From 314b02f503c2c219fde0fcf6f086fda415f8a847 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Fri, 8 Jul 2011 00:17:27 -0500 Subject: [PATCH] powerpc: implement arch_setup_pdev_archdata We have a long standing issues with platform devices not have a valid dma_mask pointer. This hasn't been an issue to date as no platform device has tried to set its dma_mask value to a non-default value. Acked-by: Greg Kroah-Hartman Signed-off-by: Kumar Gala --- arch/powerpc/kernel/setup-common.c | 28 ++++------------------------ drivers/of/platform.c | 4 ++-- 2 files changed, 6 insertions(+), 26 deletions(-) diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index e053b16..c600faf 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -709,29 +709,9 @@ void ppc_printk_progress(char *s, unsigned short hex) pr_info("%s\n", s); } -static int ppc_dflt_bus_notify(struct notifier_block *nb, - unsigned long action, void *data) +void arch_setup_pdev_archdata(struct platform_device *pdev) { - struct device *dev = data; - - /* We are only intereted in device addition */ - if (action != BUS_NOTIFY_ADD_DEVICE) - return 0; - - set_dma_ops(dev, &dma_direct_ops); - - return NOTIFY_DONE; -} - -static struct notifier_block ppc_dflt_plat_bus_notifier = { - .notifier_call = ppc_dflt_bus_notify, - .priority = INT_MAX, -}; - -static int __init setup_bus_notifier(void) -{ - bus_register_notifier(&platform_bus_type, &ppc_dflt_plat_bus_notifier); - return 0; + pdev->archdata.dma_mask = DMA_BIT_MASK(32); + pdev->dev.dma_mask = &pdev->archdata.dma_mask; + set_dma_ops(&pdev->dev, &dma_direct_ops); } - -arch_initcall(setup_bus_notifier); diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 63d3cb7..cfc6a79 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -153,7 +153,7 @@ struct platform_device *of_device_alloc(struct device_node *np, } dev->dev.of_node = of_node_get(np); -#if defined(CONFIG_PPC) || defined(CONFIG_MICROBLAZE) +#if defined(CONFIG_MICROBLAZE) dev->dev.dma_mask = &dev->archdata.dma_mask; #endif dev->dev.parent = parent; @@ -189,7 +189,7 @@ struct platform_device *of_platform_device_create(struct device_node *np, if (!dev) return NULL; -#if defined(CONFIG_PPC) || defined(CONFIG_MICROBLAZE) +#if defined(CONFIG_MICROBLAZE) dev->archdata.dma_mask = 0xffffffffUL; #endif dev->dev.coherent_dma_mask = DMA_BIT_MASK(32); -- 2.7.4