Re: [PATCH v6 1/2] dt-binding: pinctrl: Add NPCM8XX pinctrl and GPIO documentation
From: Tomer Maimon <tmaimon77@gmail.com>
Date: 2023-08-28 10:28:04
Also in:
linux-gpio, lkml, openbmc
Hi Krzysztof, Thanks for your comments On Mon, 28 Aug 2023 at 10:10, Krzysztof Kozlowski [off-list ref] wrote:
On 27/08/2023 22:36, Tomer Maimon wrote:quoted
Added device tree binding documentation for Nuvoton Arbel BMC NPCM8XX pinmux and GPIO controller. Signed-off-by: Tomer Maimon <tmaimon77@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> ---quoted
+ '^pin': + $ref: pincfg-node.yaml# + + properties: + pins: + description: + A list of pins to configure in certain ways, such as enabling + debouncingWhat pin names are allowed?
Do you mean to describe all the allowed pin items?
for example:
items:
pattern:
'GPIO0/IOX1_DI/SMB6C_SDA/SMB18_SDA|GPIO1/IOX1_LD/SMB6C_SCL/SMB18_SCL'
or
items:
pattern: '^GPIO([0-9]|[0-9][0-9]|[1-2][0-4][0-9]|25[0-6])$'
is good enough?quoted
+ + bias-disable: true + + bias-pull-up: true + + bias-pull-down: true + + input-enable: true + + output-low: true + + output-high: true + + drive-push-pull: true + + drive-open-drain: true + + input-debounce: + description: + Debouncing periods in microseconds, one period per interrupt + bank found in the controller + $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 1 + maxItems: 4 + + slew-rate: + description: | + 0: Low rate + 1: High rate + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1] + + drive-strength: + enum: [ 0, 1, 2, 4, 8, 12 ] + + additionalProperties: false + +allOf: + - $ref: pinctrl.yaml# + +required: + - compatible + - ranges + - '#address-cells' + - '#size-cells' + - nuvoton,sysgcr + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/gpio/gpio.h> + + soc { + #address-cells = <2>; + #size-cells = <2>; + + pinctrl: pinctrl@f0800260 {Nothing improved here. Test your DTS. This is being reported - I checked.
what do you suggest since the pinctrl doesn't have a reg parameter, maybe pinctrl: pinctrl@0? BTW, I have run both dt_binding_check and W=1 dtbs_check, and didn't see an issue related to the pinctrl: pinctrl@f0800260, do I need to add another flag to see the issue?
quoted
+ compatible = "nuvoton,npcm845-pinctrl"; + ranges = <0x0 0x0 0xf0010000 0x8000>; + #address-cells = <1>; + #size-cells = <1>; + nuvoton,sysgcr = <&gcr>; + + gpio0: gpio@0 { + gpio-controller; + #gpio-cells = <2>; + reg = <0x0 0xB0>;Keep lowercase hex.
will be done in V7
Best regards, Krzysztof
Best regards, Tomer