* [PATCH v7 3/4] dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
@ 2023-05-30 23:54 ` Chris Packham
0 siblings, 0 replies; 39+ messages in thread
From: Chris Packham @ 2023-05-30 23:54 UTC (permalink / raw)
To: miquel.raynal, richard, vigneshr, robh+dt,
krzysztof.kozlowski+dt, conor+dt, andrew, gregory.clement,
sebastian.hesselbarth
Cc: linux-mtd, devicetree, linux-kernel, linux-arm-kernel, enachman,
Vadym Kochan, Chris Packham
From: Vadym Kochan <vadym.kochan@plvision.eu>
Switch the DT binding to a YAML schema to enable the DT validation.
Dropped deprecated compatibles and properties described in txt file.
Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
---
Notes:
Changes in v7:
- Restore "label" and "partitions" properties (should be picked up via
nand-controller.yaml but aren't)
- Add/restore nand-on-flash-bbt and nand-ecc-mode which aren't covered
by nand-controller.yaml.
- Use "unevalautedProperties: false"
- Corrections for clock-names, dma-names, nand-rb and nand-ecc-strength
- Add pxa3xx-nand-controller example
Changes in v6:
- remove properties covered by nand-controller.yaml
- add example using armada-8k compatible
earlier changes:
v5:
1) Get back "label" and "partitions" properties but without
ref to the "partition.yaml" which was wrongly used.
2) Add "additionalProperties: false" for nand@ because all possible
properties are described.
v4:
1) Remove "label" and "partitions" properties
2) Use 2 clocks for A7K/8K platform which is a requirement
v3:
1) Remove txt version from the MAINTAINERS list
2) Use enum for some of compatible strings
3) Drop:
#address-cells
#size-cells:
as they are inherited from the nand-controller.yaml
4) Add restriction to use 2 clocks for A8K SoC
5) Dropped description for clock-names and extend it with
minItems: 1
6) Drop description for "dmas"
7) Use "unevalautedProperties: false"
8) Drop quites from yaml refs.
9) Use 4-space indentation for the example section
v2:
1) Fixed warning by yamllint with incorrect indentation for compatible list
.../bindings/mtd/marvell,nand-controller.yaml | 221 ++++++++++++++++++
.../devicetree/bindings/mtd/marvell-nand.txt | 126 ----------
MAINTAINERS | 1 -
3 files changed, 221 insertions(+), 127 deletions(-)
create mode 100644 Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
delete mode 100644 Documentation/devicetree/bindings/mtd/marvell-nand.txt
diff --git a/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
new file mode 100644
index 000000000000..7cd4a2e99343
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
@@ -0,0 +1,221 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/marvell,nand-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell NAND Flash Controller (NFC)
+
+maintainers:
+ - Miquel Raynal <miquel.raynal@bootlin.com>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: marvell,armada-8k-nand-controller
+ - const: marvell,armada370-nand-controller
+ - enum:
+ - marvell,armada370-nand-controller
+ - marvell,pxa3xx-nand-controller
+ - marvell,armada-8k-nand
+ - marvell,armada370-nand
+ - marvell,pxa3xx-nand
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ description:
+ Shall reference the NAND controller clocks, the second one is
+ is only needed for the Armada 7K/8K SoCs
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: core
+ - const: reg
+
+ dmas:
+ maxItems: 1
+
+ dma-names:
+ items:
+ - enum:
+ - rxtx
+ - data
+
+ marvell,system-controller:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: Syscon node that handles NAND controller related registers
+
+patternProperties:
+ "^nand@[0-3]$":
+ type: object
+ unevaluatedProperties: false
+ properties:
+ reg:
+ minimum: 0
+ maximum: 3
+
+ nand-rb:
+ minItems: 1
+ maxItems: 1
+
+ nand-ecc-step-size:
+ const: 512
+
+ nand-ecc-strength:
+ enum: [1, 4, 8, 12, 16]
+
+ nand-on-flash-bbt:
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ nand-ecc-mode:
+ const: hw
+
+ label:
+ $ref: /schemas/types.yaml#/definitions/string
+
+ partitions:
+ type: object
+
+ marvell,nand-keep-config:
+ description: |
+ Orders the driver not to take the timings from the core and
+ leaving them completely untouched. Bootloader timings will then
+ be used.
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ marvell,nand-enable-arbiter:
+ description: |
+ To enable the arbiter, all boards blindly used it,
+ this bit was set by the bootloader for many boards and even if
+ it is marked reserved in several datasheets, it might be needed to set
+ it (otherwise it is harmless).
+ $ref: /schemas/types.yaml#/definitions/flag
+ deprecated: true
+
+ additionalProperties: false
+
+ required:
+ - reg
+ - nand-rb
+
+allOf:
+ - $ref: nand-controller.yaml
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: marvell,pxa3xx-nand-controller
+ then:
+ required:
+ - dmas
+ - dma-names
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: marvell,armada-8k-nand-controller
+ then:
+ properties:
+ clocks:
+ minItems: 2
+
+ clock-names:
+ minItems: 2
+
+ required:
+ - marvell,system-controller
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ nand_controller: nand-controller@d0000 {
+ compatible = "marvell,armada370-nand-controller";
+ reg = <0xd0000 0x54>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&coredivclk 0>;
+
+ nand@0 {
+ reg = <0>;
+ label = "main-storage";
+ nand-rb = <0>;
+ nand-ecc-mode = "hw";
+ marvell,nand-keep-config;
+ nand-on-flash-bbt;
+ nand-ecc-strength = <4>;
+ nand-ecc-step-size = <512>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "Rootfs";
+ reg = <0x00000000 0x40000000>;
+ };
+ };
+ };
+ };
+
+ - |
+ cp0_nand_controller: nand-controller@720000 {
+ compatible = "marvell,armada-8k-nand-controller",
+ "marvell,armada370-nand-controller";
+ reg = <0x720000 0x54>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <115 IRQ_TYPE_LEVEL_HIGH>;
+ clock-names = "core", "reg";
+ clocks = <&cp0_clk 1 2>,
+ <&cp0_clk 1 17>;
+ marvell,system-controller = <&cp0_syscon0>;
+
+ nand@0 {
+ reg = <0>;
+ label = "main-storage";
+ nand-rb = <0>;
+ nand-ecc-mode = "hw";
+ nand-ecc-strength = <8>;
+ nand-ecc-step-size = <512>;
+ };
+ };
+
+ - |
+ nand-controller@43100000 {
+ compatible = "marvell,pxa3xx-nand-controller";
+ reg = <0x43100000 90>;
+ interrupts = <45>;
+ clocks = <&clks 1>;
+ clock-names = "core";
+ dmas = <&pdma 97 3>;
+ dma-names = "data";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ nand@0 {
+ reg = <0>;
+ nand-rb = <0>;
+ nand-ecc-mode = "hw";
+ marvell,nand-keep-config;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mtd/marvell-nand.txt b/Documentation/devicetree/bindings/mtd/marvell-nand.txt
deleted file mode 100644
index a2d9a0f2b683..000000000000
--- a/Documentation/devicetree/bindings/mtd/marvell-nand.txt
+++ /dev/null
@@ -1,126 +0,0 @@
-Marvell NAND Flash Controller (NFC)
-
-Required properties:
-- compatible: can be one of the following:
- * "marvell,armada-8k-nand-controller"
- * "marvell,armada370-nand-controller"
- * "marvell,pxa3xx-nand-controller"
- * "marvell,armada-8k-nand" (deprecated)
- * "marvell,armada370-nand" (deprecated)
- * "marvell,pxa3xx-nand" (deprecated)
- Compatibles marked deprecated support only the old bindings described
- at the bottom.
-- reg: NAND flash controller memory area.
-- #address-cells: shall be set to 1. Encode the NAND CS.
-- #size-cells: shall be set to 0.
-- interrupts: shall define the NAND controller interrupt.
-- clocks: shall reference the NAND controller clocks, the second one is
- is only needed for the Armada 7K/8K SoCs
-- clock-names: mandatory if there is a second clock, in this case there
- should be one clock named "core" and another one named "reg"
-- marvell,system-controller: Set to retrieve the syscon node that handles
- NAND controller related registers (only required with the
- "marvell,armada-8k-nand[-controller]" compatibles).
-
-Optional properties:
-- label: see partition.txt. New platforms shall omit this property.
-- dmas: shall reference DMA channel associated to the NAND controller.
- This property is only used with "marvell,pxa3xx-nand[-controller]"
- compatible strings.
