diff mbox series

[v2,1/5] dt-bindings: firmware: qcom-scm: Add "allow-multi-call" property

Message ID 1658529438-9234-2-git-send-email-quic_gurus@quicinc.com
State Superseded
Headers show
Series SCM: Add support for wait-queue aware firmware | expand

Commit Message

Guru Das Srinagesh July 22, 2022, 10:37 p.m. UTC
For firmware that supports it, allow multiple SCM calls to be passed
down to it by removing the serialization lock in the SCM driver.

This patch is based on this YAML conversion patch [1] that is in-flight
currently.

[1] https://lore.kernel.org/lkml/20220708090431.30437-1-david@ixit.cz/

Signed-off-by: Guru Das Srinagesh <quic_gurus@quicinc.com>
---
 Documentation/devicetree/bindings/firmware/qcom,scm.yaml | 5 +++++
 1 file changed, 5 insertions(+)

Comments

Krzysztof Kozlowski Oct. 28, 2022, 5:04 p.m. UTC | #1
On 22/07/2022 18:37, Guru Das Srinagesh wrote:
> For firmware that supports it, allow multiple SCM calls to be passed
> down to it by removing the serialization lock in the SCM driver.
> 
> This patch is based on this YAML conversion patch [1] that is in-flight
> currently.
> 
> [1] https://lore.kernel.org/lkml/20220708090431.30437-1-david@ixit.cz/
> 
> Signed-off-by: Guru Das Srinagesh <quic_gurus@quicinc.com>
> ---
>  Documentation/devicetree/bindings/firmware/qcom,scm.yaml | 5 +++++
>  1 file changed, 5 insertions(+)

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kernel, gives you outdated entries.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.

Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.yaml b/Documentation/devicetree/bindings/firmware/qcom,scm.yaml
index 9fdeee0..e279fd2 100644
--- a/Documentation/devicetree/bindings/firmware/qcom,scm.yaml
+++ b/Documentation/devicetree/bindings/firmware/qcom,scm.yaml
@@ -70,6 +70,11 @@  properties:
   '#reset-cells':
     const: 1
 
+  allow-multi-call:
+    description:
+      Specify this flag to remove SCM call serialization. Need to ensure that
+      the firmware being used supports this feature first.
+
   qcom,dload-mode:
     $ref: /schemas/types.yaml#/definitions/phandle-array
     items: