[PATCH 0/3] [v11] pinctrl: qcom: add support for sparse GPIOs

Linus Walleij linus.walleij at linaro.org
Thu Dec 21 04:11:13 PST 2017


Hi Timur,

thank you for your perseverance. I am sorry that I am sometimes not
fast to respond :(

On Wed, Dec 20, 2017 at 8:10 PM, Timur Tabi <timur at codeaurora.org> wrote:

> Patch 1 reverts an old patch that triggers a get_direction of every
> pin upon init, without attempting to request the pins first.  The
> direction is already being queried when the pin is requested.
>
> Patch 2 adds support to pinctrl-msm for "unavailable" GPIOs.

I have applied both of these to the pinctrl "devel" branch so we
can see if all is fine.

They have Stephen's ACK so I am happy with them, I am just
still slightly worried about possible regressions because of
patch 1.

> Patch 3 extends that support to pinctrl-qdf2xxx.  A recent ACPI change
> on QDF2400 platforms blocks access to most pins, so the driver can only
> register a subset.

I see this one is still under discussion.

If nothing drastic happens with patch 1/2 in linux-next
it should be fine if you just resend this single patch in subsequent
submissions.

I think it may be worthwhile to keep Andrew Cooks in the loop for
future submissions as he's trying to solve similar problems for
AMD.

Yours,
Linus Walleij



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