Marc
On 8/16/19 4:38 AM, Marc Kleine-Budde wrote:
On 5/9/19 6:11 PM, Dan Murphy wrote:
DT binding documentation for TI TCAN4x5x driver.
Signed-off-by: Dan Murphy <dmurphy@xxxxxx>
---
v12 - No changes - https://lore.kernel.org/patchwork/patch/1052300/
v11 - No changes - https://lore.kernel.org/patchwork/patch/1051178/
v10 - No changes - https://lore.kernel.org/patchwork/patch/1050488/
v9 - No Changes - https://lore.kernel.org/patchwork/patch/1050118/
v8 - No Changes - https://lore.kernel.org/patchwork/patch/1047981/
v7 - Made device state optional - https://lore.kernel.org/patchwork/patch/1047218/
v6 - No changes - https://lore.kernel.org/patchwork/patch/1042445/
.../devicetree/bindings/net/can/tcan4x5x.txt | 37 +++++++++++++++++++
1 file changed, 37 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/can/tcan4x5x.txt
diff --git a/Documentation/devicetree/bindings/net/can/tcan4x5x.txt b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
new file mode 100644
index 000000000000..c388f7d9feb1
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/can/tcan4x5x.txt
@@ -0,0 +1,37 @@
+Texas Instruments TCAN4x5x CAN Controller
+================================================
+
+This file provides device node information for the TCAN4x5x interface contains.
+
+Required properties:
+ - compatible: "ti,tcan4x5x"
+ - reg: 0
+ - #address-cells: 1
+ - #size-cells: 0
+ - spi-max-frequency: Maximum frequency of the SPI bus the chip can
+ operate at should be less than or equal to 18 MHz.
+ - data-ready-gpios: Interrupt GPIO for data and error reporting.
+ - device-wake-gpios: Wake up GPIO to wake up the TCAN device.
+
+See Documentation/devicetree/bindings/net/can/m_can.txt for additional
+required property details.
+
+Optional properties:
+ - reset-gpios: Hardwired output GPIO. If not defined then software
+ reset.
+ - device-state-gpios: Input GPIO that indicates if the device is in
+ a sleep state or if the device is active.
+
+Example:
+tcan4x5x: tcan4x5x@0 {
+ compatible = "ti,tcan4x5x";
+ reg = <0>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ spi-max-frequency = <10000000>;
+ bosch,mram-cfg = <0x0 0 0 32 0 0 1 1>;
+ data-ready-gpios = <&gpio1 14 GPIO_ACTIVE_LOW>;
Can you convert this into a proper interrupt property? E.g.:
OK. Do you want v13 or do you want patches on top for net-next?
Dan
interrupt-parent = <&gpio4>;
interrupts = <13 0x2>;
See:
https://elixir.bootlin.com/linux/latest/source/Documentation/devicetree/bindings/net/can/microchip,mcp251x.txt#L21
https://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next.git/tree/drivers/net/can/spi/mcp251x.c?h=mcp251x#n945
This second link says it invalid
Dan
+ device-state-gpios = <&gpio3 21 GPIO_ACTIVE_HIGH>;
+ device-wake-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio1 27 GPIO_ACTIVE_LOW>;
+};
Marc
