| Message ID | 20221025083609.2129260-2-joy.zou@nxp.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | dmaengine: sdma support hdmi audio | expand |
On 25/10/2022 04:36, Joy Zou wrote: > Convert the i.MX SDMA binding to DT schema format using json-schema. > > The compatibles fsl,imx31-to1-sdma, fsl,imx31-to2-sdma, fsl,imx35-to1-sdma > and fsl,imx35-to2-sdma are not used. So need to delete it. The compatibles > fsl,imx50-sdma, fsl,imx6sll-sdma and fsl,imx6sl-sdma are added. The > original binding don't list all compatible used. > > In addition, add new peripheral types HDMI Audio. > > Signed-off-by: Joy Zou <joy.zou@nxp.com> > --- > Changes in v8: > add the dma-controller quotes. Why adding quotes? > delete #dma-cells in required. > > Changes in v6: > delete tag Acked-by from commit message. > > Changes in v5: > modify the commit message fromat. > add additionalProperties, because delete the quotes in patch v4. > delete unevaluatedProperties due to similar to additionalProperties. > modification fsl,sdma-event-remap items and description. > > Changes in v4: > modify the commit message. > delete the quotes in patch. > modify the compatible in patch. > delete maxitems and add items for clock-names property. > add iram property. > > Changes in v3: > modify the commit message. > modify the filename. > modify the maintainer. > delete the unnecessary comment. > modify the compatible and run dt_binding_check and dtbs_check. > add clocks and clock-names property. > delete the reg description and add maxItems. > delete the interrupts description and add maxItems. > add ref for gpr property. > modify the fsl,sdma-event-remap ref type and add items. > delete consumer example. > > Changes in v2: > convert imx sdma bindings to DT schema. > --- > .../devicetree/bindings/dma/fsl,imx-sdma.yaml | 149 ++++++++++++++++++ > .../devicetree/bindings/dma/fsl-imx-sdma.txt | 118 -------------- > 2 files changed, 149 insertions(+), 118 deletions(-) > create mode 100644 Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml > delete mode 100644 Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt > > diff --git a/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml > new file mode 100644 > index 000000000000..fe527d32cdb6 > --- /dev/null > +++ b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml > @@ -0,0 +1,149 @@ > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/dma/fsl,imx-sdma.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Freescale Smart Direct Memory Access (SDMA) Controller for i.MX > + > +maintainers: > + - Joy Zou <joy.zou@nxp.com> > + > +allOf: > + - $ref: "dma-controller.yaml#" Drop quotes. > + > +properties: > + compatible: Best regards, Krzysztof
> -----Original Message----- > From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > Sent: 2022年10月26日 22:59 > To: Joy Zou <joy.zou@nxp.com>; vkoul@kernel.org; robh+dt@kernel.org; > krzysztof.kozlowski+dt@linaro.org; shawnguo@kernel.org; > s.hauer@pengutronix.de; kernel@pengutronix.de; festevam@gmail.com > Cc: S.J. Wang <shengjiu.wang@nxp.com>; martink@posteo.de; > dev@lynxeye.de; alexander.stein@ew.tq-group.com; Peng Fan > <peng.fan@nxp.com>; david@ixit.cz; aford173@gmail.com; Hongxing Zhu > <hongxing.zhu@nxp.com>; dl-linux-imx <linux-imx@nxp.com>; > dmaengine@vger.kernel.org; devicetree@vger.kernel.org; > linux-arm-kernel@lists.infradead.org; linux-kernel@vger.kernel.org > Subject: [EXT] Re: [PATCH v8 1/2] dt-bindings: fsl-imx-sdma: Convert imx sdma > to DT schema > > Caution: EXT Email > > On 25/10/2022 04:36, Joy Zou wrote: > > Convert the