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At some point this was exposed (not sure how),
linux-2.6/arch/arm/mach-msm/dma.c:92: error: field 'complete' has incomplete type
linux-2.6/arch/arm/mach-msm/dma.c: In function 'dmov_exec_cmdptr_complete_func':
linux-2.6/arch/arm/mach-msm/dma.c:108: error: implicit declaration of function 'complete'
linux-2.6/arch/arm/mach-msm/dma.c: In function 'msm_dmov_exec_cmd':
linux-2.6/arch/arm/mach-msm/dma.c:120: error: implicit declaration of function 'init_completion'
linux-2.6/arch/arm/mach-msm/dma.c:123: error: implicit declaration of function 'wait_for_completion'
and the fix is just to add the header.
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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git://codeaurora.org/quic/kernel/dwalker/linux-msm
* 'msm-mmc_sdcc' of git://codeaurora.org/quic/kernel/dwalker/linux-msm:
drivers: mmc: msm_sdcc: Add EMBEDDED_SDIO support
mmc: msm_sdcc: Fix issue where clocks could be disabled mid transaction
mmc: msm_sdcc: Fix the dma exec function to use the proper delays
mmc: msm_sdcc: Don't set host->curr.mrq until after we're sure the busclk timer won't fire
mmc: msm_sdcc: Enable busclk idle timer for power savings
mmc: msm_sdcc: Don't disable interrupts while suspending
mmc: msm_sdcc: Fix issue where we might not end a sucessfull request
mmc: msm_sdcc: Featurize busclock power save and disable it by default
mmc: msm_sdcc: Fix bug where busclk expiry timer was not properly disabled
mmc: msm_sdcc: Reduce command timeouts and improve reliability.
mmc: msm_sdcc: Schedule clock disable after probe
mmc: msm_sdcc: Wrap readl/writel calls with appropriate clk delays
mmc: msm_sdcc: Driver clocking/irq improvements
msm: Add 'execute' datamover callback
mmc: msm_sdcc: Snoop SDIO_CCCR_ABORT register
mmc: msm_sdcc: Clean up clock management and add a 10us delay after enabling clocks
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Avoids problems on the scorpion core.
Signed-off-by: Brian Swetland <swetland@google.com>
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Signed-off-by: Arve Hjønnevåg <arve@android.com>
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Signed-off-by: Arve Hjønnevåg <arve@android.com>
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Based on a patch from Brent DeGraaf:
"The datamover supports channels which can be shared amongst devices.
As a result, the actual data transfer may occur some time after the
request is queued up. Some devices such as mmc host controllers
will timeout if a command is issued too far in advance of the actual
transfer, so if dma to other devices on the same channel is already
in progress or queued up, the added delay can cause pending transfers
to fail before they start. This change extends the api to allow a
user callback to be invoked just before the actual transfer takes
place, thus allowing actions directly associated with the dma
transfer, such as device commands, to be invoked with precise timing.
Without this mechanism, there is no way for a driver to realize
this timing. Also adds a user pointer to the command structure for use
by the caller to reference information that may be needed by the
callback routine for proper identification and processing associated
with that specific request. This change is necessary to fix problems
associated with excessive command timeouts and race conditions in the
mmc driver."
This patch also fixes all the callers of msm_dmov_enqueue_cmd() to
ensure their callback function is NULL.
Signed-off-by: San Mehat <san@google.com>
Cc: Brent DeGraaf <bdegraaf@quicinc.com>
Cc: Brian Swetland <swetland@google.com>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
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San:
- Propagate DM errors to the originator of the request.
- Implement msm_dmov_stop_cmd()
- Add return value to init code
- Modify msm_dmov_stop_cmd() to support ungraceful flushing
Arve:
- Disable datamover interrupt when not in use.
We turn off the interrrupt to allow power collapse from idle.
Signed-off-by: San Mehat <san@android.com>
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Brian Swetland <swetland@google.com>
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Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This just leaves include/asm-arm/plat-* to deal with.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Signed-off-by: Brian Swetland <swetland@google.com>
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