lkml.org 
[lkml]   [2018]   [Mar]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v4 1/5] dt-bindings: gpio: Add a gpio-reserved-ranges property
On Fri, Mar 23, 2018 at 09:34:49AM -0700, Stephen Boyd wrote:
> From: Stephen Boyd <sboyd@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.likely@secretlab.ca>
> Cc: <devicetree@vger.kernel.org>
> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
> Signed-off-by: Stephen Boyd <swboyd@chromium.org>
> ---
> Documentation/devicetree/bindings/gpio/gpio.txt | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)

Reviewed-by: Rob Herring <robh@kernel.org>

\
 
 \ /
  Last update: 2018-03-27 00:27    [W:0.091 / U:1.300 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site