mfd: pm8xxx-misc: Add API to read PMIC registers

This API reads the PMIC registers at runtime and can be called
from process/interrupt context. It is currently enabled for PM8921.

Change-Id: I63a80293e37725569d075de814f27f67382976ca
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>
mac80211: VHT (11ac) association

Insert VHT IEs into association frames to allow
mac80211 to connect as a VHT client.

Change-Id: Ifc54bdbe49be3d8b499a764107b30cf3136adf9f
CRs-fixed: 452921

Signed-off-by: Mahesh Palivela <maheshp@posedge.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
ieee80211: Rename VHT cap struct

Rename struct ieee80211_vht_capabilities to ieee80211_vht_cap
and renamed its member vht_capabilities_info to vht_cap_info.

Change-Id: I2cfee9b9fa558a9c742d6f8a3827c21d443e9156
CRs-fixed: 452921

Signed-off-by: Mahesh Palivela <maheshp@posedge.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
{nl,cfg}80211: Peer STA VHT caps

To save STAs VHT caps in AP mode

Change-Id: I1930ec05a3e079733c00837c93bda615289fceda
CRs-fixed: 452921

Signed-off-by: Mahesh Palivela <maheshp@posedge.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
cfg80211: Pass station (extended) capability info to kernel

The information of the peer's capabilities and extended capabilities are
required for the driver to perform TDLS Peer UAPSD operations and off
channel operations. This information of the peer is passed from user space
using NL80211_CMD_SET_STATION command. This commit enhances
the function nl80211_set_station to pass the capability information of
the peer to the driver.

Similarly, there may be need for capability information for other modes,
so allow this to be provided with both add_station and change_station.

Change-Id: I1e626512a0f849ae05bbbd24c4e262d303b8f8ea
CRs-fixed: 452921

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
cfg80211: Pass TDLS peer's QoS/HT/VHT information during set_station

The information of the peer's capabilities is required for the driver
to perform TDLS Peer UAPSD operations. This information of the peer is
passed by the supplicant using NL80211_CMD_SET_STATION command. This
commit enhances the function nl80211_set_station to pass this
information of the peer to the driver in case this command is used
with the TDLS peer STA.

In addition, make the HT/VHT capability configuration handled more
consistently for other STA cases (reject both instead of just HT).

Change-Id: I08635df14f49711b04dfdad0daf8f874a340b5b7
CRs-fixed: 452921

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
cfg80211: fix station change if TDLS isn't supported

Larry noticed (and bisected) that commit df881293c6ba9a12868491a717b25
"cfg80211: Pass TDLS peer's QoS/HT/VHT information during set_station"
broke secure connections. This is is the case only for drivers that
don't support TDLS, where any kind of change, even just the change of
authorized flag that is required for normal operation, was rejected
now. To fix this, remove the checks. I have some patches that will add
proper verification for all the different cases later.

Change-Id: Ieaf0f8a8ab922d42bccdb4957c55b8c3d9463a3f
CRs-fixed: 452921

Cc: Jouni Malinen <j@w1.fi>
Bisected-by: Larry Finger <Larry.Finger@lwfinger.net>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Fix not able to disconnect from the Host after SMP requests

The following fixes were added:
1. While using whitelist API for connection, if SMP requests are received
before the L2CAP channel is correctly setup, queue the SMP requets
and execute them once the channel state is bounded and connected and
therefore maintaining the correct connection reference count.
2. If the status LE start encryption command is not successful,
then call hci_conn put which would decrement the HCI connection
reference count.

CRs-fixed: 447092
Change-Id: Ibb11ecf94f28e0b0aff5eacc86d1660e7ec2e25d
Signed-off-by: Archana Ramachandran <archanar@codeaurora.org>
qup_i2c: Avoid potential panic issue

I2c register access is happening in isr before check
PM runtime status. This can lead to potential hang because of
unwanted interrupts and i2c clocks are off.

Update the i2c driver code to have register access
after PM runtime status check.

CRs-Fixed: 454710
Change-Id: I11a3d8df24c514205203f24be8e08d7c1ea1a7b8
Signed-off-by: Alok Chauhan <alokc@codeaurora.org>
msm:kgsl: Remove NORETRY flag in memory allocations

With NORETRY flag kernel will not try to reclaim memory
incase of memory allocation failures.With NORETRY flag
being removed, kernel makes mutliple attempts in order to make memory
allocation sucessfull, before returning failure.

Change-Id: I7d71954eba723ce6a8a79b63f54bea1e5b6618f1
Signed-off-by: Rajeev Kulkarni <krajeev@codeaurora.org>
mmc: msm_sdcc: optimize sampling clock tuning procedure

SDCC-Card tuning sequence comprises of 16 phases. When the
card is detected for the first time the entire tuning
sequence should be implemented to determine the optimum phase
and lock the DLL. However, if the card is transitioning out
of low power mode or when the clock frequency is changed
dynamically, there is no need to carry out tuning sequence
for all 16 phases. It is sufficient to try with the last
successful tuning phase first. This reduces the overhead
involved in executing the entire tuning operation.

