auxdisplay: ht16k33: Replace use of fb_blank with backlight helper

Replace the use of struct backlight_properties.fb_blank with a call
to backlight_get_brightness(). The helper implements similar logic
as the driver's function. It also accounts for BL_CORE_SUSPENDED for
drivers that set BL_CORE_SUSPENDRESUME. Ht16k33 doesn't use this, so
there's no change in behaviour here.

Signed-off-by: Thomas Zimmermann <[email protected]>
Cc: Robin van der Gracht <[email protected]>
Cc: Miguel Ojeda <[email protected]>
Reviewed-by: Sam Ravnborg <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Reviewed-by: Miguel Ojeda <[email protected]>
Reviewed-by: Robin van der Gracht <[email protected]>
Reviewed-by: Dan Carpenter <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

0 files changed, 0 insertions, 0 deletions