diff options
| author | Stephen Boyd <sboyd@codeaurora.org> | 2018-03-23 09:34:52 -0700 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2018-03-27 15:34:20 +0200 |
| commit | 726cb3ba49692bdae6caff457755e7cdb432efa4 (patch) | |
| tree | 66bf4de79b830df2556fa8854dcba1d414ebd9a4 /tools/perf/scripts/python | |
| parent | ace56935ff48879239d79129c7882ea2ff1b4804 (diff) | |
gpiolib: Support 'gpio-reserved-ranges' property
Some qcom platforms make some GPIOs or pins unavailable for use by
non-secure operating systems, and thus reading or writing the registers
for those pins will cause access control issues. Add support for a DT
property to describe the set of GPIOs that are available for use so that
higher level OSes are able to know what pins to avoid reading/writing.
Non-DT platforms can add support by directly updating the
chip->valid_mask.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Timur Tabi <timur@codeaurora.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions