Re: [PATCH v4 5/8] ARM: dts: at91: sam9x60: Add DMA bindings for the flexcom nodes

Claudiu.Beznea
2023-01-16T09:56:51Z

On 12.01.2023 13:02, Durai Manickam KR wrote:
> From: Manikandan Muralidharan <manikandan.m@microchip.com>
>
> Add dma bindings for flexcom nodes in the soc dtsi file. Users those who
> don't wish to use the DMA function for their flexcom functions can
> overwrite the dma bindings in the board device tree file.
>
> Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
> [durai.manickamkr@microchip.com: fixed code indentation and updated commit log]
> Signed-off-by: Durai Manickam KR <durai.manickamkr@microchip.com>

Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>

> ---
> arch/arm/boot/dts/at91-sam9x60ek.dts | 3 +++
> arch/arm/boot/dts/sam9x60.dtsi | 27 +++++++++++++++++++++++++++
> 2 files changed, 30 insertions(+)
>
> diff --git a/arch/arm/boot/dts/at91-sam9x60ek.dts b/arch/arm/boot/dts/at91-sam9x60ek.dts
> index 6b6391d5041e..180e4b1aa2f6 100644
> --- a/arch/arm/boot/dts/at91-sam9x60ek.dts
> +++ b/arch/arm/boot/dts/at91-sam9x60ek.dts
> @@ -209,6 +209,7 @@ &flx0 {
> i2c0: i2c@600 {
> #address-cells = <1>;
> #size-cells = <0>;
> + dmas = <0>, <0>;
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_flx0_default>;
> i2c-analog-filter;
> @@ -230,6 +231,7 @@ &flx4 {
> status = "disabled";
>
> spi4: spi@400 {
> + dmas = <0>, <0>;
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_flx4_default>;
> status = "disabled";
> @@ -254,6 +256,7 @@ &flx6 {
> i2c6: i2c@600 {
> #address-cells = <1>;
> #size-cells = <0>;
> + dmas = <0>, <0>;
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_flx6_default>;
> i2c-analog-filter;
> diff --git a/arch/arm/boot/dts/sam9x60.dtsi b/arch/arm/boot/dts/sam9x60.dtsi
> index fbdde3ab1086..8f44854dd8fa 100644
> --- a/arch/arm/boot/dts/sam9x60.dtsi
> +++ b/arch/arm/boot/dts/sam9x60.dtsi
> @@ -177,6 +177,15 @@ spi4: spi@400 {
> interrupts = <13 IRQ_TYPE_LEVEL_HIGH 7>;
> clocks = <&pmc PMC_TYPE_PERIPHERAL 13>;
> clock-names = "spi_clk";
> + dmas = <&dma0
> + (AT91_XDMAC_DT_MEM_IF(0) |
> + AT91_XDMAC_DT_PER_IF(1) |
> + AT91_XDMAC_DT_PERID(8))>,
> + <&dma0
> + (AT91_XDMAC_DT_MEM_IF(0) |
> + AT91_XDMAC_DT_PER_IF(1) |
> + AT91_XDMAC_DT_PERID(9))>;
> + dma-names = "tx", "rx";
> atmel,fifo-size = <16>;
> status = "disabled";
> };
> @@ -417,6 +426,15 @@ i2c6: i2c@600 {
> reg = <0x600 0x200>;
> interrupts = <9 IRQ_TYPE_LEVEL_HIGH 7>;
> clocks = <&pmc PMC_TYPE_PERIPHERAL 9>;
> + dmas = <&dma0
> + (AT91_XDMAC_DT_MEM_IF(0) |
> + AT91_XDMAC_DT_PER_IF(1) |
> + AT91_XDMAC_DT_PERID(12))>,
> + <&dma0
> + (AT91_XDMAC_DT_MEM_IF(0) |
> + AT91_XDMAC_DT_PER_IF(1) |
> + AT91_XDMAC_DT_PERID(13))>;
> + dma-names = "tx", "rx";
> atmel,fifo-size = <16>;
> status = "disabled";
> };
> @@ -456,6 +474,15 @@ i2c0: i2c@600 {
> reg = <0x600 0x200>;
> interrupts = <5 IRQ_TYPE_LEVEL_HIGH 7>;
> clocks = <&pmc PMC_TYPE_PERIPHERAL 5>;
> + dmas = <&dma0
> + (AT91_XDMAC_DT_MEM_IF(0) |
> + AT91_XDMAC_DT_PER_IF(1) |
> + AT91_XDMAC_DT_PERID(0))>,
> + <&dma0
> + (AT91_XDMAC_DT_MEM_IF(0) |
> + AT91_XDMAC_DT_PER_IF(1) |
> + AT91_XDMAC_DT_PERID(1))>;
> + dma-names = "tx", "rx";
> atmel,fifo-size = <16>;
> status = "disabled";
> };