[PATCH i2c-next v3 0/6] i2c: Incremental fixes for Mellanox BlueField I2C

[PATCH i2c-next v3 0/6] i2c: Incremental fixes for Mellanox BlueField I2C

[Khalil Blaiech]

This set of fixes tends to complement the upstream effort of the
driver code and aims to address the following issues:
  - Convert the DT file to a YAML schema to be consistent with the
  latest kernel releases.
  - Fix build issues reproted by the kernel test robot.
  - Apply a couple of changes to the driver code to include bug fixes.
  - Keep the MAINTAINER info up-to-date.
---
v2->v3:
	- Address dtschema/dt warning/errors by removing
        'additionalProperties: false' line.
v1->v2:
	- Address yamllint and dtschema/dt warning/errors.
	- Dual license the YAML schema by adding BSD-2-Clause.
---

Khalil Blaiech (6):
  i2c: mlxbf: Add CONFIG_ACPI to guard ACPI function call
  i2c: mlxbf: Fix resrticted cast warning of sparse
  i2c: mlxbf: Remove unecessary wrapper functions
  i2c: mlxbf: Update reference clock frequency
  i2c: mlxbf: Update author and maintainer email info
  dt-bindings: i2c: mellanox,i2c-mlxbf: convert txt to YAML schema

 .../devicetree/bindings/i2c/mellanox,i2c-mlxbf.txt |  42 -----
 .../bindings/i2c/mellanox,i2c-mlxbf.yaml           |  78 ++++++++
 MAINTAINERS                                        |   3 +-
 drivers/i2c/busses/i2c-mlxbf.c                     | 204 +++++++++------------
 4 files changed, 166 insertions(+), 161 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.txt
 create mode 100644 Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.yaml

-- 
2.1.2

[PATCH i2c-next v3 6/6] dt-bindings: i2c: mellanox,i2c-mlxbf: convert txt to YAML schema

[Khalil Blaiech]

Write the devicetree binding text file associated with
the Mellanox BlueField I2C controller in schema file,
JSON compatible subset of YAML. Besides, add an entry
within MAINTAINERS file.

Signed-off-by: Khalil Blaiech <kblaiech@nvidia.com>
---
 .../devicetree/bindings/i2c/mellanox,i2c-mlxbf.txt | 42 ------------
 .../bindings/i2c/mellanox,i2c-mlxbf.yaml           | 78 ++++++++++++++++++++++
 MAINTAINERS                                        |  1 +
 3 files changed, 79 insertions(+), 42 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.txt
 create mode 100644 Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.yaml

