aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/brcm2708/patches-4.4/0544-fb-Use-correct-bus-address-for-dest-of-dma-memcpy.patch
blob: 90bce7ec78907e3f031e8d912d55f8f6b6d02c46 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
From 02baa554c7768e20668a466b35e479e8454d2d61 Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Wed, 16 Nov 2016 21:17:27 +0000
Subject: [PATCH] fb: Use correct bus address for dest of dma memcpy

---
 drivers/video/fbdev/bcm2708_fb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/video/fbdev/bcm2708_fb.c
+++ b/drivers/video/fbdev/bcm2708_fb.c
@@ -438,7 +438,7 @@ static void dma_memcpy(struct bcm2708_fb
 
 	cb->info = BCM2708_DMA_BURST(burst_size) | BCM2708_DMA_S_WIDTH |
 		   BCM2708_DMA_S_INC | BCM2708_DMA_D_WIDTH |
-		   BCM2708_DMA_D_INC | BCM2708_DMA_TDMODE;
+		   BCM2708_DMA_D_INC;
 	cb->dst = dst;
 	cb->src = src;
 	cb->length = size;
@@ -521,7 +521,7 @@ static long vc_mem_copy(struct bcm2708_f
 		size_t s = min(size, remaining);
 		unsigned char *p = (unsigned char *)ioparam.src + offset;
 		unsigned char *q = (unsigned char *)ioparam.dst + offset;
-		dma_memcpy(fb, (dma_addr_t)buf, INTALIAS_L1L2_NONALLOCATING((dma_addr_t)p), size);
+		dma_memcpy(fb, bus_addr, INTALIAS_L1L2_NONALLOCATING((dma_addr_t)p), size);
 		if (copy_to_user(q, buf, s) != 0) {
 			pr_err("[%s]: failed to copy-to-user\n",
 					__func__);