ARM: dts: at91: sama5d2: Add DMA bindings for the flx1 I2C function

Spare boards of duplicating the DMA bindings. Describe the flx1
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 <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20200514050301.147442-11-tudor.ambarus@microchip.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
index 1aa8b79..0e159f8 100644 (file)
--- a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
+++ b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
@@ -127,7 +127,6 @@
 
                                i2c3: i2c@600 {
                                        dmas = <0>, <0>;
-                                       dma-names = "tx", "rx";
                                        i2c-analog-filter;
                                        i2c-digital-filter;
                                        i2c-digital-filter-width-ns = <35>;

diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi
index 5a01629..855846c 100644 (file)
--- a/arch/arm/boot/dts/sama5d2.dtsi
+++ b/arch/arm/boot/dts/sama5d2.dtsi
@@ -712,6 +712,15 @@
                                        #address-cells = <1>;
                                        #size-cells = <0>;
                                        clocks = <&pmc PMC_TYPE_PERIPHERAL 20>;
+                                       dmas = <&dma0
+                                               (AT91_XDMAC_DT_MEM_IF(0) |
+                                                AT91_XDMAC_DT_PER_IF(1) |
+                                                AT91_XDMAC_DT_PERID(13))>,
+                                              <&dma0
+                                               (AT91_XDMAC_DT_MEM_IF(0) |
+                                                AT91_XDMAC_DT_PER_IF(1) |
+                                                AT91_XDMAC_DT_PERID(14))>;
+                                       dma-names = "tx", "rx";
                                        atmel,fifo-size = <16>;
                                        status = "disabled";
                                };