[PATCH 2/8] dt-bindings: pinctrl: aspeed: Convert AST2400 bindings to json-schema
robh+dt at kernel.org
Fri Jun 28 00:09:57 AEST 2019
On Wed, Jun 26, 2019 at 6:44 PM Andrew Jeffery <andrew at aj.id.au> wrote:
> On Wed, 26 Jun 2019, at 23:17, Rob Herring wrote:
> > On Wed, Jun 26, 2019 at 1:21 AM Andrew Jeffery <andrew at aj.id.au> wrote:
> > >
> > > Convert ASPEED pinctrl bindings to DT schema format using json-schema
> > BTW, ASPEED is one of the remaining platforms needing the top-level
> > board bindings converted.
> Okay, I'll put together patches to fix that.
> > >
> > > Signed-off-by: Andrew Jeffery <andrew at aj.id.au>
> > > ---
> > > .../pinctrl/aspeed,ast2400-pinctrl.txt | 80 -------------------
> > > .../pinctrl/aspeed,ast2400-pinctrl.yaml | 73 +++++++++++++++++
> > > 2 files changed, 73 insertions(+), 80 deletions(-)
> > > delete mode 100644 Documentation/devicetree/bindings/pinctrl/aspeed,ast2400-pinctrl.txt
> > > create mode 100644 Documentation/devicetree/bindings/pinctrl/aspeed,ast2400-pinctrl.yaml
> > > diff --git a/Documentation/devicetree/bindings/pinctrl/aspeed,ast2400-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2400-pinctrl.yaml
> > > new file mode 100644
> > > index 000000000000..3b8cf3e51506
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/pinctrl/aspeed,ast2400-pinctrl.yaml
> > > @@ -0,0 +1,73 @@
> > > +# SPDX-License-Identifier: GPL-2.0+
> > Do you have rights to change the license?
> Where are you coming from with this question? The bindings previously didn't list a
> license, is there some implicit license for them? I would have thought it was GPL-2.0?
Yes, it is implicitly GPL-2.0 since it is in the kernel tree and has
no other license text.
> IBM's (my employer's) preferred contribution license is GPL 2.0-or-later, so I was just
> adding the SPDX marker to clarify.
Adding 'or-later' is a licensing change. If IBM is the copyright
holder on all this file, then that is fine.
> > If so, the preference is to
> > dual license with (GPL-2.0 OR BSD-2-Clause).
> You're asking if I have the power to relicense so I can dual license it this way?
It would probably be up to your company. If that's an issue, then not
dual licensing is fine. I don't want to hold things up on that.
> > > +required:
> > > + - compatible
> > > +
> > > +description: |+
> > description goes before properties.
> Okay. I wouldn't have thought the ordering mattered. Is this just a preference?
Yes, just a preference.
> The tools seemed to run fine as is.
> I'll re-order it regardless.
> > > + The pin controller node should be the child of a syscon node with the
> > > + required property:
> > > +
> > > + - compatible: Should be one of the following:
> > > + "aspeed,ast2400-scu", "syscon", "simple-mfd"
> > > + "aspeed,g4-scu", "syscon", "simple-mfd"
> > > +
> > > + Refer to the the bindings described in
> > > + Documentation/devicetree/bindings/mfd/syscon.txt
> > > +
> > > + For the AST2400 pinmux, each mux function has only one associated pin group.
> > > + Each group is named by its function. The following values for the function
> > > + and groups properties are supported:
> > > +
> > > + ACPI ADC0 ADC1 ADC10 ADC11 ADC12 ADC13 ADC14 ADC15 ADC2 ADC3 ADC4 ADC5 ADC6
> > > + ADC7 ADC8 ADC9 BMCINT DDCCLK DDCDAT EXTRST FLACK FLBUSY FLWP GPID GPID0 GPID2
> > > + GPID4 GPID6 GPIE0 GPIE2 GPIE4 GPIE6 I2C10 I2C11 I2C12 I2C13 I2C14 I2C3 I2C4
> > > + I2C5 I2C6 I2C7 I2C8 I2C9 LPCPD LPCPME LPCRST LPCSMI MAC1LINK MAC2LINK MDIO1
> > > + MDIO2 NCTS1 NCTS2 NCTS3 NCTS4 NDCD1 NDCD2 NDCD3 NDCD4 NDSR1 NDSR2 NDSR3 NDSR4
> > > + NDTR1 NDTR2 NDTR3 NDTR4 NDTS4 NRI1 NRI2 NRI3 NRI4 NRTS1 NRTS2 NRTS3 OSCCLK
> > > + PWM0 PWM1 PWM2 PWM3 PWM4 PWM5 PWM6 PWM7 RGMII1 RGMII2 RMII1 RMII2 ROM16 ROM8
> > > + ROMCS1 ROMCS2 ROMCS3 ROMCS4 RXD1 RXD2 RXD3 RXD4 SALT1 SALT2 SALT3 SALT4 SD1
> > > + SD2 SGPMCK SGPMI SGPMLD SGPMO SGPSCK SGPSI0 SGPSI1 SGPSLD SIOONCTRL SIOPBI
> > > + SIOPBO SIOPWREQ SIOPWRGD SIOS3 SIOS5 SIOSCI SPI1 SPI1DEBUG SPI1PASSTHRU
> > > + SPICS1 TIMER3 TIMER4 TIMER5 TIMER6 TIMER7 TIMER8 TXD1 TXD2 TXD3 TXD4 UART6
> > > + USB11D1 USB11H2 USB2D1 USB2H1 USBCKI VGABIOS_ROM VGAHS VGAVS VPI18 VPI24
> > > + VPI30 VPO12 VPO24 WDTRST1 WDTRST2
> > This should be a schema.
> Yeah, I covered this in my cover letter. I was hoping to get away without
> that for the moment as this seems like the first pinctrl binding to be
> converted, however if you insist...
That generally doesn't matter. You can assume common properties will
have a schema and you don't need to define common constraints (like
'function' is a string array). You only need what is specific to this
binding which is possible values.
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