2023-05-04 19:11:07

by Stanislav Jakubek

[permalink] [raw]
Subject: [PATCH] dt-bindings: misc: brcm,kona-smc: convert to YAML

Convert Broadcom Kona family Secure Monitor bounce buffer bindings
to DT schema.

Change during conversion:
- add used, but previously undocumented SoC-specific compatibles

Signed-off-by: Stanislav Jakubek <[email protected]>
---
.../bindings/misc/brcm,kona-smc.txt | 15 -------
.../bindings/misc/brcm,kona-smc.yaml | 44 +++++++++++++++++++
2 files changed, 44 insertions(+), 15 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/misc/brcm,kona-smc.txt
create mode 100644 Documentation/devicetree/bindings/misc/brcm,kona-smc.yaml

diff --git a/Documentation/devicetree/bindings/misc/brcm,kona-smc.txt b/Documentation/devicetree/bindings/misc/brcm,kona-smc.txt
deleted file mode 100644
index 05b47232ed9e..000000000000
--- a/Documentation/devicetree/bindings/misc/brcm,kona-smc.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-Broadcom Secure Monitor Bounce buffer
------------------------------------------------------
-This binding defines the location of the bounce buffer
-used for non-secure to secure communications.
-
-Required properties:
-- compatible : "brcm,kona-smc"
-- DEPRECATED: compatible : "bcm,kona-smc"
-- reg : Location and size of bounce buffer
-
-Example:
- smc@3404c000 {
- compatible = "brcm,bcm11351-smc", "brcm,kona-smc";
- reg = <0x3404c000 0x400>; //1 KiB in SRAM
- };
diff --git a/Documentation/devicetree/bindings/misc/brcm,kona-smc.yaml b/Documentation/devicetree/bindings/misc/brcm,kona-smc.yaml
new file mode 100644
index 000000000000..ba0312a20083
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/brcm,kona-smc.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/misc/brcm,kona-smc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom Kona family Secure Monitor bounce buffer
+
+description:
+ A bounce buffer used for non-secure to secure communications.
+
+maintainers:
+ - Florian Fainelli <[email protected]>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - brcm,bcm11351-smc
+ - brcm,bcm21664-smc
+ - brcm,bcm23550-smc
+ - const: brcm,kona-smc
+ - items:
+ - const: bcm,bcm11351-smc
+ - const: bcm,kona-smc
+ deprecated: true
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ smc@3404c000 {
+ compatible = "brcm,bcm11351-smc", "brcm,kona-smc";
+ reg = <0x3404c000 0x400>; /* 1 KiB in SRAM */
+ };
+...
--
2.25.1


2023-05-05 07:16:08

by Krzysztof Kozlowski

[permalink] [raw]
Subject: Re: [PATCH] dt-bindings: misc: brcm,kona-smc: convert to YAML

On 04/05/2023 21:02, Stanislav Jakubek wrote:
> Convert Broadcom Kona family Secure Monitor bounce buffer bindings
> to DT schema.
>
> Change during conversion:
> - add used, but previously undocumented SoC-specific compatibles
>
> Signed-off-by: Stanislav Jakubek <[email protected]>
> ---
> .../bindings/misc/brcm,kona-smc.txt | 15 -------
> .../bindings/misc/brcm,kona-smc.yaml | 44 +++++++++++++++++++

Please put SMC stuff in firmware subdirectory.

> 2 files changed, 44 insertions(+), 15 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/misc/brcm,kona-smc.txt
> create mode 100644 Documentation/devicetree/bindings/misc/brcm,kona-smc.yaml
>
> diff --git a/Documentation/devicetree/bindings/misc/brcm,kona-smc.txt b/Documentation/devicetree/bindings/misc/brcm,kona-smc.txt
> deleted file mode 100644
> index 05b47232ed9e..000000000000
> --- a/Documentation/devicetree/bindings/misc/brcm,kona-smc.txt
> +++ /dev/null
> @@ -1,15 +0,0 @@
> -Broadcom Secure Monitor Bounce buffer
> ------------------------------------------------------
> -This binding defines the location of the bounce buffer
> -used for non-secure to secure communications.
> -
> -Required properties:
> -- compatible : "brcm,kona-smc"
> -- DEPRECATED: compatible : "bcm,kona-smc"
> -- reg : Location and size of bounce buffer
> -
> -Example:
> - smc@3404c000 {
> - compatible = "brcm,bcm11351-smc", "brcm,kona-smc";
> - reg = <0x3404c000 0x400>; //1 KiB in SRAM
> - };
> diff --git a/Documentation/devicetree/bindings/misc/brcm,kona-smc.yaml b/Documentation/devicetree/bindings/misc/brcm,kona-smc.yaml
> new file mode 100644
> index 000000000000..ba0312a20083
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/misc/brcm,kona-smc.yaml
> @@ -0,0 +1,44 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/misc/brcm,kona-smc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Broadcom Kona family Secure Monitor bounce buffer
> +
> +description:
> + A bounce buffer used for non-secure to secure communications.
> +
> +maintainers:
> + - Florian Fainelli <[email protected]>
> +
> +properties:
> + compatible:
> + oneOf:
> + - items:
> + - enum:
> + - brcm,bcm11351-smc
> + - brcm,bcm21664-smc
> + - brcm,bcm23550-smc
> + - const: brcm,kona-smc
> + - items:
> + - const: bcm,bcm11351-smc
> + - const: bcm,kona-smc
> + deprecated: true

That's not correct. You deprecate the same set as you allow before. I
think you wanted to deprecated kona-smc alone.

