aboutsummaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/clock/renesas,emev2-smu.yaml
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2021-07-03 10:54:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-07-03 10:54:08 -0700
commita70bb580bfeaead9f685d4c28f7cd685c905d8c3 (patch)
tree273252a458ac5349d6a6190c9b3a748407d060db /Documentation/devicetree/bindings/clock/renesas,emev2-smu.yaml
parentRevert "ALSA: usb-audio: Reduce latency at playback start" (diff)
parentdt-bindings: Fix 'unevaluatedProperties' errors in DT graph users (diff)
downloadlinux-dev-a70bb580bfeaead9f685d4c28f7cd685c905d8c3.tar.xz
linux-dev-a70bb580bfeaead9f685d4c28f7cd685c905d8c3.zip
Merge tag 'devicetree-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring: - Refine reserved memory nomap handling - Merge some PCI and non-PCI address handling implementations - Simplify of_address.h header ifdefs - Improve printk handling of some 64-bit types - Convert adi,adv7511, Arm ccree, Arm SCMI, Arm SCU, Arm TWD timer, Arm VIC, arm,sbsa-gwdt, Arm/Amlogic SCPI, Aspeed I2C, Broadcom iProc PWM, linaro,optee-tz, MDIO GPIO, Mediatek RNG, MTD physmap, NXP pcf8563/pcf85263/pcf85363, Renesas TPU, renesas,emev2-smu, renesas,r9a06g032-sysctrl, sysc-rmobile, Tegra20 EMC, TI AM56 PCI, TI OMAP mailbox, TI SCI bindings, virtio-mmio, Zynq FPGA, and ZynqMP RTC to DT schema - Convert mux and mux controller bindings to schema. This includes MDIO IIO, and I2C muxes. - Add Arm PL031 RTC binding schema - Add vendor prefixes for StarFive Technology Co. Ltd. and Insignal Ltd - Fix some stale doc references - Remove stale property-units.txt. Superseded by schema in dt-schema repo. - Fixes for 'unevaluatedProperties' handling (enabled with experimental json-schema support) - Drop redundant usage of minItems and maxItems across the tree - Update some examples to use bindings with a schema * tag 'devicetree-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (83 commits) dt-bindings: Fix 'unevaluatedProperties' errors in DT graph users dt-bindings: display: renesas,du: Fix 'ports' reference dt-bindings: media: adv7180: Add missing video-interfaces.yaml reference dt-bindings: crypto: ccree: Convert to json-schema dt-bindings: fpga: zynq: convert bindings to YAML dt-bindings: rtc: zynqmp: convert bindings to YAML dt-bindings: interrupt-controller: Convert ARM VIC to json-schema of: of_reserved_mem: mark nomap memory instead of removing of: of_reserved_mem: only call memblock_free for normal reserved memory dt-bindings: Drop redundant minItems/maxItems dt-bindings: spmi: Correct 'reg' schema of: reserved-memory: Add stub for RESERVEDMEM_OF_DECLARE() dt-bindings: clk: vc5: Fix example dt-bindings: timer: renesas,tmu: add r8a779a0 TMU support dt-bindings: drm: bridge: adi,adv7511.txt: convert to yaml dt-bindings: PCI: ti,am65: Convert PCIe host/endpoint mode dt-bindings to YAML of: Remove superfluous casts when printing u64 values of: Fix truncation of memory sizes on 32-bit platforms dt-bindings: rtc: nxp,pcf8563: Absorb pcf85263/pcf85363 bindings dt-bindings: pwm: Use examples with documented/matching schema ...
Diffstat (limited to 'Documentation/devicetree/bindings/clock/renesas,emev2-smu.yaml')
-rw-r--r--Documentation/devicetree/bindings/clock/renesas,emev2-smu.yaml140
1 files changed, 140 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/clock/renesas,emev2-smu.yaml b/Documentation/devicetree/bindings/clock/renesas,emev2-smu.yaml
new file mode 100644
index 000000000000..4d9a64800481
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/renesas,emev2-smu.yaml
@@ -0,0 +1,140 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/renesas,emev2-smu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas EMMA Mobile EV2 System Management Unit
+
+maintainers:
+ - Geert Uytterhoeven <geert+renesas@glider.be>
+ - Magnus Damm <magnus.damm@gmail.com>
+
+description: |
+ The System Management Unit is described in user's manual R19UH0037EJ1000_SMU.
+ This is not a clock provider, but clocks under SMU depend on it.
+
+properties:
+ compatible:
+ const: renesas,emev2-smu
+
+ reg:
+ maxItems: 1
+
+ '#address-cells':
+ const: 2
+
+ '#size-cells':
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - '#address-cells'
+ - '#size-cells'
+
+patternProperties:
+ ".*sclkdiv@.*":
+ type: object
+
+ description: |
+ Function block with an input mux and a divider, which corresponds to
+ "Serial clock generator" in fig. "Clock System Overview" of the manual,
+ and "xxx frequency division setting register" (XXXCLKDIV) registers.
+ This makes internal (neither input nor output) clock that is provided
+ to input of xxxGCLK block.
+
+ properties:
+ compatible:
+ const: renesas,emev2-smu-clkdiv
+
+ reg:
+ maxItems: 1
+ description:
+ Byte offset from SMU base and Bit position in the register.
+
+ clocks:
+ minItems: 1
+ maxItems: 4
+
+ '#clock-cells':
+ const: 0
+
+ required:
+ - compatible
+ - reg
+ - clocks
+ - '#clock-cells'
+
+ additionalProperties: false
+
+ ".*sclk@.*":
+ type: object
+
+ description: |
+ Clock gating node shown as "Clock stop processing block" in the
+ fig. "Clock System Overview" of the manual.
+ Registers are "xxx clock gate control register" (XXXGCLKCTRL).
+
+ properties:
+ compatible:
+ const: renesas,emev2-smu-gclk
+
+ reg:
+ maxItems: 1
+ description:
+ Byte offset from SMU base and Bit position in the register.
+
+ clocks:
+ maxItems: 1
+
+ '#clock-cells':
+ const: 0
+
+ required:
+ - compatible
+ - reg
+ - clocks
+ - '#clock-cells'
+
+ additionalProperties: false
+
+additionalProperties: true
+
+examples:
+ - |
+ // Example of clock-tree description:
+ //
+ // This describes a clock path in the clock tree
+ // c32ki -> pll3_fo -> usia_u0_sclkdiv -> usia_u0_sclk
+ clocks@e0110000 {
+ compatible = "renesas,emev2-smu";
+ reg = <0xe0110000 0x10000>;
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ c32ki: c32ki {
+ compatible = "fixed-clock";
+ clock-frequency = <32768>;
+ #clock-cells = <0>;
+ };
+ pll3_fo: pll3_fo {
+ compatible = "fixed-factor-clock";
+ clocks = <&c32ki>;
+ clock-div = <1>;
+ clock-mult = <7000>;
+ #clock-cells = <0>;
+ };
+ usia_u0_sclkdiv: usia_u0_sclkdiv@610,0 {
+ compatible = "renesas,emev2-smu-clkdiv";
+ reg = <0x610 0>;
+ clocks = <&pll3_fo>;
+ #clock-cells = <0>;
+ };
+ usia_u0_sclk: usia_u0_sclk@4a0,1 {
+ compatible = "renesas,emev2-smu-gclk";
+ reg = <0x4a0 1>;
+ clocks = <&usia_u0_sclkdiv>;
+ #clock-cells = <0>;
+ };
+ };