From fd7e7dea571a57ed5fbd2606e072361fca9949f2 Mon Sep 17 00:00:00 2001
From: Timur Tabi <timur@freescale.com>
Date: Tue, 16 Oct 2012 17:33:48 -0500
Subject: [PATCH] --- yaml --- r: 344529 b: refs/heads/master c:
 7af3b136d4e035d71c4e70c4b4a2017a10623fc0 h: refs/heads/master i:   344527:
 1fbc264cda118ec3dfdeb454e052184d4cc562ce v: v3

---
 [refs]                           |  2 +-
 trunk/drivers/video/fsl-diu-fb.c | 19 ++++++-------------
 2 files changed, 7 insertions(+), 14 deletions(-)

diff --git a/[refs] b/[refs]
index d9262b9e1c73..1500647595be 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8deac723f7b6528e8ab3dec5ce1c913ce3d3009c
+refs/heads/master: 7af3b136d4e035d71c4e70c4b4a2017a10623fc0
diff --git a/trunk/drivers/video/fsl-diu-fb.c b/trunk/drivers/video/fsl-diu-fb.c
index fa7f20039dd2..37175ac6584a 100644
--- a/trunk/drivers/video/fsl-diu-fb.c
+++ b/trunk/drivers/video/fsl-diu-fb.c
@@ -496,8 +496,7 @@ static void fsl_diu_enable_panel(struct fb_info *info)
 
 	switch (mfbi->index) {
 	case PLANE0:
-		if (hw->desc[0] != ad->paddr)
-			wr_reg_wa(&hw->desc[0], ad->paddr);
+		wr_reg_wa(&hw->desc[0], ad->paddr);
 		break;
 	case PLANE1_AOI0:
 		cmfbi = &data->mfb[2];
@@ -549,8 +548,7 @@ static void fsl_diu_disable_panel(struct fb_info *info)
 
 	switch (mfbi->index) {
 	case PLANE0:
-		if (hw->desc[0] != data->dummy_ad.paddr)
-			wr_reg_wa(&hw->desc[0], data->dummy_ad.paddr);
+		wr_reg_wa(&hw->desc[0], 0);
 		break;
 	case PLANE1_AOI0:
 		cmfbi = &data->mfb[2];
@@ -1519,7 +1517,6 @@ static int __devinit fsl_diu_probe(struct platform_device *pdev)
 	struct device_node *np = pdev->dev.of_node;
 	struct mfb_info *mfbi;
 	struct fsl_diu_data *data;
-	int diu_mode;
 	dma_addr_t dma_addr; /* DMA addr of fsl_diu_data struct */
 	unsigned int i;
 	int ret;
@@ -1584,10 +1581,6 @@ static int __devinit fsl_diu_probe(struct platform_device *pdev)
 		goto error;
 	}
 
-	diu_mode = in_be32(&data->diu_reg->diu_mode);
-	if (diu_mode == MFB_MODE0)
-		out_be32(&data->diu_reg->diu_mode, 0); /* disable DIU */
-
 	/* Get the IRQ of the DIU */
 	data->irq = irq_of_parse_and_map(np, 0);
 
@@ -1609,11 +1602,11 @@ static int __devinit fsl_diu_probe(struct platform_device *pdev)
 	data->dummy_ad.paddr = DMA_ADDR(data, dummy_ad);
 
 	/*
-	 * Let DIU display splash screen if it was pre-initialized
-	 * by the bootloader, set dummy area descriptor otherwise.
+	 * Let DIU continue to display splash screen if it was pre-initialized
+	 * by the bootloader; otherwise, clear the display.
 	 */
-	if (diu_mode == MFB_MODE0)
-		out_be32(&data->diu_reg->desc[0], data->dummy_ad.paddr);
+	if (in_be32(&data->diu_reg->diu_mode) == MFB_MODE0)
+		out_be32(&data->diu_reg->desc[0], 0);
 
 	out_be32(&data->diu_reg->desc[1], data->dummy_ad.paddr);
 	out_be32(&data->diu_reg->desc[2], data->dummy_ad.paddr);