| Message ID | 20230921-rtc-7301-regwidth-v1-1-1900556181bf@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Support byte access in the RTC7301 driver | expand |
On Thu, Sep 21, 2023 at 10:27:42PM +0200, Linus Walleij wrote: > This rewrites the Epson RTC7301 bindings to use YAML schema, > and adds a property for "reg-io-width" as used in several > other bindings to account for different register strides. It'd probably be good to mention that there is hardware that needs this, rather that saying "other bindings use this". > > Signed-off-by: Linus Walleij <linus.walleij@linaro.org> > --- > .../devicetree/bindings/rtc/epson,rtc7301.txt | 16 ------- > .../devicetree/bindings/rtc/epson,rtc7301.yaml | 49 ++++++++++++++++++++++ > 2 files changed, 49 insertions(+), 16 deletions(-) > > diff --git a/Documentation/devicetree/bindings/rtc/epson,rtc7301.txt b/Documentation/devicetree/bindings/rtc/epson,rtc7301.txt > deleted file mode 100644 > index 5f9df3f1467c..000000000000 > --- a/Documentation/devicetree/bindings/rtc/epson,rtc7301.txt > +++ /dev/null > @@ -1,16 +0,0 @@ > -EPSON TOYOCOM RTC-7301SF/DG > - > -Required properties: > - > -- compatible: Should be "epson,rtc7301sf" or "epson,rtc7301dg" > -- reg: Specifies base physical address and size of the registers. > -- interrupts: A single interrupt specifier. > - > -Example: > - > -rtc: rtc@44a00000 { > - compatible = "epson,rtc7301dg"; > - reg = <0x44a00000 0x10000>; > - interrupt-parent = <&axi_intc_0>; > - interrupts = <3 2>; > -}; > diff --git a/Documentation/devicetree/bindings/rtc/epson,rtc7301.yaml b/Documentation/devicetree/bindings/rtc/epson,rtc7301.yaml > new file mode 100644 > index 000000000000..4bcf1716cab6 > --- /dev/null > +++ b/Documentation/devicetree/bindings/rtc/epson,rtc7301.yaml > @@ -0,0 +1,49 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/rtc/epson,rtc7301.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Epson Toyocom RTC-7301SF/DG > + > +description: The only difference between the two variants is the > + packaging. The DG variant is a DIL package, and the SF variant > + is a flat package. The lack of a \n after "description:" looks odd, and my OCD would like to have it. Otherwise, SGTM! Thanks, Conor. > + > +maintainers: > + - Akinobu Mita <akinobu.mita@gmail.com> > + > +properties: > + compatible: > + enum: > + - epson,rtc7301dg > + - epson,rtc7301sf > + > + reg: > + maxItems: 1 > + > + reg-io-width: > + description: > + The size (in bytes) of the IO accesses that should be performed > + on the device. > + enum: [1, 4] > + > + interrupts: > + maxItems: 1 > + > +required: > + - compatible > + - reg > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/interrupt-controller/irq.h> > + rtc: rtc@44a00000 { > + compatible = "epson,rtc7301dg"; > + reg = <0x44a00000 0x10000>; > + reg-io-width = <4>; > + interrupt-parent = <&axi_intc_0>; > + interrupts = <3 2>; > + }; > > -- > 2.41.0 >
On Thu, Sep 21, 2023 at 10:27:42PM +0200, Linus Walleij wrote: > This rewrites the Epson RTC7301 bindings to use YAML schema, > and adds a property for "reg-io-width" as used in several > other bindings to account for different register strides. > > Signed-off-by: Linus Walleij <linus.walleij@linaro.org> > --- > .../devicetree/bindings/rtc/epson,rtc7301.txt | 16 ------- > .../devicetree/bindings/rtc/epson,rtc7301.yaml | 49 ++++++++++++++++++++++ > 2 files changed, 49 insertions(+), 16 deletions(-) > > diff --git a/Documentation/devicetree/bindings/rtc/epson,rtc7301.txt b/Documentation/devicetree/bindings/rtc/epson,rtc7301.txt > deleted file mode 100644 > index 5f9df3f1467c..000000000000 > --- a/Documentation/devicetree/bindings/rtc/epson,rtc7301.txt > +++ /dev/null > @@ -1,16 +0,0 @@ > -EPSON TOYOCOM RTC-7301SF/DG > - > -Required properties: > - > -- compatible: Should be "epson,rtc7301sf" or "epson,rtc7301dg" > -- reg: Specifies base physical address and size of the registers. > -- interrupts: A single interrupt specifier. > - > -Example: > - > -rtc: rtc@44a00000 { > - compatible = "epson,rtc7301dg"; > - reg = <0x44a00000 0x10000>; > - interrupt-parent = <&axi_intc_0>; > - interrupts = <3 2>; > -}; > diff --git a/Documentation/devicetree/bindings/rtc/epson,rtc7301.yaml b/Documentation/devicetree/bindings/rtc/epson,rtc7301.yaml > new file mode 100644 > index 000000000000..4bcf1716cab6 > --- /dev/null > +++ b/Documentation/devicetree/bindings/rtc/epson,rtc7301.yaml > @@ -0,0 +1,49 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/rtc/epson,rtc7301.