linux-toradex.git/arch/arm/plat-pxa, branch v4.4.63

ARM: pxa: ssp: Fix build error by removing originally incorrect DT binding

2015-09-13T10:55:27+00:00

Commit 03fbf488cece ("spi: pxa2xx: Differentiate Intel LPSS types") caused
build error here because it removed the type LPSS_SSP and I didn't notice
the type was used here too.

I believe commit a6e56c28a178 ("ARM: pxa: ssp: add DT bindings") added it
accidentally by copying all enum pxa_ssp_type types from
include/linux/pxa2xx_ssp.h even LPSS_SSP was for Intel LPSS SPI devices.

Fix the build error by removing this incorrect binding.

Fixes: 03fbf488cece ("spi: pxa2xx: Differentiate Intel LPSS types")
Signed-off-by: Jarkko Nikula 
Reported-by: Axel Lin 
Cc:  # 4.2
Signed-off-by: Robert Jarzmik

ARM: pxa: transition to dmaengine phase 1

2015-07-18T10:16:33+00:00

In order to slowly transition pxa to dmaengine, the legacy code will now
rely on dmaengine to request a channel.

This implies that PXA architecture selects DMADEVICES and PXA_DMA,
which is not pretty. Yet it enables PXA drivers to be ported one by one,
with part of them using dmaengine, and the other part using the legacy
code.

Signed-off-by: Robert Jarzmik

ARM: plat-pxa: remove use of seq_printf return value

2015-04-15T23:35:25+00:00

The seq_printf return value, because it's frequently misused,
(as it is here, it doesn't return # of chars emitted) will
eventually be converted to void.

See: commit 1f33c41c03da ("seq_file: Rename seq_overflow() to
     seq_has_overflowed() and make public")

Signed-off-by: Joe Perches 
Cc: Russell King 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ARM: plat-pxa: drop owner assignment from platform_drivers

2014-10-20T14:20:07+00:00

A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang

ARM: pxa: ssp: provide platform_device_id for PXA3xx

2014-09-18T17:56:02+00:00

Provide an explicit match string for PXA3xx SSP ports.

Without this match string, SSP0/SSP1/SSP2 in PXA3xxx will be consided as
PXA27x SSP Port.

Signed-off-by: Daniel Mack 
Signed-off-by: Haojian Zhuang

ARM: pxa: remove IRQF_DISABLED

2013-12-12T01:32:41+00:00

This flag is a NOOP since 2.6.35 and can be removed.

Signed-off-by: Michael Opdenacker 
Acked-by: Eric Miao 
Signed-off-by: Haojian Zhuang 
[olof: Fixed compilation failure for pcm990-baseboard]
Signed-off-by: Olof Johansson

ARM: pxa: ssp: Check return values from phandle lookups

2013-09-10T00:14:09+00:00

Commit a6e56c28a178cef5f (ARM: pxa: ssp: add DT bindings) causes warnings
when built:

arch/arm/plat-pxa/ssp.c: In function 'pxa_ssp_probe':
arch/arm/plat-pxa/ssp.c:145:17: warning: 'dma_spec.args[0]' may be used
	uninitialized in this function [-Wmaybe-uninitialized]

Resolve by checking return values and aborting when lookups fail.

Cc: Daniel Mack 
Cc: Mark Brown 
Cc: Haojian Zhuang 
Signed-off-by: Olof Johansson

ARM: pxa: ssp: add pxa_ssp_request_of()

2013-08-14T18:54:30+00:00

Add a function to lookup ssp devices from device tree. This way, users
can reference the ssp devices in order to register to them.

Signed-off-by: Daniel Mack 
Acked-by: Haojian Zhuang 
Signed-off-by: Mark Brown

ARM: pxa: ssp: use devm_ functions

2013-08-14T18:54:27+00:00

Use devm_ functions to allocate memory, ioremap, clk_get etc to clean up
the error unwind path.

Signed-off-by: Daniel Mack 
Acked-by: Haojian Zhuang 
Signed-off-by: Mark Brown

ARM: pxa: ssp: add DT bindings

2013-08-14T18:54:23+00:00

This patch contains an ugly hack for looking up the the DMA request
number. The problem here is that the implementation as it stands will
allocate the DMA channel from the user of the ssp port, and hence we
cannot allocate a real channel here.

Signed-off-by: Daniel Mack 
Acked-by: Haojian Zhuang 
Signed-off-by: Mark Brown