From 119c632f12509eab4bc58daf629c4b16fffcedca Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 9 Nov 2020 12:38:26 +0100 Subject: dts: update to v5.10-rc1 Signed-off-by: Sascha Hauer --- .../opp/allwinner,sun50i-h6-operating-points.yaml | 4 +- dts/Bindings/opp/opp.txt | 53 +++++++++++++--------- 2 files changed, 35 insertions(+), 22 deletions(-) (limited to 'dts/Bindings/opp') diff --git a/dts/Bindings/opp/allwinner,sun50i-h6-operating-points.yaml b/dts/Bindings/opp/allwinner,sun50i-h6-operating-points.yaml index aef87a33a7..aeff2bd774 100644 --- a/dts/Bindings/opp/allwinner,sun50i-h6-operating-points.yaml +++ b/dts/Bindings/opp/allwinner,sun50i-h6-operating-points.yaml @@ -31,6 +31,8 @@ properties: Documentation/devicetree/bindings/nvmem/nvmem.txt and also examples below. + opp-shared: true + required: - compatible - nvmem-cells @@ -53,7 +55,7 @@ patternProperties: unevaluatedProperties: false -unevaluatedProperties: false +additionalProperties: false examples: - | diff --git a/dts/Bindings/opp/opp.txt b/dts/Bindings/opp/opp.txt index 9d16d417e9..9847dfeeff 100644 --- a/dts/Bindings/opp/opp.txt +++ b/dts/Bindings/opp/opp.txt @@ -154,25 +154,27 @@ Optional properties: - opp-suspend: Marks the OPP to be used during device suspend. If multiple OPPs in the table have this, the OPP with highest opp-hz will be used. -- opp-supported-hw: This enables us to select only a subset of OPPs from the - larger OPP table, based on what version of the hardware we are running on. We - still can't have multiple nodes with the same opp-hz value in OPP table. - - It's a user defined array containing a hierarchy of hardware version numbers, - supported by the OPP. For example: a platform with hierarchy of three levels - of versions (A, B and C), this field should be like , where X - corresponds to Version hierarchy A, Y corresponds to version hierarchy B and Z - corresponds to version hierarchy C. - - Each level of hierarchy is represented by a 32 bit value, and so there can be - only 32 different supported version per hierarchy. i.e. 1 bit per version. A - value of 0xFFFFFFFF will enable the OPP for all versions for that hierarchy - level. And a value of 0x00000000 will disable the OPP completely, and so we - never want that to happen. - - If 32 values aren't sufficient for a version hierarchy, than that version - hierarchy can be contained in multiple 32 bit values. i.e. in the - above example, Z1 & Z2 refer to the version hierarchy Z. +- opp-supported-hw: This property allows a platform to enable only a subset of + the OPPs from the larger set present in the OPP table, based on the current + version of the hardware (already known to the operating system). + + Each block present in the array of blocks in this property, represents a + sub-group of hardware versions supported by the OPP. i.e. , + , etc. The OPP will be enabled if _any_ of these sub-groups match + the hardware's version. + + Each sub-group is a platform defined array representing the hierarchy of + hardware versions supported by the platform. For a platform with three + hierarchical levels of version (X.Y.Z), this field shall look like + + opp-supported-hw = , , . + + Each level (eg. X1) in version hierarchy is represented by a 32 bit value, one + bit per version and so there can be maximum 32 versions per level. Logical AND + (&) operation is performed for each level with the hardware's level version + and a non-zero output for _all_ the levels in a sub-group means the OPP is + supported by hardware. A value of 0xFFFFFFFF for each level in the sub-group + will enable the OPP for all versions for the hardware. - status: Marks the node enabled/disabled. @@ -503,7 +505,6 @@ Example 5: opp-supported-hw */ opp-supported-hw = <0xF 0xFFFFFFFF 0xFFFFFFFF> opp-hz = /bits/ 64 <600000000>; - opp-microvolt = <915000 900000 925000>; ... }; @@ -516,7 +517,17 @@ Example 5: opp-supported-hw */ opp-supported-hw = <0x20 0xff0000ff 0x0000f4f0> opp-hz = /bits/ 64 <800000000>; - opp-microvolt = <915000 900000 925000>; + ... + }; + + opp-900000000 { + /* + * Supports: + * - All cuts and substrate where process version is 0x2. + * - All cuts and process where substrate version is 0x2. + */ + opp-supported-hw = <0xFFFFFFFF 0xFFFFFFFF 0x02>, <0xFFFFFFFF 0x01 0xFFFFFFFF> + opp-hz = /bits/ 64 <900000000>; ... }; }; -- cgit v1.2.3