linux-toradex.git/drivers/slimbus, branch v4.19

slimbus: stream: Fix htmldocs warnings

2018-07-08T13:19:04+00:00

This patch fixes below warning during building htmldoc:
slimbus.h:352: warning: Function parameter or member 'name'
 not described in 'slim_stream_runtime'

This patch also removes documentation for state variable
in struct slim_stream_runtime which was redundant and removed.

Reported-by: kbuild test robot 
Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

slimbus: ngd: add stream support

2018-07-07T15:25:23+00:00

This patch adds support to stream support, this involve implementing
user specific implementation of Data channel management and channel
management SLIMbus messages.

Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

slimbus: stream: add stream support

2018-07-07T15:25:23+00:00

This patch adds support to SLIMbus stream apis for slimbus device.
SLIMbus streaming involves adding support to Data Channel Management and
channel Reconfiguration Messages to slim core plus few stream apis.
>From slim device side the apis are very simple mostly inline with other
stream apis.

Currently it only supports Isochronous and Push/Pull transport protocols,
which are sufficient for audio use cases.

Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

slimbus: ngd: Add qcom SLIMBus NGD driver

2018-07-07T15:24:32+00:00

This patch adds suppor to Qualcomm SLIMBus Non-Generic Device (NGD)
controller driver.
This is light-weight SLIMBus controller driver responsible for
communicating with slave HW directly over the bus using messaging
interface, and communicating with master component residing on ADSP
for bandwidth and data-channel management

Based on intial work from
Karthikeyan Ramasubramanian  and
Sagar Dharia 

Signed-off-by: Srinivas Kandagatla 
Tested-by: Craig Tatlor 
Reviewed-by: Vinod Koul 
Signed-off-by: Greg Kroah-Hartman

slimbus: messaging: add slim_alloc/free_txn_tid()

2018-07-07T15:24:32+00:00

This patch adds slim_alloc_txn_tid() and slim_free_txn_tid() api
to allow controllers like ngd to allocate tids for user specific
commands. This also cleans up the existing code to use single place
for tid allocations and free.

This patch also make the tid allocation cyclic one, its very useful
to track the transactions back during debug.

Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

slimbus: core: add of_slim_device_get() helper

2018-07-07T15:24:32+00:00

On SLIMBus controllers like Qcom NGD(non ported device), controller
can request logical address once the remote side is powered, having a
helper function like this to explicitly enumerate the bus is helpful.
Also codec drivers which are taking to interface device would need
such a helper too.

Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

slimbus: qcom: remove redundant depends in Kconfig

2018-07-07T15:23:12+00:00

QCOM SLIMBus controller is already under a 'if SLIMBUS' in Kconfig,
having depends on SLIMBUS is totally redundant. Just remove it.

Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

slimbus: messaging: initialize completion correctly

2018-07-07T15:23:12+00:00

slim_val_inf can contain random value from stack, make sure the completion
is initialized to NULL while filling the msg.

Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

slimbus: messaging: remove multiple calls to pm_runtime_mark_last_busy

2018-07-07T15:23:12+00:00

There seems to be a multiple calls to pm_runtime_mark_last_busy(),
which looks like a typo.
Fix this by properly adding pm_runtime_put_autosuspend to put controller
in auto suspend state.

Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman

slimbus: messaging: pass correct wbuf

2018-07-07T15:23:12+00:00

There seems to be a typo while filling msg for slim_write, wbuf is
set to NULL instead of rbuf.

Signed-off-by: Srinivas Kandagatla 
Signed-off-by: Greg Kroah-Hartman