https://github.com/torvalds/linux
Revision d5ea7b5ec1ee4dac868143806c0bd94855754677 authored by Hein Tibosch on 25 October 2012, 20:38:05 UTC, committed by Linus Torvalds on 25 October 2012, 21:37:53 UTC
The dw_dmac driver was originally developed for avr32 to be used with the Synopsys DesignWare AHB DMA controller. Starting from 2.6.38, access to the device's i/o memory was done with the little-endian readl/writel functions(1) This broke the driver for the avr32 platform, because it needs big (native) endian accessors. This patch makes the endianness configurable using 'DW_DMAC_BIG_ENDIAN_IO', which will default be true for AVR32 I submitted this patch before(2) but then waited for Andy to finish other changes to the same module(3). (1) https://patchwork.kernel.org/patch/608211 (2) https://lkml.org/lkml/2012/8/26/148 (3) https://lkml.org/lkml/2012/9/21/173 Signed-off-by: Hein Tibosch <hein_tibosch@yahoo.es> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Ludovic Desroches <ludovic.desroches@atmel.com> Cc: Havard Skinnemoen <havard@skinnemoen.net> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Tip revision: d5ea7b5ec1ee4dac868143806c0bd94855754677 authored by Hein Tibosch on 25 October 2012, 20:38:05 UTC
drivers/dma/dw_dmac: make driver's endianness configurable
drivers/dma/dw_dmac: make driver's endianness configurable
Tip revision: d5ea7b5
File | Mode | Size |
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Documentation | ||
arch | ||
block | ||
crypto | ||
drivers | ||
firmware | ||
fs | ||
include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
virt | ||
.gitignore | -rw-r--r-- | 1.1 KB |
.mailmap | -rw-r--r-- | 4.4 KB |
COPYING | -rw-r--r-- | 18.3 KB |
CREDITS | -rw-r--r-- | 92.7 KB |
Kbuild | -rw-r--r-- | 2.5 KB |
Kconfig | -rw-r--r-- | 252 bytes |
MAINTAINERS | -rw-r--r-- | 222.4 KB |
Makefile | -rw-r--r-- | 46.6 KB |
README | -rw-r--r-- | 18.2 KB |
REPORTING-BUGS | -rw-r--r-- | 3.3 KB |
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