Thread (10 messages) 10 messages, 5 authors, 2018-03-27

[PATCH v4 1/5] dt-bindings: gpio: Add a gpio-reserved-ranges property

From: robh@kernel.org (Rob Herring)
Date: 2018-03-26 22:26:22
Also in: linux-arm-msm, linux-devicetree, linux-gpio, lkml

On Fri, Mar 23, 2018 at 09:34:49AM -0700, Stephen Boyd wrote:
From: Stephen Boyd <redacted>

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 <redacted>
Cc: <redacted>
Signed-off-by: Stephen Boyd <redacted>
Signed-off-by: Stephen Boyd <redacted>
---
 Documentation/devicetree/bindings/gpio/gpio.txt | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
Reviewed-by: Rob Herring <robh@kernel.org>
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