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Epson Toyocom RTC-7301SF/DG > + > +description: The only difference between the two variants is the > + packaging. The DG variant is a DIL package, and the SF variant > + is a flat package. > + > +maintainers: > + - Akinobu Mita <akinobu.mita@gmail.com> > + > +properties: > + compatible: > + enum: > + - epson,rtc7301dg > + - epson,rtc7301sf > + > + reg: > + maxItems: 1 > + > + reg-io-width: > + description: > + The size (in bytes) of the IO accesses that should be performed > + on the device. > + enum: [1, 4] What's the default? > + > + interrupts: > + maxItems: 1 > + > +required: > + - compatible > + - reg > + > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/interrupt-controller/irq.h> > + rtc: rtc@44a00000 { > + compatible = "epson,rtc7301dg"; > + reg = <0x44a00000 0x10000>; > + reg-io-width = <4>; > + interrupt-parent = <&axi_intc_0>; > + interrupts = <3 2>; > + }; > > -- > 2.41.0 >
On Fri, Sep 22, 2023 at 12:45 PM Conor Dooley <conor@kernel.org> wrote: > On Thu, Sep 21, 2023 at 10:27:42PM +0200, Linus Walleij wrote: > > This rewrites the Epson RTC7301 bindings to use YAML schema, > > and adds a property for "reg-io-width" as used in several > > other bindings to account for different register strides. > > It'd probably be good to mention that there is hardware that needs this, > rather that saying "other bindings use this". That is an explanation why I call it "reg-io-width", rather than, say "reg-stride-bytes" as there are other bindings that use this But I'll mention some hardware, no problem! Yours, Linus Walleij
diff --git a/Documentation/devicetree/bindings/rtc/epson,rtc7301.txt b/Documentation/devicetree/bindings/rtc/epson,rtc7301.txt deleted file mode 100644 index 5f9df3f1467c..000000000000 --- a/Documentation/devicetree/bindings/rtc/epson,rtc7301.txt +++ /dev/null @@ -1,16 +0,0 @@ -EPSON TOYOCOM RTC-7301SF/DG - -Required properties: - -- compatible: Should be "epson,rtc7301sf" or "epson,rtc7301dg" -- reg: Specifies base physical address and size of the registers. -- interrupts: A single interrupt specifier. - -Example: - -rtc: rtc@44a00000 { - compatible = "epson,rtc7301dg"; - reg = <0x44a00000 0x10000>; - interrupt-parent = <&axi_intc_0>; - interrupts = <3 2>; -}; diff --git a/Documentation/devicetree/bindings/rtc/epson,rtc7301.yaml b/Documentation/devicetree/bindings/rtc/epson,rtc7301.yaml new file mode 100644 index 000000000000..4bcf1716cab6 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/epson,rtc7301.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/rtc/epson,rtc7301.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Epson Toyocom RTC-7301SF/DG + +description: The only difference between the two variants is the + packaging. The DG variant is a DIL package, and the SF variant + is a flat package. + +maintainers: + - Akinobu Mita <akinobu.mita@gmail.com> + +properties: + compatible: + enum: + - epson,rtc7301dg + - epson,rtc7301sf + + reg: + maxItems: 1 + + reg-io-width: + description: + The size (in bytes) of the IO accesses that should be performed + on the device. + enum: [1, 4] + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + rtc: rtc@44a00000 { + compatible = "epson,rtc7301dg"; + reg = <0x44a00000 0x10000>; + reg-io-width = <4>; + interrupt-parent = <&axi_intc_0>; + interrupts = <3 2>; + };
This rewrites the Epson RTC7301 bindings to use YAML schema, and adds a property for "reg-io-width" as used in several other bindings to account for different register strides. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> --- .../devicetree/bindings/rtc/epson,rtc7301.txt | 16 ------- .../devicetree/bindings/rtc/epson,rtc7301.yaml | 49 ++++++++++++++++++++++ 2 files changed, 49 insertions(+), 16 deletions(-)