i.MX SDMA binding to DT schema format using json-schema. > > > > The compatibles fsl,imx31-to1-sdma, fsl,imx31-to2-sdma, > > fsl,imx35-to1-sdma and fsl,imx35-to2-sdma are not used. So need to > > delete it. The compatibles fsl,imx50-sdma, fsl,imx6sll-sdma and > > fsl,imx6sl-sdma are added. The original binding don't list all compatible used. > > > > In addition, add new peripheral types HDMI Audio. > > > > Signed-off-by: Joy Zou <joy.zou@nxp.com> > > --- > > Changes in v8: > > add the dma-controller quotes. > > Why adding quotes? I refer to your comments in patch v7/1. The comment as follow: +maintainers: + - Joy Zou <joy.zou@nxp.com> + You need to reference dma-controller.yaml schema. +properties: + compatible: + one of: I misunderstand that add the dma-controller.yaml quotes. So I am a little confused. Now, I see. should I add dma-common.yaml quotes but not the dma-controller? Thank you very much your comments. BR Joy Zou > > > delete #dma-cells in required. > > > > Changes in v6: > > delete tag Acked-by from commit message. > > > > Changes in v5: > > modify the commit message fromat. > > add additionalProperties, because delete the quotes in patch v4. > > delete unevaluatedProperties due to similar to additionalProperties. > > modification fsl,sdma-event-remap items and description. > > > > Changes in v4: > > modify the commit message. > > delete the quotes in patch. > > modify the compatible in patch. > > delete maxitems and add items for clock-names property. > > add iram property. > > > > Changes in v3: > > modify the commit message. > > modify the filename. > > modify the maintainer. > > delete the unnecessary comment. > > modify the compatible and run dt_binding_check and dtbs_check. > > add clocks and clock-names property. > > delete the reg description and add maxItems. > > delete the interrupts description and add maxItems. > > add ref for gpr property. > > modify the fsl,sdma-event-remap ref type and add items. > > delete consumer example. > > > > Changes in v2: > > convert imx sdma bindings to DT schema. > > --- > > .../devicetree/bindings/dma/fsl,imx-sdma.yaml | 149 > > ++++++++++++++++++ .../devicetree/bindings/dma/fsl-imx-sdma.txt | > > 118 -------------- > > 2 files changed, 149 insertions(+), 118 deletions(-) create mode > > 100644 Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml > > delete mode 100644 > > Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt > > > > diff --git a/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml > > b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml > > new file mode 100644 > > index 000000000000..fe527d32cdb6 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml > > @@ -0,0 +1,149 @@ > > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause %YAML 1.2 > > +--- > > +$id: > > +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi > > > +cetree.org%2Fschemas%2Fdma%2Ffsl%2Cimx-sdma.yaml%23&data=05 > %7C01% > > > +7Cjoy.zou%40nxp.com%7C65861efd9f1b45e1e28708dab7629f07%7C686ea1 > d3bc2b > > > +4c6fa92cd99c5c301635%7C0%7C0%7C638023931445930183%7CUnknown > %7CTWFpbGZ > > > +sb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6M > n0% > > > +3D%7C3000%7C%7C%7C&sdata=vkIwpv%2Fb%2FA7nWGGTEyZ7ma%2B > AlqL5o%2FzE > > +IJDv23SN3Po%3D&reserved=0 > > +$schema: > > +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi > > > +cetree.org%2Fmeta-schemas%2Fcore.yaml%23&data=05%7C01%7Cjoy.z > ou%4 > > > +0nxp.com%7C65861efd9f1b45e1e28708dab7629f07%7C686ea1d3bc2b4c6f > a92cd99 > > > +c5c301635%7C0%7C0%7C638023931445930183%7CUnknown%7CTWFpbG > Zsb3d8eyJWIj > > > +oiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3 > 000%7 > > > +C%7C%7C&sdata=ZWaugqmVmQBvT%2B50ESN1LsLPJCRhPl40RPajGkX1 > mJY%3D&am > > +p;reserved=0 > > + > > +title: Freescale Smart Direct Memory Access (SDMA) Controller for > > +i.MX > > + > > +maintainers: > > + - Joy Zou <joy.zou@nxp.com> > > + > > +allOf: > > + - $ref: "dma-controller.yaml#" > > Drop quotes. > > > + > > +properties: > > + compatible: > > Best regards, > Krzysztof
