platform/kernel/linux-rpi.git
8 years agogreybus: Documentation/sysfs: add entry for host device bus_id
Sandeep Patil [Fri, 29 Apr 2016 14:13:24 +0000 (07:13 -0700)]
greybus: Documentation/sysfs: add entry for host device bus_id

Add description for greybus host device bus_id attribute

Signed-off-by: Sandeep Patil <sspatil@google.com>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: hd: add bus_id attribute
Sandeep Patil [Fri, 29 Apr 2016 14:13:23 +0000 (07:13 -0700)]
greybus: hd: add bus_id attribute

The greybus host device id can only be read by parsing the uevent if one
wants to identify a specific host device 'or' bus. This is 'lsgb' uses
today.

This change adds a bus_id attribute so libraries can identify multiple
host devices 'or' bus if they exist.

Testing Done:
Tested on Arche,
'cat /sys/bus/greybus/devices/greysbus1/bus_id'

Signed-off-by: Sandeep Patil <sspatil@google.com>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: interface: fix broken UniPro flow control
Johan Hovold [Thu, 28 Apr 2016 14:19:39 +0000 (16:19 +0200)]
greybus: interface: fix broken UniPro flow control

A recent commit inadvertently disabled E2EFC on all interface
connections, due to a failure to clear the ES3 bootrom quirk flags
during mode switch.

Testing Done: Verified that the CPort flags are again set to 0x7 for
non-bootrom interface connections.

Fixes: 5b638080e94e ("svc: keep interfaces registered during
mode switch")
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: firmware: Add firmware management bundle driver
Viresh Kumar [Tue, 26 Apr 2016 04:50:49 +0000 (10:20 +0530)]
greybus: firmware: Add firmware management bundle driver

All firmware packages on the Modules or Interfaces are now managed by a
special Firmware Management Protocol. The Interface Manifest shall
at least contain the Firmware Management Bundle and a Firmware
Management Protocol CPort within it.

The bundle may contain additional CPorts based on the extra
functionality required to manage firmware packages.

For example, this is how the Firmware Management Bundle of the Interface
Manifest may look like:

; Firmware Management Bundle (Bundle 1):
[bundle-descriptor 1]
class = 0x16

; (Mandatory) Firmware Management Protocol on CPort 1
[cport-descriptor 1]
bundle = 1
protocol = 0x18

; (Optional) Firmware Download Protocol on CPort 2
[cport-descriptor 2]
bundle = 1
protocol = 0x17

; (Optional) SPI protocol on CPort 3
[cport-descriptor 3]
bundle = 1
protocol = 0x0b

; (Optional) Component Authentication Protocol (CAP) on CPort 4
[cport-descriptor 4]
bundle = 1
protocol = 0xXX //TBD

This patch adds the basic firmware-management bundle driver, which just
creates a firmware-management connection. Support for individual
protocols will be added separately.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: audio: Identify jack type based on attributes reported
Vaibhav Agarwal [Wed, 13 Apr 2016 04:23:39 +0000 (09:53 +0530)]
greybus: audio: Identify jack type based on attributes reported

Originally, idea was to use widget_type to identify jack_type.
However, suggestive way is to identify jack based on jack
attributes.

Changes already exists in codec FW to report jack attributes.

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>
8 years agogreybus: audio: Rename widget_type to jack_attrubute
Vaibhav Agarwal [Wed, 13 Apr 2016 04:23:38 +0000 (09:53 +0530)]
greybus: audio: Rename widget_type to jack_attrubute

This fields actually populates jack attribute. Thus, renamed to
reflect the real purpose.

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>
8 years agogreybus: audio: Reorder gb_deactivate sequence to avoid protocol error
Vaibhav Agarwal [Sat, 23 Apr 2016 14:34:05 +0000 (20:04 +0530)]
greybus: audio: Reorder gb_deactivate sequence to avoid protocol error

gb_activate_tx/rx is triggered from _prepare() & gb_deactivate
from shutdown(). This may cause protocol error in case shutdown
executes without _prepare due to some hw_params failure.

Also, reorganise _prepare & _shutdown calls to make it more
readable & cleaner.

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>
8 years agogreybus: audio: Changes in response to ASoC cleanup
Vaibhav Agarwal [Thu, 21 Apr 2016 16:44:02 +0000 (22:14 +0530)]
greybus: audio: Changes in response to ASoC cleanup

Update Makefile in response to SND_SOC_DYNAMIC_DAILINK cflag
removal.

Update files for msm-dynamic-dailink.h header file removal.

Update in response to API name changes. Also, acquire sound card
controls_rwsem before adding kcontrols to avoid deadlock.

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>
8 years agogreybus: Bundle: Initialize dma_mask for bundle device
Viresh Kumar [Mon, 25 Apr 2016 16:20:36 +0000 (21:50 +0530)]
greybus: Bundle: Initialize dma_mask for bundle device

We missed this only for bundle device, fix it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc: free pwrmon_rails memory upon exit
David Lin [Sat, 23 Apr 2016 02:03:43 +0000 (19:03 -0700)]
greybus: svc: free pwrmon_rails memory upon exit

For every time SVC instance is created, memories for storing the rail IDs
are allocated, however, they are not freed when the SVC is destroyed.
This patch fixes the memory leak by freeing the memory when debugfs for
SVC is no longer needed.

