linux-kernel - Re: [PATCH v1 1/1] platform/surface: surface3_power: Use i2c_acpi_get_i2c

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Date:   Tue, 3 Aug 2021 19:22:08 +0200
From:   Maximilian Luz <luzmaximilian@...il.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <mgross@...ux.intel.com>
Subject: Re: [PATCH v1 1/1] platform/surface: surface3_power: Use
 i2c_acpi_get_i2c_resource() helper

On 8/3/21 6:32 PM, Andy Shevchenko wrote:
> ACPI provides a generic helper to get I²C Serial Bus resources.
> Use it instead of open coded variant.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

Looks good to me, thanks!

Reviewed-by: Maximilian Luz <luzmaximilian@...il.com>

> ---
>   drivers/platform/surface/surface3_power.c | 8 +-------
>   1 file changed, 1 insertion(+), 7 deletions(-)
> 
> diff --git a/drivers/platform/surface/surface3_power.c b/drivers/platform/surface/surface3_power.c
> index dea82aa1abd4..90c1568ea4e0 100644
> --- a/drivers/platform/surface/surface3_power.c
> +++ b/drivers/platform/surface/surface3_power.c
> @@ -384,13 +384,7 @@ mshw0011_space_handler(u32 function, acpi_physical_address command,
>   	if (ACPI_FAILURE(ret))
>   		return ret;
>   
> -	if (!value64 || ares->type != ACPI_RESOURCE_TYPE_SERIAL_BUS) {
> -		ret = AE_BAD_PARAMETER;
> -		goto err;
> -	}
> -
> -	sb = &ares->data.i2c_serial_bus;
> -	if (sb->type != ACPI_RESOURCE_SERIAL_TYPE_I2C) {
> +	if (!value64 || !i2c_acpi_get_i2c_resource(ares, &sb)) {
>   		ret = AE_BAD_PARAMETER;
>   		goto err;
>   	}
>