-- dma-names: shall be "rxtx".
- This property is only used with "marvell,pxa3xx-nand[-controller]"
- compatible strings.
-
-Optional children nodes:
-Children nodes represent the available NAND chips.
-
-Required properties:
-- reg: shall contain the native Chip Select ids (0-3).
-- nand-rb: see nand-controller.yaml (0-1).
-
-Optional properties:
-- marvell,nand-keep-config: orders the driver not to take the timings
- from the core and leaving them completely untouched. Bootloader
- timings will then be used.
-- label: MTD name.
-- nand-on-flash-bbt: see nand-controller.yaml.
-- nand-ecc-mode: see nand-controller.yaml. Will use hardware ECC if not specified.
-- nand-ecc-algo: see nand-controller.yaml. This property is essentially useful when
- not using hardware ECC. Howerver, it may be added when using hardware
- ECC for clarification but will be ignored by the driver because ECC
- mode is chosen depending on the page size and the strength required by
- the NAND chip. This value may be overwritten with nand-ecc-strength
- property.
-- nand-ecc-strength: see nand-controller.yaml.
-- nand-ecc-step-size: see nand-controller.yaml. Marvell's NAND flash controller does
- use fixed strength (1-bit for Hamming, 16-bit for BCH), so the actual
- step size will shrink or grow in order to fit the required strength.
- Step sizes are not completely random for all and follow certain
- patterns described in AN-379, "Marvell SoC NFC ECC".
-
-See Documentation/devicetree/bindings/mtd/nand-controller.yaml for more details on
-generic bindings.
-
-
-Example:
-nand_controller: nand-controller@d0000 {
- compatible = "marvell,armada370-nand-controller";
- reg = <0xd0000 0x54>;
- #address-cells = <1>;
- #size-cells = <0>;
- interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&coredivclk 0>;
-
- nand@0 {
- reg = <0>;
- label = "main-storage";
- nand-rb = <0>;
- nand-ecc-mode = "hw";
- marvell,nand-keep-config;
- nand-on-flash-bbt;
- nand-ecc-strength = <4>;
- nand-ecc-step-size = <512>;
-
- partitions {
- compatible = "fixed-partitions";
- #address-cells = <1>;
- #size-cells = <1>;
-
- partition@0 {
- label = "Rootfs";
- reg = <0x00000000 0x40000000>;
- };
- };
- };
-};
-
-
-Note on legacy bindings: One can find, in not-updated device trees,
-bindings slightly different than described above with other properties
-described below as well as the partitions node at the root of a so
-called "nand" node (without clear controller/chip separation).
-
-Legacy properties:
-- marvell,nand-enable-arbiter: To enable the arbiter, all boards blindly
- used it, this bit was set by the bootloader for many boards and even if
- it is marked reserved in several datasheets, it might be needed to set
- it (otherwise it is harmless) so whether or not this property is set,
- the bit is selected by the driver.
-- num-cs: Number of chip-select lines to use, all boards blindly set 1
- to this and for a reason, other values would have failed. The value of
- this property is ignored.
-
-Example:
-
- nand0: nand@43100000 {
- compatible = "marvell,pxa3xx-nand";
- reg = <0x43100000 90>;
- interrupts = <45>;
- dmas = <&pdma 97 0>;
- dma-names = "rxtx";
- #address-cells = <1>;
- marvell,nand-keep-config;
- marvell,nand-enable-arbiter;
- num-cs = <1>;
- /* Partitions (optional) */
- };
diff --git a/MAINTAINERS b/MAINTAINERS
index 250518fc70ff..e70dbc50a74e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12534,7 +12534,6 @@ MARVELL NAND CONTROLLER DRIVER
M: Miquel Raynal <miquel.raynal@bootlin.com>
L: linux-mtd@lists.infradead.org
S: Maintained
-F: Documentation/devicetree/bindings/mtd/marvell-nand.txt
F: drivers/mtd/nand/raw/marvell_nand.c
MARVELL OCTEON ENDPOINT DRIVER
--
2.40.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 39+ messages in thread* [PATCH v7 3/4] dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
@ 2023-05-30 23:54 ` Chris Packham
0 siblings, 0 replies; 39+ messages in thread
From: Chris Packham @ 2023-05-30 23:54 UTC (permalink / raw)
To: miquel.raynal, richard, vigneshr, robh+dt,
krzysztof.kozlowski+dt, conor+dt, andrew, gregory.clement,
sebastian.hesselbarth
Cc: linux-mtd, devicetree, linux-kernel, linux-arm-kernel, enachman,
Vadym Kochan, Chris Packham
From: Vadym Kochan <vadym.kochan@plvision.eu>
Switch the DT binding to a YAML schema to enable the DT validation.
Dropped deprecated compatibles and properties described in txt file.
Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
---
Notes:
Changes in v7:
- Restore "label" and "partitions" properties (should be picked up via
nand-controller.yaml but aren't)
- Add/restore nand-on-flash-bbt and nand-ecc-mode which aren't covered
by nand-controller.yaml.
- Use "unevalautedProperties: false"
- Corrections for clock-names, dma-names, nand-rb and nand-ecc-strength
- Add pxa3xx-nand-controller example
Changes in v6:
- remove properties covered by nand-controller.yaml
- add example using armada-8k compatible
earlier changes:
v5:
1) Get back "label" and "partitions" properties but without
ref to the "partition.yaml" which was wrongly used.
2) Add "additionalProperties: false" for nand@ because all possible
properties are described.
v4:
1) Remove "label" and "partitions" properties
2) Use 2 clocks for A7K/8K platform which is a requirement
v3:
1) Remove txt version from the MAINTAINERS list
2) Use enum for some of compatible strings
3) Drop:
#address-cells
#size-cells:
as they are inherited from the nand-controller.yaml
4) Add restriction to use 2 clocks for A8K SoC
5) Dropped description for clock-names and extend it with
minItems: 1
6) Drop description for "dmas"
7) Use "unevalautedProperties: false"
8) Drop quites from yaml refs.
9) Use 4-space indentation for the example section
v2:
1) Fixed warning by yamllint with incorrect indentation for compatible list
.../bindings/mtd/marvell,nand-controller.yaml | 221 ++++++++++++++++++
.../devicetree/bindings/mtd/marvell-nand.txt | 126 ----------
MAINTAINERS | 1 -
3 files changed, 221 insertions(+), 127 deletions(-)
create mode 100644 Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
delete mode 100644 Documentation/devicetree/bindings/mtd/marvell-nand.txt
diff --git a/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
new file mode 100644
index 000000000000..7cd4a2e99343
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
@@ -0,0 +1,221 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/marvell,nand-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell NAND Flash Controller (NFC)
+
+maintainers:
+ - Miquel Raynal <miquel.raynal@bootlin.com>
+
+properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: marvell,armada-8k-nand-controller
+ - const: marvell,armada370-nand-controller
+ - enum:
+ - marvell,armada370-nand-controller
+ - marvell,pxa3xx-nand-controller
+ - marvell,armada-8k-nand
+ - marvell,armada370-nand
+ - marvell,pxa3xx-nand
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ description:
+ Shall reference the NAND controller clocks, the second one is
+ is only needed for the Armada 7K/8K SoCs
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: core
+ - const: reg
+
+ dmas:
+ maxItems: 1
+
+ dma-names:
+ items:
+ - enum:
+ - rxtx
+ - data
+
+ marvell,system-controller:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: Syscon node that handles NAND controller related registers
+
+patternProperties:
+ "^nand@[0-3]$":
+ type: object
+ unevaluatedProperties: false
+ properties:
+ reg:
+ minimum: 0
+ maximum: 3
+
+ nand-rb:
+ minItems: 1
+ maxItems: 1
+
+ nand-ecc-step-size:
+ const: 512
+
+ nand-ecc-strength:
+ enum: [1, 4, 8, 12, 16]
+
+ nand-on-flash-bbt:
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ nand-ecc-mode:
+ const: hw
+
+ label:
+ $ref: /schemas/types.yaml#/definitions/string
+
+ partitions:
+ type: object
+
+ marvell,nand-keep-config:
+ description: |
+ Orders the driver not to take the timings from the core and
+ leaving them completely untouched. Bootloader timings will then
+ be used.
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ marvell,nand-enable-arbiter:
+ description: |
+ To enable the arbiter, all boards blindly used it,
+ this bit was set by the bootloader for many boards and even if
+ it is marked reserved in several datasheets, it might be needed to set
+ it (otherwise it is harmless).
