From 5ce4c9a7fc98d1fac77d9266e4ce968bf49cd320 Mon Sep 17 00:00:00 2001
From: Magnus Damm <magnus.damm@gmail.com>
Date: Wed, 6 Feb 2008 01:39:25 -0800
Subject: [PATCH] --- yaml --- r: 83569 b: refs/heads/master c:
 b1230ee50a9903a987feaad767fb71e2fd173894 h: refs/heads/master i:   83567:
 7ec3302a0a47f26dbc3b13ac92fe9e31ba8fac67 v: v3

---
 [refs]                        | 2 +-
 trunk/drivers/video/sm501fb.c | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 3e91f64614a4..a41a3fb29ca4 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: dfcffa467b4112fa6f1631c9d6bf7759c3bbe75a
+refs/heads/master: b1230ee50a9903a987feaad767fb71e2fd173894
diff --git a/trunk/drivers/video/sm501fb.c b/trunk/drivers/video/sm501fb.c
index e1d6085bc347..8c39e4d5b08f 100644
--- a/trunk/drivers/video/sm501fb.c
+++ b/trunk/drivers/video/sm501fb.c
@@ -1276,6 +1276,7 @@ static int sm501fb_start(struct sm501fb_info *info,
 {
 	struct resource	*res;
 	struct device *dev;
+	int k;
 	int ret;
 
 	info->dev = dev = &pdev->dev;
@@ -1337,6 +1338,13 @@ static int sm501fb_start(struct sm501fb_info *info,
 
 	info->fbmem_len = (res->end - res->start)+1;
 
+	/* clear framebuffer memory - avoids garbage data on unused fb */
+	memset(info->fbmem, 0, info->fbmem_len);
+
+	/* clear palette ram - undefined at power on */
+	for (k = 0; k < (256 * 3); k++)
+		writel(0, info->regs + SM501_DC_PANEL_PALETTE + (k * 4));
+
 	/* enable display controller */
 	sm501_unit_power(dev->parent, SM501_GATE_DISPLAY, 1);