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Message-Id: <20240409185416.2224609-2-Frank.Li@nxp.com>
Date: Tue, 9 Apr 2024 14:54:16 -0400
From: Frank Li <Frank.Li@....com>
To: krzysztof.kozlowski@...aro.org
Cc: Frank.li@....com,
conor+dt@...nel.org,
devicetree@...r.kernel.org,
dmaengine@...r.kernel.org,
imx@...ts.linux.dev,
krzysztof.kozlowski+dt@...aro.org,
linux-kernel@...r.kernel.org,
peng.fan@....com,
robh@...nel.org,
vkoul@...nel.org
Subject: [PATCH v3 2/2] dt-bindings: dma: fsl-edma: allow 'power-domains' property
Allow 'power-domains' property because i.MX8DXL i.MX8QM and i.MX8QXP need
it. EDMA supports each power-domain for each dma channel. So minItems and
maxItems align 'dma-channels'.
Change fsl,imx93-edma3 example to fsl,imx8qm-edma to affect this variants.
Fixed below DTB_CHECK warning:
dma-controller@...f0000: Unevaluated properties are not allowed ('power-domains' was unexpected)
Signed-off-by: Frank Li <Frank.Li@....com>
---
Notes:
Change from v2 to v3
- set 'power-domains' false for other compatitble string
- change imx93 example to 8qm example to affect this change according to
Krzysztof Kozlowski's suggestion, choose least channel number edma
instance to reduce code copy. max channel number is 64.
- Rebase to latest dmaengine/next
Change from v1 to v2
- using maxitem: 64. Each channel have one power domain. Max 64 dmachannel.
- add power-domains to 'required' when compatible string is fsl,imx8qm-adma
or fsl,imx8qm-edma
.../devicetree/bindings/dma/fsl,edma.yaml | 79 ++++++++++---------
1 file changed, 40 insertions(+), 39 deletions(-)
diff --git a/Documentation/devicetree/bindings/dma/fsl,edma.yaml b/Documentation/devicetree/bindings/dma/fsl,edma.yaml
index 657a7d3ebf857..012522612dc96 100644
--- a/Documentation/devicetree/bindings/dma/fsl,edma.yaml
+++ b/Documentation/devicetree/bindings/dma/fsl,edma.yaml
@@ -71,6 +71,10 @@ properties:
minItems: 1
maxItems: 33
+ power-domains:
+ minItems: 1
+ maxItems: 64
+
big-endian:
description: |
If present registers and hardware scatter/gather descriptors of the
@@ -189,7 +193,7 @@ allOf:
- if:
properties:
compatible:
- contains:
+ contains:
enum:
- fsl,vf610-edma
- fsl,imx7ulp-edma
@@ -202,6 +206,20 @@ allOf:
required:
- clocks
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - fsl,imx8qm-adma
+ - fsl,imx8qm-edma
+ then:
+ required:
+ - power-domains
+ else:
+ properties:
+ power-domains: false
+
unevaluatedProperties: false
examples:
@@ -257,44 +275,27 @@ examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
- #include <dt-bindings/clock/imx93-clock.h>
+ #include <dt-bindings/firmware/imx/rsrc.h>
- dma-controller@...00000 {
- compatible = "fsl,imx93-edma3";
- reg = <0x44000000 0x200000>;
+ dma-controller@...f0000 {
+ compatible = "fsl,imx8qm-edma";
+ reg = <0x5a9f0000 0x90000>;
#dma-cells = <3>;
- dma-channels = <31>;
- interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
- <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clk IMX93_CLK_EDMA1_GATE>;
- clock-names = "dma";
+ dma-channels = <8>;
+ interrupts = <GIC_SPI 424 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 427 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 428 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 429 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 430 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 431 IRQ_TYPE_LEVEL_HIGH>;
+ power-domains = <&pd IMX_SC_R_DMA_3_CH0>,
+ <&pd IMX_SC_R_DMA_3_CH1>,
+ <&pd IMX_SC_R_DMA_3_CH2>,
+ <&pd IMX_SC_R_DMA_3_CH3>,
+ <&pd IMX_SC_R_DMA_3_CH4>,
+ <&pd IMX_SC_R_DMA_3_CH5>,
+ <&pd IMX_SC_R_DMA_3_CH6>,
+ <&pd IMX_SC_R_DMA_3_CH7>;
};
--
2.34.1
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