On Thu, Aug 07, 2014 at 09:37:56AM +0900, Simon Horman wrote: > On Wed, Aug 06, 2014 at 02:59:06PM +0200, Geert Uytterhoeven wrote: > > Add a DMA property to the QSPI node > > > > Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> > > Cc: devicetree@xxxxxxxxxxxxxxx > > --- > > This depends on "[PATCH v2 8/8] ARM: shmobile: r8a7791: Add DMAC devices > > to DT" of series "[PATCH v2 0/8] R-Car Gen2 DMA Controller driver". > > Hi Geert, Hi Laurent, > > Am I correct in assuming that with this patch applied things > will continue to work the old way until the patch above applied > to the same tree and from there on the user will get the new behaviour? > > If so I think that I can take this patch as although the driver hasn't been > merged the relevant bindings were added to the subsystem maintainers tree > by "dmaengine: rcar-dmac: Add device tree bindings documentation" and are > available in linux-next. > > Likewise for "[v3] ARM: shmobile: r8a7791 dtsi: Enable DMA for MSIO". ... and "ARM: shmobile: r8a7790 dtsi: Enable DMA for QSPI" > > v2: > > - Update DMA specifiers to match the renesas,rcar-dmac bindings, > > v2: > > - QSPI needs to use 8-bit accesses for DMA, not 32-bit, > > - Reorder: TX first, RX second. > > --- > > arch/arm/boot/dts/r8a7791.dtsi | 2 ++ > > 1 file changed, 2 insertions(+) > > > > diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi > > index d59af615e365..8186c9f4a18a 100644 > > --- a/arch/arm/boot/dts/r8a7791.dtsi > > +++ b/arch/arm/boot/dts/r8a7791.dtsi > > @@ -1044,6 +1044,8 @@ > > reg = <0 0xe6b10000 0 0x2c>; > > interrupts = <0 184 IRQ_TYPE_LEVEL_HIGH>; > > clocks = <&mstp9_clks R8A7791_CLK_QSPI_MOD>; > > + dmas = <&dmac0 0x17>, <&dmac0 0x18>; > > + dma-names = "tx", "rx"; > > num-cs = <1>; > > #address-cells = <1>; > > #size-cells = <0>; > > -- > > 1.9.1 > > -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
