staging:iio: Differential channel handling - use explicit flag rather than types.
Straight forward change in the core, but required some drivers to not use
the IIO_CHAN macro as that doesn't allow setting this bit (and is
going away anyway). Hence the churn.
Tested on max1363 with a couple of supported parts.
V2: differential bit in code got 7 bits and direction 1. Reversed that.
Issue spotted by Michael - thanks!
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Michael Hennerich <Michael.Hennerich@analog.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Should always have been IIO_EV_DIR_MAX as that's what it actually controls.
Also reduced the number to 4 as not yet seen a case needing more and this
is not userspace visible anyway.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
staging:iio: Switch the channel masks to bitmaps so as to allow for more channels.
This is as light as possible on changes to current drivers.
Some drivers make assumptions that their masks fit in a single
long. Given they were previously working this is clearly valid if
not tidy.
The max1363 is an example where there should be no such assumptions.
V2: Add the new ad5933
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Michael Hennerich <Michael.Hennerich@analog.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
staging:iio:various move default scan mask setting after ring register or remove
The scan mask will be dynamically assigned in register, so don't
use it before that.
In adis16260 I've moved it as I know this driver has userspace code.
Same for sca3000 where it is cost free due to hardware buffer.
Can do that for the others, but in theory userspace code should always
have been checking these and setting them appropriately anyway!
V2: Clear default mask out of adis16400 as reported by Michael
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Reported-by: Michael Hennerich <michael.hennerich@analog.com> Acked-by: Michael Hennerich <Michael.Hennerich@analog.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Jonathan Cameron [Tue, 30 Aug 2011 11:32:45 +0000 (12:32 +0100)]
staging: iio: remove specific chrdev for event reading. Get fd from ioctl on buffer.
Change suggested by Arnd Bergmann.
No real reason to have two chrdevs per device. This step merges them into one.
Currently this means that events will only work on devices with buffers. THat will
be remedied shortly.
V2: set name for event attribute groups. Otherwise they all sorts of fun occurs on
dynamic channel event attribute creation.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
staging: hv: fix the page buffer when rndis data go across page boundary
In rndis_filter_receive_data(), we need to drop the 0th page and move the
rest of pages forward if the rndis data go across page boundary, otherwise
the page offset will overflow.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
staging: hv: fix counting of available buffer slots when send fails
Because the number of available buffer slots doesn't decrease for failed
sends, we should not call netvsc_xmit_completion(), which increase the
count of available slots. In this failed case, just free the memory is
enough.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
staging: hv: fix a kernel warning in netvsc_linkstatus_callback()
netif_notify_peers() caused a kernel warning in netvsc_linkstatus_callback(),
because netvsc_linkstatus_callback() is within IRQ context. So we move
the first call to netif_notify_peers() into queued work as well, but with
zero delay.
In addition to "staging-next", this should also be back-ported to stable
kernels 2.6.32 and later.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
K. Y. Srinivasan [Wed, 31 Aug 2011 21:35:57 +0000 (14:35 -0700)]
Staging: hv: vmbus: Cleanup the code in process_chn_event()
A channel in Hyper-V is equivalent to a device. Thus, a channel is
persistent once it is presented to the guest, even if the driver
managing this device is unloaded. By checking and invoking the driver
specific callback function under the protection of the channel
inbound_lock, we can properly deal with racing driver unloads since an
unloading driver sets the callback to NULL under the protection of this
inbound_lock.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
K. Y. Srinivasan [Wed, 31 Aug 2011 21:35:56 +0000 (14:35 -0700)]
Staging: hv: vmbus: Check for events before messages
The Windows team has informed us that on Windows guests on Hyper-V,
they check for events before messages. They also recommended that we do
the same. This patch addresses this.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
staging: lirc_sasem: fix NULL pointer dereference in sasem_probe
If any memory allocation failed, goto alloc_status_switch
leads to mutex_unlock(&context->ctx_lock) while context is NULL.
The patch moves alloc_status_switch to handle error conditions
in correct way.
Found by Linux Driver Verification project (linuxtesting.org).
staging: lirc: fix mismatch in mutex lock-unlock in imon_probe
If kzalloc failed for allocation of context, goto alloc_status_switch
leads to unlock of unacquired driver_lock. The patch moves
mutex_lock(&driver_lock) before allocation of context.
Found by Linux Driver Verification project (linuxtesting.org).
Randy Dunlap [Mon, 29 Aug 2011 20:54:59 +0000 (13:54 -0700)]
staging: fix rtl8192e build errors
drivers/staging/rtl8192e/rtllib.h:2329: error: field 'wx_sem' has incomplete type
drivers/staging/rtl8192e/rtllib.h:2330: error: field 'scan_sem' has incomplete type
drivers/staging/rtl8192e/rtllib.h:2331: error: field 'ips_sem' has incomplete type
drivers/staging/rtl8192e/rtllib_wx.c:267: error: implicit declaration of function 'down'
drivers/staging/rtl8192e/rtllib_wx.c:290: error: implicit declaration of function 'up' Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Aaro Koskinen [Mon, 29 Aug 2011 20:14:31 +0000 (23:14 +0300)]
staging: xgifb: correct the default mode comment
According to the comment, the default mode should be 800x600x8 while
the index points actually to 800x600x16. Change the comment and move
the definition instead of changing the current behaviour.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Aaro Koskinen [Mon, 29 Aug 2011 20:14:27 +0000 (23:14 +0300)]
staging: xgifb: assume the default video mode also when module
The same default video mode should be assumed regardless if the driver
is a module or not. This won't change the current behaviour, but it will
simplify further changes.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Aaro Koskinen [Mon, 29 Aug 2011 20:14:24 +0000 (23:14 +0300)]
staging: xgifb: fix LVDS LCD resolution data setup
If the driver fails to get LVDS LCD data from the firmware, it falls
back to using driver's hardcoded values. However, this is done too
early in the probe. The selected video mode index is not yet known,
and also in some cases it could be defaulting to -1 resulting in a read
outside the array. Fix this by moving the array lookup after the video
mode validation.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Aaro Koskinen [Mon, 29 Aug 2011 20:14:20 +0000 (23:14 +0300)]
staging: xgifb: delete "off" option handling
It's possible to disable the built-in xgifb driver with the kernel
command line option:
video=xgifb:off
This is already handled by the generic framebuffer layer (fb_get_options()
will return TRUE resulting in init failure), so no need to process the
option in the driver.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Bill Pemberton [Mon, 29 Aug 2011 17:48:54 +0000 (13:48 -0400)]
staging: serqt_usb2: remove ssu100 from supported devices
The serqt_usb2 driver will not work properly with the ssu100 device
even though it claims to support it. The ssu100 is supported by the
ssu100 driver in mainline so there is no need to have it claimed by
serqt_usb2.
staging/easycap: fix mismatch in easycap_poll() mutex lock-unlock
In case if condition (kd != isdongle(peasycap)) becomes true,
easycap_poll() returns without releasing easycapdc60_dongle[kd].mutex_video.
The patch adds mutex_unlock() before that return.
Found by Linux Driver Verification project (linuxtesting.org).
Mark Einon [Mon, 29 Aug 2011 17:42:37 +0000 (18:42 +0100)]
MAINAINERS: Add details for drivers/staging/et131x
Adding myself as a maintainer for this driver, as I appear to have been the only interested party for some time.
Not sure if Olaf Hartman is still interested? So will leave it up to him to add his name to the list.
Signed-off-by: Mark Einon <mark.einon@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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