From: Alex Elder <elder@linaro.org>
To: robh+dt@kernel.org, davem@davemloft.net, kuba@kernel.org
Cc: bjorn.andersson@linaro.org, agross@kernel.org, mka@chromium.org,
evgreen@chromium.org, cpratapa@codeaurora.org,
avuyyuru@codeaurora.org, jponduru@codeaurora.org,
subashab@codeaurora.org, elder@kernel.org,
netdev@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH net v2 1/2] dt-bindings: net: qcom,ipa: add optional qcom,qmp property
Date: Tue, 1 Feb 2022 09:02:04 -0600 [thread overview]
Message-ID: <20220201150205.468403-2-elder@linaro.org> (raw)
In-Reply-To: <20220201150205.468403-1-elder@linaro.org>
For some systems, the IPA driver must make a request to ensure that
its registers are retained across power collapse of the IPA hardware.
On such systems, we'll use the existence of the "qcom,qmp" property
as a signal that this request is required.
Signed-off-by: Alex Elder <elder@linaro.org>
---
Documentation/devicetree/bindings/net/qcom,ipa.yaml | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/qcom,ipa.yaml b/Documentation/devicetree/bindings/net/qcom,ipa.yaml
index b86edf67ce626..58ecc62adfaae 100644
--- a/Documentation/devicetree/bindings/net/qcom,ipa.yaml
+++ b/Documentation/devicetree/bindings/net/qcom,ipa.yaml
@@ -107,6 +107,10 @@ properties:
- const: imem
- const: config
+ qcom,qmp:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description: phandle to the AOSS side-channel message RAM
+
qcom,smem-states:
$ref: /schemas/types.yaml#/definitions/phandle-array
description: State bits used in by the AP to signal the modem.
@@ -222,6 +226,8 @@ examples:
"imem",
"config";
+ qcom,qmp = <&aoss_qmp>;
+
qcom,smem-states = <&ipa_smp2p_out 0>,
<&ipa_smp2p_out 1>;
qcom,smem-state-names = "ipa-clock-enabled-valid",
--
2.32.0
next prev parent reply other threads:[~2022-02-01 15:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-01 15:02 [PATCH net v2 0/2] net: ipa: enable register retention Alex Elder
2022-02-01 15:02 ` Alex Elder [this message]
2022-02-01 15:02 ` [PATCH net v2 2/2] net: ipa: request IPA register values be retained Alex Elder
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