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From: Guru Das Srinagesh <quic_gurus@quicinc.com>
To: Andy Gross <agross@kernel.org>,
	Bjorn Andersson <andersson@kernel.org>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	<linux-arm-msm@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: David Heidelberg <david@ixit.cz>,
	Robert Marko <robimarko@gmail.com>,
	Rajendra Nayak <quic_rjendra@quicinc.com>,
	Elliot Berman <quic_eberman@quicinc.com>,
	Guru Das Srinagesh <quic_gurus@quicinc.com>
Subject: [RESEND PATCH v2 1/5] dt-bindings: firmware: qcom-scm: Add "allow-multi-call" property
Date: Tue, 30 Aug 2022 15:25:07 -0700	[thread overview]
Message-ID: <1661898311-30126-2-git-send-email-quic_gurus@quicinc.com> (raw)
In-Reply-To: <1661898311-30126-1-git-send-email-quic_gurus@quicinc.com>

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(+)

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:
-- 
2.7.4


  reply	other threads:[~2022-08-30 22:27 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-30 22:25 [RESEND PATCH v2 0/5] SCM: Add support for wait-queue aware firmware Guru Das Srinagesh
2022-08-30 22:25 ` Guru Das Srinagesh [this message]
2022-08-31  8:00   ` [RESEND PATCH v2 1/5] dt-bindings: firmware: qcom-scm: Add "allow-multi-call" property Krzysztof Kozlowski
2022-10-18  5:56     ` Sibi Sankar
2022-08-30 22:25 ` [RESEND PATCH v2 2/5] firmware: qcom: scm: Optionally remove SCM call serialization Guru Das Srinagesh
2022-08-31  8:06   ` Krzysztof Kozlowski
2022-08-30 22:25 ` [RESEND PATCH v2 3/5] dt-bindings: firmware: qcom-scm: Add optional interrupt Guru Das Srinagesh
2022-08-31  8:02   ` Krzysztof Kozlowski
2022-10-18  5:49     ` Sibi Sankar
2022-10-18 13:11       ` Krzysztof Kozlowski
2022-08-30 22:25 ` [RESEND PATCH v2 4/5] firmware: qcom: scm: Add wait-queue helper functions Guru Das Srinagesh
2022-08-31  0:32   ` kernel test robot
2022-08-31  6:30   ` kernel test robot
2022-10-19 22:52   ` Bjorn Andersson
2022-08-30 22:25 ` [RESEND PATCH v2 5/5] firmware: qcom: scm: Add wait-queue handling logic Guru Das Srinagesh
2022-10-19 23:23   ` Bjorn Andersson

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