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Date: Tue, 7 Jan 2020 06:01:48 +0000
From: Anson Huang <anson.huang@....com>
To: Rob Herring <robh@...nel.org>
CC: Aisheng Dong <aisheng.dong@....com>,
"festevam@...il.com" <festevam@...il.com>,
"shawnguo@...nel.org" <shawnguo@...nel.org>,
"stefan@...er.ch" <stefan@...er.ch>,
"kernel@...gutronix.de" <kernel@...gutronix.de>,
"linus.walleij@...aro.org" <linus.walleij@...aro.org>,
"mark.rutland@....com" <mark.rutland@....com>,
"s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
"catalin.marinas@....com" <catalin.marinas@....com>,
"will@...nel.org" <will@...nel.org>, Abel Vesa <abel.vesa@....com>,
"bjorn.andersson@...aro.org" <bjorn.andersson@...aro.org>,
"olof@...om.net" <olof@...om.net>,
"maxime@...no.tech" <maxime@...no.tech>,
Leonard Crestez <leonard.crestez@....com>,
"dinguyen@...nel.org" <dinguyen@...nel.org>,
"marcin.juszkiewicz@...aro.org" <marcin.juszkiewicz@...aro.org>,
"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH V3 1/3] dt-bindings: imx: Add pinctrl binding doc for
i.MX8MP
Hi, Rob
> Subject: Re: [PATCH V3 1/3] dt-bindings: imx: Add pinctrl binding doc for
> i.MX8MP
>
> On Mon, Jan 06, 2020 at 05:29:50PM +0800, Anson Huang wrote:
> > Add binding doc for i.MX8MP pinctrl driver.
> >
> > Signed-off-by: Anson Huang <Anson.Huang@....com>
> > Reviewed-by: Abel Vesa <abel.vesa@....com>
> > ---
> > Changes since V2:
> > - use DT schema instead of txt for binding doc.
> > ---
> > .../bindings/pinctrl/fsl,imx8mp-pinctrl.yaml | 65 ++
> > arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h | 931
> +++++++++++++++++++++
> > 2 files changed, 996 insertions(+)
> > create mode 100644
> > Documentation/devicetree/bindings/pinctrl/fsl,imx8mp-pinctrl.yaml
> > create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h
> >
> > diff --git
> > a/Documentation/devicetree/bindings/pinctrl/fsl,imx8mp-pinctrl.yaml
> > b/Documentation/devicetree/bindings/pinctrl/fsl,imx8mp-pinctrl.yaml
> > new file mode 100644
> > index 0000000..cdb6c21
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/pinctrl/fsl,imx8mp-pinctrl.yam
> > +++ l
> > @@ -0,0 +1,65 @@
> > +# SPDX-License-Identifier: GPL-2.0-or-later %YAML 1.2
> > +---
> > +$id:
> > +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> > +cetree.org%2Fschemas%2Fpinctrl%2Ffsl%2Cimx8mp-
> pinctrl.yaml%23&dat
> >
> +a=02%7C01%7Canson.huang%40nxp.com%7Cfacd4426e6e54bc5416b08d79
> 2f59319%
> >
> +7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C63713945576195750
> 5&s
> >
> +data=0O3w1U6vs9xVq6B%2BhyT4Nz5HdKuk6XDymPUg7wQy0lM%3D&
> reserved=0
> > +$schema:
> > +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> > +cetree.org%2Fmeta-
> schemas%2Fcore.yaml%23&data=02%7C01%7Canson.hua
> >
> +ng%40nxp.com%7Cfacd4426e6e54bc5416b08d792f59319%7C686ea1d3bc2b
> 4c6fa92
> >
> +cd99c5c301635%7C0%7C0%7C637139455761957505&sdata=XUN%2BG
> zMOqpVNRj
> > +UM1CO6CXPOMT72DtdefLs%2Bs%2BGPaGI%3D&reserved=0
> > +
> > +title: Freescale IMX8MP IOMUX Controller
> > +
> > +maintainers:
> > + - Anson Huang <Anson.Huang@....com>
> > +
> > +description:
> > + Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in
> > +this directory
> > + for common binding part and usage.
> > +
> > +properties:
> > + compatible:
> > + const: fsl,imx8mp-iomuxc
> > +
> > +# Client device subnode's properties
> > +patternProperties:
> > + '-grp$':
> > + type: object
> > + description:
> > + Pinctrl node's client devices use subnodes for desired pin configuration.
> > + Client device subnodes use below standard properties.
> > +
> > + properties:
> > + fsl,pins:
> > + $ref: /schemas/types.yaml#/definitions/string
>
> string or...
>
> > + description:
> > + each entry consists of 6 integers and represents the mux
> > + and config
>
> integers?
I think it should be uint32-array
>
> > + setting for one pin. The first 5 integers <mux_reg conf_reg input_reg
> > + mux_val input_val> are specified using a PIN_FUNC_ID macro, which
> can
> > + be found in <arch/arm64/boot/dts/freescale/imx8mp-pinfunc.h>.
> The last
> > + integer CONFIG is the pad setting value like pull-up on this pin.
> Please
> > + refer to i.MX8M Plus Reference Manual for detailed CONFIG settings.
> > +
> > + required:
> > + - fsl,pins
> > +
> > + additionalProperties: false
> > +
> > +required:
> > + - compatible
> > + - reg
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > + # Pinmux controller node
> > + - |
> > + iomuxc: pinctrl@...30000 {
> > + compatible = "fsl,imx8mp-iomuxc";
> > + reg = <0x30330000 0x10000>;
> > +
> > + pinctrl_uart2: uart2grp {
> > + fsl,pins = <
> > + MX8MP_IOMUXC_UART2_RXD__UART2_DCE_RX 0x49
> > + MX8MP_IOMUXC_UART2_TXD__UART2_DCE_TX 0x49
>
> Run 'make dt_binding_check'. Doesn't build:
>
> Error: Documentation/devicetree/bindings/pinctrl/fsl,imx8mp-
> pinctrl.example.dts:23.21-22 syntax error FATAL ERROR: Unable to parse
> input tree
I fix it by NOT using Macro Definition as below, but still have some build error which looks like
my environment issue, please help review V4, thanks.
fsl,pins = <
0x228 0x488 0x5F0 0x0 0x6 0x49
0x228 0x488 0x000 0x0 0x0 0x49
>;
CHKDT Documentation/devicetree/bindings/pinctrl/fsl,imx8mp-pinctrl.yaml
SCHEMA Documentation/devicetree/bindings/processed-schema.yaml
DTC Documentation/devicetree/bindings/pinctrl/fsl,imx8mp-pinctrl.example.dt.yaml
FATAL ERROR: Unknown output format "yaml"
scripts/Makefile.lib:310: recipe for target 'Documentation/devicetree/bindings/pinctrl/fsl,imx8mp-pinctrl.example.dt.yaml' failed
make[1]: *** [Documentation/devicetree/bindings/pinctrl/fsl,imx8mp-pinctrl.example.dt.yaml] Error 1
make[1]: *** Deleting file 'Documentation/devicetree/bindings/pinctrl/fsl,imx8mp-pinctrl.example.dt.yaml'
Makefile:1263: recipe for target 'dt_binding_check' failed
make: *** [dt_binding_check] Error 2
Thanks,
Anson
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