Testing Done:
- Check pwrmon debugfs after turning on and off SVC

Signed-off-by: David Lin <dtwlin@google.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc: clean up gb_svc struct for pwrmon
David Lin [Sat, 23 Apr 2016 02:03:42 +0000 (19:03 -0700)]
greybus: svc: clean up gb_svc struct for pwrmon

The power rail names and counts are unnecessarily stored in the gb_svc
structure once the SVC created, this causes waste of memory usage. This
patch removes rail names and rail counts storage from th gb_svc
structure.

Testing Done:
- Validated the readings from /d/greybus/1-svc/pwrmon/*

Signed-off-by: David Lin <dtwlin@google.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc: implement interface mailbox event
Johan Hovold [Sat, 23 Apr 2016 16:47:31 +0000 (18:47 +0200)]
greybus: svc: implement interface mailbox event

Implement the new interface mailbox-event operation.

The event is sent by the SVC under certain conditions when an interface
updates its mailbox value. Specifically, this event will be used to
implement the new mode-switch functionality.

Upon reception the AP verifies that the interface is known and that the
mailbox has the expected MAILBOX_GREYBUS value. If so, the interface is
disabled before being re-enabled (re-enumerated).

Note that during mode-switch, the interface will typically already be in
a disabled state when the mailbox is written (with the ES3 bootrom being
the notable exception).

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc: implement module inserted and removed operations
Johan Hovold [Sat, 23 Apr 2016 16:47:30 +0000 (18:47 +0200)]
greybus: svc: implement module inserted and removed operations

Implement the new module inserted and removed operations.

The SVC sends these after detecting a module insertion or removal, and
in the former case after having determined the module geometry (i.e.
position and size).

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: interface: implement interface activation and power down
Johan Hovold [Sat, 23 Apr 2016 16:47:29 +0000 (18:47 +0200)]
greybus: interface: implement interface activation and power down

Implement the interface activation and power-down sequences.

Note that all the required SVC operations have not yet been implemented
so some stub functions are used for now.

Support for hibernating the UniPro link depends on future
power-management work so a stub function is used also for this.

Interface type handling will be refined later.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc: add stub interface-activate function
Johan Hovold [Sat, 23 Apr 2016 16:47:28 +0000 (18:47 +0200)]
greybus: svc: add stub interface-activate function

Add message structures (based on the current spec) for the SVC Interface
Activate operation, and a stub function that always return the Greybus
interface type.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc: add stub functions for v_sys, refclk and unipro
Johan Hovold [Sat, 23 Apr 2016 16:47:27 +0000 (18:47 +0200)]
greybus: svc: add stub functions for v_sys, refclk and unipro

Add stub functions for v_sys, refclk and unipro resource management.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: interface: add active state flag
Johan Hovold [Sat, 23 Apr 2016 16:47:26 +0000 (18:47 +0200)]
greybus: interface: add active state flag

Add active state flag to avoid deactivating an interface which is
already off.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: module: implement controlled module removal
Johan Hovold [Sat, 23 Apr 2016 16:47:25 +0000 (18:47 +0200)]
greybus: module: implement controlled module removal

Implement controlled module removal through a new module attribute
"eject".

When a non-zero argument is written to the attribute, all interfaces of
the module are disabled (e.g. bundles are deregistered) and deactivated
(e.g. powered off) before instructing the SVC to physically eject the
module.

Note that the module device is not deregistered until the SVC has
reported the physical removal of all of its interfaces.

A new interface mutex is added to enforce interface state-change
serialisation.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: core: add module abstraction
Johan Hovold [Sat, 23 Apr 2016 16:47:24 +0000 (18:47 +0200)]
greybus: core: add module abstraction

Add Greybus module abstraction that will be used to implement controlled
module removal (eject) and represent module geometry.

Greybus module devices correspond to physical modules and have one or
more interfaces. Modules have an id that is identical to the id of their
primary interface, which in turn is the interface with lowest numbered
id. The module name is constructed from the bus and module id:

        <bus_id>-<module_id>

Interfaces, bundles, and control devices are consequently renamed as

        <bus_id>-<module_id>.<interface_id>
        <bus_id>-<module_id>.<interface_id>.<bundle_id>
        <bus_id>-<module_id>.<interface_id>.ctrl

As before, interface ids (and therefore in a sense now also module ids)
correspond to physical interface positions on the frame.

Modules have the following attributes:

        module_id
        num_interfaces

where module_id is the id of the module and num_interface the number of
interfaces the module has.

