diff options
| author | Bjorn Andersson <bjorn.andersson@linaro.org> | 2017-05-28 01:14:03 +0200 |
|---|---|---|
| committer | Jassi Brar <jaswinder.singh@linaro.org> | 2017-06-14 14:17:13 +0200 |
| commit | f16c176e58d50e21d8b29323beee95e0771b1281 (patch) | |
| tree | 3296458f3aa69a6362d71afc7c39253000fe64cb /Documentation/devicetree | |
| parent | mailbox: Make startup and shutdown ops optional (diff) | |
| download | linux-f16c176e58d50e21d8b29323beee95e0771b1281.tar.xz linux-f16c176e58d50e21d8b29323beee95e0771b1281.zip | |
dt-bindings: mailbox: Introduce Qualcomm APCS global binding
Introduce a binding for the Qualcomm APCS global block, exposing a
mailbox for invoking interrupts on remote processors in the system.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt new file mode 100644 index 000000000000..fb961c310f44 --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt @@ -0,0 +1,46 @@ +Binding for the Qualcomm APCS global block +========================================== + +This binding describes the APCS "global" block found in various Qualcomm +platforms. + +- compatible: + Usage: required + Value type: <string> + Definition: must be one of: + "qcom,msm8916-apcs-kpss-global", + "qcom,msm8996-apcs-hmss-global" + +- reg: + Usage: required + Value type: <prop-encoded-array> + Definition: must specify the base address and size of the global block + +- #mbox-cells: + Usage: required + Value type: <u32> + Definition: as described in mailbox.txt, must be 1 + + += EXAMPLE +The following example describes the APCS HMSS found in MSM8996 and part of the +GLINK RPM referencing the "rpm_hlos" doorbell therein. + + apcs_glb: mailbox@9820000 { + compatible = "qcom,msm8996-apcs-hmss-global"; + reg = <0x9820000 0x1000>; + + #mbox-cells = <1>; + }; + + rpm-glink { + compatible = "qcom,glink-rpm"; + + interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>; + + qcom,rpm-msg-ram = <&rpm_msg_ram>; + + mboxes = <&apcs_glb 0>; + mbox-names = "rpm_hlos"; + }; + |