Adding spidev in the compatible list, let configure spidev from device tree
instead of C source code.
Signed-off-by: Fabien Lahoudere <fabien.lahoudere@xxxxxxxxxxxxxxx>
---
Documentation/devicetree/bindings/spi/spidev.txt | 16 ++++++++++++++++
drivers/spi/spidev.c | 1 +
2 files changed, 17 insertions(+)
create mode 100644 Documentation/devicetree/bindings/spi/spidev.txt
diff --git a/Documentation/devicetree/bindings/spi/spidev.txt b/Documentation/devicetree/bindings/spi/spidev.txt
new file mode 100644
index 0000000..23200f2
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spidev.txt
@@ -0,0 +1,16 @@
+* SPIDEV
+
+spidev is a device driver to access to SPI devices using normal userspace I/O calls.
+To make an SPI device compatible with this drivers add:
+
+Required properties:
+- compatible : should be "spidev".
+
+Example:
+
+spidev0: spi@0 {
+ compatible = "spidev";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ status = "okay";
+};
diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index 2e05046..d780491 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -696,6 +696,7 @@ static struct class *spidev_class;
static const struct of_device_id spidev_dt_ids[] = {
{ .compatible = "rohm,dh2228fv" },
{ .compatible = "lineartechnology,ltc2488" },
+ { .compatible = "spidev" },
{},
};
MODULE_DEVICE_TABLE(of, spidev_dt_ids);
--
2.7.4
--
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