Re: [PATCH 2/2] platform/x86: int3472: discrete: Log a warning if the pin-numbers don't match

["Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>]

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On Tue, 13 Jun 2023, Hans de Goede wrote:

> The INT3472 discrete code assumes that the ACPI GPIO resources are
> in the same order as the pin-info _DSM entries.
> 
> The returned pin-info includes the pin-number in bits 15-8. Add a check
> that this matches with the ACPI GPIO resource pin-number in case
> the assumption is not true with some ACPI tables.
> 
> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
> ---
>  drivers/platform/x86/intel/int3472/discrete.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c
> index a31964076883..850f306214c7 100644
> --- a/drivers/platform/x86/intel/int3472/discrete.c
> +++ b/drivers/platform/x86/intel/int3472/discrete.c
> @@ -154,8 +154,8 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares,
>  {
>  	struct int3472_discrete_device *int3472 = data;
>  	struct acpi_resource_gpio *agpio;
> +	u8 active_value, pin, type;
>  	union acpi_object *obj;
> -	u8 active_value, type;
>  	const char *err_msg;
>  	const char *func;
>  	u32 polarity;
> @@ -183,6 +183,12 @@ static int skl_int3472_handle_gpio_resources(struct acpi_resource *ares,
>  
>  	int3472_get_func_and_polarity(type, &func, &polarity);
>  
> +	pin = FIELD_GET(INT3472_GPIO_DSM_PIN, obj->integer.value);
> +	if (pin != agpio->pin_table[0])
> +		dev_warn(int3472->dev, "%s %s pin number mismatch _DSM %d resource %d\n",
> +			 func, agpio->resource_source.string_ptr, pin,
> +			 agpio->pin_table[0]);
> +
>  	active_value = FIELD_GET(INT3472_GPIO_DSM_SENSOR_ON_VAL, obj->integer.value);
>  	if (!active_value)
>  		polarity ^= GPIO_ACTIVE_LOW;

For both 1 and 2,

Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>


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