lkml.org 
[lkml]   [2014]   [Oct]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] ARM: keystone: add bus notifier to set dma_pfn_offset for pci devices
Date
When PCI device driver such as that for e1000e tries to set dma mask
using dma_set_mask_and_coherent(), it fails because the dma_pfn_offset
is incorrect on a Keystone SoC. This patch fix this by adding a bus
notifier to set this correctly for PCI devices.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
---
arch/arm/mach-keystone/keystone.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/arch/arm/mach-keystone/keystone.c b/arch/arm/mach-keystone/keystone.c
index 7f352de..13afe95 100644
--- a/arch/arm/mach-keystone/keystone.c
+++ b/arch/arm/mach-keystone/keystone.c
@@ -15,6 +15,7 @@
#include <linux/of_platform.h>
#include <linux/of_address.h>
#include <linux/memblock.h>
+#include <linux/pci.h>

#include <asm/setup.h>
#include <asm/mach/map.h>
@@ -54,6 +55,8 @@ static void __init keystone_init(void)
keystone_pm_runtime_init();
if (platform_nb.notifier_call)
bus_register_notifier(&platform_bus_type, &platform_nb);
+ if (platform_nb.notifier_call)
+ bus_register_notifier(&pci_bus_type, &platform_nb);
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
}

--
1.7.9.5


\
 
 \ /
  Last update: 2014-10-10 17:42    [W:0.080 / U:0.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site