S3C_FB_VSYNC_IRQ_EN  921 drivers/video/fbdev/s3c-fb.c 	if (!test_and_set_bit(S3C_FB_VSYNC_IRQ_EN, &sfb->irq_flags)) {
S3C_FB_VSYNC_IRQ_EN  946 drivers/video/fbdev/s3c-fb.c 	if (test_and_clear_bit(S3C_FB_VSYNC_IRQ_EN, &sfb->irq_flags)) {