| Message ID | 20180514120307.15592-3-wen.he_1@nxp.com |
|---|---|
| State | Changes Requested, archived |
| Headers | show |
| Series | None | expand |
On Mon, May 14, 2018 at 08:03:04PM +0800, Wen He wrote: > Document the devicetree bindings for NXP Layerscape qDMA controller > which could be found on NXP QorIQ Layerscape SoCs. > > Signed-off-by: Wen He <wen.he_1@nxp.com> > --- > change in v4: > - Rewrite the bindings document that follows generic DMA bindings file > > change in v3: > - no change > > change in v2: > - Remove indentation > - Add "Should be" before 'fsl,ls1021a-qdma' > - Replace 'channels' by 'dma-channels' > - Replace 'qdma@8390000' by 'dma-controller@8390000' > > Documentation/devicetree/bindings/dma/fsl-qdma.txt | 41 ++++++++++++++++++++ > 1 files changed, 41 insertions(+), 0 deletions(-) > create mode 100644 Documentation/devicetree/bindings/dma/fsl-qdma.txt > > diff --git a/Documentation/devicetree/bindings/dma/fsl-qdma.txt b/Documentation/devicetree/bindings/dma/fsl-qdma.txt > new file mode 100644 > index 0000000..368c4e7 > --- /dev/null > +++ b/Documentation/devicetree/bindings/dma/fsl-qdma.txt > @@ -0,0 +1,41 @@ > +NXP Layerscape SoC qDMA Controller > +================================== > + > +This device follows the generic DMA bindings defined in dma/dma.txt. > + > +Required properties: > + > +- compatible: Must be one of > + "fsl,ls1021a-qdma": for LS1021A Board > + "fsl,ls1043a-qdma": for ls1043A Board > + "fsl,ls1046a-qdma": for ls1046A Board > +- reg: Should contain the register's base address and length. > +- interrupts: Should contain a reference to the interrupt used by this > + device. > +- interrupt-names: Should contain interrupt names: > + "qdma-error": the error interrupt > + "qdma-queue": the queue interrupt > +- queues: Should contain number of queues supported. Needs a vendor prefix. > + > +Optional properties: > + > +- dma-channels: Number of DMA channels supported by the controller. > +- big-endian: If present registers and hardware scatter/gather descriptors > + of the qDMA are implemented in big endian mode, otherwise in little > + mode. > + > +Examples: > + > + qdma: dma-controller@8390000 { > + compatible = "fsl,ls1021a-qdma"; > + reg = <0x0 0x8398000 0x0 0x2000 /* Controller registers */ > + 0x0 0x839a000 0x0 0x2000>; /* Block registers */ > + interrupts = <GIC_SPI 185 IRQ_TYPE_LEVEL_HIGH>, > + <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>; > + interrupt-names = "qdma-error", "qdma-queue"; > + dma-channels = <8>; > + queues = <2>; > + big-endian; > + }; > + > +DMA clients must use the format described in dma/dma.txt file. > -- > 1.7.1 > > -- > To unsubscribe from this list: send the line "unsubscribe devicetree" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi Rob, Please see my comments inline. Best Regards, Wen > -----Original Message----- > From: Rob Herring [mailto:robh@kernel.org] > Sent: 2018年5月19日 5:26 > To: Wen He <wen.he_1@nxp.com> > Cc: vinod.koul@intel.com; dmaengine@vger.kernel.org; > devicetree@vger.kernel.org; Leo Li <leoyang.li@nxp.com>; Jiafei Pan > <jiafei.pan@nxp.com>; Jiaheng Fan <jiaheng.fan@nxp.com> > Subject: Re: [v4 3/6] dt-bindings: fsl-qdma: Add NXP Layerscpae qDMA > controller bindings > > On Mon, May 14, 2018 at 08:03:04PM +0800, Wen He wrote: > > Document the devicetree bindings for NXP Layerscape qDMA controller > > which could be found on NXP QorIQ Layerscape SoCs. > > > > Signed-off-by: Wen He <wen.he_1@nxp.com> > > --- > > change in v4: > > - Rewrite the bindings document that follows generic DMA bindings > > file > > > > change in v3: > > - no change > > > > change in v2: > > - Remove indentation > > - Add "Should be" before 'fsl,ls1021a-qdma' > > - Replace 'channels' by 'dma-channels' > > - Replace 'qdma@8390000' by 'dma-controller@8390000' > > > > Documentation/devicetree/bindings/dma/fsl-qdma.txt | 41 > ++++++++++++++++++++ > > 1 files changed, 41 insertions(+), 0 deletions(-) create mode 100644 > > Documentation/devicetree/bindings/dma/fsl-qdma.txt > > > > diff --git a/Documentation/devicetree/bindings/dma/fsl-qdma.txt > > b/Documentation/devicetree/bindings/dma/fsl-qdma.txt > > new file mode 100644 > > index 0000000..368c4e7 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/dma/fsl-qdma.txt > > @@ -0,0 +1,41 @@ > > +NXP Layerscape SoC qDMA Controller > > +================================== > > + > > +This device follows the generic DMA bindings defined in dma/dma.txt. > > + > > +Required properties: > > + > > +- compatible: Must be one of > > + "fsl,ls1021a-qdma": for LS1021A Board > > + "fsl,ls1043a-qdma": for ls1043A Board > > + "fsl,ls1046a-qdma": for ls1046A Board > > +- reg: Should contain the register's base address and length. > > +- interrupts: Should contain a reference to the interrupt used by > this > > + device. > > +- interrupt-names: Should contain interrupt names: > > + "qdma-error": the error interrupt > > + "qdma-queue": the queue interrupt > > +- queues: Should contain number of queues supported. > > Needs a vendor prefix. > Does means: The queues filed need a vendor prefix ? like 'fsl-queues' ? right? > > + > > +Optional properties: > > + > > +- dma-channels: Number of DMA channels supported by the > controller. > > +- big-endian: If present registers and hardware scatter/gather > descriptors > > + of the qDMA are implemented in big endian mode, otherwise in > little > > + mode. > > + > > +Examples: > > + > > + qdma: dma-controller@8390000 { > > + compatible = "fsl,ls1021a-qdma"; > > + reg = <0x0 0x8398000 0x0 0x2000 /* Controller registers */ > > + 0x0 0x839a000 0x0 0x2000>; /* Block registers */ > > + interrupts = <GIC_SPI 185 IRQ_TYPE_LEVEL_HIGH>, > > + <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>; > > + interrupt-names = "qdma-error", "qdma-queue"; > > + dma-channels = <8>; > > + queues = <2>; > > + big-endian; > > + }; > > + > > +DMA clients must use the format described in dma/dma.txt file. > > -- > > 1.7.1 > > > > -- > > To unsubscribe from this list: send the line "unsubscribe devicetree" > > in the body of a message to majordomo@vger.kernel.org More majordomo > > info at > > > https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fvger > > .kernel.org%2Fmajordomo-info.html&data=02%7C01%7Cwen.he_1%40nxp > .com%7C > > > afe9f30f68654b36085408d5bd05f856%7C686ea1d3bc2b4c6fa92cd99c5c301 > 635%7C > > > 0%7C1%7C636622755700659994&sdata=W65hD8ZYUQm2%2F8TdfiUGorgB > Om8GojXdES2 > > mVNzQpIE%3D&reserved=0
Updated Vinod's email... On Mon, May 21, 2018 at 12:52 AM, Wen He <wen.he_1@nxp.com> wrote: > Hi Rob, > > Please see my comments inline. > > Best Regards, > Wen > >> -----Original Message----- >> From: Rob Herring [mailto:robh@kernel.org] >> Sent: 2018年5月19日 5:26 >> To: Wen He <wen.he_1@nxp.com> >> Cc: vinod.koul@intel.com; dmaengine@vger.kernel.org; >> devicetree@vger.kernel.org; Leo Li <leoyang.li@nxp.com>; Jiafei Pan >> <jiafei.pan@nxp.com>; Jiaheng Fan <jiaheng.fan@nxp.com> >> Subject: Re: [v4 3/6] dt-bindings: fsl-qdma: Add NXP Layerscpae qDMA >> controller bindings >> >> On Mon, May 14, 2018 at 08:03:04PM +0800, Wen He wrote: >> > Document the devicetree bindings for NXP Layerscape qDMA controller >> > which could be found on NXP QorIQ Layerscape SoCs. >> > >> > Signed-off-by: Wen He <wen.he_1@nxp.com> >> > --- >> > change in v4: >> > - Rewrite the bindings document that follows generic DMA bindings >> > file >> > >> > change in v3: >> > - no change >> > >> > change in v2: >> > - Remove indentation >> > - Add "Should be" before 'fsl,ls1021a-qdma' >> > - Replace 'channels' by 'dma-channels' >> > - Replace 'qdma@8390000' by 'dma-controller@8390000' >> > >> > Documentation/devicetree/bindings/dma/fsl-qdma.txt | 41 >> ++++++++++++++++++++ >> > 1 files changed, 41 insertions(+), 0 deletions(-) create mode 100644 >> > Documentation/devicetree/bindings/dma/fsl-qdma.txt >> > >> > diff --git a/Documentation/devicetree/bindings/dma/fsl-qdma.txt >> > b/Documentation/devicetree/bindings/dma/fsl-qdma.txt >> > new file mode 100644 >> > index 0000000..368c4e7 >> > --- /dev/null >> > +++ b/Documentation/devicetree/bindings/dma/fsl-qdma.txt >> > @@ -0,0 +1,41 @@ >> > +NXP Layerscape SoC qDMA Controller >> > +================================== >> > + >> > +This device follows the generic DMA bindings defined in dma/dma.txt. >> > + >> > +Required properties: >> > + >> > +- compatible: Must be one of >> > + "fsl,ls1021a-qdma": for LS1021A Board >> > + "fsl,ls1043a-qdma": for ls1043A Board >> > + "fsl,ls1046a-qdma": for ls1046A Board >> > +- reg: Should contain the register's base address and length. >> > +- interrupts: Should contain a reference to the interrupt used by >> this >> > + device. >> > +- interrupt-names: Should contain interrupt names: >> > + "qdma-error": the error interrupt >> > + "qdma-queue": the queue interrupt >> > +- queues: Should contain number of queues supported. >> >> Needs a vendor prefix. >> > > Does means: The queues filed need a vendor prefix ? > like 'fsl-queues' ? right? No, vendor prefixes end with a comma: fsl,queues Rob -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
> -----Original Message----- > From: Rob Herring [mailto:robh@kernel.org] > Sent: 2018年5月24日 3:59 > To: Wen He <wen.he_1@nxp.com> > Cc: dmaengine@vger.kernel.org; devicetree@vger.kernel.org; Leo Li > <leoyang.li@nxp.com>; Jiafei Pan <jiafei.pan@nxp.com>; Jiaheng Fan > <jiaheng.fan@nxp.com>; Vinod <vkoul@kernel.org> > Subject: Re: [v4 3/6] dt-bindings: fsl-qdma: Add NXP Layerscpae qDMA > controller bindings > > Updated Vinod's email... > > On Mon, May 21, 2018 at 12:52 AM, Wen He <wen.he_1@nxp.com> wrote: > > Hi Rob, > > > > Please see my comments inline. > > > > Best Regards, > > Wen > > > >> -----Original Message----- > >> From: Rob Herring [mailto:robh@kernel.org] > >> Sent: 2018年5月19日 5:26 > >> To: Wen He <wen.he_1@nxp.com> > >> Cc: vinod.koul@intel.com; dmaengine@vger.kernel.org; > >> devicetree@vger.kernel.org; Leo Li <leoyang.li@nxp.com>; Jiafei Pan > >> <jiafei.pan@nxp.com>; Jiaheng Fan <jiaheng.fan@nxp.com> > >> Subject: Re: [v4 3/6] dt-bindings: fsl-qdma: Add NXP Layerscpae qDMA > >> controller bindings > >> > >> On Mon, May 14, 2018 at 08:03:04PM +0800, Wen He wrote: > >> > Document the devicetree bindings for NXP Layerscape qDMA controller > >> > which could be found on NXP QorIQ Layerscape SoCs. > >> > > >> > Signed-off-by: Wen He <wen.he_1@nxp.com> > >> > --- > >> > change in v4: > >> > - Rewrite the bindings document that follows generic DMA > >> > bindings file > >> > > >> > change in v3: > >> > - no change > >> > > >> > change in v2: > >> > - Remove indentation > >> > - Add "Should be" before 'fsl,ls1021a-qdma' > >> > - Replace 'channels' by 'dma-channels' > >> > - Replace 'qdma@8390000' by 'dma-controller@8390000' > >> > > >> > Documentation/devicetree/bindings/dma/fsl-qdma.txt | 41 > >> ++++++++++++++++++++ > >> > 1 files changed, 41 insertions(+), 0 