Note that until SVC module-size detection has been implemented, all
interfaces are considered to be part of 1x2 modules. Specifically, the
two interfaces of a 2x2 module will be presented as two 1x2 modules for
now.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc: refactor interface re-enable
Johan Hovold [Sat, 23 Apr 2016 16:47:23 +0000 (18:47 +0200)]
greybus: svc: refactor interface re-enable

Add interface re-enable helper that is used during mode switch to
disable and re-enable (enumerate) an interface.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: Documentation/sysfs: sort entries alphabetically
Johan Hovold [Sat, 23 Apr 2016 16:47:22 +0000 (18:47 +0200)]
greybus: Documentation/sysfs: sort entries alphabetically

The attribute entries have been kept mostly sorted within each device
type. Let's move the three more-recently added interface attributes
that were not.

Suggested-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: Documentation/sysfs: add entry for control device
Johan Hovold [Sat, 23 Apr 2016 16:47:21 +0000 (18:47 +0200)]
greybus: Documentation/sysfs: add entry for control device

Add an entry for the recently added interface control device.

Also move the bundle-device entry below the control-device entries.

Reported-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc: use a common prefix for debugfs functions
Johan Hovold [Sat, 23 Apr 2016 16:47:20 +0000 (18:47 +0200)]
greybus: svc: use a common prefix for debugfs functions

Use the common gb_svc functions also for the recently added svc
functions. Having a common prefix clearly signals where the code
resides, something which improves readability and helps during
debugging (e.g. stack traces).

Note that all functions in svc.c except for these three use the common
prefix with the exception of the pwr_debugfs callbacks (that still use
*a* common prefix) and the attribute accessors (than can not have a
common prefix due to some macro magic).

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: audio: acquire wakelock during active playback
Vaibhav Agarwal [Mon, 25 Apr 2016 11:48:17 +0000 (17:18 +0530)]
greybus: audio: acquire wakelock during active playback

This change was missed while merging original patch
commit-id: 53c765c33f4a69c31027ec012e717d303bd4feca
Thus submitting it again.

Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: arche-ctrl: Don't expose driver internals to arche-platform driver
Viresh Kumar [Wed, 20 Apr 2016 06:18:37 +0000 (11:48 +0530)]
greybus: arche-ctrl: Don't expose driver internals to arche-platform driver

We have chosen the *ugly* way of registering two platform drivers from
the module_init() of only one of them, so that we can avoid having two
separate modules for them.

But we should still be doing this in a sane way. There is no need to
expose internals of arche-ctrl to arche-platform, like PM-ops, probe,
resume, id-table, etc. Just expose an init and a exit callback.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: audio: acquire wakelock during active playback
Vaibhav Agarwal [Fri, 22 Apr 2016 18:13:19 +0000 (11:13 -0700)]
greybus: audio: acquire wakelock during active playback

use pm_stay_awake & pm_relax to avoid suspend sequence during
active playback

testing Done:
Music Playback ongoing
$ cat /sys/devices/soc.0/qcom,ara-codec.82/power/wakeup_active
1
Music Playback stopped
$ cat /sys/devices/soc.0/qcom,ara-codec.82/power/wakeup_active
0

Tested-by: David Lin <dtwlin@google.com>
Reviewed-by: David Lin <dtwlin@google.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Akash Choudhari <akashtc@google.com>
Signed-off-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
8 years agogreybus: svc: fix function-parameter indentation
Johan Hovold [Thu, 21 Apr 2016 09:43:38 +0000 (11:43 +0200)]
greybus: svc: fix function-parameter indentation

We really shouldn't be passing response structures around this way, but
since we now are, let's at least make sure not to break the 80 col
limit.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc: fix pwrmon return value
Johan Hovold [Thu, 21 Apr 2016 09:43:37 +0000 (11:43 +0200)]
greybus: svc: fix pwrmon return value

Errno -ENOSYS is reserved for missing syscalls, replace it with ENOMSG.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc: keep error messages uniform
Johan Hovold [Thu, 21 Apr 2016 09:43:36 +0000 (11:43 +0200)]
greybus: svc: keep error messages uniform

All SVC error messages, except for a few recently added ones, place the
errno last after a colon (:). Let's at least try to be consistent
within the svc code.

Note that this format also allows for more concise messages without risk
for ambiguity.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: es2: move ap_disconnect() below ap_probe()
Viresh Kumar [Thu, 21 Apr 2016 06:01:16 +0000 (11:31 +0530)]
greybus: es2: move ap_disconnect() below ap_probe()

This makes it more readable, as the functions are present in this order
in the structure as well. Also keeping these two makes more sense.

Tested by removing the gb-es2.ko module on both EVT1.5 and qemu with
gbsim.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: es2: don't protest when getting -ENOENT/ESHUTDOWN USB errors
Viresh Kumar [Thu, 21 Apr 2016 06:01:15 +0000 (11:31 +0530)]
greybus: es2: don't protest when getting -ENOENT/ESHUTDOWN USB errors

-ENOENT or -ESHUTDOWN happens when the urbs are being killed from
->disconnect() callback.  Don't complain to userspace about this, as the
user will see this on es2 module removal.

Tested by removing the gb-es2.ko module on both EVT1.5 and qemu with
gbsim. The driver doesn't throw anymore errors like:
"urb cport in error -2 (dropped)".

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Tested-by: David Lin <dtwlin@google.com>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: es2: disable cport-in after remove greybus host device
Viresh Kumar [Thu, 21 Apr 2016 06:01:14 +0000 (11:31 +0530)]
greybus: es2: disable cport-in after remove greybus host device

This allows greybus to do operations before being removed.

Tested by removing the gb-es2.ko module on both EVT1.5 and qemu with
gbsim. The driver removes the greybus host device successfully before
disabling the urbs. The errors are still coming ("urb cport in error -2
(dropped)"), but with an error value -2 (ENOENT) instead of -108. And
that happens while the urbs are disabled, not while doing greybus
operations.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: David Lin <dtwlin@google.com>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: es2: Allow proper release of greybus host device
Viresh Kumar [Thu, 21 Apr 2016 06:01:13 +0000 (11:31 +0530)]
greybus: es2: Allow proper release of greybus host device

The usb core disables the Interface prior to calling ->disconnect() for
the usb driver. That disallows the es2 driver to remove the greybus host
device and every entity below it in a clean way, as the greybus core may
want to do few operations over the usb connection before getting
removed.

And so we see bunch of errors while we remove the es2 module, like:
"urb cport in error -108 (dropped)"

The usb core has a special per-driver flag, 'soft_unbind', for such usb
drivers. If this flag is set by a driver, the usb core doesn't disable
the Interface prior to calling ->disconnect().

Set that flag for es2.

Tested by removing the gb-es2.ko module on both EVT1.5 and qemu with
gbsim. The interface isn't disabled by the core and the driver is still
able initiate greybus operations over the Interface. This can be
properly tested only after the next patch which removes the greybus host
device before disabling the urbs.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: audio-codec: Staticize few routines to fix build warnings
Viresh Kumar [Thu, 21 Apr 2016 02:41:57 +0000 (08:11 +0530)]
greybus: audio-codec: Staticize few routines to fix build warnings

This fixes below warnings ..

greybus/audio_codec.c:20:32: warning: symbol 'find_data' was not declared. Should it be static?
greybus/audio_codec.c:955:6: warning: symbol 'gbaudio_codec_cleanup' was not declared. Should it be static?

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Vaibhav Agarwal <vaibhav.agarwal@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: bootrom: fix typo
Viresh Kumar [Thu, 21 Apr 2016 02:43:01 +0000 (08:13 +0530)]
greybus: bootrom: fix typo

s/Firware/Firmware

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: camera-gb: Remove hardcode for CSI TX number of lanes
Evgeniy Borisov [Mon, 18 Apr 2016 13:27:36 +0000 (16:27 +0300)]
greybus: camera-gb: Remove hardcode for CSI TX number of lanes

The number of CSI TX lanes is hardcoded to 4. Removing
this and start using value from configure stream response.

NOTE: The patch depends on the CSI init change:
"Use GB CSI params to init camera sub-devs"

Signed-off-by: Evgeniy Borisov <eborisov@mm-sol.com>
Reviewed-by: Gjorgji Rosikopulos <grosikopulos@mm-sol.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc: add AP power measurements debugfs support
David Lin [Wed, 20 Apr 2016 23:55:08 +0000 (16:55 -0700)]
greybus: svc: add AP power measurements debugfs support

This change adds the AP Power Monitor functions to
read out all the rails power information monitored by
the SVC.

Testing Done:
- $ cat /d/greybus/1-svc/pwrmon/*/*
  and validate the output with the svc stub power
  monitor functions
- $ tree /d/greybus/1-svc/pwrmon
  | | | |---pwrmon
  | | | | |---DUMMY_RAIL_1
  | | | | | |---current_now
  | | | | | |---power_now
  | | | | | |---voltage_now
  | | | | |---DUMMY_RAIL_2
  | | | | | |---current_now
  | | | | | |---power_now
  | | | | | |---voltage_now
  | | | | |---DUMMY_RAIL_3
  | | | | | |---current_now
  | | | | | |---power_now
  | | | | | |---voltage_now
  | | | | |---DUMMY_RAIL_4
  | | | | | |---current_now
  | | | | | |---power_now
  | | | | | |---voltage_now

Signed-off-by: David Lin <dtwlin@google.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: es2: Fix apb_log null pointer exception
David Lin [Mon, 18 Apr 2016 20:11:31 +0000 (13:11 -0700)]
greybus: es2: Fix apb_log null pointer exception

Read on apb_log causes null pointer exception due to the missing es2
device pointer passing to the debugfs.

Testing done:
- Enable apb_log and cat it

Signed-off-by: David Lin <dtwlin@google.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: uart: Update line coding settings only when needed
Axel Haslam [Wed, 20 Apr 2016 18:47:20 +0000 (20:47 +0200)]
greybus: uart: Update line coding settings only when needed

The check for line coding changed should use memcmp and not memcpy.

Testing done: trivial

Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc: remove interface-remove helper
Johan Hovold [Wed, 13 Apr 2016 17:19:09 +0000 (19:19 +0200)]
greybus: svc: remove interface-remove helper

Remove unnecessary interface-remove helper.

