backlight: ipaq_micro: Use backlight helper

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>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230106164856.1453819-4-steve@sk2.org

diff --git a/drivers/video/backlight/ipaq_micro_bl.c b/drivers/video/backlight/ipaq_micro_bl.c
index 85b16cc828789efea742a0e74ee6a9768722590b..f595b8c8cbb2419ba65d5692340ab91e316c2887 100644 (file)
--- a/drivers/video/backlight/ipaq_micro_bl.c
+++ b/drivers/video/backlight/ipaq_micro_bl.c
@@ -16,17 +16,12 @@
 static int micro_bl_update_status(struct backlight_device *bd)
 {
        struct ipaq_micro *micro = dev_get_drvdata(&bd->dev);
-       int intensity = bd->props.brightness;
+       int intensity = backlight_get_brightness(bd);
        struct ipaq_micro_msg msg = {
                .id = MSG_BACKLIGHT,
                .tx_len = 3,
        };
 
-       if (bd->props.power != FB_BLANK_UNBLANK)
-               intensity = 0;
-       if (bd->props.state & (BL_CORE_FBBLANK | BL_CORE_SUSPENDED))
-               intensity = 0;
-
        /*
         * Message format:
         * Byte 0: backlight instance (usually 1)