+ $ref: /schemas/types.yaml#/definitions/flag
+ deprecated: true
+
+ additionalProperties: false
+
+ required:
+ - reg
+ - nand-rb
+
+allOf:
+ - $ref: nand-controller.yaml
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: marvell,pxa3xx-nand-controller
+ then:
+ required:
+ - dmas
+ - dma-names
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: marvell,armada-8k-nand-controller
+ then:
+ properties:
+ clocks:
+ minItems: 2
+
+ clock-names:
+ minItems: 2
+
+ required:
+ - marvell,system-controller
+
+unevaluatedProperties: false
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ nand_controller: nand-controller@d0000 {
+ compatible = "marvell,armada370-nand-controller";
+ reg = <0xd0000 0x54>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&coredivclk 0>;
+
+ nand@0 {
+ reg = <0>;
+ label = "main-storage";
+ nand-rb = <0>;
+ nand-ecc-mode = "hw";
+ marvell,nand-keep-config;
+ nand-on-flash-bbt;
+ nand-ecc-strength = <4>;
+ nand-ecc-step-size = <512>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "Rootfs";
+ reg = <0x00000000 0x40000000>;
+ };
+ };
+ };
+ };
+
+ - |
+ cp0_nand_controller: nand-controller@720000 {
+ compatible = "marvell,armada-8k-nand-controller",
+ "marvell,armada370-nand-controller";
+ reg = <0x720000 0x54>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <115 IRQ_TYPE_LEVEL_HIGH>;
+ clock-names = "core", "reg";
+ clocks = <&cp0_clk 1 2>,
+ <&cp0_clk 1 17>;
+ marvell,system-controller = <&cp0_syscon0>;
+
+ nand@0 {
+ reg = <0>;
+ label = "main-storage";
+ nand-rb = <0>;
+ nand-ecc-mode = "hw";
+ nand-ecc-strength = <8>;
+ nand-ecc-step-size = <512>;
+ };
+ };
+
+ - |
+ nand-controller@43100000 {
+ compatible = "marvell,pxa3xx-nand-controller";
+ reg = <0x43100000 90>;
+ interrupts = <45>;
+ clocks = <&clks 1>;
+ clock-names = "core";
+ dmas = <&pdma 97 3>;
+ dma-names = "data";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ nand@0 {
+ reg = <0>;
+ nand-rb = <0>;
+ nand-ecc-mode = "hw";
+ marvell,nand-keep-config;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/mtd/marvell-nand.txt b/Documentation/devicetree/bindings/mtd/marvell-nand.txt
deleted file mode 100644
index a2d9a0f2b683..000000000000
--- a/Documentation/devicetree/bindings/mtd/marvell-nand.txt
+++ /dev/null
@@ -1,126 +0,0 @@
-Marvell NAND Flash Controller (NFC)
-
-Required properties:
-- compatible: can be one of the following:
- * "marvell,armada-8k-nand-controller"
- * "marvell,armada370-nand-controller"
- * "marvell,pxa3xx-nand-controller"
- * "marvell,armada-8k-nand" (deprecated)
- * "marvell,armada370-nand" (deprecated)
- * "marvell,pxa3xx-nand" (deprecated)
- Compatibles marked deprecated support only the old bindings described
- at the bottom.
-- reg: NAND flash controller memory area.
-- #address-cells: shall be set to 1. Encode the NAND CS.
-- #size-cells: shall be set to 0.
-- interrupts: shall define the NAND controller interrupt.
-- clocks: shall reference the NAND controller clocks, the second one is
- is only needed for the Armada 7K/8K SoCs
-- clock-names: mandatory if there is a second clock, in this case there
- should be one clock named "core" and another one named "reg"
-- marvell,system-controller: Set to retrieve the syscon node that handles
- NAND controller related registers (only required with the
- "marvell,armada-8k-nand[-controller]" compatibles).
-
-Optional properties:
-- label: see partition.txt. New platforms shall omit this property.
-- dmas: shall reference DMA channel associated to the NAND controller.
- This property is only used with "marvell,pxa3xx-nand[-controller]"
- compatible strings.
-- dma-names: shall be "rxtx".
- This property is only used with "marvell,pxa3xx-nand[-controller]"
- compatible strings.
-
-Optional children nodes:
-Children nodes represent the available NAND chips.
-
-Required properties:
-- reg: shall contain the native Chip Select ids (0-3).
-- nand-rb: see nand-controller.yaml (0-1).
-
-Optional properties:
-- marvell,nand-keep-config: orders the driver not to take the timings
- from the core and leaving them completely untouched. Bootloader
- timings will then be used.
-- label: MTD name.
-- nand-on-flash-bbt: see nand-controller.yaml.
-- nand-ecc-mode: see nand-controller.yaml. Will use hardware ECC if not specified.
-- nand-ecc-algo: see nand-controller.yaml. This property is essentially useful when
- not using hardware ECC. Howerver, it may be added when using hardware
- ECC for clarification but will be ignored by the driver because ECC
- mode is chosen depending on the page size and the strength required by
- the NAND chip. This value may be overwritten with nand-ecc-strength
- property.
-- nand-ecc-strength: see nand-controller.yaml.
-- nand-ecc-step-size: see nand-controller.yaml. Marvell's NAND flash controller does
- use fixed strength (1-bit for Hamming, 16-bit for BCH), so the actual
- step size will shrink or grow in order to fit the required strength.
- Step sizes are not completely random for all and follow certain
- patterns described in AN-379, "Marvell SoC NFC ECC".
-
-See Documentation/devicetree/bindings/mtd/nand-controller.yaml for more details on
-generic bindings.
-
-
-Example:
-nand_controller: nand-controller@d0000 {
- compatible = "marvell,armada370-nand-controller";
- reg = <0xd0000 0x54>;
- #address-cells = <1>;
- #size-cells = <0>;
- interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&coredivclk 0>;
-
- nand@0 {
- reg = <0>;
- label = "main-storage";
- nand-rb = <0>;
- nand-ecc-mode = "hw";
- marvell,nand-keep-config;
- nand-on-flash-bbt;
- nand-ecc-strength = <4>;
- nand-ecc-step-size = <512>;
-
- partitions {
- compatible = "fixed-partitions";
- #address-cells = <1>;
- #size-cells = <1>;
-
- partition@0 {
- label = "Rootfs";
- reg = <0x00000000 0x40000000>;
- };
- };
- };
-};
-
-
-Note on legacy bindings: One can find, in not-updated device trees,
-bindings slightly different than described above with other properties
-described below as well as the partitions node at the root of a so
-called "nand" node (without clear controller/chip separation).
-
-Legacy properties:
-- marvell,nand-enable-arbiter: To enable the arbiter, all boards blindly
- used it, this bit was set by the bootloader for many boards and even if
- it is marked reserved in several datasheets, it might be needed to set
- it (otherwise it is harmless) so whether or not this property is set,
- the bit is selected by the driver.
-- num-cs: Number of chip-select lines to use, all boards blindly set 1
- to this and for a reason, other values would have failed. The value of
- this property is ignored.
-
-Example:
-
- nand0: nand@43100000 {
- compatible = "marvell,pxa3xx-nand";
- reg = <0x43100000 90>;
- interrupts = <45>;
- dmas = <&pdma 97 0>;
- dma-names = "rxtx";
- #address-cells = <1>;
- marvell,nand-keep-config;
- marvell,nand-enable-arbiter;
- num-cs = <1>;
- /* Partitions (optional) */
- };
diff --git a/MAINTAINERS b/MAINTAINERS
index 250518fc70ff..e70dbc50a74e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12534,7 +12534,6 @@ MARVELL NAND CONTROLLER DRIVER
M: Miquel Raynal <miquel.raynal@bootlin.com>
L: linux-mtd@lists.infradead.org
S: Maintained
-F: Documentation/devicetree/bindings/mtd/marvell-nand.txt
F: drivers/mtd/nand/raw/marvell_nand.c
MARVELL OCTEON ENDPOINT DRIVER
--
2.40.1
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply related [flat|nested] 39+ messages in thread* Re: [PATCH v7 3/4] dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
2023-05-30 23:54 ` Chris Packham
(?)
