Re: [PATCH 28/32] sony-laptop: Port to new backlight interface selection API

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On Wed, Jun 10, 2015 at 03:01:28PM +0200, Hans de Goede wrote:
> Port the backlight selection logic to the new backlight interface
> selection API.
> 
> This commit also removes various obsolete pr_xxx messages related to
> backlight interface selection. These are obsolete because they assume
> there is only a vendor or acpi backlight driver and no other choice.
> Also they are not necessary, if the user wants to know which backlight
> interfaces are registered a simple "ls /sys/class/backlight" suffices.
> 
> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>

Acked-by: Mattia Dongili <malattia@xxxxxxxx>

> ---
>  drivers/platform/x86/sony-laptop.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
> index e51c1e7..6207be6 100644
> --- a/drivers/platform/x86/sony-laptop.c
> +++ b/drivers/platform/x86/sony-laptop.c
> @@ -69,6 +69,7 @@
>  #include <linux/miscdevice.h>
>  #endif
>  #include <asm/uaccess.h>
> +#include <acpi/video.h>
>  
>  #define dprintk(fmt, ...)			\
>  do {						\
> @@ -3199,11 +3200,8 @@ static int sony_nc_add(struct acpi_device *device)
>  	}
>  
>  	/* setup input devices and helper fifo */
> -	if (acpi_video_backlight_support()) {

The comment above is really misplaced. I wouldn'd mind if you got rid of
that too.

> -		pr_info("brightness ignored, must be controlled by ACPI video driver\n");
> -	} else {
> +	if (acpi_video_get_backlight_type() == acpi_backlight_vendor)
>  		sony_nc_backlight_setup();
> -	}
>  
>  	/* create sony_pf sysfs attributes related to the SNC device */
>  	for (item = sony_nc_values; item->name; ++item) {
> -- 
> 2.4.2
> 
-- 
mattia
:wq!
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