linux-toradex.git/include/linux/platform_data/spi-s3c64xx.h, branch v6.3

spi: s3c64xx: Convert to use GPIO descriptors

2022-01-24T13:37:33+00:00

Convert the S3C64xx SPI host to use GPIO descriptors.

Provide GPIO descriptor tables for the one user with CS
0 and 1.

Cc: linux-samsung-soc@vger.kernel.org
Cc: Sylwester Nawrocki 
Reviewed-by: Krzysztof Kozlowski 
Reviewed-by: Sam Protsenko 
Signed-off-by: Linus Walleij 
Link: https://lore.kernel.org/r/20220118230915.157797-3-linus.walleij@linaro.org
Signed-off-by: Mark Brown

spi: s3c64xx: Drop custom gpio setup argument

2022-01-24T13:37:32+00:00

The SPI0 platform population function was taking a custom
gpio setup callback but the only user pass NULL as
argument so drop this argument.

Cc: linux-samsung-soc@vger.kernel.org
Cc: Krzysztof Kozlowski 
Cc: Sylwester Nawrocki 
Signed-off-by: Linus Walleij 
Reviewed-by: Krzysztof Kozlowski 
Reviewed-by: Sam Protsenko 
Link: https://lore.kernel.org/r/20220118230915.157797-2-linus.walleij@linaro.org
Signed-off-by: Mark Brown

spi: s3c64xx: Delete unused boardfile helpers

2022-01-24T13:37:31+00:00

The helpers to use SPI host 1 and 2 are unused in the kernel
and taking up space and maintenance hours. New systems should
use device tree and not this, so delete the code.

Cc: linux-samsung-soc@vger.kernel.org
Cc: Krzysztof Kozlowski 
Cc: Sylwester Nawrocki 
Signed-off-by: Linus Walleij 
Reviewed-by: Sam Protsenko 
Reviewed-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/20220118230915.157797-1-linus.walleij@linaro.org
Signed-off-by: Mark Brown

spi: s3c64xx: add SPDX identifier

2018-01-08T15:38:06+00:00

Replace the original license statement with the SPDX identifier.

Signed-off-by: Andi Shyti 
Reviewed-by: Krzysztof Kozlowski 
Acked-by: Philippe Ombredanne 
Signed-off-by: Mark Brown

ARM: s3c64xx: Drop unused DMA fields from struct s3c64xx_spi_csinfo

2016-11-17T10:21:29+00:00

There is no drivers using those fields so remove them and
the remaining initializations.

Signed-off-by: Sylwester Nawrocki 
Tested-by: Charles Keepax 
Acked-by: Krzysztof Kozlowski 
Acked-by: Arnd Bergmann 
Signed-off-by: Vinod Koul

spi: s3c64xx: consider the case when the CS line is not connected

2016-06-29T21:45:23+00:00

When the CS line is not connected, it is not needed to enable or
disable the chip selection functionality from the s3c64xx
devices in order to perform a transfer.
Set the CS controller logically always enabled already during
initialization (by writing '0' in the S3C64XX_SPI_SLAVE_SEL
register) and never disable it.

Signed-off-by: Andi Shyti 
Signed-off-by: Mark Brown

spi: s3c64xx: pass DMA arguments in platform data

2015-11-18T17:52:38+00:00

The s3c64xx platform data already contains a pointer to the
DMA filter function, but not to the associated data.

This simplifies the code and makes it more generic by
passing the data along with the filter function like
we do for other drivers.

Signed-off-by: Arnd Bergmann 
Signed-off-by: Mark Brown

spi/s3c64xx: Trivial cleanup in header file

2014-02-16T01:59:13+00:00

Commit 436d42c61c3e ("ARM: samsung: move platform_data definitions")
moved the files to the current location but forgot to remove the pointer
to its previous location. Clean it up. While at it also change the header
file protection macros appropriately.

Signed-off-by: Sachin Kamat 
Signed-off-by: Mark Brown

spi: s3c64xx: move to generic dmaengine API

2013-04-12T12:54:58+00:00

The spi-s3c64xx uses a Samsung proprietary interface for
talking to the DMA engine, which does not work with
multiplatform kernels.

This version of the patch leaves the old code in place,
behind an #ifdef. This can be removed in the future,
after the s3c64xx platform start supporting the regular
dmaengine interface. An earlier version of this patch was
tested successfully on exynos5250 by Padma Venkat.

The conversion was rather mechanical, since the samsung
interface is just a shallow wrapper around the dmaengine
interface.

Signed-off-by: Arnd Bergmann

ARM: samsung: move platform_data definitions

2012-09-19T15:42:18+00:00

Platform data for device drivers should be defined in
include/linux/platform_data/*.h, not in the architecture
and platform specific directories.

This moves such data out of the samsung include directories

Signed-off-by: Arnd Bergmann 
Acked-by: Mark Brown 
Acked-by: Greg Kroah-Hartman 
Acked-by: Nicolas Pitre 
Acked-by: Mauro Carvalho Chehab 
Cc: Kukjin Kim 
Cc: Kyungmin Park 
Cc: Ben Dooks 
Cc: Jeff Garzik 
Cc: Guenter Roeck 
Cc: "Wolfram Sang (embedded platforms)" 
Cc: Dmitry Torokhov 
Cc: Bryan Wu 
Cc: Richard Purdie 
Cc: Sylwester Nawrocki 
Cc: Chris Ball 
Cc: David Woodhouse 
Cc: Grant Likely 
Cc: Felipe Balbi 
Cc: Alan Stern 
Cc: Sangbeom Kim 
Cc: Liam Girdwood 
Cc: linux-samsung-soc@vger.kernel.org