On 26/10/2022 23:01, Joy Zou wrote: > >> -----Original Message----- >> From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> >> Sent: 2022年10月26日 22:59 >> To: Joy Zou <joy.zou@nxp.com>; vkoul@kernel.org; robh+dt@kernel.org; >> krzysztof.kozlowski+dt@linaro.org; shawnguo@kernel.org; >> s.hauer@pengutronix.de; kernel@pengutronix.de; festevam@gmail.com >> Cc: S.J. Wang <shengjiu.wang@nxp.com>; martink@posteo.de; >> dev@lynxeye.de; alexander.stein@ew.tq-group.com; Peng Fan >> <peng.fan@nxp.com>; david@ixit.cz; aford173@gmail.com; Hongxing Zhu >> <hongxing.zhu@nxp.com>; dl-linux-imx <linux-imx@nxp.com>; >> dmaengine@vger.kernel.org; devicetree@vger.kernel.org; >> linux-arm-kernel@lists.infradead.org; linux-kernel@vger.kernel.org >> Subject: [EXT] Re: [PATCH v8 1/2] dt-bindings: fsl-imx-sdma: Convert imx sdma >> to DT schema >> >> Caution: EXT Email >> >> On 25/10/2022 04:36, Joy Zou wrote: >>> Convert the i.MX SDMA binding to DT schema format using json-schema. >>> >>> The compatibles fsl,imx31-to1-sdma, fsl,imx31-to2-sdma, >>> fsl,imx35-to1-sdma and fsl,imx35-to2-sdma are not used. So need to >>> delete it. The compatibles fsl,imx50-sdma, fsl,imx6sll-sdma and >>> fsl,imx6sl-sdma are added. The original binding don't list all compatible used. >>> >>> In addition, add new peripheral types HDMI Audio. >>> >>> Signed-off-by: Joy Zou <joy.zou@nxp.com> >>> --- >>> Changes in v8: >>> add the dma-controller quotes. >> >> Why adding quotes? > I refer to your comments in patch v7/1. The comment as follow: > +maintainers: > + - Joy Zou <joy.zou@nxp.com> > + > You need to reference dma-controller.yaml schema. Yes, you need to reference dma-controller.yaml. Nothing about quotes. Reference is "$ref: .....yaml" > +properties: > + compatible: > + one of: > I misunderstand that add the dma-controller.yaml quotes. There was nothing about quotes - ". > So I am a little confused. Now, I see. > should I add dma-common.yaml quotes but not the dma-controller? Just drop " https://en.wikipedia.org/wiki/Quotation_mark Best regards, Krzysztof
> -----Original Message----- > From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > Sent: 2022年10月28日 10:01 > To: Joy Zou <joy.zou@nxp.com>; vkoul@kernel.org; robh+dt@kernel.org; > krzysztof.kozlowski+dt@linaro.org; shawnguo@kernel.org; > s.hauer@pengutronix.de; kernel@pengutronix.de; festevam@gmail.com > Cc: S.J. Wang <shengjiu.wang@nxp.com>; martink@posteo.de; > dev@lynxeye.de; alexander.stein@ew.tq-group.com; Peng Fan > <peng.fan@nxp.com>; david@ixit.cz; aford173@gmail.com; Hongxing Zhu > <hongxing.zhu@nxp.com>; dl-linux-imx <linux-imx@nxp.com>; > dmaengine@vger.kernel.org; devicetree@vger.kernel.org; > linux-arm-kernel@lists.infradead.org; linux-kernel@vger.kernel.org > Subject: Re: [EXT] Re: [PATCH v8 1/2] dt-bindings: fsl-imx-sdma: Convert imx > sdma to DT schema > > Caution: EXT Email > > On 26/10/2022 23:01, Joy Zou wrote: > > > >> -----Original Message----- > >> From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> > >> Sent: 2022年10月26日 22:59 > >> To: Joy Zou <joy.zou@nxp.com>; vkoul@kernel.org; robh+dt@kernel.org; > >> krzysztof.kozlowski+dt@linaro.org; shawnguo@kernel.org; > >> s.hauer@pengutronix.de; kernel@pengutronix.de; festevam@gmail.com > >> Cc: S.J. Wang <shengjiu.wang@nxp.com>; martink@posteo.de; > >> dev@lynxeye.de; alexander.stein@ew.tq-group.com; Peng Fan > >> <peng.fan@nxp.com>; david@ixit.cz; aford173@gmail.com; Hongxing Zhu > >> <hongxing.zhu@nxp.com>; dl-linux-imx <linux-imx@nxp.com>; > >> dmaengine@vger.kernel.org; devicetree@vger.kernel.org; > >> linux-arm-kernel@lists.infradead.org; linux-kernel@vger.kernel.org > >> Subject: [EXT] Re: [PATCH v8 1/2] dt-bindings: fsl-imx-sdma: Convert > >> imx sdma to DT schema > >> > >> Caution: EXT Email > >> > >> On 25/10/2022 04:36, Joy Zou wrote: > >>> Convert the i.MX SDMA binding to DT schema format using json-schema. > >>> > >>> The compatibles fsl,imx31-to1-sdma, fsl,imx31-to2-sdma, > >>> fsl,imx35-to1-sdma and fsl,imx35-to2-sdma are not used. So need to > >>> delete it. The compatibles fsl,imx50-sdma, fsl,imx6sll-sdma and > >>> fsl,imx6sl-sdma are added. The original binding don't list all compatible > used. > >>> > >>> In addition, add new peripheral types HDMI Audio. > >>> > >>> Signed-off-by: Joy Zou <joy.zou@nxp.com> > >>> --- > >>> Changes in v8: > >>> add the dma-controller quotes. > >> > >> Why adding quotes? > > I refer to your comments in patch v7/1. The comment as follow: > > +maintainers: > > + - Joy Zou <joy.zou@nxp.com> > > + > > You need to reference dma-controller.yaml schema. > > Yes, you need to reference dma-controller.yaml. Nothing about quotes. > Reference is "$ref: .....yaml" > > > > +properties: > > + compatible: > > + one of: > > I misunderstand that add the dma-controller.yaml quotes. > > There was nothing about quotes - ". > > > So I am a little confused. Now, I see. > > should I add dma-common.yaml quotes but not the dma-controller? > > Just drop " Thank you very much for your comments. I have changed in patch v9. BR Joy Zou > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fen.wiki > pedia.org%2Fwiki%2FQuotation_mark&data=05%7C01%7Cjoy.zou%40nx > p.com%7C01a8f1df618e4811dec208dab8884860%7C686ea1d3bc2b4c6fa92c > d99c5c301635%7C0%7C0%7C638025192713842798%7CUnknown%7CTWFp > bGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI > 6Mn0%3D%7C3000%7C%7C%7C&sdata=UTq378xCa%2Bi4uj0IKxO1lDHpf > YnKColWT33OVV0T3zE%3D&reserved=0 > > Best regards, > Krzysztof
diff --git a/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml new file mode 100644 index 000000000000..fe527d32cdb6 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml @@ -0,0 +1,149 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dma/fsl,imx-sdma.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale Smart Direct Memory Access (SDMA) Controller for i.MX + +maintainers: + - Joy Zou <joy.zou@nxp.com> + +allOf: + - $ref: "dma-controller.yaml#" + +properties: + compatible: + oneOf: + - items: + - enum: + - fsl,imx50-sdma + - fsl,imx51-sdma + - fsl,imx53-sdma + - fsl,imx6q-sdma + - fsl,imx7d-sdma + - const: fsl,imx35-sdma + - items: + - enum: + - fsl,imx6sx-sdma + - fsl,imx6sl-sdma + - const: fsl,imx6q-sdma + - items: + - const: fsl,imx6ul-sdma + - const: fsl,imx6q-sdma + - const: fsl,imx35-sdma + - items: + - const: fsl,imx6sll-sdma + - const: fsl,imx6ul-sdma + - items: + - const: fsl,imx8mq-sdma + - const: fsl,imx7d-sdma + - items: + - enum: + - fsl,imx8mp-sdma + - fsl,imx8mn-sdma + - fsl,imx8mm-sdma + - const: fsl,imx8mq-sdma + - items: + - enum: + - fsl,imx25-sdma + - fsl,imx31-sdma + - fsl,imx35-sdma + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + fsl,sdma-ram-script-name: + $ref: /schemas/types.yaml#/definitions/string + description: Should contain the full path of SDMA RAM scripts firmware. + + "#dma-cells": + const: 3 + description: | + The first cell: request/event ID + + The second cell: peripheral types ID + enum: + - MCU domain SSI: 0 + - Shared SSI: 1 + - MMC: 2 + - SDHC: 3 + - MCU domain UART: 4 + - Shared UART: 5 + - FIRI: 6 + - MCU domain CSPI: 7 + - Shared CSPI: 8 + - SIM: 9 + - ATA: 10 + - CCM: 11 + - External peripheral: 12 + - Memory Stick Host Controller: 13 + - Shared Memory Stick Host Controller: 14 + - DSP: 15 + - Memory: 16 + - FIFO type Memory: 17 + - SPDIF: 18 + - IPU Memory: 19 + - ASRC: 20 + - ESAI: 21 + - SSI Dual FIFO: 22 + description: needs firmware more than ver 2 + - Shared ASRC: 23 + - SAI: 24 + - HDMI Audio: 25 + + The third cell: transfer priority ID + enum: + - High: 0 + - Medium: 1 + - Low: 2 + + gpr: + $ref: /schemas/types.yaml#/definitions/phandle + description: The phandle to the General Purpose Register (GPR) node + + fsl,sdma-event-remap: + $ref: /schemas/types.yaml#/definitions/uint32-matrix + maxItems: 2 + items: + items: + - description: GPR register offset + - description: GPR register shift + - description: GPR register value + description: | + Register bits of sdma event remap, the format is <reg shift val>. + The order is <RX>, <TX>. + + clocks: + maxItems: 2 + + clock-names: + items: + - const: ipg + - const: ahb + + iram: + $ref: /schemas/types.yaml#/definitions/phandle + description: The phandle to the On-chip RAM (OCRAM) node. + +required: + - compatible + - reg + - interrupts + - fsl,sdma-ram-script-name + +additionalProperties: false + +examples: + - | + sdma: dma-controller@83fb0000 { + compatible = "fsl,imx51-sdma", "fsl,imx35-sdma"; + reg = <0x83fb0000 0x4000>; + interrupts = <6>; + #dma-cells = <3>; + fsl,sdma-ram-script-name = "sdma-imx51.bin"; + }; + +... diff --git a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt deleted file mode 100644 index 12c316ff4834..000000000000 --- a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt +++ /dev/null @@ -1,118 +0,0 @@ -* Freescale Smart Direct Memory Access (SDMA) Controller for i.MX - -Required properties: -- compatible : Should be one of - "fsl,imx25-sdma" - "fsl,imx31-sdma", "fsl,imx31-to1-sdma", "fsl,imx31-to2-sdma" - "fsl,imx35-sdma", "fsl,imx35-to1-sdma", "fsl,imx35-to2-sdma" - "fsl,imx51-sdma" - "fsl,imx53-sdma" - "fsl,imx6q-sdma" - "fsl,imx7d-sdma" - "fsl,imx6ul-sdma" - "fsl,imx8mq-sdma" - "fsl,imx8mm-sdma" - "fsl,imx8mn-sdma" - "fsl,imx8mp-sdma" - The -to variants should be preferred since they allow to determine the - correct ROM script addresses needed for the driver to work without additional - firmware. -- reg : Should contain SDMA registers location and length -- interrupts : Should contain SDMA interrupt -- #dma-cells : Must be <3>. - The first cell specifies the DMA request/event ID. See details below - about the second and third cell. -- fsl,sdma-ram-script-name : Should contain the full path of SDMA RAM - scripts firmware - -The second cell of dma phandle specifies the peripheral type of DMA transfer. -The full ID of peripheral types can be found below. - - ID transfer type - --------------------- - 0 MCU domain SSI - 1 Shared SSI - 2 MMC - 3 SDHC - 4 MCU domain UART - 5 Shared UART - 6 FIRI - 7 MCU domain CSPI - 8 Shared CSPI - 9 SIM - 10 ATA - 11 CCM - 12 External peripheral - 13 Memory Stick Host Controller - 14 Shared Memory Stick Host Controller - 15 DSP - 16 Memory - 17 FIFO type Memory - 18 SPDIF - 