Currently, spi-s3c64xx.c needs "cs-gpio" chip select GPIO to be
defined under "controller-data" node under each slave node.
&spi_x {
cs-gpios <>;
...
slave_node {
controller-data {
cs-gpio = <>;
...
};
...
};
...
};
Where as, SPI core and many other drivers uses "cs-gpios" for
from device tree node.
Hence, make changes in spi-s3c64xx.c driver to make use of
"cs-gpios" from SPI node(parent) instead of "cs-gpio" defined in
slaves "controller-data"(child) node.
Also, fixes a compilation warning and corrects the DTS nodes for
Exynos4210 based SMDKv310, Exynos4412 based Trats2, Exynos5250 based
SMDK5250 boards.
Changes since v5:
1. Fixed the "making a GPIO chip select mandatory" bug.
Naveen Krishna Chatradhi (3):
spi: s3c64xx: fix broken "cs_gpios" usage in the driver
spi: s3c64xx: for DT platofrms always get the chipselect info from DT
node
ARM: DTS: fix the chip select gpios definition in the SPI nodes
.../devicetree/bindings/spi/spi-samsung.txt | 8 ++--
arch/arm/boot/dts/exynos4210-smdkv310.dts | 2 +-
arch/arm/boot/dts/exynos4412-trats2.dts | 2 +-
arch/arm/boot/dts/exynos5250-smdk5250.dts | 2 +-
drivers/spi/spi-s3c64xx.c | 41 ++++++++------------
5 files changed, 22 insertions(+), 33 deletions(-)
--
1.7.9.5
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