On Fri 23 Feb 06:22 PST 2018, Linus Walleij wrote:

On Tue, Feb 20, 2018 at 5:45 PM, Timur Tabi [off-list ref] wrote:

quoted

On 01/25/2018 07:13 PM, Stephen Boyd wrote:

quoted

This patchset proposes a solution to describing the valid
pins for a pin controller in a semi-generic way so that qcom
platforms can expose the pins that are really available.

Typically, this has been done by having drivers and firmware
descriptions only use pins they know they have access to, and that
still works now because we no longer read the pin direction at
boot. But there are still some userspace drivers and debugfs facilities
that don't know what pins are available and attempt to read everything
they can. On qcom platforms, this may lead to a system hang, which isn't
very nice behavior, even if root is the only user that can trigger it.

Any progress on this patch set?  Stephen no longer works for Qualcomm, so I
don't know what the next step is, and I really want this feature in 4.17
(we've missed so many merge windows already).

I depend on Bjorn as maintainer of the pin control driver to ACK
the solution he likes.

I haven't found the time to review the reuse of the irq valid mask or
the effort needed to replace this, other than that I think the series
looks good.

Regards,
Bjorn