Hello, expanding Cc a bit to include Shawn and the kernel teams of Pengutronix and NXP.
On Mon, Jul 09, 2018 at 11:43:04AM +0200, Esben Haabendal wrote: > From: Esben Haabendal <e...@deif.com> > > Gives substantial performance improvement for transfers larger than 16 > bytes (DMA_THRESHOLD). Smaller transfers are unaffected. > > Signed-off-by: Esben Haabendal <e...@deif.com> > --- > arch/arm/boot/dts/ls1021a.dtsi | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi > index c55d479971cc..1e5640701c65 100644 > --- a/arch/arm/boot/dts/ls1021a.dtsi > +++ b/arch/arm/boot/dts/ls1021a.dtsi > @@ -363,6 +363,8 @@ > interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>; > clock-names = "i2c"; > clocks = <&clockgen 4 1>; > + dma-names = "tx", "rx"; > + dmas = <&edma0 1 39>, <&edma0 1 38>; > status = "disabled"; > }; > > @@ -374,6 +376,8 @@ > interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>; > clock-names = "i2c"; > clocks = <&clockgen 4 1>; > + dma-names = "tx", "rx"; > + dmas = <&edma0 1 37>, <&edma0 1 36>; > status = "disabled"; > }; > > @@ -385,6 +389,8 @@ > interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>; > clock-names = "i2c"; > clocks = <&clockgen 4 1>; > + dma-names = "tx", "rx"; > + dmas = <&edma0 1 35>, <&edma0 1 34>; > status = "disabled"; > }; This is a bit orthogonal to the other changes in this series and needs at least an ack from Shawn. Looks ok in my eyes. Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ |
