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5 Commits

Author SHA1 Message Date
Axel Lin
71c5e53b42 spi: Drop duplicate code to set master->dev.parent 
It's done by spi_alloc_master().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
 2016-04-26 11:56:09 +01:00
Crestez Dan Leonard
83835fb078 spi: dln2: Pass of_node to spi master 
This allows defining SPI devices connected to a DLN2 using devicetree.

This already works for i2c because of a similar patch:
3b10db23: i2c: dln2: set the device tree node of the adapter

Signed-off-by: Crestez Dan Leonard <leonard.crestez@intel.com>
Acked-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
 2016-04-15 18:02:58 +01:00
Laurentiu Palcu
2b5e368e41 spi/dln2: simplify return flow for dln2_spi_transfer_setup and dln2_spi_enable 
This fixes the following kbuild test robot warnings:

>> drivers/spi/spi-dln2.c:124:1-4: WARNING: end returns can be simplified if negative or 0 value
>> drivers/spi/spi-dln2.c:656:1-4: WARNING: end returns can be simplified if negative or 0 value

Additionally, fix a comment after switching from CONFIG_PM_RUNTIME to
CONFIG_PM.

Reported-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
 2015-01-06 17:02:50 +00:00
Mark Brown
b2e5dda14f spi/dln2: Fix for PM_RUNTIME removal 
Signed-off-by: Mark Brown <broonie@kernel.org>
 2014-12-23 00:27:41 +00:00
Laurentiu Palcu
3d8c0d749d spi: add support for DLN-2 USB-SPI adapter 
This adds support for Diolan DLN2 USB-SPI adapter.

Information about the USB protocol interface can be found in the
Programmer's Reference Manual [1], see section 5.4.6 for the SPI
master module commands and responses.

[1] https://www.diolan.com/downloads/dln-api-manual.pdf

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
 2014-12-22 18:36:46 +00:00