As is custom with all modern sensors, add a clever burst mode
that will just stream out values from the sensor and provide it
to userspace to do the proper offsetting and scaling.

This is the result when tested with an HRTimer trigger:

$ generic_buffer -a -c 10 -n kxsd9 -t foo
/sys/bus/iio/devices/iio:device1 foo
0.371318 0.718680 9.869872 1795.000000 97545896129
-0.586922 0.179670 9.378775 2398.000000 97555864721
-0.299450 0.179670 10.348992 2672.000000 97565874055
0.371318 0.335384 11.103606 2816.000000 97575883240
0.179670 0.574944 10.540640 2847.000000 97585862351
0.335384 0.754614 9.953718 2840.000000 97595872425
0.179670 0.754614 10.732288 2879.000000 97605882351
0.000000 0.754614 10.348992 2872.000000 97615891832
-0.730658 0.574944 9.570422 2831.000000 97625871536
0.000000 1.137910 10.732288 2872.000000 97635881610

Columns shown are x, y, z acceleration, so a positive acceleration
of ~9.81 (shaky due to bad calibration) along the z axis. The
fourth column is the AUX IN which is floating on this system,
it seems to float up to the 2.85V VDD voltage.

To be able to cleanup the triggered buffer, we need to add .remove()
callbacks to the I2C and SPI subdrivers and call back into an
exported .remove() callback in the core.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Tested-by: NJonathan Cameron <jic23@kernel.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This fixes several errors in the offset and scaling of the raw
values from the KXSD9 sensor:

- The code did not convert the big endian value from the sensor
  into the endianness of the host CPU. Fix this with
  be16_to_cpu() on the raw obtained value.

- The code did not regard the fact that only the upper 12 bits of
  the accelerometer values are valid. Shift these
  down four bits to yield the real raw value.

- Further the sensor provides 2048 at zero g. This means that an
  offset of 2048 must be subtracted from the raw value before
  scaling. This was not taken into account by the driver,
  yielding a weird value. Fix this by providing this offset in
  sysfs.

To house the scaling code better, the value reading code was
factored into the raw reading function.

This proper scaling and offseting is necessary to get proper
values out of triggered buffer by offsetting, shifting and scaling
them.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Tested-by: NJonathan Cameron <jic23@kernel.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

The RX/TX buffers are gone so drop the lock (it should have been
in the transport struct anyway).
Tested-by: NJonathan Cameron <jic23@kernel.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This adds I2C regmap transport for the KXSD9 driver.
Tested on the KXSD9 sensor on the APQ8060 Dragonboard.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This converts the KXSD9 driver to drop the custom transport
mechanism and just use regmap like everything else.
Tested-by: NJonathan Cameron <jic23@kernel.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This is just a masquerading register write function, so use the
register write function instead.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Tested-by: NJonathan Cameron <jic23@kernel.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This moves the KXSD9 SPI transport out to its own file and Kconfig
entry, so that we will be able to add another transport method.
We export the common probe and add a local header file for the
functionality shared between the main driver and the transport
driver.

We make the SPI transport the default for the driver if SPI is
available and the KXSD9 driver was selected, so the oldconfig
upgrade path will be clear.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Tested-by: NJonathan Cameron <jic23@kernel.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

This makes it possible to later split the transport mechanism
using a generic probe() and a generic remove().

Use dev_set_drvdata() and dev_get_drvdata() as a paired
accessor to operate on the abstract struct device * regardless
of the transport mechanism in use.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Tested-by: NJonathan Cameron <jic23@kernel.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Split off a transport mechanism struct that will deal with the SPI
traffic in preparation for adding I2C support.
Tested-by: NJonathan Cameron <jic23@kernel.org>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

Fixed a coding style issue.
Signed-off-by: NCathal Mullaney <chuckleberryfinn@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Correct the word 'success' being misspelt in the macro:
- LED_BLINK_WPS_SUCESS_INTERVAL_ALPHA => LED_BLINK_WPS_SUCCESS_INTERVAL_ALPHA
Signed-off-by: NNamrata A Shettar <namrataashettar@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

staging: rtl8188eu: core: Replace memcpy() with ether_addr_copy() if ethernet addresses are __aligned(2)

This patch fixes the checkpatch warning:
Prefer ether_addr_copy() over memcpy() if the Ethernet addresses are
__aligned(2)
Done using coccinelle:

@@
expression exp1, exp2;
@@
- memcpy(exp1, exp2, ETH_ALEN);
+ ether_addr_copy(exp1, exp2);

