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[v2,0/3] ARM: imx: only enable pinctrl as needed

Message ID 20240506-imx-pinctrl-optional-v2-0-bdff75085156@geanix.com (mailing list archive)
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Series ARM: imx: only enable pinctrl as needed | expand

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Esben Haabendal May 6, 2024, 10:23 a.m. UTC
As not all mach-imx platforms has support for run-time changes of pin
configurations (such as LS1021A), a more selective approach to enabling
pinctrl infrastructure makes sense, so that an e.g. an LS1021A only kernel
could be built without pinctrl support.

This is a very late follow up v1 3 years ago [1]. The situation seems to be
unchanged since then, and I have tried to incorporate the requested
changes.

[1] https://lore.kernel.org/linux-arm-kernel/be1c35eb997959b4939b304ef26664dfb9cd2275.1621941451.git.esben@geanix.com/

Changes since v1:
- Changed all the pinctrl drivers to be user-configurable, allowing disable
  even for systems with pinctrl.
- Added fixup of overly generic dependency for i.MX RT pinctrl drivers.
- Allow compile-testing of i.MX pinctrl drivers using CONFIG_COMPILE_TEST.

Signed-off-by: Esben Haabendal <esben@geanix.com>
---
Esben Haabendal (3):
      ARM: imx: Allow user to disable pinctrl
      pinctrl: freescale: Use CONFIG_SOC_IMXRT to guard i.MX RT1xxx drivers
      pinctrl: freescale: enable use with COMPILE_TEST

 arch/arm/mach-imx/Kconfig         | 16 -------
 drivers/pinctrl/freescale/Kconfig | 89 +++++++++++++++++++++++++++------------
 2 files changed, 63 insertions(+), 42 deletions(-)
---
base-commit: dd5a440a31fae6e459c0d6271dddd62825505361
change-id: 20240506-imx-pinctrl-optional-63acd3db88dc

Best regards,

Comments

Linus Walleij May 27, 2024, 11:05 a.m. UTC | #1
On Mon, May 6, 2024 at 12:24 PM Esben Haabendal <esben@geanix.com> wrote:

> As not all mach-imx platforms has support for run-time changes of pin
> configurations (such as LS1021A), a more selective approach to enabling
> pinctrl infrastructure makes sense, so that an e.g. an LS1021A only kernel
> could be built without pinctrl support.
>
> This is a very late follow up v1 3 years ago [1]. The situation seems to be
> unchanged since then, and I have tried to incorporate the requested
> changes.

What is the verdict from the i.MX pin control maintainers on this?

I can merge this into the pin control tree for v6.11 but it'd be nice
to get an ACK from the maintainers first.

Yours,
Linus Walleij
Linus Walleij Oct. 1, 2024, 11:55 a.m. UTC | #2
On Mon, May 27, 2024 at 1:05 PM Linus Walleij <linus.walleij@linaro.org> wrote:
> On Mon, May 6, 2024 at 12:24 PM Esben Haabendal <esben@geanix.com> wrote:
>
> > As not all mach-imx platforms has support for run-time changes of pin
> > configurations (such as LS1021A), a more selective approach to enabling
> > pinctrl infrastructure makes sense, so that an e.g. an LS1021A only kernel
> > could be built without pinctrl support.
> >
> > This is a very late follow up v1 3 years ago [1]. The situation seems to be
> > unchanged since then, and I have tried to incorporate the requested
> > changes.
>
> What is the verdict from the i.MX pin control maintainers on this?
>
> I can merge this into the pin control tree for v6.11 but it'd be nice
> to get an ACK from the maintainers first.

I ran out of patience and Shawn ACKed patch 1/3 so patches
applied.

Yours,
Linus Walleij