| Message ID | 20170830233609.13855-4-stefan.bruens@rwth-aachen.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 31 August 2017 at 01:36, Stefan Brüns <stefan.bruens@rwth-aachen.de> wrote: > The A64 SoC has the same dma engine as the H3 (sun8i), with a > reduced amount of physical channels. Add the proper config data > and compatible string to support it. > > Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> > --- > arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 4 ++++ > drivers/dma/sun6i-dma.c | 7 +++++++ > 2 files changed, 11 insertions(+) > > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi > index f96287d3043a..b86019238b77 100644 > --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi > +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi > @@ -494,6 +494,8 @@ > interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>; > clocks = <&ccu CLK_BUS_SPI0>, <&ccu CLK_SPI0>; > clock-names = "ahb", "mod"; > + dmas = <&dma 23>, <&dma 23>; > + dma-names = "rx", "tx"; Hi Stefan, the dtsi parts should be in a separate patch > pinctrl-names = "default"; > pinctrl-0 = <&spi0_pins>; > resets = <&ccu RST_BUS_SPI0>; > @@ -509,6 +511,8 @@ > interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>; > clocks = <&ccu CLK_BUS_SPI1>, <&ccu CLK_SPI1>; > clock-names = "ahb", "mod"; > + dmas = <&dma 24>, <&dma 24>; > + dma-names = "rx", "tx"; > pinctrl-names = "default"; > pinctrl-0 = <&spi1_pins>; > resets = <&ccu RST_BUS_SPI1>; > diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c > index 5f4eee4513e5..6a17c5d63582 100644 > --- a/drivers/dma/sun6i-dma.c > +++ b/drivers/dma/sun6i-dma.c > @@ -1068,6 +1068,12 @@ static struct sun6i_dma_config sun8i_h3_dma_cfg = { > .nr_max_vchans = 34, > .dmac_variant = DMAC_VARIANT_H3, > }; > + > +static struct sun6i_dma_config sun50i_a64_dma_cfg = { > + .nr_max_channels = 8, > + .nr_max_requests = 27, > + .nr_max_vchans = 38, > + .dmac_variant = DMAC_VARIANT_H3, > }; > > static const struct of_device_id sun6i_dma_match[] = { > @@ -1075,6 +1081,7 @@ static const struct of_device_id sun6i_dma_match[] = { > { .compatible = "allwinner,sun8i-a23-dma", .data = &sun8i_a23_dma_cfg }, > { .compatible = "allwinner,sun8i-a83t-dma", .data = &sun8i_a83t_dma_cfg }, > { .compatible = "allwinner,sun8i-h3-dma", .data = &sun8i_h3_dma_cfg }, > + { .compatible = "allwinner,sun50i-a64-dma", .data = &sun50i_a64_dma_cfg }, This all looks fine...it's similar to my patch here https://github.com/codekipper/linux-sunxi/commit/8c54d9852dfad6ceb478c579a1213f38fb12fa80 which I've been too lazy to post. I think the binding documentation should go with this patch and this should also be the 1st patch in the series, followed by the dtsi changes. BR, CK > { /* sentinel */ } > }; > MODULE_DEVICE_TABLE(of, sun6i_dma_match); > -- > 2.14.1 >
On Thu, Aug 31, 2017 at 01:36:09AM +0200, Stefan Brüns wrote: > The A64 SoC has the same dma engine as the H3 (sun8i), with a > reduced amount of physical channels. Add the proper config data > and compatible string to support it. > > Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> > --- > arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 4 ++++ > drivers/dma/sun6i-dma.c | 7 +++++++ > 2 files changed, 11 insertions(+) With what device did you test this? As far as I know, the SPI driver doesn't use DMA at all. Maxime
On 31 August 2017 at 16:52, Maxime Ripard <maxime.ripard@free-electrons.com> wrote: > On Thu, Aug 31, 2017 at 01:36:09AM +0200, Stefan Brüns wrote: >> The A64 SoC has the same dma engine as the H3 (sun8i), with a >> reduced amount of physical channels. Add the proper config data >> and compatible string to support it. >> >> Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> >> --- >> arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 4 ++++ >> drivers/dma/sun6i-dma.c | 7 +++++++ >> 2 files changed, 11 insertions(+) > > With what device did you test this? As far as I know, the SPI driver > doesn't use DMA at all. > Hi Maxime, I've tested this on spdif and i2s on the Pine64. BR, CK > Maxime > > -- > Maxime Ripard, Free Electrons > Embedded Linux and Kernel engineering > http://free-electrons.com > > -- > You received this message because you are subscribed to the Google Groups "linux-sunxi" group. > To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscribe@googlegroups.com. > For more options, visit https://groups.google.com/d/optout.
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi index f96287d3043a..b86019238b77 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi @@ -494,6 +494,8 @@ interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>; clocks = <&ccu CLK_BUS_SPI0>, <&ccu CLK_SPI0>; clock-names = "ahb", "mod"; + dmas = <&dma 23>, <&dma 23>; + dma-names = "rx", "tx"; pinctrl-names = "default"; pinctrl-0 = <&spi0_pins>; resets = <&ccu RST_BUS_SPI0>; @@ -509,6 +511,8 @@ interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>; clocks = <&ccu CLK_BUS_SPI1>, <&ccu CLK_SPI1>; clock-names = "ahb", "mod"; + dmas = <&dma 24>, <&dma 24>; + dma-names = "rx", "tx"; pinctrl-names = "default"; pinctrl-0 = <&spi1_pins>; resets = <&ccu RST_BUS_SPI1>; diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c index 5f4eee4513e5..6a17c5d63582 100644 --- a/drivers/dma/sun6i-dma.c +++ b/drivers/dma/sun6i-dma.c @@ -1068,6 +1068,12 @@ static struct sun6i_dma_config sun8i_h3_dma_cfg = { .nr_max_vchans = 34, .dmac_variant = DMAC_VARIANT_H3, }; + +static struct sun6i_dma_config sun50i_a64_dma_cfg = { + .nr_max_channels = 8, + .nr_max_requests = 27, + .nr_max_vchans = 38, + .dmac_variant = DMAC_VARIANT_H3, }; static const struct of_device_id sun6i_dma_match[] = { @@ -1075,6 +1081,7 @@ static const struct of_device_id sun6i_dma_match[] = { { .compatible = "allwinner,sun8i-a23-dma", .data = &sun8i_a23_dma_cfg }, { .compatible = "allwinner,sun8i-a83t-dma", .data = &sun8i_a83t_dma_cfg }, { .compatible = "allwinner,sun8i-h3-dma", .data = &sun8i_h3_dma_cfg }, + { .compatible = "allwinner,sun50i-a64-dma", .data = &sun50i_a64_dma_cfg }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, sun6i_dma_match);
The A64 SoC has the same dma engine as the H3 (sun8i), with a reduced amount of physical channels. Add the proper config data and compatible string to support it. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> --- arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 4 ++++ drivers/dma/sun6i-dma.c | 7 +++++++ 2 files changed, 11 insertions(+)