linux.git/drivers/opp, branch v5.8-rc2

treewide: replace '---help---' in Kconfig files with 'help'

2020-06-13T16:57:21+00:00

Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over
'---help---'"), the number of '---help---' has been gradually
decreasing, but there are still more than 2400 instances.

This commit finishes the conversion. While I touched the lines,
I also fixed the indentation.

There are a variety of indentation styles found.

  a) 4 spaces + '---help---'
  b) 7 spaces + '---help---'
  c) 8 spaces + '---help---'
  d) 1 space + 1 tab + '---help---'
  e) 1 tab + '---help---'    (correct indentation)
  f) 1 tab + 1 space + '---help---'
  g) 1 tab + 2 spaces + '---help---'

In order to convert all of them to 1 tab + 'help', I ran the
following commend:

  $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/'

Signed-off-by: Masahiro Yamada

opp: Don't parse icc paths unnecessarily

2020-06-01T07:40:15+00:00

The DT node of the device may contain interconnect paths while the OPP
table doesn't have the bandwidth values. There is no need to parse the
paths in such cases.

Signed-off-by: Sibi Sankar 
Tested-by: Sibi Sankar 
Reviewed-by: Sibi Sankar 
[ Viresh: Support the case of !opp_table and massaged changelog ]
Signed-off-by: Viresh Kumar

opp: Remove bandwidth votes when target_freq is zero

2020-05-29T04:45:12+00:00

We already drop several votes when target_freq is set to zero, drop
bandwidth votes as well.

Reported-by: Sibi Sankar 
Reviewed-by: Georgi Djakov 
Tested-by: Georgi Djakov 
Reviewed-by: Sibi Sankar 
Tested-by: Sibi Sankar 
Signed-off-by: Viresh Kumar

opp: core: add regulators enable and disable

2020-05-29T04:45:12+00:00

Add enable regulators to dev_pm_opp_set_regulators() and disable
regulators to dev_pm_opp_put_regulators(). Even if bootloader
leaves regulators enabled, they should be enabled in kernel in
order to increase the reference count.

Tested-by: Marek Szyprowski 
Acked-by: Clément Péron 
Tested-by: Clément Péron 
Signed-off-by: Kamil Konieczny 
[ Viresh: Enable the regulator only after it is programmed and add a
	  flag to track its status. ]
Signed-off-by: Viresh Kumar

opp: Reorder the code for !target_freq case

2020-05-29T04:45:12+00:00

Reorder the code a bit to make it more readable. Add additional comment
as well.

Tested-by: Marek Szyprowski 
Acked-by: Clément Péron 
Tested-by: Clément Péron 
Signed-off-by: Viresh Kumar

opp: Expose bandwidth information via debugfs

2020-05-29T04:45:12+00:00

Expose the bandwidth information as well via debugfs.

Signed-off-by: Viresh Kumar 
Signed-off-by: Georgi Djakov

opp: Update the bandwidth on OPP frequency changes

2020-05-29T04:45:10+00:00

If the OPP bandwidth values are populated, we want to switch also the
interconnect bandwidth in addition to frequency and voltage.

Signed-off-by: Georgi Djakov 
Reviewed-by: Matthias Kaehlcke 
Reviewed-by: Sibi Sankar 
Signed-off-by: Viresh Kumar

opp: Add sanity checks in _read_opp_key()

2020-05-29T04:45:08+00:00

When we read the OPP keys, it would be nice to do some sanity checks
of the values we get from DT and see if they match with the information
that is populated in the OPP table. Let's pass a pointer of the table,
so that we can do some validation.

Signed-off-by: Georgi Djakov 
Reviewed-by: Matthias Kaehlcke 
Reviewed-by: Sibi Sankar 
[ Viresh: Fix rebase conflicts ]
Signed-off-by: Viresh Kumar

opp: Add support for parsing interconnect bandwidth

2020-05-29T04:45:08+00:00

The OPP bindings now support bandwidth values, so add support to parse it
from device tree and store it into the new dev_pm_opp_icc_bw struct, which
is part of the dev_pm_opp.

Signed-off-by: Georgi Djakov 
Reviewed-by: Matthias Kaehlcke 
[ Viresh: Create _read_bw() and use it, renamed _of_find_icc_paths() to
	  dev_pm_opp_of_find_icc_paths(), exported it and made opp_table
	  argument optional. Also drop the depends on from Kconfig. ]
Signed-off-by: Viresh Kumar

OPP: Add helpers for reading the binding properties

2020-05-13T06:18:13+00:00

The opp-hz DT property is not mandatory and we may use another property
as a key in the OPP table. Add helper functions to simplify the reading
and comparing the keys.

Signed-off-by: Saravana Kannan 
Signed-off-by: Georgi Djakov 
Reviewed-by: Matthias Kaehlcke 
Reviewed-by: Sibi Sankar 
[ Viresh: Removed an unnecessary comment ]
Signed-off-by: Viresh Kumar