2023-06-15 18:34:03

by Lucas Tanure

[permalink] [raw]
Subject: [PATCH 4/6] dt-bindings: serial: amlogic, meson-uart: support T7

Add serial bindings support menson T7 SoC family.

Signed-off-by: Lucas Tanure <[email protected]>
---
Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml | 1 +
1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
index 01ec45b3b406..01b01f8840ea 100644
--- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
@@ -46,6 +46,7 @@ properties:
- amlogic,meson8b-uart
- amlogic,meson-gx-uart
- amlogic,meson-s4-uart
+ - amlogic,meson-t7-uart
- description: Everything-Else power domain UART controller on G12A SoCs
items:
- const: amlogic,meson-g12a-uart
--
2.41.0



2023-06-15 21:36:23

by Conor Dooley

[permalink] [raw]
Subject: Re: [PATCH 4/6] dt-bindings: serial: amlogic, meson-uart: support T7

On Thu, Jun 15, 2023 at 07:29:36PM +0100, Lucas Tanure wrote:
> Add serial bindings support menson T7 SoC family.
>
> Signed-off-by: Lucas Tanure <[email protected]>
> ---
> Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
> index 01ec45b3b406..01b01f8840ea 100644
> --- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
> +++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
> @@ -46,6 +46,7 @@ properties:
> - amlogic,meson8b-uart
> - amlogic,meson-gx-uart
> - amlogic,meson-s4-uart
> + - amlogic,meson-t7-uart

| diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
| index 2501db5a7aaf..0208f9a6ba7e 100644
| --- a/drivers/tty/serial/meson_uart.c
| +++ b/drivers/tty/serial/meson_uart.c
| @@ -796,6 +796,10 @@ static const struct of_device_id meson_uart_dt_match[] = {
| .compatible = "amlogic,meson-s4-uart",
| .data = (void *)&meson_g12a_uart_data,
| },
| + {
| + .compatible = "amlogic,meson-t7-uart",
| + .data = (void *)&meson_g12a_uart_data,
| + },
| { /* sentinel */ },
| };
| MODULE_DEVICE_TABLE(of, meson_uart_dt_match);

You're adding another element to this enum, but the driver change
implies compatibility with the s4 uart. Should you not set this up with
fallback compatibles?

Cheers,
Conor.

> - description: Everything-Else power domain UART controller on G12A SoCs
> items:
> - const: amlogic,meson-g12a-uart
> --
> 2.41.0
>


Attachments:
(No filename) (1.78 kB)
signature.asc (235.00 B)
Download all attachments

2023-06-18 18:04:20

by Lucas Tanure

[permalink] [raw]
Subject: Re: [PATCH 4/6] dt-bindings: serial: amlogic, meson-uart: support T7

On Thu, Jun 15, 2023 at 10:25 PM Conor Dooley <[email protected]> wrote:
>
> On Thu, Jun 15, 2023 at 07:29:36PM +0100, Lucas Tanure wrote:
> > Add serial bindings support menson T7 SoC family.
> >
> > Signed-off-by: Lucas Tanure <[email protected]>
> > ---
> > Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml | 1 +
> > 1 file changed, 1 insertion(+)
> >
> > diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
> > index 01ec45b3b406..01b01f8840ea 100644
> > --- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
> > +++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
> > @@ -46,6 +46,7 @@ properties:
> > - amlogic,meson8b-uart
> > - amlogic,meson-gx-uart
> > - amlogic,meson-s4-uart
> > + - amlogic,meson-t7-uart
>
> | diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
> | index 2501db5a7aaf..0208f9a6ba7e 100644
> | --- a/drivers/tty/serial/meson_uart.c
> | +++ b/drivers/tty/serial/meson_uart.c
> | @@ -796,6 +796,10 @@ static const struct of_device_id meson_uart_dt_match[] = {
> | .compatible = "amlogic,meson-s4-uart",
> | .data = (void *)&meson_g12a_uart_data,
> | },
> | + {
> | + .compatible = "amlogic,meson-t7-uart",
> | + .data = (void *)&meson_g12a_uart_data,
> | + },
> | { /* sentinel */ },
> | };
> | MODULE_DEVICE_TABLE(of, meson_uart_dt_match);
>
> You're adding another element to this enum, but the driver change
> implies compatibility with the s4 uart. Should you not set this up with
> fallback compatibles?

I will drop this patch and use the s4 and g12a compatible strings.

>
> Cheers,
> Conor.
>
> > - description: Everything-Else power domain UART controller on G12A SoCs
> > items:
> > - const: amlogic,meson-g12a-uart
> > --
> > 2.41.0
> >

2023-06-18 19:24:29

by Conor Dooley

[permalink] [raw]
Subject: Re: [PATCH 4/6] dt-bindings: serial: amlogic, meson-uart: support T7

On Sun, Jun 18, 2023 at 06:37:40PM +0100, Lucas Tanure wrote:
> On Thu, Jun 15, 2023 at 10:25 PM Conor Dooley <[email protected]> wrote:
> >
> > On Thu, Jun 15, 2023 at 07:29:36PM +0100, Lucas Tanure wrote:
> > > Add serial bindings support menson T7 SoC family.
> > >
> > > Signed-off-by: Lucas Tanure <[email protected]>
> > > ---
> > > Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml | 1 +
> > > 1 file changed, 1 insertion(+)
> > >
> > > diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
> > > index 01ec45b3b406..01b01f8840ea 100644
> > > --- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
> > > +++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
> > > @@ -46,6 +46,7 @@ properties:
> > > - amlogic,meson8b-uart
> > > - amlogic,meson-gx-uart
> > > - amlogic,meson-s4-uart
> > > + - amlogic,meson-t7-uart
> >
> > | diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
> > | index 2501db5a7aaf..0208f9a6ba7e 100644
> > | --- a/drivers/tty/serial/meson_uart.c
> > | +++ b/drivers/tty/serial/meson_uart.c
> > | @@ -796,6 +796,10 @@ static const struct of_device_id meson_uart_dt_match[] = {
> > | .compatible = "amlogic,meson-s4-uart",
> > | .data = (void *)&meson_g12a_uart_data,
> > | },
> > | + {
> > | + .compatible = "amlogic,meson-t7-uart",
> > | + .data = (void *)&meson_g12a_uart_data,
> > | + },
> > | { /* sentinel */ },
> > | };
> > | MODULE_DEVICE_TABLE(of, meson_uart_dt_match);
> >
> > You're adding another element to this enum, but the driver change
> > implies compatibility with the s4 uart. Should you not set this up with
> > fallback compatibles?
>
> I will drop this patch and use the s4 and g12a compatible strings.

You still need to add a compatible for the t7, just let it fall back to
one of the others. Eg:
compatible = "amlogic,meson-t7-uart", "amlogic,meson-s4-uart";

Cheers,
Conor.


Attachments:
(No filename) (2.13 kB)
signature.asc (235.00 B)
Download all attachments