| Message ID | 20230604121223.9625-11-stefan.wahren@i2se.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | ARM: dts: bcm283x: Improve device-trees and bindings | expand |
On Sun, Jun 04, 2023 at 02:12:23PM +0200, Stefan Wahren wrote: > Convert the DT binding document for bcm2835-system-timer from .txt > to YAML. > > Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> > --- > .../timer/brcm,bcm2835-system-timer.txt | 22 ---------- > .../timer/brcm,bcm2835-system-timer.yaml | 44 +++++++++++++++++++ > 2 files changed, 44 insertions(+), 22 deletions(-) > delete mode 100644 Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.txt > create mode 100644 Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.yaml > > diff --git a/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.txt b/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.txt > deleted file mode 100644 > index 844bd5fbd04c..000000000000 > --- a/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.txt > +++ /dev/null > @@ -1,22 +0,0 @@ > -BCM2835 System Timer > - > -The System Timer peripheral provides four 32-bit timer channels and a > -single 64-bit free running counter. Each channel has an output compare > -register, which is compared against the 32 least significant bits of the > -free running counter values, and generates an interrupt. > - > -Required properties: > - > -- compatible : should be "brcm,bcm2835-system-timer" > -- reg : Specifies base physical address and size of the registers. > -- interrupts : A list of 4 interrupt sinks; one per timer channel. > -- clock-frequency : The frequency of the clock that drives the counter, in Hz. > - > -Example: > - > -timer { > - compatible = "brcm,bcm2835-system-timer"; > - reg = <0x7e003000 0x1000>; > - interrupts = <1 0>, <1 1>, <1 2>, <1 3>; > - clock-frequency = <1000000>; > -}; > diff --git a/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.yaml b/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.yaml > new file mode 100644 > index 000000000000..555fca4897e7 > --- /dev/null > +++ b/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.yaml > @@ -0,0 +1,44 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/timer/brcm,bcm2835-system-timer.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: BCM2835 System Timer > + > +maintainers: > + - Stefan Wahren <stefan.wahren@i2se.com> > + > +description: > + The System Timer peripheral provides four 32-bit timer channels and a > + single 64-bit free running counter. Each channel has an output compare > + register, which is compared against the 32 least significant bits of the > + free running counter values, and generates an interrupt. > + > +properties: > + compatible: > + const: brcm,bcm2835-system-timer > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 4 Should list what each entry is. > + > + clock-frequency: true > + > +required: > + - compatible > + - reg > + - interrupts > + > +additionalProperties: false > + > +examples: > + - | > + timer@7e003000 { > + compatible = "brcm,bcm2835-system-timer"; > + reg = <0x7e003000 0x1000>; > + interrupts = <1 0>, <1 1>, <1 2>, <1 3>; > + clock-frequency = <1000000>; > + }; > -- > 2.34.1 >
diff --git a/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.txt b/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.txt deleted file mode 100644 index 844bd5fbd04c..000000000000 --- a/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.txt +++ /dev/null @@ -1,22 +0,0 @@ -BCM2835 System Timer - -The System Timer peripheral provides four 32-bit timer channels and a -single 64-bit free running counter. Each channel has an output compare -register, which is compared against the 32 least significant bits of the -free running counter values, and generates an interrupt. - -Required properties: - -- compatible : should be "brcm,bcm2835-system-timer" -- reg : Specifies base physical address and size of the registers. -- interrupts : A list of 4 interrupt sinks; one per timer channel. -- clock-frequency : The frequency of the clock that drives the counter, in Hz. - -Example: - -timer { - compatible = "brcm,bcm2835-system-timer"; - reg = <0x7e003000 0x1000>; - interrupts = <1 0>, <1 1>, <1 2>, <1 3>; - clock-frequency = <1000000>; -}; diff --git a/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.yaml b/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.yaml new file mode 100644 index 000000000000..555fca4897e7 --- /dev/null +++ b/Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.yaml @@ -0,0 +1,44 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/timer/brcm,bcm2835-system-timer.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: BCM2835 System Timer + +maintainers: + - Stefan Wahren <stefan.wahren@i2se.com> + +description: + The System Timer peripheral provides four 32-bit timer channels and a + single 64-bit free running counter. Each channel has an output compare + register, which is compared against the 32 least significant bits of the + free running counter values, and generates an interrupt. + +properties: + compatible: + const: brcm,bcm2835-system-timer + + reg: + maxItems: 1 + + interrupts: + maxItems: 4 + + clock-frequency: true + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + timer@7e003000 { + compatible = "brcm,bcm2835-system-timer"; + reg = <0x7e003000 0x1000>; + interrupts = <1 0>, <1 1>, <1 2>, <1 3>; + clock-frequency = <1000000>; + };
Convert the DT binding document for bcm2835-system-timer from .txt to YAML. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> --- .../timer/brcm,bcm2835-system-timer.txt | 22 ---------- .../timer/brcm,bcm2835-system-timer.yaml | 44 +++++++++++++++++++ 2 files changed, 44 insertions(+), 22 deletions(-) delete mode 100644 Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.txt create mode 100644 Documentation/devicetree/bindings/timer/brcm,bcm2835-system-timer.yaml