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SubjectRe: [spi-devel-general] [PATCH 1/2] spi: new SPI bus lock/unlockfunctions
On Wed, Dec 16, 2009 at 17:49, H Hartley Sweeten wrote:
> On Thursday, September 17, 2009 3:03 PM, Mike Frysinger wrote:
>> From: Yi Li <>
>> For some MMC cards over SPI bus, it needs to lock the SPI bus for its own
>> use.  The SPI transfer must not be interrupted by other SPI devices that
>> share the SPI bus with SPI MMC card.
>> This patch introduces 2 APIs for SPI bus locking operation.
> Has any additional work be done on this patchset?


> It would be nice to finally have a solution that lets the mmc_spi driver
> work on a shared spi bus.

the latest patch is on the list for _anyone_ to contribute their fixes
to address the posted issues
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