In case if the last successful tuning phase has failed,
tuning for all phases needs to be carried out to figure
out optimum phase.

CRs-Fixed: 433495
Change-Id: I78ea074a9bdeb5686c96debfcde3490d50beaf09
Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
msm_fb: display: Do clock control within mdp4_hw_init

Since mdp4_hw_init() access mdp registers, mdp clock control
within mdp4_hw_init() is necessary.

CRs-fixed: 455506
Change-Id: I768f468314fc920029b4c88e49ef6a74f6b74f58
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
msm_serial_hs: Wait for discard flush completion for UART Rx channel

Completion of requested flush command with ADM driver is having more
latency then previously. Hence now it is required to wait for discard
flush complete if there is more events expected with UART driver which
would go out of sync without it. Below are 2 instances where it is must
to wait for discard flush completion requested on UART Rx channel.

1. Changing Baud Rate of UART
UART application can send baud rate change request based on its requirement
of communication with connected device on remote uart. Serial core also
does set by default baud rate when application is opening the uart port. As
Rx command is queued always with ADM driver from UART driver, for above
events it is required to flush the same after setting the baud rate. Not
waiting for completion of Rx flush would allow application to send command
on Tx or any other ioctl which would reach to connected device but response
may not be received as Rx flush completion is not received to queue next Rx
command to ADM. Hence with this there are chances that received data with
UART wil be lost when Rx flush completion is not received in-time. Hence
wait for Rx flush completion from set_termios() with timeout as 300 jiffie.
Rx flush completion time is non-deterministic as it depends on number of
commands queued to ADM driver from ADM client drivers.

2. While going for UART clock off
UART clock off has multiple state machines and before going into last
state it makes sure that there are no pending data in UART Tx and Rx FIFO.
Although there would be one Rx command queued which is flushed before
moving to last state and going ahead with UART clock off. If UART clock is
turned off before Rx flush request is being executed and ADM tried to flush
Rx command, ADM encounters data bus error on UART Rx Channel. Hence with
waiting for Rx flush completion, and then doing UART clock off on receving
the same would resolve ADM data bus error issue on UART Rx channel.

CRs-Fixed: 457769
Change-Id: I9344277224a2dc3f28140a1f42aa3feed5411b97
Signed-off-by: Mayank Rana <mrana@codeaurora.org>
Bluetooth: GAP: Disconnect ACL immediately after Auth failure.

The patch fixes issue of ACL lingering for 2 seconds after
Authentication failure. Another Auth request during this
time results in improper connection reference and hence
resulting in ACL to persist forever if remote doesn't
disconnect.

Change-Id: Ief920af97d8f27e93460130dc86113b40dc5f6a5
Signed-off-by: Mallikarjuna GB <gbmalli@codeaurora.org>
msm: camera: Fix for inverted preview with front camera in 8930
             fluid device.

             Changed mount angle for front sensor(mt9m114) in 8930
             fluid from 90 to 270.

Change-Id: I47b7b211507963a1c25e67cb5b6131b3143ba349

Signed-off-by: Sai Kumar Sanagavarapu <ssanagav@codeaurora.org>
Fix pairing not successful when remote reports missing pin

Fix was added to update the LE Connection parameters to speed
up pairing before sending pairing request from the host.

CRs-fixed: 459212
Change-Id: Iac52fd90007dcb4ca3dc6e0fd612eba104fb83c2
Signed-off-by: Archana Ramachandran <archanar@codeaurora.org>
Bluetooth: Dont retry eSCO for WBS

This fix will allow the hci event handler
to notify the eSCO connection failure for mSBC,
to BT host which can fallback to CVSD and retry
the eSCO again with a new codec negotiation.
This behavior will allow PTS test case
TC_AG_ACC_BI_12_I to pass as it expects
a codec negotiation after the first attempt
for mSBC is rejected from the PTS.

CRs-Fixed: 390563
Change-Id: I93973d14a035a743f582e751047bf23b66681932
Signed-off-by: Nitin Srivastava <nitinsr@codeaurora.org>
cfg80211: enable TDLS on P2P client interfaces

There's no reason TDLS should be prevented on P2P client
interfaces, and most of the code already handles it, so
allow adding stations for it.

CRs-fixed: 458139
Change-Id: Id5bdde87aa6988731c91176cb5d54ffde975577c

Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
ASoC: wcd9310: Update compander configuration sequence

Update compander configuration sequence for headphone path
to prevent the concurreny of ANC and compander in addition
to bypass the delay buffer for ANC and class G to avoid the
audio delay change between class G enabled and disable modes.

CRs-fixed: 456565
Change-Id: I561cb878906b9e31d8c1b04c145c533090f80f1f
Signed-off-by: Kuirong Wang <kuirongw@codeaurora.org>
ASoC: wcd9310: Update compander gain implementation

When compander is enabled, PA has no impact on the playback
path. In order to keep the output audio level consistently during
compander enabling and disabling so we have to apply the same
gain/attention in PA to digital gain to compensate the PA gain.

CRs-fixed: 456565
Change-Id: Idf760bac35b25aab419a23ce5803c68831850856
Signed-off-by: Kuirong Wang <kuirongw@codeaurora.org>