From mboxrd@z Thu Jan 1 00:00:00 1970 From: m-karicheri2@ti.com (Murali Karicheri) Date: Fri, 10 Oct 2014 11:15:37 -0400 Subject: [PATCH] ARM: keystone: add bus notifier to set dma_pfn_offset for pci devices Message-ID: <1412954137-4567-1-git-send-email-m-karicheri2@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- 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 #include #include +#include #include #include @@ -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