@ 2023-05-31 12:35 ` Conor Dooley
-1 siblings, 0 replies; 39+ messages in thread
From: Conor Dooley @ 2023-05-31 12:35 UTC (permalink / raw)
To: Chris Packham
Cc: miquel.raynal, richard, vigneshr, robh+dt,
krzysztof.kozlowski+dt, conor+dt, andrew, gregory.clement,
sebastian.hesselbarth, linux-mtd, devicetree, linux-kernel,
linux-arm-kernel, enachman, Vadym Kochan
[-- Attachment #1: Type: text/plain, Size: 4646 bytes --]
Hey Chris,
On Wed, May 31, 2023 at 11:54:55AM +1200, Chris Packham wrote:
> From: Vadym Kochan <vadym.kochan@plvision.eu>
>
> Switch the DT binding to a YAML schema to enable the DT validation.
>
> Dropped deprecated compatibles and properties described in txt file.
>
> Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
> ---
>
> Notes:
> Changes in v7:
> - Restore "label" and "partitions" properties (should be picked up via
> nand-controller.yaml but aren't)
> - Add/restore nand-on-flash-bbt and nand-ecc-mode which aren't covered
> by nand-controller.yaml.
> - Use "unevalautedProperties: false"
> - Corrections for clock-names, dma-names, nand-rb and nand-ecc-strength
> - Add pxa3xx-nand-controller example
>
> Changes in v6:
> - remove properties covered by nand-controller.yaml
> - add example using armada-8k compatible
>
> earlier changes:
>
> v5:
> 1) Get back "label" and "partitions" properties but without
> ref to the "partition.yaml" which was wrongly used.
>
> 2) Add "additionalProperties: false" for nand@ because all possible
> properties are described.
>
> v4:
> 1) Remove "label" and "partitions" properties
>
> 2) Use 2 clocks for A7K/8K platform which is a requirement
>
> v3:
> 1) Remove txt version from the MAINTAINERS list
>
> 2) Use enum for some of compatible strings
>
> 3) Drop:
> #address-cells
> #size-cells:
>
> as they are inherited from the nand-controller.yaml
>
> 4) Add restriction to use 2 clocks for A8K SoC
>
> 5) Dropped description for clock-names and extend it with
> minItems: 1
>
> 6) Drop description for "dmas"
>
> 7) Use "unevalautedProperties: false"
>
> 8) Drop quites from yaml refs.
>
> 9) Use 4-space indentation for the example section
>
> v2:
> 1) Fixed warning by yamllint with incorrect indentation for compatible list
>
> .../bindings/mtd/marvell,nand-controller.yaml | 221 ++++++++++++++++++
> .../devicetree/bindings/mtd/marvell-nand.txt | 126 ----------
> MAINTAINERS | 1 -
> 3 files changed, 221 insertions(+), 127 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> delete mode 100644 Documentation/devicetree/bindings/mtd/marvell-nand.txt
>
> diff --git a/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> new file mode 100644
> index 000000000000..7cd4a2e99343
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> @@ -0,0 +1,221 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mtd/marvell,nand-controller.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Marvell NAND Flash Controller (NFC)
> +
> +maintainers:
> + - Miquel Raynal <miquel.raynal@bootlin.com>
> +
> +properties:
> + compatible:
> + oneOf:
> + - items:
> + - const: marvell,armada-8k-nand-controller
> + - const: marvell,armada370-nand-controller
Apologies if I have missed this - but the commit message should probably
explain where this fallback came from since it does not appear to be
present in the original binding.
> + - enum:
> + - marvell,armada370-nand-controller
> + - marvell,pxa3xx-nand-controller
> + - marvell,armada-8k-nand
> + - marvell,armada370-nand
> + - marvell,pxa3xx-nand
Please mark these 3 as deprecated.
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + description:
> + Shall reference the NAND controller clocks, the second one is
> + is only needed for the Armada 7K/8K SoCs
As a nit, allOf below invalidates this second part of the sentence (in
possibly a clearer way too).
> + minItems: 1
> + maxItems: 2
> +
> + clock-names:
> + minItems: 1
> + items:
> + - const: core
> + - const: reg
> +
> + dmas:
> + maxItems: 1
> +
> + dma-names:
> + items:
> + - enum:
I don't think the items: here is needed, enum on its own suffices, no?
Cheers,
Conor.
[-- Attachment #2: signature.asc --]
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^ permalink raw reply [flat|nested] 39+ messages in thread
* Re: [PATCH v7 3/4] dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
@ 2023-05-31 12:35 ` Conor Dooley
0 siblings, 0 replies; 39+ messages in thread
From: Conor Dooley @ 2023-05-31 12:35 UTC (permalink / raw)
To: Chris Packham
Cc: miquel.raynal, richard, vigneshr, robh+dt,
krzysztof.kozlowski+dt, conor+dt, andrew, gregory.clement,
sebastian.hesselbarth, linux-mtd, devicetree, linux-kernel,
linux-arm-kernel, enachman, Vadym Kochan
[-- Attachment #1.1: Type: text/plain, Size: 4646 bytes --]
Hey Chris,
On Wed, May 31, 2023 at 11:54:55AM +1200, Chris Packham wrote:
> From: Vadym Kochan <vadym.kochan@plvision.eu>
>
> Switch the DT binding to a YAML schema to enable the DT validation.
>
> Dropped deprecated compatibles and properties described in txt file.
>
> Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
> ---
>
> Notes:
> Changes in v7:
> - Restore "label" and "partitions" properties (should be picked up via
> nand-controller.yaml but aren't)
> - Add/restore nand-on-flash-bbt and nand-ecc-mode which aren't covered
> by nand-controller.yaml.
> - Use "unevalautedProperties: false"
> - Corrections for clock-names, dma-names, nand-rb and nand-ecc-strength
> - Add pxa3xx-nand-controller example
>
> Changes in v6:
> - remove properties covered by nand-controller.yaml
> - add example using armada-8k compatible
>
> earlier changes:
>
> v5:
> 1) Get back "label" and "partitions" properties but without
> ref to the "partition.yaml" which was wrongly used.
>
> 2) Add "additionalProperties: false" for nand@ because all possible
> properties are described.
>
> v4:
> 1) Remove "label" and "partitions" properties
>
> 2) Use 2 clocks for A7K/8K platform which is a requirement
>
> v3:
> 1) Remove txt version from the MAINTAINERS list
>
> 2) Use enum for some of compatible strings
>
> 3) Drop:
> #address-cells
> #size-cells:
>
> as they are inherited from the nand-controller.yaml
>
> 4) Add restriction to use 2 clocks for A8K SoC
>
> 5) Dropped description for clock-names and extend it with
> minItems: 1
>
> 6) Drop description for "dmas"
>
> 7) Use "unevalautedProperties: false"
>
> 8) Drop quites from yaml refs.
>
> 9) Use 4-space indentation for the example section
>
> v2:
> 1) Fixed warning by yamllint with incorrect indentation for compatible list
>
> .../bindings/mtd/marvell,nand-controller.yaml | 221 ++++++++++++++++++
> .../devicetree/bindings/mtd/marvell-nand.txt | 126 ----------
> MAINTAINERS | 1 -
> 3 files changed, 221 insertions(+), 127 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> delete mode 100644 Documentation/devicetree/bindings/mtd/marvell-nand.txt
>
> diff --git a/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> new file mode 100644
> index 000000000000..7cd4a2e99343
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> @@ -0,0 +1,221 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mtd/marvell,nand-controller.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Marvell NAND Flash Controller (NFC)
> +
> +maintainers:
> + - Miquel Raynal <miquel.raynal@bootlin.com>
> +
> +properties:
> + compatible:
> + oneOf:
> + - items:
> + - const: marvell,armada-8k-nand-controller
> + - const: marvell,armada370-nand-controller
Apologies if I have missed this - but the commit message should probably
explain where this fallback came from since it does not appear to be
present in the original binding.
> + - enum:
> + - marvell,armada370-nand-controller
> + - marvell,pxa3xx-nand-controller
> + - marvell,armada-8k-nand
> + - marvell,armada370-nand
> + - marvell,pxa3xx-nand
Please mark these 3 as deprecated.
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + description:
> + Shall reference the NAND controller clocks, the second one is
> + is only needed for the Armada 7K/8K SoCs
As a nit, allOf below invalidates this second part of the sentence (in
possibly a clearer way too).
> + minItems: 1
> + maxItems: 2
> +
> + clock-names:
> + minItems: 1
> + items:
> + - const: core
> + - const: reg
> +
> + dmas:
> + maxItems: 1
> +
> + dma-names:
> + items:
> + - enum:
I don't think the items: here is needed, enum on its own suffices, no?
Cheers,
Conor.
[-- Attachment #1.2: signature.asc --]
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[-- Attachment #2: Type: text/plain, Size: 176 bytes --]
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 39+ messages in thread
* Re: [PATCH v7 3/4] dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
@ 2023-05-31 12:35 ` Conor Dooley
0 siblings, 0 replies; 39+ messages in thread
From: Conor Dooley @ 2023-05-31 12:35 UTC (permalink / raw)
To: Chris Packham
Cc: miquel.raynal, richard, vigneshr, robh+dt,
krzysztof.kozlowski+dt, conor+dt, andrew, gregory.clement,
sebastian.hesselbarth, linux-mtd, devicetree, linux-kernel,
linux-arm-kernel, enachman, Vadym Kochan
[-- Attachment #1.1: Type: text/plain, Size: 4646 bytes --]
Hey Chris,
On Wed, May 31, 2023 at 11:54:55AM +1200, Chris Packham wrote:
> From: Vadym Kochan <vadym.kochan@plvision.eu>
>
> Switch the DT binding to a YAML schema to enable the DT validation.
>
> Dropped deprecated compatibles and properties described in txt file.
>
> Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
> ---
>
> Notes:
> Changes in v7:
> - Restore "label" and "partitions" properties (should be picked up via
> nand-controller.yaml but aren't)
> - Add/restore nand-on-flash-bbt and nand-ecc-mode which aren't covered
> by nand-controller.yaml.
> - Use "unevalautedProperties: false"
> - Corrections for clock-names, dma-names, nand-rb and nand-ecc-strength
> - Add pxa3xx-nand-controller example
>
> Changes in v6:
> - remove properties covered by nand-controller.yaml
> - add example using armada-8k compatible
>
> earlier changes:
>
> v5:
> 1) Get back "label" and "partitions" properties but without
> ref to the "partition.yaml" which was wrongly used.
>
> 2) Add "additionalProperties: false" for nand@ because all possible
> properties are described.
>
> v4:
> 1) Remove "label" and "partitions" properties
>
> 2) Use 2 clocks for A7K/8K platform which is a requirement
>
> v3:
> 1) Remove txt version from the MAINTAINERS list
>
> 2) Use enum for some of compatible strings
>
> 3) Drop:
> #address-cells
> #size-cells:
>
> as they are inherited from the nand-controller.yaml
>
> 4) Add restriction to use 2 clocks for A8K SoC
>
> 5) Dropped description for clock-names and extend it with
> minItems: 1
>
> 6) Drop description for "dmas"
>
> 7) Use "unevalautedProperties: false"
>
> 8) Drop quites from yaml refs.
>
> 9) Use 4-space indentation for the example section
>
> v2:
> 1) Fixed warning by yamllint with incorrect indentation for compatible list
>
> .../bindings/mtd/marvell,nand-controller.yaml | 221 ++++++++++++++++++
> .../devicetree/bindings/mtd/marvell-nand.txt | 126 ----------
> MAINTAINERS | 1 -
> 3 files changed, 221 insertions(+), 127 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> delete mode 100644 Documentation/devicetree/bindings/mtd/marvell-nand.txt
>
> diff --git a/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> new file mode 100644
> index 000000000000..7cd4a2e99343
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> @@ -0,0 +1,221 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mtd/marvell,nand-controller.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Marvell NAND Flash Controller (NFC)
> +
> +maintainers:
> + - Miquel Raynal <miquel.raynal@bootlin.com>
> +
> +properties:
> + compatible:
> + oneOf:
> + - items:
> + - const: marvell,armada-8k-nand-controller
> + - const: marvell,armada370-nand-controller
Apologies if I have missed this - but the commit message should probably
explain where this fallback came from since it does not appear to be
present in the original binding.
> + - enum:
> + - marvell,armada370-nand-controller
> + - marvell,pxa3xx-nand-controller
> + - marvell,armada-8k-nand
> + - marvell,armada370-nand
> + - marvell,pxa3xx-nand
Please mark these 3 as deprecated.
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + clocks:
> + description:
> + Shall reference the NAND controller clocks, the second one is
> + is only needed for the Armada 7K/8K SoCs
As a nit, allOf below invalidates this second part of the sentence (in
possibly a clearer way too).
> + minItems: 1
> + maxItems: 2
> +
> + clock-names:
> + minItems: 1
> + items:
> + - const: core
> + - const: reg
> +
> + dmas:
> + maxItems: 1
> +
> + dma-names:
> + items:
> + - enum:
I don't think the items: here is needed, enum on its own suffices, no?
Cheers,
Conor.
[-- Attachment #1.2: signature.asc --]
[-- Type: application/pgp-signature, Size: 228 bytes --]
[-- Attachment #2: Type: text/plain, Size: 144 bytes --]
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply [flat|nested] 39+ messages in thread
* Re: [PATCH v7 3/4] dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
2023-05-31 12:35 ` Conor Dooley
(?)
@ 2023-05-31 22:52 ` Chris Packham
-1 siblings, 0 replies; 39+ messages in thread
From: Chris Packham @ 2023-05-31 22:52 UTC (permalink / raw)
To: Conor Dooley
Cc: miquel.raynal, richard, vigneshr, robh+dt,
krzysztof.kozlowski+dt, conor+dt, andrew, gregory.clement,
sebastian.hesselbarth, linux-mtd, devicetree, linux-kernel,
linux-arm-kernel, enachman, Vadym Kochan
On 1/06/23 00:35, Conor Dooley wrote:
> Hey Chris,
>
> On Wed, May 31, 2023 at 11:54:55AM +1200, Chris Packham wrote:
>> From: Vadym Kochan <vadym.kochan@plvision.eu>
>>
>> Switch the DT binding to a YAML schema to enable the DT validation.
>>
>> Dropped deprecated compatibles and properties described in txt file.
>>
>> Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
>> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
>> ---
>>
>> Notes:
>> Changes in v7:
>> - Restore "label" and "partitions" properties (should be picked up via
>> nand-controller.yaml but aren't)
>> - Add/restore nand-on-flash-bbt and nand-ecc-mode which aren't covered
>> by nand-controller.yaml.
>> - Use "unevalautedProperties: false"
>> - Corrections for clock-names, dma-names, nand-rb and nand-ecc-strength
>> - Add pxa3xx-nand-controller example
>>
>> Changes in v6:
>> - remove properties covered by nand-controller.yaml
>> - add example using armada-8k compatible
>>
>> earlier changes:
>>
>> v5:
>> 1) Get back "label" and "partitions" properties but without
>> ref to the "partition.yaml" which was wrongly used.
>>
>> 2) Add "additionalProperties: false" for nand@ because all possible
>> properties are described.
>>
>> v4:
>> 1) Remove "label" and "partitions" properties
>>
>> 2) Use 2 clocks for A7K/8K platform which is a requirement
>>
>> v3:
>> 1) Remove txt version from the MAINTAINERS list
>>
>> 2) Use enum for some of compatible strings
>>
>> 3) Drop:
>> #address-cells
>> #size-cells:
>>
>> as they are inherited from the nand-controller.yaml
>>
>> 4) Add restriction to use 2 clocks for A8K SoC
>>
>> 5) Dropped description for clock-names and extend it with
>> minItems: 1
>>
>> 6) Drop description for "dmas"
>>
>> 7) Use "unevalautedProperties: false"
>>
>> 8) Drop quites from yaml refs.
>>
>> 9) Use 4-space indentation for the example section
>>
>> v2:
>> 1) Fixed warning by yamllint with incorrect indentation for compatible list
>>
>> .../bindings/mtd/marvell,nand-controller.yaml | 221 ++++++++++++++++++
>> .../devicetree/bindings/mtd/marvell-nand.txt | 126 ----------
>> MAINTAINERS | 1 -
>> 3 files changed, 221 insertions(+), 127 deletions(-)
>> create mode 100644 Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
>> delete mode 100644 Documentation/devicetree/bindings/mtd/marvell-nand.txt
>>
>> diff --git a/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
>> new file mode 100644
>> index 000000000000..7cd4a2e99343
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
>> @@ -0,0 +1,221 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/mtd/marvell,nand-controller.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Marvell NAND Flash Controller (NFC)
>> +
>> +maintainers:
>> + - Miquel Raynal <miquel.raynal@bootlin.com>
>> +
>> +properties:
>> + compatible:
>> + oneOf:
>> + - items:
>> + - const: marvell,armada-8k-nand-controller
>> + - const: marvell,armada370-nand-controller
> Apologies if I have missed this - but the commit message should probably
> explain where this fallback came from since it does not appear to be
> present in the original binding.