19 IPU Memory - 20 ASRC - 21 ESAI - 22 SSI Dual FIFO (needs firmware ver >= 2) - 23 Shared ASRC - 24 SAI - -The third cell specifies the transfer priority as below. - - ID transfer priority - ------------------------- - 0 High - 1 Medium - 2 Low - -Optional properties: - -- gpr : The phandle to the General Purpose Register (GPR) node. -- fsl,sdma-event-remap : Register bits of sdma event remap, the format is - <reg shift val>. - reg is the GPR register offset. - shift is the bit position inside the GPR register. - val is the value of the bit (0 or 1). - -Examples: - -sdma@83fb0000 { - compatible = "fsl,imx51-sdma", "fsl,imx35-sdma"; - reg = <0x83fb0000 0x4000>; - interrupts = <6>; - #dma-cells = <3>; - fsl,sdma-ram-script-name = "sdma-imx51.bin"; -}; - -DMA clients connected to the i.MX SDMA controller must use the format -described in the dma.txt file. - -Examples: - -ssi2: ssi@70014000 { - compatible = "fsl,imx51-ssi", "fsl,imx21-ssi"; - reg = <0x70014000 0x4000>; - interrupts = <30>; - clocks = <&clks 49>; - dmas = <&sdma 24 1 0>, - <&sdma 25 1 0>; - dma-names = "rx", "tx"; - fsl,fifo-depth = <15>; -}; - -Using the fsl,sdma-event-remap property: - -If we want to use SDMA on the SAI1 port on a MX6SX: - -&sdma { - gpr = <&gpr>; - /* SDMA events remap for SAI1_RX and SAI1_TX */ - fsl,sdma-event-remap = <0 15 1>, <0 16 1>; -}; - -The fsl,sdma-event-remap property in this case has two values: -- <0 15 1> means that the offset is 0, so GPR0 is the register of the -SDMA remap. Bit 15 of GPR0 selects between UART4_RX and SAI1_RX. -Setting bit 15 to 1 selects SAI1_RX. -- <0 16 1> means that the offset is 0, so GPR0 is the register of the -SDMA remap. Bit 16 of GPR0 selects between UART4_TX and SAI1_TX. -Setting bit 16 to 1 selects SAI1_TX.
Convert the i.MX SDMA binding to DT schema format using json-schema. The compatibles fsl,imx31-to1-sdma, fsl,imx31-to2-sdma, fsl,imx35-to1-sdma and fsl,imx35-to2-sdma are not used. So need to delete it. The compatibles fsl,imx50-sdma, fsl,imx6sll-sdma and fsl,imx6sl-sdma are added. The original binding don't list all compatible used. In addition, add new peripheral types HDMI Audio. Signed-off-by: Joy Zou <joy.zou@nxp.com> --- Changes in v8: add the dma-controller quotes. delete #dma-cells in required. Changes in v6: delete tag Acked-by from commit message. Changes in v5: modify the commit message fromat. add additionalProperties, because delete the quotes in patch v4. delete unevaluatedProperties due to similar to additionalProperties. modification fsl,sdma-event-remap items and description. Changes in v4: modify the commit message. delete the quotes in patch. modify the compatible in patch. delete maxitems and add items for clock-names property. add iram property. Changes in v3: modify the commit message. modify the filename. modify the maintainer. delete the unnecessary comment. modify the compatible and run dt_binding_check and dtbs_check. add clocks and clock-names property. delete the reg description and add maxItems. delete the interrupts description and add maxItems. add ref for gpr property. modify the fsl,sdma-event-remap ref type and add items. delete consumer example. Changes in v2: convert imx sdma bindings to DT schema. --- .../devicetree/bindings/dma/fsl,imx-sdma.yaml | 149 ++++++++++++++++++ .../devicetree/bindings/dma/fsl-imx-sdma.txt | 118 -------------- 2 files changed, 149 insertions(+), 118 deletions(-) create mode 100644 Documentation/devicetree/bindings/dma/fsl,imx-sdma.yaml delete mode 100644 Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt