Re: [PATCH 4/4] pinctrl: amd: Use amd_pinconf_set() for all config options

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On 7/3/23 16:35, andy.shevchenko@xxxxxxxxx wrote:
Fri, Jun 30, 2023 at 02:47:16PM -0500, Mario Limonciello kirjoitti:
On ASUS TUF A16 it is reported that the ITE5570 ACPI device connected to
GPIO 7 is causing an interrupt storm.  This issue doesn't happen on
Windows.

Comparing the GPIO register configuration between Windows and Linux
bit 20 has been configured as a pull up on Windows, but not on Linux.
Checking GPIO declaration from the firmware it is clear it *should* have
been a pull up on Linux as well.

```
                     GpioInt (Level, ActiveLow, Exclusive, PullUp, 0x0000,
                         "\\_SB.GPIO", 0x00, ResourceConsumer, ,
                         )
                         {   // Pin list
                             0x0007
                         }

I beleive we do not need so many heading spaces in the above


OK, will fix it up.

```

On Linux amd_gpio_set_config() is currently only used for programming
the debounce. Actually the GPIO core calls it with all the arguments
that are supported by a GPIO, pinctrl-amd just responds `-ENOTSUPP`.

To solve this issue expand amd_gpio_set_config() to support the other
arguments amd_pinconf_set() supports, namely `PIN_CONFIG_BIAS_PULL_DOWN`,
`PIN_CONFIG_BIAS_PULL_UP`, and `PIN_CONFIG_DRIVE_STRENGTH`.

...

Fixes: 2956b5d94a76b ("pinctrl / gpio: Introduce .set_config() callback for GPIO chips")

Can you group fixes at the beginning of the series?


I'm a bit wary of this because the other commits fix it so that debounce handling works properly before this is wired up. If I put this patch earlier I'll need to make sure it's only used for the new options and not debounce.

But I'll think about how to do it.



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