summaryrefslogtreecommitdiffstats
path: root/dts/Bindings/cpufreq
diff options
context:
space:
mode:
authorSascha Hauer <s.hauer@pengutronix.de>2021-10-04 16:10:53 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2021-10-05 13:50:03 +0200
commit618948e4e5b399295bbe56bfb30891790cae9232 (patch)
tree15b1424ce28f92fe546189d82b1f4d6258db5333 /dts/Bindings/cpufreq
parenta53e3c4e166e82e6abd8528c2dd1f91639407737 (diff)
downloadbarebox-618948e4e5b399295bbe56bfb30891790cae9232.tar.gz
barebox-618948e4e5b399295bbe56bfb30891790cae9232.tar.xz
dts: update to v5.15-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/cpufreq')
-rw-r--r--dts/Bindings/cpufreq/cpufreq-dt.txt2
-rw-r--r--dts/Bindings/cpufreq/cpufreq-mediatek-hw.yaml70
-rw-r--r--dts/Bindings/cpufreq/cpufreq-mediatek.txt2
-rw-r--r--dts/Bindings/cpufreq/cpufreq-st.txt6
-rw-r--r--dts/Bindings/cpufreq/nvidia,tegra20-cpufreq.txt2
5 files changed, 75 insertions, 7 deletions
diff --git a/dts/Bindings/cpufreq/cpufreq-dt.txt b/dts/Bindings/cpufreq/cpufreq-dt.txt
index 56f4423743..1d7e491676 100644
--- a/dts/Bindings/cpufreq/cpufreq-dt.txt
+++ b/dts/Bindings/cpufreq/cpufreq-dt.txt
@@ -11,7 +11,7 @@ Required properties:
- None
Optional properties:
-- operating-points: Refer to Documentation/devicetree/bindings/opp/opp.txt for
+- operating-points: Refer to Documentation/devicetree/bindings/opp/opp-v1.yaml for
details. OPPs *must* be supplied either via DT, i.e. this property, or
populated at runtime.
- clock-latency: Specify the possible maximum transition latency for clock,
diff --git a/dts/Bindings/cpufreq/cpufreq-mediatek-hw.yaml b/dts/Bindings/cpufreq/cpufreq-mediatek-hw.yaml
new file mode 100644
index 0000000000..9cd42a64b1
--- /dev/null
+++ b/dts/Bindings/cpufreq/cpufreq-mediatek-hw.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/cpufreq/cpufreq-mediatek-hw.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek's CPUFREQ Bindings
+
+maintainers:
+ - Hector Yuan <hector.yuan@mediatek.com>
+
+description:
+ CPUFREQ HW is a hardware engine used by MediaTek SoCs to
+ manage frequency in hardware. It is capable of controlling
+ frequency for multiple clusters.
+
+properties:
+ compatible:
+ const: mediatek,cpufreq-hw
+
+ reg:
+ minItems: 1
+ maxItems: 2
+ description:
+ Addresses and sizes for the memory of the HW bases in
+ each frequency domain. Each entry corresponds to
+ a register bank for each frequency domain present.
+
+ "#performance-domain-cells":
+ description:
+ Number of cells in a performance domain specifier.
+ Set const to 1 here for nodes providing multiple
+ performance domains.
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - "#performance-domain-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a55";
+ enable-method = "psci";
+ performance-domains = <&performance 0>;
+ reg = <0x000>;
+ };
+ };
+
+ /* ... */
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ performance: performance-controller@11bc00 {
+ compatible = "mediatek,cpufreq-hw";
+ reg = <0 0x0011bc10 0 0x120>, <0 0x0011bd30 0 0x120>;
+
+ #performance-domain-cells = <1>;
+ };
+ };
diff --git a/dts/Bindings/cpufreq/cpufreq-mediatek.txt b/dts/Bindings/cpufreq/cpufreq-mediatek.txt
index ef68711716..b8233ec91d 100644
--- a/dts/Bindings/cpufreq/cpufreq-mediatek.txt
+++ b/dts/Bindings/cpufreq/cpufreq-mediatek.txt
@@ -10,7 +10,7 @@ Required properties:
transition and not stable yet.
Please refer to Documentation/devicetree/bindings/clock/clock-bindings.txt for
generic clock consumer properties.
-- operating-points-v2: Please refer to Documentation/devicetree/bindings/opp/opp.txt
+- operating-points-v2: Please refer to Documentation/devicetree/bindings/opp/opp-v2.yaml
for detail.
- proc-supply: Regulator for Vproc of CPU cluster.
diff --git a/dts/Bindings/cpufreq/cpufreq-st.txt b/dts/Bindings/cpufreq/cpufreq-st.txt
index d91a02a3b6..6b0b452ace 100644
--- a/dts/Bindings/cpufreq/cpufreq-st.txt
+++ b/dts/Bindings/cpufreq/cpufreq-st.txt
@@ -6,8 +6,6 @@ from the SoC, then supplies the OPP framework with 'prop' and 'supported
hardware' information respectively. The framework is then able to read
the DT and operate in the usual way.
-For more information about the expected DT format [See: ../opp/opp.txt].
-
Frequency Scaling only
----------------------
@@ -15,7 +13,7 @@ No vendor specific driver required for this.
Located in CPU's node:
-- operating-points : [See: ../power/opp.txt]
+- operating-points : [See: ../power/opp-v1.yaml]
Example [safe]
--------------
@@ -37,7 +35,7 @@ This requires the ST CPUFreq driver to supply 'process' and 'version' info.
Located in CPU's node:
-- operating-points-v2 : [See ../power/opp.txt]
+- operating-points-v2 : [See ../power/opp-v2.yaml]
Example [unsafe]
----------------
diff --git a/dts/Bindings/cpufreq/nvidia,tegra20-cpufreq.txt b/dts/Bindings/cpufreq/nvidia,tegra20-cpufreq.txt
index 52a24b82fd..bdbfd7c361 100644
--- a/dts/Bindings/cpufreq/nvidia,tegra20-cpufreq.txt
+++ b/dts/Bindings/cpufreq/nvidia,tegra20-cpufreq.txt
@@ -4,7 +4,7 @@ Binding for NVIDIA Tegra20 CPUFreq
Required properties:
- clocks: Must contain an entry for the CPU clock.
See ../clocks/clock-bindings.txt for details.
-- operating-points-v2: See ../bindings/opp/opp.txt for details.
+- operating-points-v2: See ../bindings/opp/opp-v2.yaml for details.
- #cooling-cells: Should be 2. See ../thermal/thermal-cooling-devices.yaml for details.
For each opp entry in 'operating-points-v2' table: