| Message ID | 20220503105914.117625-3-chanho61.park@samsung.com (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | initial clock support for exynosauto v9 SoC | expand |
On 03/05/2022 12:59, Chanho Park wrote: > Add dt-schema for Exynos Auto v9 SoC clock controller. > > Signed-off-by: Chanho Park <chanho61.park@samsung.com> > --- > .../clock/samsung,exynosautov9-clock.yaml | 219 ++++++++++++++++++ > 1 file changed, 219 insertions(+) > create mode 100644 Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml > > diff --git a/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml > new file mode 100644 > index 000000000000..9f9cd8606728 > --- /dev/null > +++ b/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml > @@ -0,0 +1,219 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/clock/samsung,exynosautov9-clock.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Samsung Exynos Auto v9 SoC clock controller > + > +maintainers: > + - Chanho Park <chanho61.park@samsung.com> > + - Chanwoo Choi <cw00.choi@samsung.com> > + - Krzysztof Kozlowski <krzk@kernel.org> > + - Sylwester Nawrocki <s.nawrocki@samsung.com> > + - Tomasz Figa <tomasz.figa@gmail.com> > + > +description: | > + Exynos Auto v9 clock controller is comprised of several CMU units, generating > + clocks for different domains. Those CMU units are modeled as separate device > + tree nodes, and might depend on each other. Root clocks in that clock tree are > + two external clocks:: OSCCLK/XTCXO (26 MHz) and RTCCLK/XrtcXTI (32768 Hz). > + Those external clocks must be defined as fixed-rate clocks in dts. > + > + CMU_TOP is a top-level CMU, where all base clocks are prepared using PLLs and > + dividers; all other clocks of function blocks (other CMUs) are usually > + derived from CMU_TOP. > + > + Each clock is assigned an identifier and client nodes can use this identifier > + to specify the clock which they consume. All clocks available for usage > + in clock consumer nodes are defined as preprocessor macros in > + 'dt-bindings/clock/exynosautov9.h' header. The path is still wrong (and not full). Best regards, Krzysztof
> On 03/05/2022 12:59, Chanho Park wrote: > > Add dt-schema for Exynos Auto v9 SoC clock controller. > > > > Signed-off-by: Chanho Park <chanho61.park@samsung.com> > > --- > > .../clock/samsung,exynosautov9-clock.yaml | 219 ++++++++++++++++++ > > 1 file changed, 219 insertions(+) > > create mode 100644 > > Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yam > > l > > > > diff --git > > a/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.y > > aml > > b/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.y > > aml > > new file mode 100644 > > index 000000000000..9f9cd8606728 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clo > > +++ ck.yaml > > @@ -0,0 +1,219 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2 > > +--- > > +$id: > > +https://protect2.fireeye.com/v1/url?k=68882f86-3713169f-6889a4c9-000b > > +abff3793-6f47dff4d335ab23&q=1&e=233b57a5-86a2-45a5-a097-eea56e8b5b51& > > +u=http%3A%2F%2Fdevicetree.org%2Fschemas%2Fclock%2Fsamsung%2Cexynosaut > > +ov9-clock.yaml%23 > > +$schema: > > +https://protect2.fireeye.com/v1/url?k=a304fe06-fc9fc71f-a3057549-000b > > +abff3793-cb0414bca8edb007&q=1&e=233b57a5-86a2-45a5-a097-eea56e8b5b51& > > +u=http%3A%2F%2Fdevicetree.org%2Fmeta-schemas%2Fcore.yaml%23 > > + > > +title: Samsung Exynos Auto v9 SoC clock controller > > + > > +maintainers: > > + - Chanho Park <chanho61.park@samsung.com> > > + - Chanwoo Choi <cw00.choi@samsung.com> > > + - Krzysztof Kozlowski <krzk@kernel.org> > > + - Sylwester Nawrocki <s.nawrocki@samsung.com> > > + - Tomasz Figa <tomasz.figa@gmail.com> > > + > > +description: | > > + Exynos Auto v9 clock controller is comprised of several CMU units, > > +generating > > + clocks for different domains. Those CMU units are modeled as > > +separate device > > + tree nodes, and might depend on each other. Root clocks in that > > +clock tree are > > + two external clocks:: OSCCLK/XTCXO (26 MHz) and RTCCLK/XrtcXTI (32768 > Hz). > > + Those external clocks must be defined as fixed-rate clocks in dts. > > + > > + CMU_TOP is a top-level CMU, where all base clocks are prepared > > + using PLLs and dividers; all other clocks of function blocks (other > > + CMUs) are usually derived from CMU_TOP. > > + > > + Each clock is assigned an identifier and client nodes can use this > > + identifier to specify the clock which they consume. All clocks > > + available for usage in clock consumer nodes are defined as > > + preprocessor macros in 'dt-bindings/clock/exynosautov9.h' header. > > The path is still wrong (and not full). I forgot the description update. 'dt-bindings/clock/exynosautov9.h' -> 'include/dt-bindings/clock/samsung,exynosautov9.h' Best Regards, Chanho Park
