On Fri, Sep 20, 2019 at 2:30 PM Green Wan <green.wan@xxxxxxxxxx> wrote: > > Add DT bindings document for Platform DMA(PDMA) driver of board, > HiFive Unleashed Rev A00. > > Signed-off-by: Green Wan <green.wan@xxxxxxxxxx> > --- > .../bindings/dma/sifive,fu540-c000-pdma.yaml | 55 +++++++++++++++++++ > MAINTAINERS | 5 ++ > 2 files changed, 60 insertions(+) > create mode 100644 Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml > > diff --git a/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml b/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml > new file mode 100644 > index 000000000000..3ed015f2b83a > --- /dev/null > +++ b/Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml > @@ -0,0 +1,55 @@ > +# SPDX-License-Identifier: GPL-2.0 > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/dma/sifive,fu540-c000-pdma.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: SiFive Unleashed Rev C000 Platform DMA > + > +maintainers: > + - Green Wan <green.wan@xxxxxxxxxx> > + - Palmer Debbelt <palmer@xxxxxxxxxx> > + - Paul Walmsley <paul.walmsley@xxxxxxxxxx> > + > +description: | > + Platform DMA is a DMA engine of SiFive Unleashed. It supports 4 > + channels. Each channel has 2 interrupts. One is for DMA done and > + the other is for DME error. > + > + In different SoC, DMA could be attached to different IRQ line. > + DT file need to be changed to meet the difference. For technical > + doc, > + > + https://static.dev.sifive.com/FU540-C000-v1.0.pdf > + > +properties: > + compatible: > + items: > + - const: sifive,fu540-c000-pdma > + > + reg: > + maxItems: 1 > + > + interrupts: > + minItems: 8 > + maxItems: 8 "make dt_binding_check" should give you the error that interrupts is too short. When you say minItems: 8 then interrupts property should be like this: interrupts = <23>, <24>, <25>, <26>, <27>, <28>, <29>, <30>; So, remove the minItems: 8 and change maxItems: 1 for interrupts = <23 24 25 26 27 28 29 30>; > + > + '#dma-cells': > + const: 1 > + > +required: > + - compatible > + - reg > + - interrupts > + - '#dma-cells' > + > +examples: > + - | > + dma@3000000 { > + compatible = "sifive,fu540-c000-pdma"; > + reg = <0x0 0x3000000 0x0 0x8000>; > + interrupts = <23 24 25 26 27 28 29 30>; > + #dma-cells = <1>; > + }; > + > +... > diff --git a/MAINTAINERS b/MAINTAINERS > index 49f75d1b7b51..d0caa09a479e 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -14591,6 +14591,11 @@ F: drivers/media/usb/siano/ > F: drivers/media/usb/siano/ > F: drivers/media/mmc/siano/ > > +SIFIVE PDMA DRIVER > +M: Green Wan <green.wan@xxxxxxxxxx> > +S: Maintained > +F: Documentation/devicetree/bindings/dma/sifive,fu540-c000-pdma.yaml > + > SIFIVE DRIVERS > M: Palmer Dabbelt <palmer@xxxxxxxxxx> > M: Paul Walmsley <paul.walmsley@xxxxxxxxxx> > -- > 2.17.1 > > -- > You received this message because you are subscribed to the Google Groups "linux-hackers" group. > To unsubscribe from this group and stop receiving emails from it, send an email to linux-hackers+unsubscribe@xxxxxxxxxx. > To view this discussion on the web visit https://groups.google.com/a/sifive.com/d/msgid/linux-hackers/20190920090033.19438-1-green.wan%40sifive.com.
