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| author | Michał Kępień <kernel@kempniu.pl> | 2018-02-20 06:24:53 +0100 |
|---|---|---|
| committer | Darren Hart (VMware) <dvhart@infradead.org> | 2018-02-24 13:37:36 -0800 |
| commit | 2f60efa1e48884b8d83f1ea94433b871814543ee (patch) | |
| tree | 0f7f72aeb7e66667d62db0bcc0f531421746d687 /drivers/platform | |
| parent | 7e6f97959abedcf75d1f11989eca43a3ddc4965d (diff) | |
| download | linux-2f60efa1e48884b8d83f1ea94433b871814543ee.tar.gz linux-2f60efa1e48884b8d83f1ea94433b871814543ee.tar.bz2 linux-2f60efa1e48884b8d83f1ea94433b871814543ee.zip | |
platform/x86: fujitsu-laptop: Define constants for backlight power control
Use named constants instead of integers in call_fext_func() invocations
related to backlight power control in order to more clearly convey the
intent of each call.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/x86/fujitsu-laptop.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index 17779b8b7f30..6b0484cbdcf2 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -101,6 +101,11 @@ #define ECO_LED 0x10000 #define ECO_LED_ON 0x80000 +/* FUNC interface - backlight power control */ +#define BACKLIGHT_PARAM_POWER 0x4 +#define BACKLIGHT_OFF 0x3 +#define BACKLIGHT_ON 0x0 + /* Hotkey details */ #define KEY1_CODE 0x410 /* codes for the keys in the GIRB register */ #define KEY2_CODE 0x411 @@ -257,9 +262,11 @@ static int bl_update_status(struct backlight_device *b) if (fext) { if (b->props.power == FB_BLANK_POWERDOWN) - call_fext_func(fext, FUNC_BACKLIGHT, 0x1, 0x4, 0x3); + call_fext_func(fext, FUNC_BACKLIGHT, 0x1, + BACKLIGHT_PARAM_POWER, BACKLIGHT_OFF); else - call_fext_func(fext, FUNC_BACKLIGHT, 0x1, 0x4, 0x0); + call_fext_func(fext, FUNC_BACKLIGHT, 0x1, + BACKLIGHT_PARAM_POWER, BACKLIGHT_ON); } return set_lcd_level(device, b->props.brightness); @@ -818,7 +825,8 @@ static int acpi_fujitsu_laptop_add(struct acpi_device *device) /* Sync backlight power status */ if (fujitsu_bl && fujitsu_bl->bl_device && acpi_video_get_backlight_type() == acpi_backlight_vendor) { - if (call_fext_func(fext, FUNC_BACKLIGHT, 0x2, 0x4, 0x0) == 3) + if (call_fext_func(fext, FUNC_BACKLIGHT, 0x2, + BACKLIGHT_PARAM_POWER, 0x0) == BACKLIGHT_OFF) fujitsu_bl->bl_device->props.power = FB_BLANK_POWERDOWN; else fujitsu_bl->bl_device->props.power = FB_BLANK_UNBLANK; |