Hi，Jiaxun
Thank you for your reply.
I will also delete the num chipelects attribute in the device tree.
And I will send v5 in the soon.
Thanks,
-Qing
On 12/26/2020 11:31 AM, Jiaxun Yang wrote:
在 2020/12/25 下午6:35, Qing Zhang 写道:
Switch the DT binding to a YAML schema to enable the DT validation.
Signed-off-by: Qing Zhang <zhangqing@xxxxxxxxxxx>
---
v4: fix warnings/errors about running 'make dt_binding_check'
---
.../devicetree/bindings/spi/loongson,spi-ls7a.yaml | 46
++++++++++++++++++++++
1 file changed, 46 insertions(+)
create mode 100644
Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml
diff --git
a/Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml
b/Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml
new file mode 100644
index 0000000..8cc9bc5
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/loongson,spi-ls7a.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/loongson,spi-ls7a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Loongson LS7A PCH SPI Controller
+
+maintainers:
+ - Qing Zhang <zhangqing@xxxxxxxxxxx>
+
+description: |
+ This controller can be found in Loongson-3 systems with LS7A PCH.
+
+properties:
+ compatible:
+ const: loongson,ls7a-spi
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - num-chipselects
num-chipselects never parsed in code?
Thanks.
- Jiaxun
+
+additionalProperties: false
+
+examples:
+ - |
+ pci {
+ #address-cells = <3>;
+ #size-cells = <2>;
+
+ spi@16,0 {
+ compatible = "pci0014,7a0b.0",
+ "pci0014,7a0b",
+ "pciclass088000",
+ "pciclass0800";
+
+ reg = <0xb000 0x0 0x0 0x0 0x0>;
+ num-chipselects = <0>;
+ };
+ };
+
+...
