diff mbox series

[1/3] dt-bindings: serial: amlogic,meson-uart: add amlogic,uart-fifosize property

Message ID 20210315083459.359773-2-narmstrong@baylibre.com
State Superseded
Headers show
Series tty: serial: meson: add amlogic,uart-fifosize property | expand

Commit Message

Neil Armstrong March 15, 2021, 8:34 a.m. UTC
On most of the Amlogic SoCs, the first UART controller in the "Everything-Else"
power domain has 128bytes of RX & TX FIFO, so add an optional property to describe
a different FIFO size from the other ports (64bytes).

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
 .../devicetree/bindings/serial/amlogic,meson-uart.yaml      | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Martin Blumenstingl March 23, 2021, 9:33 p.m. UTC | #1
Hi Neil,

On Mon, Mar 15, 2021 at 9:37 AM Neil Armstrong <narmstrong@baylibre.com> wrote:
>

> On most of the Amlogic SoCs, the first UART controller in the "Everything-Else"

> power domain has 128bytes of RX & TX FIFO, so add an optional property to describe

do we still need wrapping of long lines in commit messages?
if so I think the line above is too long

> a different FIFO size from the other ports (64bytes).

>

> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>

Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>


one additional note below

> ---

>  .../devicetree/bindings/serial/amlogic,meson-uart.yaml      | 6 ++++++

>  1 file changed, 6 insertions(+)

>

> diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml

> index 75ebc9952a99..e0a742112783 100644

> --- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml

> +++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml

> @@ -55,6 +55,12 @@ properties:

>        - const: pclk

>        - const: baud

>

> +

> +  amlogic,uart-fifosize:

> +    description: The fifo size supported by the UART channel.

> +    $ref: /schemas/types.yaml#/definitions/uint32

> +    enum: [64, 128]

I personally think this is generic enough to be described as fifo-size
(as it's done in Documentation/devicetree/bindings/serial/8250.yaml)
let's wait and hear what Rob thinks


Best regards,
Martin
Rob Herring (Arm) March 24, 2021, 5:40 p.m. UTC | #2
On Tue, Mar 23, 2021 at 10:33:15PM +0100, Martin Blumenstingl wrote:
>  Hi Neil,

> 

> On Mon, Mar 15, 2021 at 9:37 AM Neil Armstrong <narmstrong@baylibre.com> wrote:

> >

> > On most of the Amlogic SoCs, the first UART controller in the "Everything-Else"

> > power domain has 128bytes of RX & TX FIFO, so add an optional property to describe

> do we still need wrapping of long lines in commit messages?

> if so I think the line above is too long

> 

> > a different FIFO size from the other ports (64bytes).

> >

> > Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>

> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

> 

> one additional note below

> 

> > ---

> >  .../devicetree/bindings/serial/amlogic,meson-uart.yaml      | 6 ++++++

> >  1 file changed, 6 insertions(+)

> >

> > diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml

> > index 75ebc9952a99..e0a742112783 100644

> > --- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml

> > +++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml

> > @@ -55,6 +55,12 @@ properties:

> >        - const: pclk

> >        - const: baud

> >

> > +

> > +  amlogic,uart-fifosize:

> > +    description: The fifo size supported by the UART channel.

> > +    $ref: /schemas/types.yaml#/definitions/uint32

> > +    enum: [64, 128]

> I personally think this is generic enough to be described as fifo-size

> (as it's done in Documentation/devicetree/bindings/serial/8250.yaml)

> let's wait and hear what Rob thinks


Yes.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
index 75ebc9952a99..e0a742112783 100644
--- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
+++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
@@ -55,6 +55,12 @@  properties:
       - const: pclk
       - const: baud
 
+
+  amlogic,uart-fifosize:
+    description: The fifo size supported by the UART channel.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [64, 128]
+
 required:
   - compatible
   - reg