Add bindings doc for Bouffalolab UART Driver

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
---
 .../serial/bouffalolab,bl808-uart.yaml        | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/serial/bouffalolab,bl808-uart.yaml

diff --git a/Documentation/devicetree/bindings/serial/bouffalolab,bl808-uart.yaml b/Documentation/devicetree/bindings/serial/bouffalolab,bl808-uart.yaml
new file mode 100644
index 000000000000..e1c2c8ac88ab
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/bouffalolab,bl808-uart.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2022 Jisheng Zhang <jszhang@kernel.org>
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/bouffalolab,uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Bouffalolab UART Controller
+
+maintainers:
+  - Jisheng Zhang <jszhang@kernel.org>
+
+allOf:
+  - $ref: serial.yaml#
+
+properties:
+  compatible:
+    const: bouffalolab,bl808-uart
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    uart0: serial@30002000 {
+        compatible = "bouffalolab,bl808-uart";
+        reg = <0x30002000 0x1000>;
+        interrupts = <53 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&xtal>;
+    };
+...
-- 
2.40.0

On Mon, 15 May 2023 00:56:44 +0800, Jisheng Zhang wrote:
> Add bindings doc for Bouffalolab UART Driver
> 
> Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
> Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
> ---
>  .../serial/bouffalolab,bl808-uart.yaml        | 47 +++++++++++++++++++
>  1 file changed, 47 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/serial/bouffalolab,bl808-uart.yaml
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
./Documentation/devicetree/bindings/serial/bouffalolab,bl808-uart.yaml: $id: relative path/filename doesn't match actual path or filename
	expected: http://devicetree.org/schemas/serial/bouffalolab,bl808-uart.yaml#

See https://patchwork.ozlabs.org/patch/1781053

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.

On Mon, May 15, 2023 at 12:56:44AM +0800, Jisheng Zhang wrote:

> +$id: http://devicetree.org/schemas/serial/bouffalolab,uart.yaml#

$id: relative path/filename doesn't match actual path or filename
        expected: http://devicetree.org/schemas/serial/bouffalolab,bl808-uart.yaml#

Please test the bindings before submission - even dtbs_check catches
that one!
Otherwise, looks fine.

Thanks,
Conor.

On Sun, May 14, 2023 at 07:17:27PM +0100, Conor Dooley wrote:
> On Mon, May 15, 2023 at 12:56:44AM +0800, Jisheng Zhang wrote:
> 
> > +$id: http://devicetree.org/schemas/serial/bouffalolab,uart.yaml#
> 
> $id: relative path/filename doesn't match actual path or filename
>         expected: http://devicetree.org/schemas/serial/bouffalolab,bl808-uart.yaml#
> 
> Please test the bindings before submission - even dtbs_check catches
> that one!

Aha, I knew the reason. I did run dt_binding_check and dtbs_check,
but then I read one of comments in v2 which suggests the renaming,
that's to say the dtbs_check is done before the renmaing. Sorry for
confusion

On Mon, May 15, 2023 at 07:28:10AM +0800, Jisheng Zhang wrote:
> On Sun, May 14, 2023 at 07:17:27PM +0100, Conor Dooley wrote:
> > On Mon, May 15, 2023 at 12:56:44AM +0800, Jisheng Zhang wrote:
> > 
> > > +$id: http://devicetree.org/schemas/serial/bouffalolab,uart.yaml#
> > 
> > $id: relative path/filename doesn't match actual path or filename
> >         expected: http://devicetree.org/schemas/serial/bouffalolab,bl808-uart.yaml#
> > 
> > Please test the bindings before submission - even dtbs_check catches
> > that one!
> 
> Aha, I knew the reason. I did run dt_binding_check and dtbs_check,
> but then I read one of comments in v2 which suggests the renaming,
> that's to say the dtbs_check is done before the renmaing. Sorry for
> confusion

No worries.
Serial aisde, rest of the series looks grand to me, perhaps you want to
resubmit the serial bits separately & I'll grab the riscv bits once the
serial side is sorted out?