---

yaml
---
r: 271354
b: refs/heads/master
c: c4e5a02
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 7e47c211953bd8e396b168eba2c288ea6aec20ef
+refs/heads/master: c4e5a0232763db22d6c60c391ed5816b2b2ac063

trunk/arch/powerpc/platforms/512x/mpc512x_shared.c

@@ -253,7 +253,7 @@ void __init mpc512x_init_diu(void)
 	}
 
 	mode = in_be32(&diu_reg->diu_mode);
-	if (mode != MFB_MODE1) {
+	if (mode == MFB_MODE0) {
 		pr_info("%s: DIU OFF\n", __func__);
 		goto out;
 	}

trunk/drivers/video/fsl-diu-fb.c

@@ -52,7 +52,6 @@
 struct diu_hw {
 	struct diu __iomem *diu_reg;
 	spinlock_t reg_lock;
-	unsigned int mode;		/* DIU operation mode */
 };
 
 struct diu_addr {
@@ -426,7 +425,6 @@ static struct mfb_info mfb_template[] = {
 };
 
 static struct diu_hw dr = {
-	.mode = MFB_MODE1,
 	.reg_lock = __SPIN_LOCK_UNLOCKED(diu_hw.reg_lock),
 };
 
@@ -620,7 +618,7 @@ static void enable_lcdc(struct fb_info *info)
 	struct fsl_diu_data *machine_data = mfbi->parent;
 
 	if (!machine_data->fb_enabled) {
-		out_be32(&hw->diu_mode, dr.mode);
+		out_be32(&hw->diu_mode, MFB_MODE1);
 		machine_data->fb_enabled++;
 	}
 }
@@ -1390,9 +1388,6 @@ static int request_irq_local(int irq)
 		ints |=	INT_VSYNC;
 #endif
 
-		if (dr.mode == MFB_MODE2 || dr.mode == MFB_MODE3)
-			ints |= INT_VSYNC_WB;
-
 		/* Read to clear the status */
 		in_be32(&hw->int_status);
 		out_be32(&hw->int_mask, ints);
@@ -1558,7 +1553,7 @@ static int __devinit fsl_diu_probe(struct platform_device *pdev)
 	}
 
 	diu_mode = in_be32(&dr.diu_reg->diu_mode);
-	if (diu_mode != MFB_MODE1)
+	if (diu_mode == MFB_MODE0)
 		out_be32(&dr.diu_reg->diu_mode, 0);	/* disable DIU */
 
 	/* Get the IRQ of the DIU */
@@ -1611,7 +1606,7 @@ static int __devinit fsl_diu_probe(struct platform_device *pdev)
 	 * Let DIU display splash screen if it was pre-initialized
 	 * by the bootloader, set dummy area descriptor otherwise.
 	 */
-	if (diu_mode != MFB_MODE1)
+	if (diu_mode == MFB_MODE0)
 		out_be32(&dr.diu_reg->desc[0], machine_data->dummy_ad->paddr);
 
 	out_be32(&dr.diu_reg->desc[1], machine_data->dummy_ad->paddr);

trunk/include/linux/fsl-diu-fb.h

@@ -153,12 +153,12 @@ struct diu {
 	__be32 plut;
 } __attribute__ ((packed));
 
-/* Modes of operation of DIU */
+/*
+ * Modes of operation of DIU.  The DIU supports five different modes, but
+ * the driver only supports modes 0 and 1.
+ */
 #define MFB_MODE0	0	/* DIU off */
 #define MFB_MODE1	1	/* All three planes output to display */
-#define MFB_MODE2	2	/* Plane 1 to display, planes 2+3 written back*/
-#define MFB_MODE3	3	/* All three planes written back to memory */
-#define MFB_MODE4	4	/* Color bar generation */
 
 #endif /* __KERNEL__ */
 #endif /* __FSL_DIU_FB_H__ */