Re: [PATCH v2,2/3] tty/serial: meson_uart: add documentation for the dt-bindings

From: Helmut Klein
Date: Tue Mar 28 2017 - 14:21:53 EST


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:
Add the documentation for the device tree binding of meson_uart

Signed-off-by: Helmut Klein <hgkr.klein@xxxxxxxxx>
---
.../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@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.