From mboxrd@z Thu Jan 1 00:00:00 1970 From: swarren@nvidia.com (Stephen Warren) Date: Wed, 23 Feb 2011 10:11:20 -0700 Subject: [PATCH] ARM: Tegra: Make tegra_dma_init a postcore_initcall Message-ID: <1298481080-27120-1-git-send-email-swarren@nvidia.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The following commit makes the Tegra APB DMA engine fail to initialize correctly: 0cf6230af909a86f81907455eca2a5c9b8f68fe6 ARM: tegra: Move tegra_common_init to tegra_init_early The reason is that tegra_init_early_ calls tegra_dma_init which calls request_threaded_irq, which fails since the IRQ hasn't yet been marked valid; that only happens in tegra_init_irq, which gets called after tegra_init_early. This used to work OK, since tegra_init_early was tegra_common_init, which got called after tegra_init_irq, basically from the beginning of tegra_harmony_init. Solve this by converting tegra_dma_init to a postcore_initcall. This makes it execute late enough that IRQs are marked valid, and avoids having to add it back to every machine's init function. Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/common.c | 3 --- arch/arm/mach-tegra/dma.c | 1 + 2 files changed, 1 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c index 516e100..b6ab3f8 100644 --- a/arch/arm/mach-tegra/common.c +++ b/arch/arm/mach-tegra/common.c @@ -81,7 +81,4 @@ void __init tegra_init_early(void) tegra_init_clock(); tegra_clk_init_from_table(common_clk_init_table); tegra_init_cache(); -#ifdef CONFIG_TEGRA_SYSTEM_DMA - tegra_dma_init(); -#endif } diff --git a/arch/arm/mach-tegra/dma.c b/arch/arm/mach-tegra/dma.c index 2d720f2..bd4f62a 100644 --- a/arch/arm/mach-tegra/dma.c +++ b/arch/arm/mach-tegra/dma.c @@ -743,6 +743,7 @@ fail: } return ret; } +postcore_initcall(tegra_dma_init); #ifdef CONFIG_PM static u32 apb_dma[5*TEGRA_SYSTEM_DMA_CH_NR + 3]; -- 1.7.1