This change implements the AP Power Monitor functions for obtaining
current/voltage/power on a specific rail of an Interface.

Testing Done:

$ cat /sys/bus/greybus/devices/1-3/current_now
103
$ cat /sys/bus/greybus/devices/1-3/power_now
303
$ cat /sys/bus/greybus/devices/1-3/voltage_now
203
Signed-off-by: David Lin <dtwlin@google.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Device type info shared to above HAL is currently hard coded
to SPK only. Actual device type is identifed while parsing
widget types from topology FW shared by codec module.
Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Reviewed-by: Mark Greer <mgreer@animalcreek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Currently, single field is used to report device type say SPK,
MIC, HS, HP, etc. However above HAL expects separate fields for
input & ouput device types.
Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Reviewed-by: Mark Greer <mgreer@animalcreek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Add support for greybus metadata format.
Greybus metadata format id is 0x41.
Signed-off-by: Gjorgji Rosikopulos <grosikopulos@mm-sol.com>
Acked-by: Laurent Pinchart <laurent.pinchart@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Align with Greybus specifications and rename Firmware Protocol driver as
Bootrom Protocol driver.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Don't know why, but checkpatch checks if we are running it from top of a
kernel tree or not, but then it also provides an option to suppress the
warning using --no-tree.

Instead of forcing everyone to use this every time, lets make this
behavior default.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

This reverts commit a1d8f2c3856804ed26157104bb203edf4c882a6c.

Added a sysfs entry called pwr_off. When a "1" is passed to it,
it sends a GB_SVC_TYPE_PWR_DOWN command to the SVC, powering it down
along with the switch and INA231 chips.

Testing Done: Tested on EVT1_5, works.
Signed-off-by: Georgi Dobrev <dobrev_georgi@projectara.com>

They belong in a subdir.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

For those who are stuck using old kernel trees, let's include the latest
version of checkpatch.pl into our tree to help prevent coding style
mistakes from creeping in.

Also add spelling.txt to catch spelling errors in comments.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Capture path related settings during startup, perpare &
hwparams were earlier missing.
Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Reviewed-by: Mark Greer <mgreer@animalcreek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Register jack with ASoC sound card in case audio module
populates it via codec FW. Currently, only a single jack
with 4 buttons can be registered for each module.
Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Reviewed-by: Mark Greer <mgreer@animalcreek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

widget pointer was incorrectly modfied while parsing kcontrol
Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Reviewed-by: Mark Greer <mgreer@animalcreek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

No need to duplicate module ops on every registration.

NOTE: Change should be along merged with:
"msm: camera: Change gb_camera_module ops to pointer"
Signed-off-by: Gjorgji Rosikopulos <grosikopulos@mm-sol.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Add support for reading the Ara serial-number attributes.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Move all DME defines to the interface code and rename them using common
prefixes (e.g. DME_T and DME_TOSHIBA).

The DDB L1 attributes are defined by MIPI and the Ara attributes are
currently Toshiba specific so move them all out of the Greybus protocol
header.

Also rename the Greybus init-status values using a GB_INIT prefix.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Clean up the ES2 VID/PID hack using a new quirk flag.

Note that the hack is now used if and only if the interface is a Toshiba
ES2 bridge (and not if the attributes read zero).
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Add ES2 init-status quirk flag instead of checking MID/PID directly.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Read the DDBL1 and Ara DME attributes when activating an interface.

These values are currently provided by the SVC in the intf_hotplug
request, which is about to go away.

Note that there are currently no standard Ara VID and PID attributes and
that Toshiba uses attributes from the reserved space in ES3. For now, we
therefore refuse to enumerate any non-Toshiba bridges.

Also note that the Ara serial number is currently not supported.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Add NULL suffix to the don't-care DME selector index.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Clean up the device id-handling and make sure we never allocate invalid
device ids due to a missing upper bound.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Deactivate an interface immediately on enumeration failure.

Note that an interface is always registered.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Creating and destroying a route to an interface is arguably an interface
operation and belongs with the interface code.

Add new interface_activate and interface_deactivate helpers that will be
used to activate and deactivate an interface in the new interface boot
sequence.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Clean up handling of the ES3-bootrom quirks by adding an interface
quirk-flags field that is set appropriately when we detect that the ES3
bootrom is running.

Note that we need to reserve the DME_DIS_UNIPRO_BOOT_STARTED and
DME_DIS_FALLBACK_UNIPRO_BOOT_STARTED status values for the ES3 bootrom,
which does not support any CPort features (unlike later boot stages).
Add a BOOTROM infix to the defines to make this more clear.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Clean up and rename the interface-init-status helper.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

The ES2 boot status is stored in the least significant byte.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Reading and clearing the boot status of an interface is an interface
operation and belongs in the interface code.

As part of the reworked interface boot sequence, we also want to do this
when enabling (enumerating) a Greybus interface.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Use tabs to indent CPort-flag values.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

The SVC connection is special and does not belong to neither an
interface or a bundle.

Remove the unused SVC bundle-id define.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Remove unused, bogus interface-reset helper.

The interface-reset operation is initiated by the SVC, not the AP.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Align the DME-attribute values in the protocol header.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Fix two greybus container-of macros that used the pointer name for the
member.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Cleanup APBridge sequence only in case of last module plugged-out.
For other modules, unregister cportid is sufficient.
Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Reviewed-by: Mark Greer <mark.greer@animalcreek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Use seperate driver to process GB Audio modules plugged-in.
It'll use helper function register_module to attach itself
to gbaudio-codec driver.
Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Reviewed-by: Mark Greer <mark.greer@animalcreek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

We have single I2S port via APB1 for communication with all
audio modules. Thus, we should register single codec driver
and manage all individual audio modules internally within
this driver.
Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Reviewed-by: Mark Greer <mark.greer@animalcreek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

This converts all drivers to use the gb_connection_get_data() and
gb_connection_set_data() functions to make it a bit more explicit as to
what is going on.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Add gb_connection_get_data() and gb_connection_set_data() to get and set
the private data of a connection, instead of "open coding" it
everywhere.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Enabling greybus ftrace event causes null pointer access due to
that gb_message to SVC has no Bundle. Fix it by handling this in
the trace header.

Testing Done:
$ echo 1 > /d/tracing/event/greybus/enable
 [002] ...1    54.504426: gb_message_send: greybus:1-svc op=0023 if_id=0 hd_id=0 l=0
 [002] ...1    54.504461: gb_host_device_send: greybus:greybus1 if_id=0 l=8
Signed-off-by: David Lin <dtwlin@google.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

There is no reason to use end-to-end flow control for Greybus
audio data connections so disable it and enable Controlled
Segment Dropping (CSD).

Testing Done: Played music using audio modules on an EVT1.5.

CC: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
CC: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Mark Greer <mgreer@animalcreek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

Registering more then one module at same time was not
possible with previous implementation. Also unregistering
of the module was missing leading to many instability issues
when camera module is ejected when camera is still active.
Signed-off-by: Gjorgji Rosikopulos <grosikopulos@mm-sol.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>