diff --git a/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml new file mode 100644 index 000000000000..9f9cd8606728 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml @@ -0,0 +1,219 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/samsung,exynosautov9-clock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Samsung Exynos Auto v9 SoC clock controller + +maintainers: + - Chanho Park <chanho61.park@samsung.com> + - Chanwoo Choi <cw00.choi@samsung.com> + - Krzysztof Kozlowski <krzk@kernel.org> + - Sylwester Nawrocki <s.nawrocki@samsung.com> + - Tomasz Figa <tomasz.figa@gmail.com> + +description: | + Exynos Auto v9 clock controller is comprised of several CMU units, generating + clocks for different domains. Those CMU units are modeled as separate device + tree nodes, and might depend on each other. Root clocks in that clock tree are + two external clocks:: OSCCLK/XTCXO (26 MHz) and RTCCLK/XrtcXTI (32768 Hz). + Those external clocks must be defined as fixed-rate clocks in dts. + + CMU_TOP is a top-level CMU, where all base clocks are prepared using PLLs and + dividers; all other clocks of function blocks (other CMUs) are usually + derived from CMU_TOP. + + Each clock is assigned an identifier and client nodes can use this identifier + to specify the clock which they consume. All clocks available for usage + in clock consumer nodes are defined as preprocessor macros in + 'dt-bindings/clock/exynosautov9.h' header. + +properties: + compatible: + enum: + - samsung,exynosautov9-cmu-top + - samsung,exynosautov9-cmu-busmc + - samsung,exynosautov9-cmu-core + - samsung,exynosautov9-cmu-fsys2 + - samsung,exynosautov9-cmu-peric0 + - samsung,exynosautov9-cmu-peric1 + - samsung,exynosautov9-cmu-peris + + clocks: + minItems: 1 + maxItems: 5 + + clock-names: + minItems: 1 + maxItems: 5 + + "#clock-cells": + const: 1 + + reg: + maxItems: 1 + +allOf: + - if: + properties: + compatible: + contains: + const: samsung,exynosautov9-cmu-top + + then: + properties: + clocks: + items: + - description: External reference clock (26 MHz) + + clock-names: + items: + - const: oscclk + + - if: + properties: + compatible: + contains: + const: samsung,exynosautov9-cmu-busmc + + then: + properties: + clocks: + items: + - description: External reference clock (26 MHz) + - description: CMU_BUSMC bus clock (from CMU_TOP) + + clock-names: + items: + - const: oscclk + - const: dout_clkcmu_busmc_bus + + - if: + properties: + compatible: + contains: + const: samsung,exynosautov9-cmu-core + + then: + properties: + clocks: + items: + - description: External reference clock (26 MHz) + - description: CMU_CORE bus clock (from CMU_TOP) + + clock-names: + items: + - const: oscclk + - const: dout_clkcmu_core_bus + + - if: + properties: + compatible: + contains: + const: samsung,exynosautov9-cmu-fsys2 + + then: + properties: + clocks: + items: + - description: External reference clock (26 MHz) + - description: CMU_FSYS2 bus clock (from CMU_TOP) + - description: UFS clock (from CMU_TOP) + - description: Ethernet clock (from CMU_TOP) + + clock-names: + items: + - const: oscclk + - const: dout_clkcmu_fsys2_bus + - const: dout_fsys2_clkcmu_ufs_embd + - const: dout_fsys2_clkcmu_ethernet + + - if: + properties: + compatible: + contains: + const: samsung,exynosautov9-cmu-peric0 + + then: + properties: + clocks: + items: + - description: External reference clock (26 MHz) + - description: CMU_PERIC0 bus clock (from CMU_TOP) + - description: PERIC0 IP clock (from CMU_TOP) + + clock-names: + items: + - const: oscclk + - const: dout_clkcmu_peric0_bus + - const: dout_clkcmu_peric0_ip + + - if: + properties: + compatible: + contains: + const: samsung,exynosautov9-cmu-peric1 + + then: + properties: + clocks: + items: + - description: External reference clock (26 MHz) + - description: CMU_PERIC1 bus clock (from CMU_TOP) + - description: PERIC1 IP clock (from CMU_TOP) + + clock-names: + items: + - const: oscclk + - const: dout_clkcmu_peric1_bus + - const: dout_clkcmu_peric1_ip + + - if: + properties: + compatible: + contains: + const: samsung,exynosautov9-cmu-peris + + then: + properties: + clocks: + items: + - description: External reference clock (26 MHz) + - description: CMU_PERIS bus clock (from CMU_TOP) + + clock-names: + items: + - const: oscclk + - const: dout_clkcmu_peris_bus + +required: + - compatible + - "#clock-cells" + - clocks + - clock-names + - reg + +additionalProperties: false + +examples: + # Clock controller node for CMU_FSYS2 + - | + #include <dt-bindings/clock/samsung,exynosautov9.h> + + cmu_fsys2: clock-controller@17c00000 { + compatible = "samsung,exynosautov9-cmu-fsys2"; + reg = <0x17c00000 0x8000>; + #clock-cells = <1>; + + clocks = <&xtcxo>, + <&cmu_top DOUT_CLKCMU_FSYS2_BUS>, + <&cmu_top DOUT_CLKCMU_FSYS2_UFS_EMBD>, + <&cmu_top DOUT_CLKCMU_FSYS2_ETHERNET>; + clock-names = "oscclk", + "dout_clkcmu_fsys2_bus", + "dout_fsys2_clkcmu_ufs_embd", + "dout_fsys2_clkcmu_ethernet"; + }; + +...
Add dt-schema for Exynos Auto v9 SoC clock controller. Signed-off-by: Chanho Park <chanho61.park@samsung.com> --- .../clock/samsung,exynosautov9-clock.yaml | 219 ++++++++++++++++++ 1 file changed, 219 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/samsung,exynosautov9-clock.yaml