On Fri, Mar 23, 2018 at 09:34:49AM -0700, Stephen Boyd wrote: > From: Stephen Boyd <sb...@codeaurora.org> > > 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. > Introduce 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. > > Cc: Grant Likely <grant.lik...@secretlab.ca> > Cc: <devicet...@vger.kernel.org> > Signed-off-by: Stephen Boyd <sb...@codeaurora.org> > Signed-off-by: Stephen Boyd <swb...@chromium.org> > --- > Documentation/devicetree/bindings/gpio/gpio.txt | 7 ++++--- > 1 file changed, 4 insertions(+), 3 deletions(-)
Reviewed-by: Rob Herring <r...@kernel.org>