The output of pahole shows that the addresses are aligned:

struct ieee80211_hdr {
        __le16                     frame_control;        /*     0     2 */
        __le16                     duration_id;          /*     2     2 */
        u8                         addr1[6];             /*     4     6 */
        u8                         addr2[6];             /*    10     6 */
        u8                         addr3[6];             /*    16     6 */
        __le16                     seq_ctrl;             /*    22     2 */
        u8                         addr4[6];             /*    24     6 */

        /* size: 30, cachelines: 1, members: 7 */
        /* last cacheline: 30 bytes */
};

struct wlan_bssid_ex {
        u32                        Length;               /*     0     4 */
        unsigned char              MacAddress[6];        /*     4     6 */
        u8                         Reserved[2];          /*    10     2 */
        struct ndis_802_11_ssid    Ssid;                 /*    12    36 */
        u32                        Privacy;              /*    48     4 */
        long int                   Rssi;                 /*    52     8 */
        enum NDIS_802_11_NETWORK_TYPE NetworkTypeInUse;  /*    60     4 */
        /* --- cacheline 1 boundary (64 bytes) --- */
        struct ndis_802_11_config  Configuration;        /*    64    32 */
        enum ndis_802_11_network_infra InfrastructureMode; /*    96     4 */
        unsigned char              SupportedRates[16];   /*   100    16 */
        struct wlan_phy_info       PhyInfo;              /*   116     4 */
        u32                        IELength;             /*   120     4 */
        u8                         IEs[768];             /*   124   768 */
        /* --- cacheline 13 boundary (832 bytes) was 60 bytes ago --- */

        /* size: 892, cachelines: 14, members: 13 */
        /* last cacheline: 60 bytes */
};

struct stadel_event {
        unsigned char              macaddr[6];           /*     0     6 */
        unsigned char              rsvd[2];              /*     6     2 */
        int                        mac_id;               /*     8     4 */

        /* size: 12, cachelines: 1, members: 3 */
        /* last cacheline: 12 bytes */
};
Signed-off-by: Nsayli karnik <karniksayli1995@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Ran checkpatch.pl -f vme_pio2_core.c
Fixed: WARNING: Symbolic permissions are not preferred. Consider using
octal permissions (0444)
Signed-off-by: NAndrew Kanner <andrew.kanner@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch replaces type u_int8_t with u8 as suggested by checkpatch.pl.
Signed-off-by: Nsayli karnik <karniksayli1995@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch replaces the explicit NULL comparisons with ! operator.
It was found using Coccinelle:

@disable is_null@
expression e;
@@
- e == NULL
+ !e
Signed-off-by: Nsayli karnik <karniksayli1995@gmail.com>
Acked-by: NJulia Lawall <julia.lawall@lip6.fr>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch replaces left shifts on 1 with the BIT(x) macro, as suggested
by checkpatch.pl.
This was done using coccinelle script:
@@
constant c;
@@
- (1 << c)
+ BIT(c)
Signed-off-by: Nsayli karnik <karniksayli1995@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Remove extern specifier from function declaration as they have
it by default. Also move extern declaration from .c files to
their respective header file 'ks_hostif.h'. Coccinelle was used
to remove extern and other changes were done by hand.
Script:
@@
identifier func;
type T;
@@
- extern
T func(...);
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Add space around binary operators to resolve checkpatch issue.
Signed-off-by: NNamrata A Shettar <namrataashettar@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

We get a few warnings when building kernel with W=1:
drivers/staging/lustre/lustre/lmv/lmv_obd.c:1640:1: warning: no previous prototype for 'lmv_locate_target_for_name' [-Wmissing-prototypes]
drivers/staging/lustre/lustre/lmv/lmv_obd.c:2421:5: warning: no previous prototype for 'lmv_read_page' [-Wmissing-prototypes]
....

In fact, these functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
so this patch marks these functions with 'static'.
Signed-off-by: NBaoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

We get 1 warning when building kernel with W=1:
drivers/staging/lustre/lustre/obdclass/cl_page.c:488:6: warning: no previous prototype for 'cl_page_disown0' [-Wmissing-prototypes]

In fact, this function is declared in
drivers/staging/lustre/lustre/obdclass/cl_io.c, but should be
removed in a header file. thus can be recognized in other file.

So this patch moves the declaration into
drivers/staging/lustre/lustre/include/cl_object.h.
Signed-off-by: NBaoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

We get 3 warnings when building kernel with W=1:

drivers/staging/lustre/lustre/obdclass/obd_mount.c:705:5: warning: no previous prototype for 'lustre_check_exclusion' [-Wmissing-prototypes]
drivers/staging/lustre/lustre/obdclass/obd_mount.c:1226:5: warning: no previous prototype for 'lustre_register_fs' [-Wmissing-prototypes]
drivers/staging/lustre/lustre/obdclass/obd_mount.c:1231:5: warning: no previous prototype for 'lustre_unregister_fs' [-Wmissing-prototypes]

In fact, the first function is declared in
drivers/staging/lustre/lustre/obdclass/obd_config.c,
and the other two functions are declared in
drivers/staging/lustre/lustre/obdclass/class_obd.c,
but all of these functions should be declared in
a header file, thus can be recognized in other file.

So this patch moves the declarations into
drivers/staging/lustre/lustre/include/obd_class.h.
Signed-off-by: NBaoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

We get 1 warning when building kernel with W=1:
drivers/staging/lustre/lustre/obdclass/obd_config.c:719:6: warning: no previous prototype for 'lustre_register_client_process_config' [-Wmissing-prototypes]

In fact, this function is declared in
drivers/staging/lustre/lustre/llite/super25.c, but should be
moved into a header file, thus can be recognized in other file.

So this patch moves the declaration into
drivers/staging/lustre/lustre/include/lprocfs_status.h.
Signed-off-by: NBaoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

We get 1 warning when building kernel with W=1:
drivers/staging/lustre/lnet/selftest/conctl.c:804:1: warning: no previous prototype for 'lstcon_ioctl_entry' [-Wmissing-prototypes]

In fact, this function is declared in
drivers/staging/lustre/lustre/llite/super25.c, but should be
moved into a header file, thus can be recognized in other file.

So this patch moves the declaration into
drivers/staging/lustre/lnet/selftest/console.h
Signed-off-by: NBaoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Minor warnings spotted by checkpatch.pl in lustre
Remove unnecessary space before function pointer arguments.
Signed-off-by: NRichard Groux <rgroux@sauron-mordor.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Use eth_zero_addr to assign zero address to the given address array
instead of memset when the second argument in memset is address
of zero. Coccinelle was used to do the replacement and add the
header file linux/etherdevice.h if not already present.
Script:
@header@
@@
#include <linux/etherdevice.h>

@r1@
expression e;
@@

-memset(e,0,ETH_ALEN);
+eth_zero_addr(e);

@includeheader depends on r1 && !header@
@@
+ #include <linux/etherdevice.h>
#include <...>
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Acked-by: NJulia Lawall <julia.lawall@lip6.fr>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

The patch uses the size of the dereference to a variable instead of it's type,
to make the code more resistant to type changes in the future. The type of the
pointer variable here is the same as the type in the argument that is being
replaced in sizeof().
Signed-off-by: Nsayli karnik <karniksayli1995@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This function used once, and does not improve code readability.
Signed-off-by: NIvan Safonov <insafonov@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This function used once, and does not improve code readability.
Signed-off-by: NIvan Safonov <insafonov@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This function does not improve code readability.
Signed-off-by: NIvan Safonov <insafonov@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

add spaces around << to fix the checkpatch issue, spaces preferred
around that '<<'.
Signed-off-by: NGargi Sharma <gs051095@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

add spaces around | to fix the checkpatch issue, spaces preferred around
that '|'.
Signed-off-by: NGargi Sharma <gs051095@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

add spaces around >> to fix the checkpatch issue, spaces preferred
around that '>>'.
Signed-off-by: NGargi Sharma <gs051095@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

add space around & to fix the checkpatch issue spaces preferred around
that '&'.
Signed-off-by: NGargi Sharma <gs051095@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

add spaces around + to fix the checkpatch issue,
spaces preferred around that '&'.
Signed-off-by: NGargi Sharma <gs051095@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

add spaces around << to fix the checkpatch issue, spaces preferred
around that '<<'.
Signed-off-by: NGargi Sharma <gs051095@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Move && up to the previous line, to fix the checkpatch issue Logical
continuations should be on the previous line.
Signed-off-by: NGargi Sharma <gs051095@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

change ressources to resources to fix the checkpatch issue
'ressources' may be misspelled.
Signed-off-by: NGargi Sharma <gs051095@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

This patch replaces left shifts on 1 with the BIT(x) macro, as suggested
by checkpatch.pl.
Signed-off-by: Nsayli karnik <karniksayli1995@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Reduce indentation of multi-line if-test arguments for better readability.
Signed-off-by: NGargi Sharma <gs051095@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

delete blank line before '}' to fix the checkpatch issue Blank lines
aren't necessary before a closing brace '}'.
Signed-off-by: NGargi Sharma <gs051095@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>