ARM: dts: at91: sama5d2_ptc_ek: Add comments to describe the aliases

Indicate which i2c alias is for which connector on the board.
Specify that serial0 is for DBGU. This eases tester's life.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Link: https://lore.kernel.org/r/20200514050301.147442-17-tudor.ambarus@microchip.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts b/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts
index 0e0341c83aa5a2f91948e31c0a211beda3ab4f02..45c671a2bcf21a93f4d553ad6a421e4efd802da6 100644 (file)
--- a/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts
+++ b/arch/arm/boot/dts/at91-sama5d2_ptc_ek.dts
@@ -18,9 +18,9 @@
        compatible = "atmel,sama5d2-ptc_ek", "atmel,sama5d2", "atmel,sama5";
 
        aliases {
-               serial0 = &uart0;
-               i2c0    = &i2c0;
-               i2c1    = &i2c1;
+               serial0 = &uart0;       /* DBGU */
+               i2c0    = &i2c0;        /* mikroBUS 1 */
+               i2c1    = &i2c1;        /* XPRO EXT1 */
                i2c2    = &i2c2;
        };