Hey Rob,
Thanks for taking time to review
the series.
On 2021-09-08 19:21, Rob Herring wrote:
On Mon, Sep 06, 2021 at 01:53:46PM +0530, Sibi Sankar wrote:
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@xxxxxxxxxxxxxx>
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
---
v6:
* Updated commit message to explain binding breakage. [Stephen]
.../devicetree/bindings/remoteproc/qcom,adsp.yaml | 61
+++++++++++-----------
1 file changed, 31 insertions(+), 30 deletions(-)
diff --git
a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
index 0c112f3264a9..0d2b5bd4907a 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
@@ -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.
+
[...]
@@ -511,6 +486,32 @@ allOf:
- const: mss_restart
- const: pdc_reset
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - qcom,sc7180-mpss-pas
+ - qcom,sc8180x-adsp-pas
+ - qcom,sc8180x-cdsp-pas
+ - qcom,sc8180x-mpss-pas
+ - qcom,sm8150-adsp-pas
+ - qcom,sm8150-cdsp-pas
+ - qcom,sm8150-mpss-pas
+ - qcom,sm8150-slpi-pas
+ - qcom,sm8250-adsp-pas
+ - qcom,sm8250-cdsp-pas
+ - qcom,sm8250-slpi-pas
+ - qcom,sm8350-adsp-pas
+ - qcom,sm8350-cdsp-pas
+ - qcom,sm8350-mpss-pas
+ - qcom,sm8350-slpi-pas
+ then:
+ properties:
+ qcom,qmp:
+ items:
+ - description: Reference to the AOSS side-channel message
RAM.
This doesn't do anything. The property is already allowed for all
compatibles. Perhaps you want to negate the if and put 'qcom,qmp:
false'
here.
sure will fix it in the next re-spin.
Rob
--
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a Linux Foundation Collaborative Project.
