[PATCHv2] arm64: dts: r8a7795: enable DMA for I2C

[PATCHv2] arm64: dts: r8a7795: enable DMA for I2C

[Niklas Söderlund]

Add DMA properties to the I2C nodes.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---

Changes since v1
- Use correct phandle dmac0 for i2c3, i2c4, i2c5 and i2c6. Not all dmacX 
  instances are equal as they where on Gen2. Thanks Geert for pointing 
  this out.

 arch/arm64/boot/dts/renesas/r8a7795.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index a7315eb..80049d8 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -693,6 +693,8 @@
 			interrupts = <GIC_SPI 287 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 931>;
 			power-domains = <&cpg>;
+			dmas = <&dmac1 0x91>, <&dmac1 0x90>;
+			dma-names = "tx", "rx";
 			i2c-scl-internal-delay-ns = <110>;
 			status = "disabled";
 		};
@@ -705,6 +707,8 @@
 			interrupts = <GIC_SPI 288 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 930>;
 			power-domains = <&cpg>;
+			dmas = <&dmac1 0x93>, <&dmac1 0x92>;
+			dma-names = "tx", "rx";
 			i2c-scl-internal-delay-ns = <6>;
 			status = "disabled";
 		};
@@ -717,6 +721,8 @@
 			interrupts = <GIC_SPI 286 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 929>;
 			power-domains = <&cpg>;
+			dmas = <&dmac1 0x95>, <&dmac1 0x94>;
+			dma-names = "tx", "rx";
 			i2c-scl-internal-delay-ns = <6>;
 			status = "disabled";
 		};
@@ -729,6 +735,8 @@
 			interrupts = <GIC_SPI 290 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 928>;
 			power-domains = <&cpg>;
+			dmas = <&dmac0 0x97>, <&dmac0 0x96>;
+			dma-names = "tx", "rx";
 			i2c-scl-internal-delay-ns = <110>;
 			status = "disabled";
 		};
@@ -741,6 +749,8 @@
 			interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 927>;
 			power-domains = <&cpg>;
+			dmas = <&dmac0 0x99>, <&dmac0 0x98>;
+			dma-names = "tx", "rx";
 			i2c-scl-internal-delay-ns = <110>;
 			status = "disabled";
 		};
@@ -753,6 +763,8 @@
 			interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 919>;
 			power-domains = <&cpg>;
+			dmas = <&dmac0 0x9b>, <&dmac0 0x9a>;
+			dma-names = "tx", "rx";
 			i2c-scl-internal-delay-ns = <110>;
 			status = "disabled";
 		};
@@ -765,6 +777,8 @@
 			interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 918>;
 			power-domains = <&cpg>;
+			dmas = <&dmac0 0x9d>, <&dmac0 0x9c>;
+			dma-names = "tx", "rx";
 			i2c-scl-internal-delay-ns = <6>;
 			status = "disabled";
 		};
-- 
2.8.2

Re: [PATCHv2] arm64: dts: r8a7795: enable DMA for I2C

[Geert Uytterhoeven]

Hi Niklas,

On Tue, May 17, 2016 at 12:28 PM, Niklas Söderlund
<niklas.soderlund+renesas@ragnatech.se> wrote:
> Add DMA properties to the I2C nodes.
>
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

Thanks for the update!

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCHv2] arm64: dts: r8a7795: enable DMA for I2C

[Simon Horman]

On Tue, May 17, 2016 at 12:39:32PM +0200, Geert Uytterhoeven wrote:
> Hi Niklas,
> 
> On Tue, May 17, 2016 at 12:28 PM, Niklas Söderlund
> <niklas.soderlund+renesas@ragnatech.se> wrote:
> > Add DMA properties to the I2C nodes.
> >
> > Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> 
> Thanks for the update!
> 
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Thanks, I have queued this up.