Yes I'll mention it.
>> + - enum:
>> + - marvell,armada370-nand-controller
>> + - marvell,pxa3xx-nand-controller
>> + - marvell,armada-8k-nand
>> + - marvell,armada370-nand
>> + - marvell,pxa3xx-nand
> Please mark these 3 as deprecated.
Will do
>> +
>> + reg:
>> + maxItems: 1
>> +
>> + interrupts:
>> + maxItems: 1
>> +
>> + clocks:
>> + description:
>> + Shall reference the NAND controller clocks, the second one is
>> + is only needed for the Armada 7K/8K SoCs
> As a nit, allOf below invalidates this second part of the sentence (in
> possibly a clearer way too).
I'm not quite sure what you mean. Is it just that the description is
redundant now that the schema enforces the requirement or am I actually
not enforcing things the way I think.
>> + minItems: 1
>> + maxItems: 2
>> +
>> + clock-names:
>> + minItems: 1
>> + items:
>> + - const: core
>> + - const: reg
>> +
>> + dmas:
>> + maxItems: 1
>> +
>> + dma-names:
>> + items:
>> + - enum:
> I don't think the items: here is needed, enum on its own suffices, no?
The trend in other bindings seems to be
items:
- const: value1
- const: value2
so I'll go with that.
>
> Cheers,
> Conor.
^ permalink raw reply [flat|nested] 39+ messages in thread
* Re: [PATCH v7 3/4] dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
@ 2023-05-31 22:52 ` Chris Packham
0 siblings, 0 replies; 39+ messages in thread
From: Chris Packham @ 2023-05-31 22:52 UTC (permalink / raw)
To: Conor Dooley
Cc: miquel.raynal, richard, vigneshr, robh+dt,
krzysztof.kozlowski+dt, conor+dt, andrew, gregory.clement,
sebastian.hesselbarth, linux-mtd, devicetree, linux-kernel,
linux-arm-kernel, enachman, Vadym Kochan
On 1/06/23 00:35, Conor Dooley wrote:
> Hey Chris,
>
> On Wed, May 31, 2023 at 11:54:55AM +1200, Chris Packham wrote:
>> From: Vadym Kochan <vadym.kochan@plvision.eu>
>>
>> Switch the DT binding to a YAML schema to enable the DT validation.
>>
>> Dropped deprecated compatibles and properties described in txt file.
>>
>> Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
>> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
>> ---
>>
>> Notes:
>> Changes in v7:
>> - Restore "label" and "partitions" properties (should be picked up via
>> nand-controller.yaml but aren't)
>> - Add/restore nand-on-flash-bbt and nand-ecc-mode which aren't covered
>> by nand-controller.yaml.
>> - Use "unevalautedProperties: false"
>> - Corrections for clock-names, dma-names, nand-rb and nand-ecc-strength
>> - Add pxa3xx-nand-controller example
>>
>> Changes in v6:
>> - remove properties covered by nand-controller.yaml
>> - add example using armada-8k compatible
>>
>> earlier changes:
>>
>> v5:
>> 1) Get back "label" and "partitions" properties but without
>> ref to the "partition.yaml" which was wrongly used.
>>
>> 2) Add "additionalProperties: false" for nand@ because all possible
>> properties are described.
>>
>> v4:
>> 1) Remove "label" and "partitions" properties
>>
>> 2) Use 2 clocks for A7K/8K platform which is a requirement
>>
>> v3:
>> 1) Remove txt version from the MAINTAINERS list
>>
>> 2) Use enum for some of compatible strings
>>
>> 3) Drop:
>> #address-cells
>> #size-cells:
>>
>> as they are inherited from the nand-controller.yaml
>>
>> 4) Add restriction to use 2 clocks for A8K SoC
>>
>> 5) Dropped description for clock-names and extend it with
>> minItems: 1
>>
>> 6) Drop description for "dmas"
>>
>> 7) Use "unevalautedProperties: false"
>>
>> 8) Drop quites from yaml refs.
>>
>> 9) Use 4-space indentation for the example section
>>
>> v2:
>> 1) Fixed warning by yamllint with incorrect indentation for compatible list
>>
>> .../bindings/mtd/marvell,nand-controller.yaml | 221 ++++++++++++++++++
>> .../devicetree/bindings/mtd/marvell-nand.txt | 126 ----------
>> MAINTAINERS | 1 -
>> 3 files changed, 221 insertions(+), 127 deletions(-)
>> create mode 100644 Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
>> delete mode 100644 Documentation/devicetree/bindings/mtd/marvell-nand.txt
>>
>> diff --git a/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
>> new file mode 100644
>> index 000000000000..7cd4a2e99343
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
>> @@ -0,0 +1,221 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/mtd/marvell,nand-controller.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Marvell NAND Flash Controller (NFC)
>> +
>> +maintainers:
>> + - Miquel Raynal <miquel.raynal@bootlin.com>
>> +
>> +properties:
>> + compatible:
>> + oneOf:
>> + - items:
>> + - const: marvell,armada-8k-nand-controller
>> + - const: marvell,armada370-nand-controller
> Apologies if I have missed this - but the commit message should probably
> explain where this fallback came from since it does not appear to be
> present in the original binding.
Yes I'll mention it.
>> + - enum:
>> + - marvell,armada370-nand-controller
>> + - marvell,pxa3xx-nand-controller
>> + - marvell,armada-8k-nand
>> + - marvell,armada370-nand
>> + - marvell,pxa3xx-nand
> Please mark these 3 as deprecated.
Will do
>> +
>> + reg:
>> + maxItems: 1
>> +
>> + interrupts:
>> + maxItems: 1
>> +
>> + clocks:
>> + description:
>> + Shall reference the NAND controller clocks, the second one is
>> + is only needed for the Armada 7K/8K SoCs
> As a nit, allOf below invalidates this second part of the sentence (in
> possibly a clearer way too).
I'm not quite sure what you mean. Is it just that the description is
redundant now that the schema enforces the requirement or am I actually
not enforcing things the way I think.
>> + minItems: 1
>> + maxItems: 2
>> +
>> + clock-names:
>> + minItems: 1
>> + items:
>> + - const: core
>> + - const: reg
>> +
>> + dmas:
>> + maxItems: 1
>> +
>> + dma-names:
>> + items:
>> + - enum:
> I don't think the items: here is needed, enum on its own suffices, no?
The trend in other bindings seems to be
items:
- const: value1
- const: value2
so I'll go with that.
>
> Cheers,
> Conor.
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 39+ messages in thread
* Re: [PATCH v7 3/4] dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
@ 2023-05-31 22:52 ` Chris Packham
0 siblings, 0 replies; 39+ messages in thread
From: Chris Packham @ 2023-05-31 22:52 UTC (permalink / raw)
To: Conor Dooley
Cc: miquel.raynal, richard, vigneshr, robh+dt,
krzysztof.kozlowski+dt, conor+dt, andrew, gregory.clement,
sebastian.hesselbarth, linux-mtd, devicetree, linux-kernel,
linux-arm-kernel, enachman, Vadym Kochan
On 1/06/23 00:35, Conor Dooley wrote:
> Hey Chris,
>
> On Wed, May 31, 2023 at 11:54:55AM +1200, Chris Packham wrote:
>> From: Vadym Kochan <vadym.kochan@plvision.eu>
>>
>> Switch the DT binding to a YAML schema to enable the DT validation.
>>
>> Dropped deprecated compatibles and properties described in txt file.
>>
>> Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
>> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
>> ---
>>
>> Notes:
>> Changes in v7:
>> - Restore "label" and "partitions" properties (should be picked up via
>> nand-controller.yaml but aren't)
>> - Add/restore nand-on-flash-bbt and nand-ecc-mode which aren't covered
>> by nand-controller.yaml.
>> - Use "unevalautedProperties: false"
>> - Corrections for clock-names, dma-names, nand-rb and nand-ecc-strength
>> - Add pxa3xx-nand-controller example
>>
>> Changes in v6:
>> - remove properties covered by nand-controller.yaml
>> - add example using armada-8k compatible
>>
>> earlier changes:
>>
>> v5:
>> 1) Get back "label" and "partitions" properties but without
>> ref to the "partition.yaml" which was wrongly used.
>>
>> 2) Add "additionalProperties: false" for nand@ because all possible
>> properties are described.
