On Mon, Aug 21, 2017 at 04:18:58PM -0700, Stephen Boyd wrote:

On 08/18/2017 08:28 AM, Kiran Gunda wrote:

quoted

The peripheral ownership check is not necessary on single master
platforms. Hence, enforce the peripheral ownership check optionally.

Signed-off-by: Kiran Gunda <redacted>
Tested-by: Shawn Guo <shawnguo@kernel.org>
---

This sounds like a band-aid. Isn't the gpio driver going to keep probing
all the pins that are not supposed to be accessed due to security
constraints? What exactly is failing in the gpio case?

Also, I thought we were getting rid of the ownership checks? Or at
least, putting them behind some debug kernel feature check or something?

I'm wondering that too.  Since we have the following patch to remove the
check on read/write access anyway, why are we adding the check in .xlate
hook?

spmi: pmic-arb: remove the read/write access checks

Shawn