove reset_resume
to allow disconnect to be called followed by device restore
sequence.
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

Add error hanlding when EM2870_BOARD_KWORLD_A340 dvb_attach()
for fe and tuner fail in em28xx_dvb_init().
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

em28xx_dvb_resume() unregisters i2c tuner, i2c demod, and dvb.
This erroneous cleanup results in i2c tuner, i2c demod, and dvb
devices unregistered and removed during resume. This error is a
result of merge conflict between two patches that went into 3.15.
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>