Also add comment about why the disconnected flag is set.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc: keep interfaces registered during mode switch
Johan Hovold [Wed, 13 Apr 2016 17:19:08 +0000 (19:19 +0200)]
greybus: svc: keep interfaces registered during mode switch

Keep a detected interface registered until it is physically removed.
Specifically, do not re-register an interface that is switching mode.

Note that this also allows us to get rid of some nasty hacks from core.
The Ara VID/PID bootrom hack for ES2 will continue to work, but is now
mostly confined to the bootrom driver.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc: make sure to deactivate all interfaces on disconnect
Johan Hovold [Wed, 13 Apr 2016 17:19:07 +0000 (19:19 +0200)]
greybus: svc: make sure to deactivate all interfaces on disconnect

Make sure to deactivate all interfaces when the svc is going away.

This is needed to eventually be able to do controlled teardown of the
unipro network.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: interface: reduce control-device lifetime
Johan Hovold [Wed, 13 Apr 2016 17:19:06 +0000 (19:19 +0200)]
greybus: interface: reduce control-device lifetime

Make the control-device lifetime coincide with when the interface is
enabled (enumerated).

This is needed to be able register a new control device after a mode
switch.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: control: return error pointer when failing to create control device
Johan Hovold [Wed, 13 Apr 2016 17:19:05 +0000 (19:19 +0200)]
greybus: control: return error pointer when failing to create control device

Return an error pointer when failing to create a control device.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: interface: move vendor and product strings to control device
Johan Hovold [Wed, 13 Apr 2016 17:19:04 +0000 (19:19 +0200)]
greybus: interface: move vendor and product strings to control device

The control device is an abstraction of the control connection over
which a greybus manifest is retrieved. As interfaces switch modes (e.g.
after boot-over-unipro) they expose new manifests, which can contain
different vendor and product strings.

Eventually control devices will be deregistered and recreated after an
interface mode switch, while the interface itself remains registered.

Note that only interfaces of type greybus will have control devices.
Specifically, dummy interfaces will not.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: interface: register control device at hotplug
Johan Hovold [Wed, 13 Apr 2016 17:19:03 +0000 (19:19 +0200)]
greybus: interface: register control device at hotplug

Make sure to register also the control device along with any bundles
when registering an interface.

Note that we currently ignore failures to register the control device
just as we do for bundle devices.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: core: make the control object be a device
Johan Hovold [Wed, 13 Apr 2016 17:19:02 +0000 (19:19 +0200)]
greybus: core: make the control object be a device

Make the control object be a greybus device.

The control device will be used to expose attributes specific to
greybus-type interfaces.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: control: move timesync-operation functions
Johan Hovold [Wed, 13 Apr 2016 17:19:01 +0000 (19:19 +0200)]
greybus: control: move timesync-operation functions

Move the timesync-operation functions above the control-object
management functions, which is where all other operation implementations
reside.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: interface: disable interface on registration failures
Johan Hovold [Wed, 13 Apr 2016 17:19:00 +0000 (19:19 +0200)]
greybus: interface: disable interface on registration failures

Disable and deactivate an interface immediately on registration
failures.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: Documentation/sysfs: add example control devices
Johan Hovold [Wed, 13 Apr 2016 17:18:59 +0000 (19:18 +0200)]
greybus: Documentation/sysfs: add example control devices

Add control devices to the example sysfs tree.

Control devices are named

<bus_id>-<module_id>.<intf_id>.ctrl

and expose attributes that are specific to the greybus interface type.
Specifically, dummy interfaces do not have a control device.

Currently, only the vendor and product strings extracted from the
manifest are exported.

A subtree of the example tree now looks as follows:

greybus1/
├── 1-5
│   â”œâ”€â”€ 1-5.5
│   â”‚   â”œâ”€â”€ 1-5.5.2
│   â”‚   â”‚   â”œâ”€â”€ bundle_class
│   â”‚   â”‚   â”œâ”€â”€ bundle_id
│   â”‚   â”‚   â””── state
│   â”‚   â”œâ”€â”€ 1-5.5.ctrl
│   â”‚   â”‚   â”œâ”€â”€ product_string
│   â”‚   â”‚   â””── vendor_string
│   â”‚   â”œâ”€â”€ ddbl1_manufacturer_id
│   â”‚   â”œâ”€â”€ ddbl1_product_id
│   â”‚   â”œâ”€â”€ interface_id
│   â”‚   â”œâ”€â”€ product_id
│   â”‚   â”œâ”€â”€ serial_number
│   â”‚   â””── vendor_id
│   â”œâ”€â”€ 1-5.6
│   â”‚   â””── interface_id
│   â”œâ”€â”€ eject
│   â”œâ”€â”€ module_id
│   â””── num_interfaces
└── 1-svc

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: Documentation/sysfs: rename the svc eject attribute
Johan Hovold [Wed, 13 Apr 2016 17:18:58 +0000 (19:18 +0200)]
greybus: Documentation/sysfs: rename the svc eject attribute

The svc eject attribute was added as an interim solution and is still
used to implement a form of forced ejection.

This will soon be superseded by the module eject attribute, which will
provide an interface for clean eject. We may keep the forced-eject
mechanism around indefinitely, albeit possibly with a different name
(e.g. forced_intf_eject). Either way, update the example tree to reflect
the actual name, intf_eject, which currently used for this svc attribute.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: Documentation/sysfs: remove interface unique_id attribute
Johan Hovold [Wed, 13 Apr 2016 17:18:57 +0000 (19:18 +0200)]
greybus: Documentation/sysfs: remove interface unique_id attribute

Remove the interface unique_id attribute, which there is currently no
plan to ever implement.

Note that the Ara serial numbers are already exposed through the
serial_number attribute.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: Documentation: move the interface power attributes
Johan Hovold [Wed, 13 Apr 2016 17:18:56 +0000 (19:18 +0200)]
greybus: Documentation: move the interface power attributes

Move the interface power attributes after the other interface attributes
to keep the attributes grouped by device type.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: manifest: fix illegal free in error path
Johan Hovold [Wed, 13 Apr 2016 17:18:55 +0000 (19:18 +0200)]
greybus: manifest: fix illegal free in error path

The manifest-parsing code could end up leaving the interface
vendor_string set to an error pointer that we'd eventually try to free
when destroying the interface.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: spi: use timeout request send operation
Rui Miguel Silva [Wed, 20 Apr 2016 13:40:23 +0000 (14:40 +0100)]
greybus: spi: use timeout request send operation

When transfer speed is too slow (less than 17Khz) the operation can take
longer than the default greybus timeout. Because of this we need to use
the request_send_sync_timeout and calculate the correct timeout for each
operation.

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Tested-by: Philip Yang <philipy@bsquare.com>
Tested-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: spi: fix message transfer over greybus
Rui Miguel Silva [Wed, 20 Apr 2016 13:40:22 +0000 (14:40 +0100)]
greybus: spi: fix message transfer over greybus

The actual implementation of transfer_one_message have problems with
some cases in the possible transfer options. We try to maximize the
number of spi transfers in one greybus operation and need to save state
until the full message is dispatch over greybus.

Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
Tested-by: Philip Yang <philipy@bsquare.com>
Tested-by: Axel Haslam <ahaslam@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc watchdog: Disable watchdog upon entering suspend
David Lin [Fri, 15 Apr 2016 19:45:16 +0000 (01:15 +0530)]
greybus: svc watchdog: Disable watchdog upon entering suspend

SVC watchdog should be disabled when device is entering suspend mode.

Testing done:
 - Sanity tested on EVT1.5
 - Check no SVC ping during the suspend process
 - Check SVC watchdog is back on pinging once device is resumed

Signed-off-by: David Lin <dtwlin@google.com>
Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
[vaibhav.hiremath@linaro.org: Removed unwanted check in notifier callback and
Updated commit description]
Tested-by: Sandeep Patil <sspatil@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: arche-platform: Power-off unipro subsystem upon suspend
David Lin [Fri, 15 Apr 2016 19:45:15 +0000 (01:15 +0530)]
greybus: arche-platform: Power-off unipro subsystem upon suspend

Switch off APBs/SVC/Switch in the suspend call notifier. Note that
this is an interim solution to enable fishfooding.

Testing done:
 - Passed QA sanity test on EVT1.5
 - Suspend current measured at ~70mW

Signed-off-by: David Lin <dtwlin@google.com>
Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
[vaibhav.hiremath@linaro.org: Updated commit description]
Tested-by: Sandeep Patil <sspatil@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: Fixup __u64, __u32 to __le64, __le32 in timesync declarations
Bryan O'Donoghue [Tue, 12 Apr 2016 16:15:11 +0000 (17:15 +0100)]
greybus: Fixup __u64, __u32 to __le64, __le32 in timesync declarations

A number of data in TimeSync command structures are declared __u64/__u32
instead of __le64/__le32, I forgot to put this through an x86_64 compile
before presentation for merge and as a result didn't catch this error. This
patch fixes.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: arche-platfrom: Get rid of 2sec delay in USB3613 configuration
Vaibhav Hiremath [Tue, 12 Apr 2016 11:48:47 +0000 (17:18 +0530)]
greybus: arche-platfrom: Get rid of 2sec delay in USB3613 configuration

Earlier during boot sequence implementation, we had seen race between
USb3613 and APB boot, and since APB boot time is ~2sec, we delayed
USb3613 configuration for 2sec after APB deassertion of reset.

This obviously won't work in the case of suspend/resume, where we would
like to put APB into OFF state and coldboot in resume.

With the latest FW changes, we do not see any race issue. I have done
regression testing (> 50 iteration of reboot + unipro link up and down)
without any issues.

So lets get rid of the 2sec delay with this patch.

Testing Done: Tested on EVT 1.5 platform.

Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Tested-by: David Lin <dtwlin@google.com>
Reviewed-by: David Lin <dtwlin@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: camera-gb: Extend the configure streams interface
Evgeniy Borisov [Wed, 6 Apr 2016 12:22:45 +0000 (15:22 +0300)]
greybus: camera-gb: Extend the configure streams interface

Extending the configure streams interface with CSI params.
Getting CSI frequency data form configure streams response.
 * num_lanes - Number of CSI data lanes
 * clk_freq - CSI clock frequency in Hz
 * lines_per_second - Total number of lines in a second of
transmission (blanking included)

From the AP side we need to know for the CSI speed
configuration. This information is needed for dynamically
bandwidth calculations.

NOTE: Change should be along merged with corresponding
      interface change in kernel:
      "camera: Extend the configure streams
      interface with CSI params"

Signed-off-by: Evgeniy Borisov <eborisov@mm-sol.com>
Reviewed-by: Gjorgji Rosikopulos <grosikopulos@mm-sol.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: svc: add Interface power measurements support
David Lin [Fri, 8 Apr 2016 03:15:30 +0000 (20:15 -0700)]
greybus: svc: add Interface power measurements support

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>
8 years agogreybus: audio: Update device type based on widget types
Vaibhav Agarwal [Wed, 30 Mar 2016 07:53:56 +0000 (13:23 +0530)]
greybus: audio: Update device type based on widget types

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>
8 years agogreybus: audio_manager: Split device type into i/p & o/p devices
Vaibhav Agarwal [Wed, 30 Mar 2016 07:53:55 +0000 (13:23 +0530)]
greybus: audio_manager: Split device type into i/p & o/p devices

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>
8 years agogreybus: camera: Add metadata format
Gjorgji Rosikopulos [Fri, 1 Apr 2016 14:32:43 +0000 (17:32 +0300)]
greybus: camera: Add metadata format

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>
8 years agogreybus: firmware: Rename to bootrom protocol
Viresh Kumar [Sun, 3 Apr 2016 06:48:35 +0000 (12:18 +0530)]
greybus: firmware: Rename to bootrom protocol

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>
8 years agogreybus: checkpatch.pl: Mark --no-tree as default option
Viresh Kumar [Fri, 1 Apr 2016 05:45:42 +0000 (11:15 +0530)]
greybus: checkpatch.pl: Mark --no-tree as default option

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>
8 years agogreybus: Revert "Added a sysfs entry to power down the SVC"
Akash Choudhari [Sat, 2 Apr 2016 03:10:01 +0000 (20:10 -0700)]
greybus: Revert "Added a sysfs entry to power down the SVC"

This reverts commit a1d8f2c3856804ed26157104bb203edf4c882a6c.

8 years agogreybus: Added a sysfs entry to power down the SVC
Georgi Dobrev [Thu, 24 Mar 2016 11:37:21 +0000 (13:37 +0200)]
greybus: Added a sysfs entry to power down the SVC

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>
8 years agogreybus: scripts: create subdir for checkpatch and spelling.txt
Greg Kroah-Hartman [Fri, 1 Apr 2016 05:35:24 +0000 (22:35 -0700)]
greybus: scripts: create subdir for checkpatch and spelling.txt

They belong in a subdir.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: trivial: add checkpatch.pl to the tree
Greg Kroah-Hartman [Fri, 1 Apr 2016 05:26:39 +0000 (22:26 -0700)]
greybus: trivial: add checkpatch.pl to the tree

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>
8 years agogreybus: audio: Add I2S_RX path related settings
Vaibhav Agarwal [Tue, 29 Mar 2016 11:02:37 +0000 (16:32 +0530)]
greybus: audio: Add I2S_RX path related settings

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>
8 years agogreybus: audio: Added jack support to audio module
Vaibhav Agarwal [Tue, 29 Mar 2016 11:02:36 +0000 (16:32 +0530)]
greybus: audio: Added jack support to audio module

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>
8 years agogreybus: audio: Fix widget pointer update during control parsing
Vaibhav Agarwal [Tue, 29 Mar 2016 11:02:35 +0000 (16:32 +0530)]
greybus: audio: Fix widget pointer update during control parsing

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>
8 years agogreybus: camera: Use pointer for gb camera module ops
Gjorgji Rosikopulos [Thu, 31 Mar 2016 11:12:45 +0000 (14:12 +0300)]
greybus: camera: Use pointer for gb camera module ops

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>
8 years agogreybus: interface: add Ara serial-number support
Johan Hovold [Tue, 29 Mar 2016 22:56:12 +0000 (18:56 -0400)]
greybus: interface: add Ara serial-number support

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>
8 years agogreybus: interface: clean up DME attribute handling
Johan Hovold [Tue, 29 Mar 2016 22:56:11 +0000 (18:56 -0400)]
greybus: interface: clean up DME attribute handling

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>
8 years agogreybus: interface: clean up ES2 VID/PID hack
Johan Hovold [Tue, 29 Mar 2016 22:56:10 +0000 (18:56 -0400)]
greybus: interface: clean up ES2 VID/PID hack

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>
8 years agogreybus: interface: add ES2 init-status quirk flag
Johan Hovold [Tue, 29 Mar 2016 22:56:09 +0000 (18:56 -0400)]
greybus: interface: add ES2 init-status quirk flag

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>
8 years agogreybus: interface: read DME attributes at activation
Johan Hovold [Tue, 29 Mar 2016 22:56:08 +0000 (18:56 -0400)]
greybus: interface: read DME attributes at activation

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>
8 years agogreybus: greybus_protocols: rename NULL DME selector index
Johan Hovold [Tue, 29 Mar 2016 22:56:07 +0000 (18:56 -0400)]
greybus: greybus_protocols: rename NULL DME selector index

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>
8 years agogreybus: interface: clean up device-id handling
Johan Hovold [Tue, 29 Mar 2016 22:56:06 +0000 (18:56 -0400)]
greybus: interface: clean up device-id handling

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>
8 years agogreybus: interface: deactivate interface on enumeration failure
Johan Hovold [Tue, 29 Mar 2016 22:56:05 +0000 (18:56 -0400)]
greybus: interface: deactivate interface on enumeration failure

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>
8 years agogreybus: interface: move route creation to interface activation
Johan Hovold [Tue, 29 Mar 2016 22:56:04 +0000 (18:56 -0400)]
greybus: interface: move route creation to interface activation

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>
8 years agogreybus: interface: clean up ES3-bootroom-quirk handling
Johan Hovold [Tue, 29 Mar 2016 22:56:03 +0000 (18:56 -0400)]
greybus: interface: clean up ES3-bootroom-quirk handling

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>
8 years agogreybus: interface: clean up and rename init-status helper
Johan Hovold [Tue, 29 Mar 2016 22:56:02 +0000 (18:56 -0400)]
greybus: interface: clean up and rename init-status helper

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>
8 years agogreybus: interface: fix es2 boot-status mask
Johan Hovold [Tue, 29 Mar 2016 22:56:01 +0000 (18:56 -0400)]
greybus: interface: fix es2 boot-status mask

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>
8 years agogreybus: interface: move boot-status clearing to interface enable
Johan Hovold [Tue, 29 Mar 2016 22:56:00 +0000 (18:56 -0400)]
greybus: interface: move boot-status clearing to interface enable

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>
8 years agogreybus: svc: indent CPort flag defines properly
Johan Hovold [Tue, 29 Mar 2016 22:55:59 +0000 (18:55 -0400)]
greybus: svc: indent CPort flag defines properly

Use tabs to indent CPort-flag values.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
8 years agogreybus: greybus_protocols: remove bogus comment about svc bundle
Johan Hovold [Tue, 29 Mar 2016 22:55:58 +0000 (18:55 -0400)]
greybus: greybus_protocols: remove bogus comment about svc bundle

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>
8 years agogreybus: svc: remove bogus interface-reset helper
Johan Hovold [Tue, 29 Mar 2016 22:55:57 +0000 (18:55 -0400)]
greybus: svc: remove bogus interface-reset helper

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>
8 years agogreybus: greybus_protocols: align DME-attribute values
Johan Hovold [Tue, 29 Mar 2016 22:55:56 +0000 (18:55 -0400)]
greybus: greybus_protocols: align DME-attribute values

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>
8 years agogreybus: core: fix two container-of macros
Johan Hovold [Wed, 30 Mar 2016 20:53:17 +0000 (16:53 -0400)]
greybus: core: fix two container-of macros

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>
8 years agogreybus: audio: fix to resolve multiple audio module playback issue
Vaibhav Agarwal [Tue, 29 Mar 2016 18:01:43 +0000 (23:31 +0530)]
greybus: audio: fix to resolve multiple audio module playback issue

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>
8 years agogreybus: audio: Add module specific driver
Vaibhav Agarwal [Tue, 29 Mar 2016 18:01:42 +0000 (23:31 +0530)]
greybus: audio: Add module specific driver

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>
8 years agogreybus: audio: Use single codec driver registration
Vaibhav Agarwal [Tue, 29 Mar 2016 18:01:41 +0000 (23:31 +0530)]
greybus: audio: Use single codec driver registration

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>
8 years agogreybus: convert drivers to use connection->private set/get
Greg Kroah-Hartman [Tue, 22 Mar 2016 18:30:35 +0000 (14:30 -0400)]
greybus: convert drivers to use connection->private set/get

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>
8 years agogreybus: connection: add functions to get/set private data
Greg Kroah-Hartman [Tue, 22 Mar 2016 18:30:16 +0000 (14:30 -0400)]
greybus: connection: add functions to get/set private data

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>
8 years agogreybus: greybus_trace: Fix broken greybus ftrace
David Lin [Sat, 19 Mar 2016 01:30:50 +0000 (18:30 -0700)]
greybus: greybus_trace: Fix broken greybus ftrace

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>
8 years agogreybus: audio: Use CSD instead of E2EFC for audio data connections
Mark Greer [Thu, 17 Mar 2016 17:32:37 +0000 (10:32 -0700)]
greybus: audio: Use CSD instead of E2EFC for audio data connections

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>