linux-stable.git/drivers/soundwire, branch v5.5

Merge 5.4-rc7 into char-misc-next

2019-11-11T05:24:30+00:00

We need the char/misc driver fixes in here as well.

Signed-off-by: Greg Kroah-Hartman

soundwire: ignore uniqueID when irrelevant

2019-11-09T11:16:56+00:00

The uniqueID is useful when there are two or more devices of the same
type (identical manufacturer ID, part ID) on the same link.

When there is a single device of a given type on a link, its uniqueID
is irrelevant. It's not uncommon on actual platforms to see variations
of the uniqueID, or differences between devID registers and ACPI _ADR
fields.

This patch suggests a filter on startup to identify 'single' devices
and tag them accordingly. The uniqueID is then not used for the probe,
and the device name omits the uniqueID as well.

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20191022234808.17432-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: slave: add helper to extract slave ID

2019-11-09T11:16:56+00:00

Simplify the loop with a helper. The only functionality change is that
we continue the loop even with an ACPI error.

Follow-up patches will build on this change.

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20191022234808.17432-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: intel: fix PDI/stream mapping for Bulk

2019-11-09T11:14:44+00:00

The previous formula is incorrect for PDI0/1, the mapping is not
linear but has a discontinuity between PDI1 and PDI2.

This change has no effect on PCM PDIs (same mapping).

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20191022232948.17156-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: cadence_master: make clock stop exit configurable on init

2019-10-24T11:52:01+00:00

The use of clock stop is not a requirement, the IP can e.g. be
completely power gated and not detect any wakes while in s2idle/deep
sleep.

For now clock-stop is not supported anyways so the control parameter
is always false. This will be revisited when we add clock stop.

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20191022235448.17586-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: intel/cadence: add flag for interrupt enable

2019-10-24T11:52:01+00:00

Prepare for future PM support and fix error handling by disabling
interrupts as needed.

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20191022235448.17586-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: intel: add helper for initialization

2019-10-24T11:52:01+00:00

Move code to helper for reuse in power management routines

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20191022235448.17586-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: cadence_master: add hw_reset capability in debugfs

2019-10-24T11:52:01+00:00

Provide debugfs capability to kick link and devices into hard-reset
(as defined by MIPI). This capability is really useful when some
devices are no longer responsive and/or to check the software handling
of resynchronization.

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20191022235448.17586-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: intel/cadence: fix startup sequence

2019-10-24T11:52:01+00:00

Multiple changes squashed in single patch to avoid tick-tock effect
and avoid breaking compilation/bisect

1. Per the hardware documentation, all changes to MCP_CONFIG,
MCP_CONTROL, MCP_CMDCTRL and MCP_PHYCTRL need to be validated with a
self-clearing write to MCP_CONFIG_UPDATE. Add a helper and do the
update when the CONFIG is changed.

2. Move interrupt enable after interrupt handler registration

3. Add a new helper to start the hardware bus reset with maximum duration
to make sure the Slave(s) correctly detect the reset pattern and to
ensure electrical conflicts can be resolved.

4. flush command FIFOs

Better error handling will be provided after interrupt disable is
provided in follow-up patches.

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20191022235448.17586-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul

soundwire: slave: fix scanf format

2019-10-24T11:25:45+00:00

fix cppcheck warning:

[drivers/soundwire/slave.c:145]: (warning) %x in format string (no. 1)
requires 'unsigned int *' but the argument type is 'signed int *'.

Signed-off-by: Pierre-Louis Bossart 
Link: https://lore.kernel.org/r/20191022233147.17268-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul