[PATCH v1 1/1] platform/surface: surface3_power: Use i2c_acpi_get_i2c_resource() helper

[PATCH v1 1/1] platform/surface: surface3_power: Use i2c_acpi_get_i2c_resource() helper

[Andy Shevchenko]

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@linux.intel.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;
 	}
-- 
2.30.2

Re: [PATCH v1 1/1] platform/surface: surface3_power: Use i2c_acpi_get_i2c_resource() helper

[Maximilian Luz]

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@linux.intel.com>

Looks good to me, thanks!

Reviewed-by: Maximilian Luz <luzmaximilian@gmail.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;
>   	}
> 

Re: [PATCH v1 1/1] platform/surface: surface3_power: Use i2c_acpi_get_i2c_resource() helper

[Hans de Goede]

Hi,

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@linux.intel.com>

Thank you for your patch, I've applied this patch to my review-hans 
branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

Note it will show up in my review-hans branch once I've pushed my
local branch there, which might take a while.

Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.

Regards,

Hans


> ---
>  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;
>  	}
>