On Mon 23 Dec 21:32 PST 2019, Shyam Kumar Thella wrote: > QTI SDAM allows PMIC peripherals to access the shared memory that is > available on QTI PMICs. Add documentation for it. > > Signed-off-by: Shyam Kumar Thella <sthella@xxxxxxxxxxxxxx> > --- > .../devicetree/bindings/nvmem/qcom,spmi-sdam.yaml | 79 ++++++++++++++++++++++ > 1 file changed, 79 insertions(+) > create mode 100644 Documentation/devicetree/bindings/nvmem/qcom,spmi-sdam.yaml > > diff --git a/Documentation/devicetree/bindings/nvmem/qcom,spmi-sdam.yaml b/Documentation/devicetree/bindings/nvmem/qcom,spmi-sdam.yaml > new file mode 100644 > index 0000000..8961a99 > --- /dev/null > +++ b/Documentation/devicetree/bindings/nvmem/qcom,spmi-sdam.yaml > @@ -0,0 +1,79 @@ > +# SPDX-License-Identifier: GPL-2.0 > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/nvmem/qcom,spmi-sdam.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Qualcomm Technologies, Inc. SPMI SDAM DT bindings > + > +maintainers: > + - Shyam Kumar Thella <sthella@xxxxxxxxxxxxxx> > + > +description: | > + The SDAM provides scratch register space for the PMIC clients. This > + memory can be used by software to store information or communicate > + to/from the PBUS. > + > +allOf: > + - $ref: "nvmem.yaml#" > + > +properties: > + compatible: > + enum: > + - qcom,spmi-sdam > + > + reg: > + maxItems: 1 > + > + "#address-cells": > + const: 1 > + > + "#size-cells": > + const: 1 > + > +required: > + - compatible > + - reg > + > +patternProperties: > + "^.*@[0-9a-f]+$": > + type: object > + > + properties: > + reg: > + maxItems: 1 > + description: > + Offset and size in bytes within the storage device. > + > + bits: > + maxItems: 1 > + items: > + items: > + - minimum: 0 > + maximum: 7 > + description: > + Offset in bit within the address range specified by reg. > + - minimum: 1 > + description: > + Size in bit within the address range specified by reg. > + > + required: > + - reg > + > + additionalProperties: false > + > +examples: > + - | > + sdam_1: nvram@b000 { > + #address-cells = <1>; > + #size-cells = <1>; > + compatible = "qcom,spmi-sdam"; > + reg = <0xb000 0x100>; > + > + /* Data cells */ > + restart_reason: restart@50 { So this register has moved out of the PON register set? What component in the system is going to reference this? Should it have a compatible, in the same way as "syscon-reboot-mode" does? Regards, Bjorn > + reg = <0x50 0x1>; > + bits = <7 2>; > + }; > + }; > +... > -- > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > a Linux Foundation Collaborative Project
