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author | Olof Johansson <olof@lixom.net> | 2020-01-16 15:47:09 -0800 |
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committer | Olof Johansson <olof@lixom.net> | 2020-01-16 15:47:10 -0800 |
commit | a0be47376f1d12c2c9cef8a3857ccf6fabc6c3cb (patch) | |
tree | f092ae03545ce4c23969e88e983d59b28846740e /Documentation | |
parent | 5a74e85ae4baa4aac5b43b4ced0a322d9d400430 (diff) | |
parent | c3dd3315ab58b2cfa1916df55b0d0f9fbd94266f (diff) | |
download | linux-a0be47376f1d12c2c9cef8a3857ccf6fabc6c3cb.tar.gz linux-a0be47376f1d12c2c9cef8a3857ccf6fabc6c3cb.tar.bz2 linux-a0be47376f1d12c2c9cef8a3857ccf6fabc6c3cb.zip |
Merge tag 'amlogic-dt' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/dt
ARM: dts: Amlogic updates for v5.6
- add DDR clock controller
- GPU OPP updates
* tag 'amlogic-dt' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
ARM: dts: meson8b: use the actual frequency for the GPU's 364MHz OPP
ARM: dts: meson8: use the actual frequency for the GPU's 182.1MHz OPP
ARM: dts: meson8b: fix the clock controller compatible string
ARM: dts: meson8b: add the DDR clock controller
ARM: dts: meson8: add the DDR clock controller
ARM: dts: meson: provide the XTAL clock using a fixed-clock
dt-bindings: clock: meson8b: add the clock inputs
dt-bindings: clock: add the Amlogic Meson8 DDR clock controller binding
Link: https://lore.kernel.org/r/7hwo9udi7m.fsf@baylibre.com
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/devicetree/bindings/clock/amlogic,meson8-ddr-clkc.yaml | 50 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt | 5 |
2 files changed, 55 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/clock/amlogic,meson8-ddr-clkc.yaml b/Documentation/devicetree/bindings/clock/amlogic,meson8-ddr-clkc.yaml new file mode 100644 index 000000000000..4b8669f870ec --- /dev/null +++ b/Documentation/devicetree/bindings/clock/amlogic,meson8-ddr-clkc.yaml @@ -0,0 +1,50 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/amlogic,meson8-ddr-clkc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Amlogic DDR Clock Controller Device Tree Bindings + +maintainers: + - Martin Blumenstingl <martin.blumenstingl@googlemail.com> + +properties: + compatible: + enum: + - amlogic,meson8-ddr-clkc + - amlogic,meson8b-ddr-clkc + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: xtal + + "#clock-cells": + const: 1 + +required: + - compatible + - reg + - clocks + - clock-names + - "#clock-cells" + +additionalProperties: false + +examples: + - | + ddr_clkc: clock-controller@400 { + compatible = "amlogic,meson8-ddr-clkc"; + reg = <0x400 0x20>; + clocks = <&xtal>; + clock-names = "xtal"; + #clock-cells = <1>; + }; + +... diff --git a/Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt b/Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt index 4d94091c1d2d..cc51e4746b3b 100644 --- a/Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt +++ b/Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt @@ -11,6 +11,11 @@ Required Properties: - "amlogic,meson8m2-clkc" for Meson8m2 (S812) SoCs - #clock-cells: should be 1. - #reset-cells: should be 1. +- clocks: list of clock phandles, one for each entry in clock-names +- clock-names: should contain the following: + * "xtal": the 24MHz system oscillator + * "ddr_pll": the DDR PLL clock + * "clk_32k": (if present) the 32kHz clock signal from GPIOAO_6 (CLK_32K_IN) Parent node should have the following properties : - compatible: "amlogic,meson-hhi-sysctrl", "simple-mfd", "syscon" |