From 55fc280e951ab2b39f3dcb640edc1b1eebc6d173 Mon Sep 17 00:00:00 2001 From: "Rob Herring (Arm)" Date: Mon, 31 Aug 2026 14:43:51 -0500 Subject: Input: tsc2007 - read "ti,poll-period" as u32 The "ti,poll-period" property is documented as a normal uint32 cell. The driver used a u64 helper, which makes the helper type disagree with the schema even though the stored value is still small. Read "ti,poll-period" with the u32 helper matching the documented DT cell size. Assisted-by: Codex:gpt-5-5 Signed-off-by: Rob Herring (Arm) Link: https://patch.msgid.link/20260831194352.1185860-1-robh@kernel.org Signed-off-by: Dmitry Torokhov --- Documentation/devicetree/bindings/csky/cpus.txt | 73 +++++++++++++++++++++++++ Documentation/devicetree/bindings/csky/pmu.txt | 38 +++++++++++++ 2 files changed, 111 insertions(+) create mode 100644 Documentation/devicetree/bindings/csky/cpus.txt create mode 100644 Documentation/devicetree/bindings/csky/pmu.txt (limited to 'Documentation/devicetree/bindings/csky') diff --git a/Documentation/devicetree/bindings/csky/cpus.txt b/Documentation/devicetree/bindings/csky/cpus.txt new file mode 100644 index 000000000..ae79412f2 --- /dev/null +++ b/Documentation/devicetree/bindings/csky/cpus.txt @@ -0,0 +1,73 @@ +================== +C-SKY CPU Bindings +================== + +The device tree allows to describe the layout of CPUs in a system through +the "cpus" node, which in turn contains a number of subnodes (ie "cpu") +defining properties for every cpu. + +Only SMP system need to care about the cpus node and single processor +needn't define cpus node at all. + +===================================== +cpus and cpu node bindings definition +===================================== + +- cpus node + + Description: Container of cpu nodes + + The node name must be "cpus". + + A cpus node must define the following properties: + + - #address-cells + Usage: required + Value type: + Definition: must be set to 1 + - #size-cells + Usage: required + Value type: + Definition: must be set to 0 + +- cpu node + + Description: Describes one of SMP cores + + PROPERTIES + + - device_type + Usage: required + Value type: + Definition: must be "cpu" + - reg + Usage: required + Value type: + Definition: CPU index + - compatible: + Usage: required + Value type: + Definition: must contain "csky", eg: + "csky,610" + "csky,807" + "csky,810" + "csky,860" + +Example: +-------- + + cpus { + #address-cells = <1>; + #size-cells = <0>; + cpu@0 { + device_type = "cpu"; + reg = <0>; + status = "ok"; + }; + + cpu@1 { + device_type = "cpu"; + reg = <1>; + status = "ok"; + }; + }; diff --git a/Documentation/devicetree/bindings/csky/pmu.txt b/Documentation/devicetree/bindings/csky/pmu.txt new file mode 100644 index 000000000..728d05ca6 --- /dev/null +++ b/Documentation/devicetree/bindings/csky/pmu.txt @@ -0,0 +1,38 @@ +=============================== +C-SKY Performance Monitor Units +=============================== + +C-SKY Performance Monitor is designed for ck807/ck810/ck860 SMP soc and +it could count cpu's events for helping analysis performance issues. + +============================ +PMU node bindings definition +============================ + + Description: Describes PMU + + PROPERTIES + + - compatible + Usage: required + Value type: + Definition: must be "csky,csky-pmu" + - interrupts + Usage: required + Value type: + Definition: must be pmu irq num defined by soc + - count-width + Usage: optional + Value type: + Definition: the width of pmu counter + +Examples: +--------- +#include + + pmu: performace-monitor { + compatible = "csky,csky-pmu"; + interrupts = <23 IRQ_TYPE_EDGE_RISING>; + interrupt-parent = <&intc>; + count-width = <48>; + }; -- cgit v1.3.1