Messages in this thread | | | From | Linus Walleij <> | Date | Fri, 23 Feb 2018 15:22:42 +0100 | Subject | Re: [PATCH v2 0/3] Support qcom pinctrl protected pins |
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On Tue, Feb 20, 2018 at 5:45 PM, Timur Tabi <timur@codeaurora.org> wrote: > On 01/25/2018 07:13 PM, Stephen Boyd wrote: >> >> 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.
Yours, Linus Walleij
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