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dt-bindings: remoteproc: qcom: pas: Add QMP property

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The load state power-domain, used by the co-processors to notify the
Always on Subsystem (AOSS) that a particular co-processor is up/down,
suffers from the side-effect of changing states during suspend/resume.
However the co-processors enter low-power modes independent to that of
the application processor and their states are expected to remain
unaltered across system suspend/resume cycles. To achieve this behavior
let's drop the load state power-domain and replace them with the qmp
property for all SoCs supporting low power mode signalling.

Due to the current broken load state implementation, we can afford the
binding breakage that ensues and the remoteproc functionality will remain
the same when using newer kernels with older dtbs.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1631800770-371-3-git-send-email-sibis@codeaurora.org
This commit is contained in:
Sibi Sankar 2021-09-16 19:29:19 +05:30 committed by Bjorn Andersson
parent 7b4d7894c6
commit e73c632b18
1 changed files with 25 additions and 31 deletions
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56
Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
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@ -93,6 +93,10 @@ properties:
maxItems: 1
description: Reference to the reserved-memory for the Hexagon core
qcom,qmp:
$ref: /schemas/types.yaml#/definitions/phandle
description: Reference to the AOSS side-channel message RAM.
qcom,smem-states:
$ref: /schemas/types.yaml#/definitions/phandle-array
description: States used by the AP to signal the Hexagon core
@ -369,13 +373,11 @@ allOf:
properties:
power-domains:
items:
- description: Load State power domain
- description: CX power domain
- description: MX power domain
- description: MSS power domain
power-domain-names:
items:
- const: load_state
- const: cx
- const: mx
- const: mss
@ -391,32 +393,7 @@ allOf:
properties:
power-domains:
items:
- description: Load State power domain
- description: CX power domain
power-domain-names:
items:
- const: load_state
- const: cx
- if:
properties:
compatible:
contains:
enum:
- qcom,sm8150-mpss-pas
- qcom,sm8350-mpss-pas
then:
properties:
power-domains:
items:
- description: Load State power domain
- description: CX power domain
- description: MSS power domain
power-domain-names:
items:
- const: load_state
- const: cx
- const: mss
- if:
properties:
@ -424,6 +401,8 @@ allOf:
contains:
enum:
- qcom,sdx55-mpss-pas
- qcom,sm8150-mpss-pas
- qcom,sm8350-mpss-pas
then:
properties:
power-domains:
@ -451,12 +430,10 @@ allOf:
properties:
power-domains:
items:
- description: Load State power domain
- description: LCX power domain
- description: LMX power domain
power-domain-names:
items:
- const: load_state
- const: lcx
- const: lmx
@ -470,12 +447,10 @@ allOf:
properties:
power-domains:
items:
- description: Load State power domain
- description: CX power domain
- description: MXC power domain
power-domain-names:
items:
- const: load_state
- const: cx
- const: mxc
@ -511,6 +486,25 @@ allOf:
- const: mss_restart
- const: pdc_reset
- if:
properties:
compatible:
contains:
enum:
- qcom,msm8974-adsp-pil
- qcom,msm8996-adsp-pil
- qcom,msm8996-slpi-pil
- qcom,msm8998-adsp-pas
- qcom,msm8998-slpi-pas
- qcom,qcs404-adsp-pas
- qcom,qcs404-cdsp-pas
- qcom,qcs404-wcss-pas
- qcom,sdm660-adsp-pas
- qcom,sdx55-mpss-pas
then:
properties:
qcom,qmp: false
examples:
- |
#include <dt-bindings/clock/qcom,rpmcc.h>