linux/drivers/opp, branch v5.8

opp: Increase parsed_static_opps in _of_add_opp_table_v1()

2020-07-16T03:20:54Z

Currently, when using _of_add_opp_table_v2 parsed_static_opps is increased and this value is used in _opp_remove_all_static() to check if there are static opp entries that need to be freed. Unfortunately this does not happen when using _of_add_opp_table_v1(), which leads to warnings. This patch increases parsed_static_opps in _of_add_opp_table_v1() in a similar way as in _of_add_opp_table_v2(). Fixes: 03758d60265c ("opp: Replace list_kref with a local counter") Cc: v5.6+ # v5.6+ Signed-off-by: Walter Lozano [ Viresh: Do the operation with lock held and set the value to 1 instead of incrementing it ] Signed-off-by: Viresh Kumar

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

2020-06-13T16:57:21Z

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

2020-06-01T07:40:15Z

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

2020-05-29T04:45:12Z

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

2020-05-29T04:45:12Z

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

2020-05-29T04:45:12Z

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

2020-05-29T04:45:12Z

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

2020-05-29T04:45:10Z

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()

2020-05-29T04:45:08Z

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

2020-05-29T04:45:08Z

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