[PATCH] staging/fbtft: Fix backlight

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Commit b4a1ed0cd18b ("fbdev: make FB_BACKLIGHT a tristate") forgot to
update fbtft breaking its backlight support when FB_BACKLIGHT is a module.

Fix this by using IS_ENABLED().

Fixes: b4a1ed0cd18b ("fbdev: make FB_BACKLIGHT a tristate")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Noralf Trønnes <noralf@xxxxxxxxxxx>
---
 drivers/staging/fbtft/fbtft-core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c
index ed992ca605eb..ff979f1eeee8 100644
--- a/drivers/staging/fbtft/fbtft-core.c
+++ b/drivers/staging/fbtft/fbtft-core.c
@@ -128,7 +128,7 @@ static int fbtft_request_gpios(struct fbtft_par *par)
 	return 0;
 }
 
-#ifdef CONFIG_FB_BACKLIGHT
+#if IS_ENABLED(CONFIG_FB_BACKLIGHT)
 static int fbtft_backlight_update_status(struct backlight_device *bd)
 {
 	struct fbtft_par *par = bl_get_data(bd);
@@ -853,7 +853,7 @@ int fbtft_register_framebuffer(struct fb_info *fb_info)
 		 fb_info->fix.smem_len >> 10, text1,
 		 HZ / fb_info->fbdefio->delay, text2);
 
-#ifdef CONFIG_FB_BACKLIGHT
+#if IS_ENABLED(CONFIG_FB_BACKLIGHT)
 	/* Turn on backlight if available */
 	if (fb_info->bl_dev) {
 		fb_info->bl_dev->props.power = FB_BLANK_UNBLANK;
-- 
2.33.0





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