On 01-12-20, 19:06, Bjorn Andersson wrote: > On Mon 30 Nov 22:25 CST 2020, Vinod Koul wrote: > > > gpi_dma0 can be used for spi and i2c transfers on db845c, so enable it > > > > Signed-off-by: Vinod Koul <[email protected]> > > --- > > arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 4 ++++ > > 1 file changed, 4 insertions(+) > > > > diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts > > b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts > > index 7cc236575ee2..0653468f26ce 100644 > > --- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts > > +++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts > > @@ -418,6 +418,10 @@ &gcc { > > <GCC_QSPI_CNOC_PERIPH_AHB_CLK>; > > }; > > > > +&gpi_dma0 { > > + status = "okay"; > > +}; > > + > > But you're only enabling the gpi, you don't have anything wired to it, > so why enable it? > > I took a look downstream and they have all the i2c and spi nodes with > their dmas filled out - and the two gpis enabled at all times > (sdm845.dtsi). Can/should we do the same?
So dma is merged and in linux-next but support for spi/i2c is not as that is dependent upon dmaengine interface introduced for this. I was planning to post spi/i2c after rc1 and also the dts enabling them -- ~Vinod
