Hallo Mark,

i will add your text to the patch.

Helmut

On 28.03.2017 12:05, Mark Rutland wrote:

On Tue, Mar 28, 2017 at 11:25:44AM +0200, Helmut Klein wrote:

quoted

Add the documentation for the device tree binding of meson_uart

Signed-off-by: Helmut Klein <redacted>
---
 .../bindings/serial/amlogic,meson_uart.txt         | 25 ++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/serial/amlogic,meson_uart.txt

diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson_uart.txt b/Documentation/devicetree/bindings/serial/amlogic,meson_uart.txt
new file mode 100644
index 000000000000..6f94ba25760d
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/amlogic,meson_uart.txt

@@ -0,0 +1,25 @@
+* Amlogic Meson UART, used in multiple SoCs (e.g. S905, s905X, ...)
+
+Required properties:
+- compatible	: "amlogic,meson-uart"
+- reg		: offset and length of the register set for the device.
+- interrupts	: device interrupt
+- clocks	: the baud rate clock for the UART and optionally the core clock for the none AO uarts
+e.g.
+uart_A: serial at 84c0 {
+	compatible = "amlogic,meson-uart";
+	reg = <0x0 0x84c0 0x0 0x14>;
+	pinctrl-0 = <&uart_a_pins &uart_a_cts_rts_pins>;
+	interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
+	clocks = <&xtal>, <&clkc CLKID_UART0>;
+	clock-names = "xtal", "core";

Please define these explicitly above, e.g.

- clocks: a list of phandle + clock-specifier pairs, one for each entry
          in clock names.
- clock-names: contains:
  * "xtal" for the baud rate clock
  * "core" for the non-AO UARTs (optional)

Thanks,
Mark.