[PATCH 4/5] fbdev/platinumfb: Use FB blanking constants

[Thomas Zimmermann]

Fbdev and its drivers use FB_BLANK constants for controlling the
display's blanking state. Semantics differ to similar VESA blanking
constants.

Replace the VESA constants with FB_BLANK in platinumfb. The VESA
constants can be interpreted bitwise, while the FB_BLANK constants
can not. Therefore turn the bit tests in an if-else sequence that
handles the individual cases. By default, the display is unblanked.

The modified code is within a comment block, so it will not run. I
still changed it to keep the driver up to standard. This might also
resolve the nearby TODO comment on incorrect hardware blanking.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
 drivers/video/fbdev/platinumfb.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/video/fbdev/platinumfb.c b/drivers/video/fbdev/platinumfb.c
index 81fdaa3541db..b55a7b70d31d 100644
--- a/drivers/video/fbdev/platinumfb.c
+++ b/drivers/video/fbdev/platinumfb.c
@@ -167,10 +167,12 @@ static int platinumfb_blank(int blank,  struct fb_info *fb)
 	ctrl = le32_to_cpup(&info->platinum_regs->ctrl.r) | 0x33;
 	if (blank)
 		--blank_mode;
-	if (blank & VESA_VSYNC_SUSPEND)
-		ctrl &= ~3;
-	if (blank & VESA_HSYNC_SUSPEND)
+	if (blank == FB_BLANK_VSYNC_SUSPEND)
+		ctrl &= ~0x03;
+	else if (blank == FB_BLANK_HSYNC_SUSPEND)
 		ctrl &= ~0x30;
+	else if (blank == FB_BLANK_POWERDOWN)
+		ctrl &= ~0x33;
 	out_le32(&info->platinum_regs->ctrl.r, ctrl);
 */
 /* TODO: Figure out how the heck to powerdown this thing! */
-- 
2.55.0