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Subject[PATCH 4/4] platform/x86: thinkpad_acpi: Use backlight helper
Date
Instead of retrieving the backlight brightness in struct
backlight_properties manually, and then checking whether the backlight
should be on at all, use backlight_get_brightness() which does all
this and insulates this from future changes.

Signed-off-by: Stephen Kitt <steve@sk2.org>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Mark Gross <markgross@kernel.org>
Cc: ibm-acpi-devel@lists.sourceforge.net
Cc: platform-driver-x86@vger.kernel.org
---
drivers/platform/x86/thinkpad_acpi.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index e6cb4a14cdd4..a9337bd1d125 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -6796,10 +6796,7 @@ static int brightness_set(unsigned int value)

static int brightness_update_status(struct backlight_device *bd)
{
- unsigned int level =
- (bd->props.fb_blank == FB_BLANK_UNBLANK &&
- bd->props.power == FB_BLANK_UNBLANK) ?
- bd->props.brightness : 0;
+ int level = backlight_get_brightness(bd);

dbg_printk(TPACPI_DBG_BRGHT,
"backlight: attempt to set level to %d\n",
--
2.30.2
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