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Message-Id: <20241021155221.112073-2-laurentiumihalcea111@gmail.com>
Date: Mon, 21 Oct 2024 11:52:16 -0400
From: Laurentiu Mihalcea <laurentiumihalcea111@...il.com>
To: Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Daniel Baluta <daniel.baluta@....com>,
Shengjiu Wang <shengjiu.wang@....com>,
Iuliana Prodan <iuliana.prodan@....com>,
Tushar Khandelwal <Tushar.Khandelwal@....com>,
Viresh Kumar <viresh.kumar@...aro.org>,
Frank Li <Frank.li@....com>
Cc: devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
imx@...ts.linux.dev,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v4 1/6] dt-bindings: dsp: fsl,dsp: fix power domain count
From: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
Per the current binding, QM/QXP DSPs are supposed to have 4
power domains, while the rest just 1. For QM/QXP, the 4 power
domains are: DSP, DSP_RAM, MU13A, MU13B.
First off, drop MU13A from the count as its already attached
to lsio_mu13. This decreases the count to 3.
Secondly, drop DSP and DSP_RAM from the count for QXP. These
are already attached to the DSP's LPCGs.
Thirdly, a new power domain is required for DSP-SCU communication
(MU2A). With this in mind, the number of required power domains
for QXP is 2 (MU2A, MU13B), while for QM it's 4 (MU13B, DSP,
DSP_RAM, MU2A).
Update the fsl,dsp binding to reflect all of this information.
Since the arm,mhuv2 binding has an example node using the
fsl,imx8qxp-dsp compatible, remove two of the extra PDs to
align with the required power domain count.
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
.../devicetree/bindings/dsp/fsl,dsp.yaml | 31 +++++++++++++++----
.../bindings/mailbox/arm,mhuv2.yaml | 2 +-
2 files changed, 26 insertions(+), 7 deletions(-)
diff --git a/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml b/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml
index 9af40da5688e..ab93ffd3d2e5 100644
--- a/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml
+++ b/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml
@@ -99,14 +99,35 @@ allOf:
contains:
enum:
- fsl,imx8qxp-dsp
- - fsl,imx8qm-dsp
- fsl,imx8qxp-hifi4
+ then:
+ properties:
+ power-domains:
+ minItems: 2
+ maxItems: 2
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx8qm-dsp
- fsl,imx8qm-hifi4
then:
properties:
power-domains:
minItems: 4
- else:
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx8mp-dsp
+ - fsl,imx8mp-hifi4
+ - fsl,imx8ulp-dsp
+ - fsl,imx8ulp-hifi4
+ then:
properties:
power-domains:
maxItems: 1
@@ -157,10 +178,8 @@ examples:
<&adma_lpcg IMX_ADMA_LPCG_OCRAM_IPG_CLK>,
<&adma_lpcg IMX_ADMA_LPCG_DSP_CORE_CLK>;
clock-names = "ipg", "ocram", "core";
- power-domains = <&pd IMX_SC_R_MU_13A>,
- <&pd IMX_SC_R_MU_13B>,
- <&pd IMX_SC_R_DSP>,
- <&pd IMX_SC_R_DSP_RAM>;
+ power-domains = <&pd IMX_SC_R_MU_13B>,
+ <&pd IMX_SC_R_MU_2A>;
mbox-names = "txdb0", "txdb1", "rxdb0", "rxdb1";
mboxes = <&lsio_mu13 2 0>, <&lsio_mu13 2 1>, <&lsio_mu13 3 0>, <&lsio_mu13 3 1>;
memory-region = <&dsp_reserved>;
diff --git a/Documentation/devicetree/bindings/mailbox/arm,mhuv2.yaml b/Documentation/devicetree/bindings/mailbox/arm,mhuv2.yaml
index a4f1fe63659a..02f06314d85f 100644
--- a/Documentation/devicetree/bindings/mailbox/arm,mhuv2.yaml
+++ b/Documentation/devicetree/bindings/mailbox/arm,mhuv2.yaml
@@ -197,7 +197,7 @@ examples:
reg = <0 0x596e8000 0 0x88000>;
clocks = <&adma_lpcg 0>, <&adma_lpcg 1>, <&adma_lpcg 2>;
clock-names = "ipg", "ocram", "core";
- power-domains = <&pd 0>, <&pd 1>, <&pd 2>, <&pd 3>;
+ power-domains = <&pd 0>, <&pd 1>;
mbox-names = "txdb0", "txdb1", "rxdb0", "rxdb1";
mboxes = <&mhu_tx 2 0>, //data-transfer protocol with 5 windows, mhu-tx
<&mhu_tx 3 0>, //data-transfer protocol with 7 windows, mhu-tx
--
2.34.1
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