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Commit graph android_kernel_sony_sdm845/include/linux/sh_dma.h
Message SHA1
dma: sh_dma: not all SH DMAC implementations support MEMCPY 
Add a flag to allow platforms to specify, whether a DMAC instance supports
the MEMCPY operation. To avoid regressions, preserve the current default.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>

Guennadi Liakhovetski   authored and   Vinod Koul   commited 2012-02-01 22:23:53 +05:30
e9c8d7a03e
dma: shdma: fix runtime PM: clear channel buffers on reset 
On platforms, supporting power domains, if the domain, containing a DMAC
instance is powered down, the driver fails to resume correctly. On those
platforms DMAC channels have an additional CHCLR register for clearing
channel buffers. Using this register during runtime resume fixes the
problem.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>

Guennadi Liakhovetski   authored and   Vinod Koul   commited 2012-01-06 11:40:11 +05:30
c11b46c32c
dmaengine: move drivers to dma_transfer_direction 
fixup usage of dma direction by introducing dma_transfer_direction,
this patch moves dma/drivers/* to use new enum

Cc: Jassi Brar <jaswinder.singh@linaro.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Viresh Kumar <viresh.kumar@st.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Mika Westerberg <mika.westerberg@iki.fi>
Cc: H Hartley Sweeten <hartleys@visionengravers.com>
Cc: Li Yang <leoli@freescale.com>
Cc: Zhang Wei <zw@zh-kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Shawn Guo <shawn.guo@freescale.com>
Cc: Yong Wang <yong.y.wang@intel.com>
Cc: Tomoya MORINAGA <tomoya-linux@dsn.lapis-semi.com>
Cc: Boojin Kim <boojin.kim@samsung.com>
Cc: Barry Song <Baohua.Song@csr.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>

Vinod Koul   commited 2011-10-27 20:53:43 +05:30
db8196df4b
dmaengine: shdma: add .needs_tend_set / .no_dmars flags 
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Kuninori Morimoto   authored and   Paul Mundt   commited 2011-06-21 17:56:11 +09:00
260bf2c5f6
dmaengine: shdma: add dmaor_is_32bit flag 
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Kuninori Morimoto   authored and   Paul Mundt   commited 2011-06-21 17:56:07 +09:00
e76c3af873
dmaengine: shdma: add chcr_ie_bit 
IE bit position on CHCR register is not same in all DMAC.
This patch adds new "chcr_ie_bit" to decide it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Kuninori Morimoto   authored and   Paul Mundt   commited 2011-06-21 17:56:01 +09:00
67c6269e5c
dmaengine: shdma: add chcr_write/read function 
CHCR register position is not same in all DMAC.
This patch adds new "chcr_offset" to decide it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Kuninori Morimoto   authored and   Paul Mundt   commited 2011-06-21 17:55:57 +09:00
5899a723b3
SH: constify multiple DMA related objects and references to them 
Lists of DMA channels and slaves are not changed, make them constant. Besides,
SH7724 channel and slave configuration of both DMA controllers is identical,
remove the extra copy of the configuration data.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Guennadi Liakhovetski   authored and   Paul Mundt   commited 2010-04-26 15:50:50 +09:00
5bac942db3
dmaengine: shdma: Introduce include/linux/sh_dma.h 
Create a common platform data header file for the
shdma dmaengine driver. This is done by moving
common structures from sh asm/dmaengine.h to
linux/sh_dma.h. DMA registers are also copied from
sh asm/dma-register.h to make the code architecture
independent.

The sh header file asm/dmaengine.h is still kept
with the slave id enum. This allows us to keep the
old processor specific code as is and slowly move
over to slave id enums in per-processor headers.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Magnus Damm   authored and   Paul Mundt   commited 2010-03-23 17:20:06 +09:00
b2623a61cf