| Message ID | 1553349688-1946-5-git-send-email-qiaozhou@asrmicro.com |
|---|---|
| State | Changes Requested, archived |
| Headers | show |
| Series | Add dts files for ASR8751C SoC | expand |
| Context | Check | Description |
|---|---|---|
| robh/checkpatch | warning | "total: 0 errors, 1 warnings, 23 lines checked" |
On Sat, Mar 23, 2019 at 10:01:25PM +0800, qiaozhou wrote: > From: Qiao Zhou <qiaozhou@asrmicro.com> > > Add binding documentation for ASR8751C serial device. > > Signed-off-by: qiaozhou <qiaozhou@asrmicro.com> > --- > .../devicetree/bindings/serial/asr-serial.txt | 23 ++++++++++++++++++++++ > 1 file changed, 23 insertions(+) > create mode 100644 Documentation/devicetree/bindings/serial/asr-serial.txt > > diff --git a/Documentation/devicetree/bindings/serial/asr-serial.txt b/Documentation/devicetree/bindings/serial/asr-serial.txt > new file mode 100644 > index 0000000..9e0e191 > --- /dev/null > +++ b/Documentation/devicetree/bindings/serial/asr-serial.txt > @@ -0,0 +1,23 @@ > +* UART Controller of ASR8751C SoCs > + > +Required properties: > +- compatible : should be "asr,uart" Needs an SoC specific compatible. > +- reg: iomem address and length of uart registers > +- interrupts : Should be the interrupt number > +- clocks: clock required by uart > +- clock-frequency: frequency of clock source > +- dmas: dma channel used by uart tx or rx > +- dma-names: dma name of uart tx or rx > + > +Example: > + > + uart0: uart@d4017000 { > + compatible = "asr,uart"; > + reg = <0xd4017000 0x1000>; > + interrupts = <0 32 0x4>; > + clock-frequency = <13000000>; > + dmas = <&pdma0 AP_UART0_RX 1 > + &pdma0 AP_UART0_TX 1>; > + dma-names = "rx", "tx"; > + clocks = <&soc_clocks ASR_CLK_UART0>; > + }; > -- > 2.7.4 >
diff --git a/Documentation/devicetree/bindings/serial/asr-serial.txt b/Documentation/devicetree/bindings/serial/asr-serial.txt new file mode 100644 index 0000000..9e0e191 --- /dev/null +++ b/Documentation/devicetree/bindings/serial/asr-serial.txt @@ -0,0 +1,23 @@ +* UART Controller of ASR8751C SoCs + +Required properties: +- compatible : should be "asr,uart" +- reg: iomem address and length of uart registers +- interrupts : Should be the interrupt number +- clocks: clock required by uart +- clock-frequency: frequency of clock source +- dmas: dma channel used by uart tx or rx +- dma-names: dma name of uart tx or rx + +Example: + + uart0: uart@d4017000 { + compatible = "asr,uart"; + reg = <0xd4017000 0x1000>; + interrupts = <0 32 0x4>; + clock-frequency = <13000000>; + dmas = <&pdma0 AP_UART0_RX 1 + &pdma0 AP_UART0_TX 1>; + dma-names = "rx", "tx"; + clocks = <&soc_clocks ASR_CLK_UART0>; + };