ARM: dts: at91: sama5d2: Add DMA bindings for the SPI and I2C flx0 fu…

…nctions Spare boards of duplicating the DMA bindings. Describe the flx0 DMA bindings in the SoC dtsi. Users that don't want to use DMA for their flexcom functions have to overwrite the flexcom DMA bindings in their board device tree. Signed-off-by: Tudor Ambarus <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexandre Belloni <[email protected]>
soumdtt · May 15, 2020 · 466fb89 · 466fb89
1 parent 1a6508a
commit 466fb89
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Showing 3 changed files with 19 additions and 1 deletion.
diff --git a/arch/arm/boot/dts/at91-sama5d2_icp.dts b/arch/arm/boot/dts/at91-sama5d2_icp.dts
@@ -105,6 +105,7 @@
 	status = "okay";
 
 	spi2: spi@400 {
+		dmas = <0>, <0>;
 		cs-gpios = <&pioA PIN_PC0 GPIO_ACTIVE_LOW>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_mikrobus2_spi &pinctrl_ksz_spi_cs>;

diff --git a/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts b/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts
@@ -192,7 +192,6 @@
 
 				i2c2: i2c@600 {
 					dmas = <0>, <0>;
-					dma-names = "tx", "rx";
 					pinctrl-names = "default", "gpio";
 					pinctrl-0 = <&pinctrl_flx0_default>;
 					pinctrl-1 = <&pinctrl_flx0_gpio>;

diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi
@@ -661,6 +661,15 @@
 					interrupts = <19 IRQ_TYPE_LEVEL_HIGH 7>;
 					clocks = <&pmc PMC_TYPE_PERIPHERAL 19>;
 					clock-names = "spi_clk";
+					dmas = <&dma0
+						(AT91_XDMAC_DT_MEM_IF(0) |
+						 AT91_XDMAC_DT_PER_IF(1) |
+						 AT91_XDMAC_DT_PERID(11))>,
+					       <&dma0
+						(AT91_XDMAC_DT_MEM_IF(0) |
+						 AT91_XDMAC_DT_PER_IF(1) |
+						 AT91_XDMAC_DT_PERID(12))>;
+					dma-names = "tx", "rx";
 					atmel,fifo-size = <16>;
 					status = "disabled";
 				};
@@ -672,6 +681,15 @@
 					#address-cells = <1>;
 					#size-cells = <0>;
 					clocks = <&pmc PMC_TYPE_PERIPHERAL 19>;
+					dmas = <&dma0
+						(AT91_XDMAC_DT_MEM_IF(0) |
+						 AT91_XDMAC_DT_PER_IF(1) |
+						 AT91_XDMAC_DT_PERID(11))>,
+					       <&dma0
+						(AT91_XDMAC_DT_MEM_IF(0) |
+						 AT91_XDMAC_DT_PER_IF(1) |
+						 AT91_XDMAC_DT_PERID(12))>;
+					dma-names = "tx", "rx";
 					atmel,fifo-size = <16>;
 					status = "disabled";
 				};