deletions(-) create mode > >> > 100644 Documentation/devicetree/bindings/dma/fsl-qdma.txt > >> > > >> > diff --git a/Documentation/devicetree/bindings/dma/fsl-qdma.txt > >> > b/Documentation/devicetree/bindings/dma/fsl-qdma.txt > >> > new file mode 100644 > >> > index 0000000..368c4e7 > >> > --- /dev/null > >> > +++ b/Documentation/devicetree/bindings/dma/fsl-qdma.txt > >> > @@ -0,0 +1,41 @@ > >> > +NXP Layerscape SoC qDMA Controller > >> > +================================== > >> > + > >> > +This device follows the generic DMA bindings defined in dma/dma.txt. > >> > + > >> > +Required properties: > >> > + > >> > +- compatible: Must be one of > >> > + "fsl,ls1021a-qdma": for LS1021A Board > >> > + "fsl,ls1043a-qdma": for ls1043A Board > >> > + "fsl,ls1046a-qdma": for ls1046A Board > >> > +- reg: Should contain the register's base > address and length. > >> > +- interrupts: Should contain a reference to the > interrupt used by > >> this > >> > + device. > >> > +- interrupt-names: Should contain interrupt names: > >> > + "qdma-error": the error interrupt > >> > + "qdma-queue": the queue interrupt > >> > +- queues: Should contain number of queues supported. > >> > >> Needs a vendor prefix. > >> > > > > Does means: The queues filed need a vendor prefix ? > > like 'fsl-queues' ? right? > > No, vendor prefixes end with a comma: fsl,queues > > Rob Done. Thanks for your review, the issue will next version fix. Best Regards, Wen
diff --git a/Documentation/devicetree/bindings/dma/fsl-qdma.txt b/Documentation/devicetree/bindings/dma/fsl-qdma.txt new file mode 100644 index 0000000..368c4e7 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/fsl-qdma.txt @@ -0,0 +1,41 @@ +NXP Layerscape SoC qDMA Controller +================================== + +This device follows the generic DMA bindings defined in dma/dma.txt. + +Required properties: + +- compatible: Must be one of + "fsl,ls1021a-qdma": for LS1021A Board + "fsl,ls1043a-qdma": for ls1043A Board + "fsl,ls1046a-qdma": for ls1046A Board +- reg: Should contain the register's base address and length. +- interrupts: Should contain a reference to the interrupt used by this + device. +- interrupt-names: Should contain interrupt names: + "qdma-error": the error interrupt + "qdma-queue": the queue interrupt +- queues: Should contain number of queues supported. + +Optional properties: + +- dma-channels: Number of DMA channels supported by the controller. +- big-endian: If present registers and hardware scatter/gather descriptors + of the qDMA are implemented in big endian mode, otherwise in little + mode. + +Examples: + + qdma: dma-controller@8390000 { + compatible = "fsl,ls1021a-qdma"; + reg = <0x0 0x8398000 0x0 0x2000 /* Controller registers */ + 0x0 0x839a000 0x0 0x2000>; /* Block registers */ + interrupts = <GIC_SPI 185 IRQ_TYPE_LEVEL_HIGH>, + <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "qdma-error", "qdma-queue"; + dma-channels = <8>; + queues = <2>; + big-endian; + }; + +DMA clients must use the format described in dma/dma.txt file.
Document the devicetree bindings for NXP Layerscape qDMA controller which could be found on NXP QorIQ Layerscape SoCs. Signed-off-by: Wen He <wen.he_1@nxp.com> --- change in v4: - Rewrite the bindings document that follows generic DMA bindings file change in v3: - no change change in v2: - Remove indentation - Add "Should be" before 'fsl,ls1021a-qdma' - Replace 'channels' by 'dma-channels' - Replace 'qdma@8390000' by 'dma-controller@8390000' Documentation/devicetree/bindings/dma/fsl-qdma.txt | 41 ++++++++++++++++++++ 1 files changed, 41 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/dma/fsl-qdma.txt