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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-07 10:24:07 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-07 10:24:07 -0700 |
commit | 21c19bc7ee256094aba74af8d91a824da4bc36af (patch) | |
tree | 85c058588fc097fe6fd0f00caa200c7bd5ed658e /Documentation/devicetree | |
parent | b6ffe9ba46016f8351896ccee33bebcd0e5ea7c0 (diff) | |
parent | 25bfee16d5a3158086273cc51110c7470144c842 (diff) | |
download | linux-21c19bc7ee256094aba74af8d91a824da4bc36af.tar.bz2 |
Merge branch 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration
Pull mailbox updates from Jassi Brar:
- Minor improvement : avoid requiring unnecessary startup/shutdown
callback that many drivers seem to not need
- New controller driver for Qualcomm's APCS IPC
* 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
mailbox: Introduce Qualcomm APCS IPC driver
dt-bindings: mailbox: Introduce Qualcomm APCS global binding
mailbox: Make startup and shutdown ops optional
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"; + }; + |