>>
>> v4:
>> 1) Remove "label" and "partitions" properties
>>
>> 2) Use 2 clocks for A7K/8K platform which is a requirement
>>
>> v3:
>> 1) Remove txt version from the MAINTAINERS list
>>
>> 2) Use enum for some of compatible strings
>>
>> 3) Drop:
>> #address-cells
>> #size-cells:
>>
>> as they are inherited from the nand-controller.yaml
>>
>> 4) Add restriction to use 2 clocks for A8K SoC
>>
>> 5) Dropped description for clock-names and extend it with
>> minItems: 1
>>
>> 6) Drop description for "dmas"
>>
>> 7) Use "unevalautedProperties: false"
>>
>> 8) Drop quites from yaml refs.
>>
>> 9) Use 4-space indentation for the example section
>>
>> v2:
>> 1) Fixed warning by yamllint with incorrect indentation for compatible list
>>
>> .../bindings/mtd/marvell,nand-controller.yaml | 221 ++++++++++++++++++
>> .../devicetree/bindings/mtd/marvell-nand.txt | 126 ----------
>> MAINTAINERS | 1 -
>> 3 files changed, 221 insertions(+), 127 deletions(-)
>> create mode 100644 Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
>> delete mode 100644 Documentation/devicetree/bindings/mtd/marvell-nand.txt
>>
>> diff --git a/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
>> new file mode 100644
>> index 000000000000..7cd4a2e99343
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
>> @@ -0,0 +1,221 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/mtd/marvell,nand-controller.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Marvell NAND Flash Controller (NFC)
>> +
>> +maintainers:
>> + - Miquel Raynal <miquel.raynal@bootlin.com>
>> +
>> +properties:
>> + compatible:
>> + oneOf:
>> + - items:
>> + - const: marvell,armada-8k-nand-controller
>> + - const: marvell,armada370-nand-controller
> Apologies if I have missed this - but the commit message should probably
> explain where this fallback came from since it does not appear to be
> present in the original binding.
Yes I'll mention it.
>> + - enum:
>> + - marvell,armada370-nand-controller
>> + - marvell,pxa3xx-nand-controller
>> + - marvell,armada-8k-nand
>> + - marvell,armada370-nand
>> + - marvell,pxa3xx-nand
> Please mark these 3 as deprecated.
Will do
>> +
>> + reg:
>> + maxItems: 1
>> +
>> + interrupts:
>> + maxItems: 1
>> +
>> + clocks:
>> + description:
>> + Shall reference the NAND controller clocks, the second one is
>> + is only needed for the Armada 7K/8K SoCs
> As a nit, allOf below invalidates this second part of the sentence (in
> possibly a clearer way too).
I'm not quite sure what you mean. Is it just that the description is
redundant now that the schema enforces the requirement or am I actually
not enforcing things the way I think.
>> + minItems: 1
>> + maxItems: 2
>> +
>> + clock-names:
>> + minItems: 1
>> + items:
>> + - const: core
>> + - const: reg
>> +
>> + dmas:
>> + maxItems: 1
>> +
>> + dma-names:
>> + items:
>> + - enum:
> I don't think the items: here is needed, enum on its own suffices, no?
The trend in other bindings seems to be
items:
- const: value1
- const: value2
so I'll go with that.
>
> Cheers,
> Conor.
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply [flat|nested] 39+ messages in thread
* Re: [PATCH v7 3/4] dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
2023-05-30 23:54 ` Chris Packham
(?)
@ 2023-05-31 22:43 ` Chris Packham
-1 siblings, 0 replies; 39+ messages in thread
From: Chris Packham @ 2023-05-31 22:43 UTC (permalink / raw)
To: miquel.raynal, richard, vigneshr, robh+dt,
krzysztof.kozlowski+dt, conor+dt, andrew, gregory.clement,
sebastian.hesselbarth
Cc: linux-mtd, devicetree, linux-kernel, linux-arm-kernel, enachman,
Vadym Kochan
Hi Miquel,
On 31/05/23 11:54, Chris Packham wrote:
> From: Vadym Kochan <vadym.kochan@plvision.eu>
>
> Switch the DT binding to a YAML schema to enable the DT validation.
>
> Dropped deprecated compatibles and properties described in txt file.
>
> Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
> ---
<snip>
> diff --git a/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> new file mode 100644
> index 000000000000..7cd4a2e99343
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> @@ -0,0 +1,221 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mtd/marvell,nand-controller.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Marvell NAND Flash Controller (NFC)
> +
> +maintainers:
> + - Miquel Raynal <miquel.raynal@bootlin.com>
> +
> +properties:
> + compatible:
> + oneOf:
> + - items:
> + - const: marvell,armada-8k-nand-controller
> + - const: marvell,armada370-nand-controller
On this specific point. Was your intention to allow just the
"marvell,armada-8k-nand-controller" compatible?
I made it a list as the existing usage is `compatible =
"marvell,armada-8k-nand-controller",
"marvell,armada370-nand-controller";` but an earlier comment you made
suggested that your intention was to allow just the 8k compatible on
it's own. Looking at the driver it doesn't do any is_compatible() checks
so I don't think it cares (currently).
> + - enum:
> + - marvell,armada370-nand-controller
> + - marvell,pxa3xx-nand-controller
> + - marvell,armada-8k-nand
> + - marvell,armada370-nand
> + - marvell,pxa3xx-nand
> +
^ permalink raw reply [flat|nested] 39+ messages in thread
* Re: [PATCH v7 3/4] dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
@ 2023-05-31 22:43 ` Chris Packham
0 siblings, 0 replies; 39+ messages in thread
From: Chris Packham @ 2023-05-31 22:43 UTC (permalink / raw)
To: miquel.raynal, richard, vigneshr, robh+dt,
krzysztof.kozlowski+dt, conor+dt, andrew, gregory.clement,
sebastian.hesselbarth
Cc: linux-mtd, devicetree, linux-kernel, linux-arm-kernel, enachman,
Vadym Kochan
Hi Miquel,
On 31/05/23 11:54, Chris Packham wrote:
> From: Vadym Kochan <vadym.kochan@plvision.eu>
>
> Switch the DT binding to a YAML schema to enable the DT validation.
>
> Dropped deprecated compatibles and properties described in txt file.
>
> Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
> ---
<snip>
> diff --git a/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> new file mode 100644
> index 000000000000..7cd4a2e99343
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> @@ -0,0 +1,221 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mtd/marvell,nand-controller.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Marvell NAND Flash Controller (NFC)
> +
> +maintainers:
> + - Miquel Raynal <miquel.raynal@bootlin.com>
> +
> +properties:
> + compatible:
> + oneOf:
> + - items:
> + - const: marvell,armada-8k-nand-controller
> + - const: marvell,armada370-nand-controller
On this specific point. Was your intention to allow just the
"marvell,armada-8k-nand-controller" compatible?
I made it a list as the existing usage is `compatible =
"marvell,armada-8k-nand-controller",
"marvell,armada370-nand-controller";` but an earlier comment you made
suggested that your intention was to allow just the 8k compatible on
it's own. Looking at the driver it doesn't do any is_compatible() checks
so I don't think it cares (currently).
> + - enum:
> + - marvell,armada370-nand-controller
> + - marvell,pxa3xx-nand-controller
> + - marvell,armada-8k-nand
> + - marvell,armada370-nand
> + - marvell,pxa3xx-nand
> +
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 39+ messages in thread
* Re: [PATCH v7 3/4] dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
@ 2023-05-31 22:43 ` Chris Packham
0 siblings, 0 replies; 39+ messages in thread
From: Chris Packham @ 2023-05-31 22:43 UTC (permalink / raw)
To: miquel.raynal, richard, vigneshr, robh+dt,
krzysztof.kozlowski+dt, conor+dt, andrew, gregory.clement,
sebastian.hesselbarth
Cc: linux-mtd, devicetree, linux-kernel, linux-arm-kernel, enachman,
Vadym Kochan
Hi Miquel,
On 31/05/23 11:54, Chris Packham wrote:
> From: Vadym Kochan <vadym.kochan@plvision.eu>
>
> Switch the DT binding to a YAML schema to enable the DT validation.
>
> Dropped deprecated compatibles and properties described in txt file.
>
> Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
> ---
<snip>
> diff --git a/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> new file mode 100644
> index 000000000000..7cd4a2e99343
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> @@ -0,0 +1,221 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mtd/marvell,nand-controller.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Marvell NAND Flash Controller (NFC)
> +
> +maintainers:
> + - Miquel Raynal <miquel.raynal@bootlin.com>
> +
> +properties:
> + compatible:
> + oneOf:
> + - items:
> + - const: marvell,armada-8k-nand-controller
> + - const: marvell,armada370-nand-controller
On this specific point. Was your intention to allow just the
"marvell,armada-8k-nand-controller" compatible?
I made it a list as the existing usage is `compatible =
"marvell,armada-8k-nand-controller",
"marvell,armada370-nand-controller";` but an earlier comment you made
suggested that your intention was to allow just the 8k compatible on
it's own. Looking at the driver it doesn't do any is_compatible() checks
so I don't think it cares (currently).
> + - enum:
> + - marvell,armada370-nand-controller
> + - marvell,pxa3xx-nand-controller
> + - marvell,armada-8k-nand
> + - marvell,armada370-nand
> + - marvell,pxa3xx-nand
> +
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply [flat|nested] 39+ messages in thread
* Re: [PATCH v7 3/4] dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
2023-05-31 22:43 ` Chris Packham
(?)
@ 2023-06-01 7:40 ` Miquel Raynal
-1 siblings, 0 replies; 39+ messages in thread
From: Miquel Raynal @ 2023-06-01 7:40 UTC (permalink / raw)
To: Chris Packham
Cc: richard, vigneshr, robh+dt, krzysztof.kozlowski+dt, conor+dt,
andrew, gregory.clement, sebastian.hesselbarth, linux-mtd,
devicetree, linux-kernel, linux-arm-kernel, enachman,
Vadym Kochan
Hi Chris,
Chris.Packham@alliedtelesis.co.nz wrote on Wed, 31 May 2023 22:43:46
+0000:
> Hi Miquel,
>
> On 31/05/23 11:54, Chris Packham wrote:
> > From: Vadym Kochan <vadym.kochan@plvision.eu>
> >
> > Switch the DT binding to a YAML schema to enable the DT validation.
> >
> > Dropped deprecated compatibles and properties described in txt file.
> >
> > Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
> > Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
> > ---
> <snip>
> > diff --git a/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> > new file mode 100644
> > index 000000000000..7cd4a2e99343
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> > @@ -0,0 +1,221 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/mtd/marvell,nand-controller.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Marvell NAND Flash Controller (NFC)
> > +
> > +maintainers:
> > + - Miquel Raynal <miquel.raynal@bootlin.com>
> > +
> > +properties:
> > + compatible:
> > + oneOf:
> > + - items:
> > + - const: marvell,armada-8k-nand-controller
> > + - const: marvell,armada370-nand-controller
>
> On this specific point. Was your intention to allow just the
> "marvell,armada-8k-nand-controller" compatible?
>
> I made it a list as the existing usage is `compatible =
> "marvell,armada-8k-nand-controller",
> "marvell,armada370-nand-controller";` but an earlier comment you made
> suggested that your intention was to allow just the 8k compatible on
> it's own.
To be honest I don't recall. Sometimes it's best to consider a version
of a controller to be a superset of another, in this case both
compatibles are welcome. I suggest you keep the description as it is.
> Looking at the driver it doesn't do any is_compatible() checks
> so I don't think it cares (currently).
>
> > + - enum:
> > + - marvell,armada370-nand-controller
> > + - marvell,pxa3xx-nand-controller
> > + - marvell,armada-8k-nand
> > + - marvell,armada370-nand
> > + - marvell,pxa3xx-nand
> >
Thanks,
Miquèl
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply [flat|nested] 39+ messages in thread
* Re: [PATCH v7 3/4] dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
@ 2023-06-01 7:40 ` Miquel Raynal
0 siblings, 0 replies; 39+ messages in thread
From: Miquel Raynal @ 2023-06-01 7:40 UTC (permalink / raw)
To: Chris Packham
Cc: richard, vigneshr, robh+dt, krzysztof.kozlowski+dt, conor+dt,
andrew, gregory.clement, sebastian.hesselbarth, linux-mtd,
devicetree, linux-kernel, linux-arm-kernel, enachman,
Vadym Kochan
Hi Chris,
Chris.Packham@alliedtelesis.co.nz wrote on Wed, 31 May 2023 22:43:46
+0000:
> Hi Miquel,
>
> On 31/05/23 11:54, Chris Packham wrote:
> > From: Vadym Kochan <vadym.kochan@plvision.eu>
> >
> > Switch the DT binding to a YAML schema to enable the DT validation.
> >
> > Dropped deprecated compatibles and properties described in txt file.
> >
> > Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
> > Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
> > ---
> <snip>
> > diff --git a/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> > new file mode 100644
> > index 000000000000..7cd4a2e99343
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> > @@ -0,0 +1,221 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/mtd/marvell,nand-controller.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Marvell NAND Flash Controller (NFC)
> > +
> > +maintainers:
> > + - Miquel Raynal <miquel.raynal@bootlin.com>
> > +
> > +properties:
> > + compatible:
> > + oneOf:
> > + - items:
> > + - const: marvell,armada-8k-nand-controller
> > + - const: marvell,armada370-nand-controller
>
> On this specific point. Was your intention to allow just the
> "marvell,armada-8k-nand-controller" compatible?
>
> I made it a list as the existing usage is `compatible =
> "marvell,armada-8k-nand-controller",
> "marvell,armada370-nand-controller";` but an earlier comment you made
> suggested that your intention was to allow just the 8k compatible on
> it's own.
To be honest I don't recall. Sometimes it's best to consider a version
of a controller to be a superset of another, in this case both
compatibles are welcome. I suggest you keep the description as it is.
> Looking at the driver it doesn't do any is_compatible() checks
> so I don't think it cares (currently).
>
> > + - enum:
> > + - marvell,armada370-nand-controller
> > + - marvell,pxa3xx-nand-controller
> > + - marvell,armada-8k-nand
> > + - marvell,armada370-nand
> > + - marvell,pxa3xx-nand
> >
Thanks,
Miquèl
^ permalink raw reply [flat|nested] 39+ messages in thread
* Re: [PATCH v7 3/4] dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
@ 2023-06-01 7:40 ` Miquel Raynal
0 siblings, 0 replies; 39+ messages in thread
From: Miquel Raynal @ 2023-06-01 7:40 UTC (permalink / raw)
To: Chris Packham
Cc: richard, vigneshr, robh+dt, krzysztof.kozlowski+dt, conor+dt,
andrew, gregory.clement, sebastian.hesselbarth, linux-mtd,
devicetree, linux-kernel, linux-arm-kernel, enachman,
Vadym Kochan
Hi Chris,
Chris.Packham@alliedtelesis.co.nz wrote on Wed, 31 May 2023 22:43:46
+0000:
> Hi Miquel,
>
> On 31/05/23 11:54, Chris Packham wrote:
> > From: Vadym Kochan <vadym.kochan@plvision.eu>
> >
> > Switch the DT binding to a YAML schema to enable the DT validation.
> >
> > Dropped deprecated compatibles and properties described in txt file.
> >
> > Signed-off-by: Vadym Kochan <vadym.kochan@plvision.eu>
> > Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
> > ---
> <snip>
> > diff --git a/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> > new file mode 100644
> > index 000000000000..7cd4a2e99343
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml
> > @@ -0,0 +1,221 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/mtd/marvell,nand-controller.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Marvell NAND Flash Controller (NFC)
> > +
> > +maintainers:
> > + - Miquel Raynal <miquel.raynal@bootlin.com>
> > +
> > +properties:
> > + compatible:
> > + oneOf:
> > + - items:
> > + - const: marvell,armada-8k-nand-controller
> > + - const: marvell,armada370-nand-controller
>
> On this specific point. Was your intention to allow just the
> "marvell,armada-8k-nand-controller" compatible?
>
> I made it a list as the existing usage is `compatible =
> "marvell,armada-8k-nand-controller",
> "marvell,armada370-nand-controller";` but an earlier comment you made
> suggested that your intention was to allow just the 8k compatible on
> it's own.
To be honest I don't recall. Sometimes it's best to consider a version
of a controller to be a superset of another, in this case both
compatibles are welcome. I suggest you keep the description as it is.
> Looking at the driver it doesn't do any is_compatible() checks
> so I don't think it cares (currently).
>
> > + - enum:
> > + - marvell,armada370-nand-controller
> > + - marvell,pxa3xx-nand-controller
> > + - marvell,armada-8k-nand
> > + - marvell,armada370-nand
> > + - marvell,pxa3xx-nand
> >
Thanks,
Miquèl
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 39+ messages in thread