| Message ID | 20241125083914.2934815-1-vaishnav.a@ti.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [1/2] dt-bindings: dma: ti: k3-bcdma: Add TX channel for AM62A CSIRX BCDMA | expand |
On Mon, Nov 25, 2024 at 02:09:13PM +0530, Vaishnav Achath wrote: > J722S CSIRX BCDMA is based on AM62A BCDMA and supports CSI TX channels There's no specific compatible in this file for a j722s, you should add one. > in addition to currently supported RX channels. Add TX channel > properties as optional properties in the list so that the same > compatible can be reused. K3 UDMA makes use of TCHAN_CNT > capabilities register to identify whether platform supports > TX channels. > > Signed-off-by: Vaishnav Achath <vaishnav.a@ti.com> > --- > Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml b/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml > index 27b8e1636560..c748f78b313e 100644 > --- a/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml > +++ b/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml > @@ -138,19 +138,22 @@ allOf: > then: > properties: > ti,sci-rm-range-bchan: false > - ti,sci-rm-range-tchan: false > > reg: > + minItems: 3 You need to then constrain maxItems to 3 for all !j722s devices in an if/then/else to avoid allowing 4 reg entries where it is not valid. Thanks, Conor. > items: > - description: BCDMA Control /Status Registers region > - description: RX Channel Realtime Registers region > - description: Ring Realtime Registers region > + - description: TX Channel Realtime Registers region > > reg-names: > + minItems: 3 > items: > - const: gcfg > - const: rchanrt > - const: ringrt > + - const: tchanrt > > required: > - power-domains > -- > 2.34.1 >
diff --git a/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml b/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml index 27b8e1636560..c748f78b313e 100644 --- a/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml +++ b/Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml @@ -138,19 +138,22 @@ allOf: then: properties: ti,sci-rm-range-bchan: false - ti,sci-rm-range-tchan: false reg: + minItems: 3 items: - description: BCDMA Control /Status Registers region - description: RX Channel Realtime Registers region - description: Ring Realtime Registers region + - description: TX Channel Realtime Registers region reg-names: + minItems: 3 items: - const: gcfg - const: rchanrt - const: ringrt + - const: tchanrt required: - power-domains
J722S CSIRX BCDMA is based on AM62A BCDMA and supports CSI TX channels in addition to currently supported RX channels. Add TX channel properties as optional properties in the list so that the same compatible can be reused. K3 UDMA makes use of TCHAN_CNT capabilities register to identify whether platform supports TX channels. Signed-off-by: Vaishnav Achath <vaishnav.a@ti.com> --- Documentation/devicetree/bindings/dma/ti/k3-bcdma.yaml | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)