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sony-laptop: Port to new backlight interface selection API 

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@redhat.com>
Acked-by: Mattia Dongili <malattia@linux.it>
Acked-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Hans de Goede 2015-06-16 16:28:09 +02:00 committed by Rafael J. Wysocki
parent 6c072299b6
commit 56d5c34a94
1 changed files with 2 additions and 5 deletions
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7
drivers/platform/x86/sony-laptop.c
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@ -69,6 +69,7 @@
#include <linux/miscdevice.h> #include <linux/miscdevice.h>
#endif #endif
#include <asm/uaccess.h> #include <asm/uaccess.h>
#include <acpi/video.h>
#define dprintk(fmt, ...) \ #define dprintk(fmt, ...) \
do { \ do { \
@ -3198,12 +3199,8 @@ static int sony_nc_add(struct acpi_device *device)
sony_nc_function_setup(device, sony_pf_device); sony_nc_function_setup(device, sony_pf_device);
} }
/* setup input devices and helper fifo */ if (acpi_video_get_backlight_type() == acpi_backlight_vendor)
if (acpi_video_backlight_support()) {
pr_info("brightness ignored, must be controlled by ACPI video driver\n");
} else {
sony_nc_backlight_setup(); sony_nc_backlight_setup();
}
/* create sony_pf sysfs attributes related to the SNC device */ /* create sony_pf sysfs attributes related to the SNC device */
for (item = sony_nc_values; item->name; ++item) { for (item = sony_nc_values; item->name; ++item) {