diff --git a/Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.txt b/Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.txt
deleted file mode 100644
index 566ea86..0000000
--- a/Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.txt
+++ /dev/null
@@ -1,42 +0,0 @@
-Device tree configuration for the Mellanox I2C SMBus on BlueField SoCs
-
-Required Properties:
-
-- compatible : should be "mellanox,i2c-mlxbf1" or "mellanox,i2c-mlxbf2".
-
-- reg : address offset and length of the device registers. The
-	registers consist of the following set of resources:
-		1) Smbus block registers.
-		2) Cause master registers.
-		3) Cause slave registers.
-		4) Cause coalesce registers (if compatible isn't set
-		   to "mellanox,i2c-mlxbf1").
-
-- interrupts : interrupt number.
-
-Optional Properties:
-
-- clock-frequency : bus frequency used to configure timing registers;
-			allowed values are 100000, 400000 and 1000000;
-			those are expressed in Hz. Default is 100000.
-
-Example:
-
-i2c@2804000 {
-	compatible = "mellanox,i2c-mlxbf1";
-	reg =	<0x02804000 0x800>,
-		<0x02801200 0x020>,
-		<0x02801260 0x020>;
-	interrupts = <57>;
-	clock-frequency = <100000>;
-};
-
-i2c@2808800 {
-	compatible = "mellanox,i2c-mlxbf2";
-	reg =	<0x02808800 0x600>,
-	        <0x02808e00 0x020>,
-		<0x02808e20 0x020>,
-		<0x02808e40 0x010>;
-	interrupts = <57>;
-	clock-frequency = <400000>;
-};
diff --git a/Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.yaml b/Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.yaml
new file mode 100644
index 0000000..d2b401d
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.yaml
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/i2c/mellanox,i2c-mlxbf.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mellanox I2C SMBus on BlueField SoCs
+
+maintainers:
+  - Khalil Blaiech <kblaiech@nvidia.com>
+
+allOf:
+  - $ref: /schemas/i2c/i2c-controller.yaml#
+
+properties:
+  compatible:
+    enum:
+      - mellanox,i2c-mlxbf1
+      - mellanox,i2c-mlxbf2
+
+  reg:
+    minItems: 3
+    maxItems: 4
+    items:
+      - description: Smbus block registers
+      - description: Cause master registers
+      - description: Cause slave registers
+      - description: Cause coalesce registers
+
+  interrupts:
+    maxItems: 1
+
+  clock-frequency:
+    enum: [ 100000, 400000, 1000000 ]
+    description:
+      bus frequency used to configure timing registers;
+      The frequency is expressed in Hz. Default is 100000.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+unevaluatedProperties: false
+
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - mellanox,i2c-mlxbf1
+
+then:
+  properties:
+    reg:
+      maxItems: 3
+
+examples:
+  - |
+    i2c@2804000 {
+        compatible = "mellanox,i2c-mlxbf1";
+        reg = <0x02804000 0x800>,
+              <0x02801200 0x020>,
+              <0x02801260 0x020>;
+        interrupts = <57>;
+        clock-frequency = <100000>;
+    };
+
+  - |
+    i2c@2808800 {
+        compatible = "mellanox,i2c-mlxbf2";
+        reg = <0x02808800 0x600>,
+              <0x02808e00 0x020>,
+              <0x02808e20 0x020>,
+              <0x02808e40 0x010>;
+        interrupts = <57>;
+        clock-frequency = <400000>;
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 54de08f..7dd2725 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11166,6 +11166,7 @@ MELLANOX BLUEFIELD I2C DRIVER
 M:	Khalil Blaiech <kblaiech@nvidia.com>
 L:	linux-i2c@vger.kernel.org
 S:	Supported
+F:	Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.yaml
 F:	drivers/i2c/busses/i2c-mlxbf.c
 
 MELLANOX ETHERNET DRIVER (mlx4_en)
-- 
2.1.2

Re: [PATCH i2c-next v3 6/6] dt-bindings: i2c: mellanox,i2c-mlxbf: convert txt to YAML schema

[Rob Herring]

On Fri, 06 Nov 2020 12:06:30 -0500, Khalil Blaiech wrote:
> Write the devicetree binding text file associated with
> the Mellanox BlueField I2C controller in schema file,
> JSON compatible subset of YAML. Besides, add an entry
> within MAINTAINERS file.
> 
> Signed-off-by: Khalil Blaiech <kblaiech@nvidia.com>
> ---
>  .../devicetree/bindings/i2c/mellanox,i2c-mlxbf.txt | 42 ------------
>  .../bindings/i2c/mellanox,i2c-mlxbf.yaml           | 78 ++++++++++++++++++++++
>  MAINTAINERS                                        |  1 +
>  3 files changed, 79 insertions(+), 42 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.txt
>  create mode 100644 Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.yaml
> 

Reviewed-by: Rob Herring <robh@kernel.org>

RE: [PATCH i2c-next v3 6/6] dt-bindings: i2c: mellanox,i2c-mlxbf: convert txt to YAML schema

[Khalil Blaiech]

> 
> On Fri, 06 Nov 2020 12:06:30 -0500, Khalil Blaiech wrote:
> > Write the devicetree binding text file associated with
> > the Mellanox BlueField I2C controller in schema file,
> > JSON compatible subset of YAML. Besides, add an entry
> > within MAINTAINERS file.
> >
> > Signed-off-by: Khalil Blaiech <kblaiech@nvidia.com>
> > ---
> >  .../devicetree/bindings/i2c/mellanox,i2c-mlxbf.txt | 42 ------------
> >  .../bindings/i2c/mellanox,i2c-mlxbf.yaml           | 78
> ++++++++++++++++++++++
> >  MAINTAINERS                                        |  1 +
> >  3 files changed, 79 insertions(+), 42 deletions(-)
> >  delete mode 100644
> Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.txt
> >  create mode 100644
> Documentation/devicetree/bindings/i2c/mellanox,i2c-mlxbf.yaml
> >
> 
> Reviewed-by: Rob Herring <robh@kernel.org>

Rob, thank you for having taken the time to review the changes.