| Message ID | 20240214-spmi-multi-master-support-v3-1-0bae0ef04faf@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | spmi: pmic-arb: Add support for multiple buses | expand |
On 14/02/2024 22:13, Abel Vesa wrote: > Add dedicated schema for PMIC ARB v7 as it allows multiple > buses by declaring them as child nodes. These child nodes > will follow the generic spmi bus bindings. > > Signed-off-by: Abel Vesa <abel.vesa@linaro.org> > --- Please use scripts/get_maintainers.pl to get a list of necessary people and lists to CC. It might happen, that command when run on an older kernel, gives you outdated entries. Therefore please be sure you base your patches on recent Linux kernel. Tools like b4 or scripts/get_maintainer.pl provide you proper list of people, so fix your workflow. Tools might also fail if you work on some ancient tree (don't, instead use mainline), work on fork of kernel (don't, instead use mainline) or you ignore some maintainers (really don't). Just use b4 and everything should be fine, although remember about `b4 prep --auto-to-cc` if you added new patches to the patchset. You missed at least devicetree list (maybe more), so this won't be tested by automated tooling. Performing review on untested code might be a waste of time, thus I will skip this patch entirely till you follow the process allowing the patch to be tested. Please kindly resend and include all necessary To/Cc entries. Best regards, Krzysztof
On 24-02-15 09:54:37, Krzysztof Kozlowski wrote: > On 14/02/2024 22:13, Abel Vesa wrote: > > Add dedicated schema for PMIC ARB v7 as it allows multiple > > buses by declaring them as child nodes. These child nodes > > will follow the generic spmi bus bindings. > > > > Signed-off-by: Abel Vesa <abel.vesa@linaro.org> > > --- > > Please use scripts/get_maintainers.pl to get a list of necessary people > and lists to CC. It might happen, that command when run on an older > kernel, gives you outdated entries. Therefore please be sure you base > your patches on recent Linux kernel. > > Tools like b4 or scripts/get_maintainer.pl provide you proper list of > people, so fix your workflow. Tools might also fail if you work on some > ancient tree (don't, instead use mainline), work on fork of kernel > (don't, instead use mainline) or you ignore some maintainers (really > don't). Just use b4 and everything should be fine, although remember > about `b4 prep --auto-to-cc` if you added new patches to the patchset. > > You missed at least devicetree list (maybe more), so this won't be > tested by automated tooling. Performing review on untested code might be > a waste of time, thus I will skip this patch entirely till you follow > the process allowing the patch to be tested. > > Please kindly resend and include all necessary To/Cc entries. > Forgot to run "b4 prep --auto-to-cc" AFTER I added the bindings patch. Sorry about that. Will do it for the next version. > > Best regards, > Krzysztof >
diff --git a/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb-v7.yaml b/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb-v7.yaml new file mode 100644 index 000000000000..8a93d2145aa5 --- /dev/null +++ b/Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb-v7.yaml @@ -0,0 +1,119 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spmi/qcom,spmi-pmic-arb-v7.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm SPMI Controller v7 (PMIC Arbiter) + +maintainers: + - Stephen Boyd <sboyd@kernel.org> + +description: | + The SPMI PMIC Arbiter v7 is found on Snapdragon chipsets. It is an SPMI + controller with wrapping arbitration logic to allow for multiple on-chip + devices to control up to 2 SPMI separate buses. + + The PMIC Arbiter can also act as an interrupt controller, providing interrupts + to slave devices. + +properties: + compatible: + const: qcom,spmi-pmic-arb-v7 + + reg: + items: + - description: core registers + - description: tx-channel per virtual slave regosters + - description: rx-channel (called observer) per virtual slave registers + + reg-names: + items: + - const: core + - const: chnls + - const: obsrvr + + ranges: true + + '#address-cells': + const: 2 + + '#size-cells': + const: 2 + + qcom,ee: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 5 + description: > + indicates the active Execution Environment identifier + + qcom,channel: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 5 + description: > + which of the PMIC Arb provided channels to use for accesses + +patternProperties: + "spmi@[0-1]$": + type: object + $ref: /schemas/spmi/spmi.yaml + +required: + - compatible + - reg-names + - qcom,ee + - qcom,channel + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + + spmi: arbiter@c400000 { + compatible = "qcom,spmi-pmic-arb-v7"; + reg = <0x0c400000 0x3000>, + <0x0c500000 0x4000000>, + <0x0c440000 0x80000>; + reg-names = "core", "chnls", "obsrvr"; + + qcom,ee = <0>; + qcom,channel = <0>; + + #address-cells = <2>; + #size-cells = <2>; + + spmi_bus0: spmi@0 { + reg = <0 0x0c42d000 0 0x4000>, + <0 0x0c4c0000 0 0x10000>; + reg-names = "cnfg", "intr"; + + interrupt-names = "periph_irq"; + interrupts-extended = <&pdc 1 IRQ_TYPE_LEVEL_HIGH>; + interrupt-controller; + #interrupt-cells = <4>; + + qcom,bus-id = <0>; + + #address-cells = <2>; + #size-cells = <0>; + }; + + spmi_bus1: spmi@1 { + reg = <0 0x0c432000 0 0x4000>, + <0 0x0c4d0000 0 0x10000>; + reg-names = "cnfg", "intr"; + + interrupt-names = "periph_irq"; + interrupts-extended = <&pdc 3 IRQ_TYPE_LEVEL_HIGH>; + interrupt-controller; + #interrupt-cells = <4>; + + qcom,bus-id = <1>; + + #address-cells = <2>; + #size-cells = <0>; + }; + };
Add dedicated schema for PMIC ARB v7 as it allows multiple buses by declaring them as child nodes. These child nodes will follow the generic spmi bus bindings. Signed-off-by: Abel Vesa <abel.vesa@linaro.org> --- .../bindings/spmi/qcom,spmi-pmic-arb-v7.yaml | 119 +++++++++++++++++++++ 1 file changed, 119 insertions(+)