> +
> + reg:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg

Best regards,
Krzysztof

2023-05-05 07:31:24

by Stanislav Jakubek

[permalink] [raw]
Subject: Re: [PATCH] dt-bindings: misc: brcm,kona-smc: convert to YAML

On Fri, May 05, 2023 at 08:49:55AM +0200, Krzysztof Kozlowski wrote:
> On 04/05/2023 21:02, Stanislav Jakubek wrote:
> > Convert Broadcom Kona family Secure Monitor bounce buffer bindings
> > to DT schema.
> >
> > Change during conversion:
> > - add used, but previously undocumented SoC-specific compatibles
> >
> > Signed-off-by: Stanislav Jakubek <[email protected]>
> > ---
> > .../bindings/misc/brcm,kona-smc.txt | 15 -------
> > .../bindings/misc/brcm,kona-smc.yaml | 44 +++++++++++++++++++
>
> Please put SMC stuff in firmware subdirectory.

Ok, will move it there in V2.

>
> > 2 files changed, 44 insertions(+), 15 deletions(-)
> > delete mode 100644 Documentation/devicetree/bindings/misc/brcm,kona-smc.txt
> > create mode 100644 Documentation/devicetree/bindings/misc/brcm,kona-smc.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/misc/brcm,kona-smc.txt b/Documentation/devicetree/bindings/misc/brcm,kona-smc.txt
> > deleted file mode 100644
> > index 05b47232ed9e..000000000000
> > --- a/Documentation/devicetree/bindings/misc/brcm,kona-smc.txt
> > +++ /dev/null
> > @@ -1,15 +0,0 @@
> > -Broadcom Secure Monitor Bounce buffer
> > ------------------------------------------------------
> > -This binding defines the location of the bounce buffer
> > -used for non-secure to secure communications.
> > -
> > -Required properties:
> > -- compatible : "brcm,kona-smc"
> > -- DEPRECATED: compatible : "bcm,kona-smc"
> > -- reg : Location and size of bounce buffer
> > -
> > -Example:
> > - smc@3404c000 {
> > - compatible = "brcm,bcm11351-smc", "brcm,kona-smc";
> > - reg = <0x3404c000 0x400>; //1 KiB in SRAM
> > - };
> > diff --git a/Documentation/devicetree/bindings/misc/brcm,kona-smc.yaml b/Documentation/devicetree/bindings/misc/brcm,kona-smc.yaml
> > new file mode 100644
> > index 000000000000..ba0312a20083
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/misc/brcm,kona-smc.yaml
> > @@ -0,0 +1,44 @@
> > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/misc/brcm,kona-smc.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Broadcom Kona family Secure Monitor bounce buffer
> > +
> > +description:
> > + A bounce buffer used for non-secure to secure communications.
> > +
> > +maintainers:
> > + - Florian Fainelli <[email protected]>
> > +
> > +properties:
> > + compatible:
> > + oneOf:
> > + - items:
> > + - enum:
> > + - brcm,bcm11351-smc
> > + - brcm,bcm21664-smc
> > + - brcm,bcm23550-smc
> > + - const: brcm,kona-smc
> > + - items:
> > + - const: bcm,bcm11351-smc
> > + - const: bcm,kona-smc
> > + deprecated: true
>
> That's not correct. You deprecate the same set as you allow before. I
> think you wanted to deprecated kona-smc alone.

What I'm trying to do here is to deprecate both compatibles with the
"bcm" vendor prefix, as these were initially introduced in [1]. bcm11351 is the
only one that ever had the "bcm" prefix, both bcm21664 [2] and bcm23550 [3]
were introduced with the "brcm" prefix (though they were never documented).

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=7f6c62e2695bcb1547afdeb4ad3bcdf8c610be2c
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=2eba905e860f8aed5f2743b45259bb2e92548a55
[3] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=fcd4138653f049c8fa45b48dc5f2806ced68e304

Regards,
Stanislav

>
> > +
> > + reg:
> > + maxItems: 1
> > +
> > +required:
> > + - compatible
> > + - reg
>
> Best regards,
> Krzysztof
>

2023-05-05 10:40:40

by Krzysztof Kozlowski

[permalink] [raw]
Subject: Re: [PATCH] dt-bindings: misc: brcm,kona-smc: convert to YAML

On 05/05/2023 09:18, Stanislav Jakubek wrote:

>>> + - items:
>>> + - enum:
>>> + - brcm,bcm11351-smc
>>> + - brcm,bcm21664-smc
>>> + - brcm,bcm23550-smc
>>> + - const: brcm,kona-smc
>>> + - items:
>>> + - const: bcm,bcm11351-smc
>>> + - const: bcm,kona-smc
>>> + deprecated: true
>>
>> That's not correct. You deprecate the same set as you allow before. I
>> think you wanted to deprecated kona-smc alone.
>
> What I'm trying to do here is to deprecate both compatibles with the
> "bcm" vendor prefix, as these were initially introduced in [1]. bcm11351 is the
> only one that ever had the "bcm" prefix, both bcm21664 [2] and bcm23550 [3]
> were introduced with the "brcm" prefix (though they were never documented).
>
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=7f6c62e2695bcb1547afdeb4ad3bcdf8c610be2c
> [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=2eba905e860f8aed5f2743b45259bb2e92548a55
> [3] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=fcd4138653f049c8fa45b48dc5f2806ced68e304

Ah, right, I missed the difference in prefix. I propose to just drop it.
It was deprecated 10 years ago!

Best regards,
Krzysztof