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ARM: Tegra: Make tegra_dma_init a postcore_initcall 

The following commit makes the Tegra APB DMA engine fail to initialize
correctly: 0cf6230af9
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 <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
This commit is contained in:
Stephen Warren 2011-02-23 10:41:29 -07:00 committed by Colin Cross
parent 48e5114d6f
commit dc54c23bb0
2 changed files with 1 additions and 4 deletions
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4
arch/arm/mach-tegra/common.c
View File

@ -25,7 +25,6 @@
#include <asm/hardware/cache-l2x0.h> #include <asm/hardware/cache-l2x0.h>
#include <mach/iomap.h> #include <mach/iomap.h>
#include <mach/dma.h>
#include <mach/system.h> #include <mach/system.h>
#include "board.h" #include "board.h"
@ -81,7 +80,4 @@ void __init tegra_init_early(void)
tegra_init_clock(); tegra_init_clock();
tegra_clk_init_from_table(common_clk_init_table); tegra_clk_init_from_table(common_clk_init_table);
tegra_init_cache(); tegra_init_cache();
#ifdef CONFIG_TEGRA_SYSTEM_DMA
tegra_dma_init();
#endif
} }

1
arch/arm/mach-tegra/dma.c
View File

@ -743,6 +743,7 @@ fail:
} }
return ret; return ret;
} }
postcore_initcall(tegra_dma_init);
#ifdef CONFIG_PM #ifdef CONFIG_PM
static u32 apb_dma[5*TEGRA_SYSTEM_DMA_CH_NR + 3]; static u32 apb_dma[5*TEGRA_SYSTEM_DMA_CH_NR + 3];