[PATCH] arm64: dts: allwinner: pine64: Add remaining UART aliases

[PATCH] arm64: dts: allwinner: pine64: Add remaining UART aliases

[Andreas Färber]

Enabling uart2 node currently leads to a /dev/ttyS1 device, with ttyS0..4
always present, causing confusion on the user's part.

dtc cannot resolve an overlay's &uart2 reference for strings, only for
phandles, so it would need to hardcode the full node path.

Avoid this and enforce reliable numbering by adding serialX aliases for:

UART1 - on Wifi/BT connector
UART2 - on Pi-2 connector
UART3 - on Euler connector
UART4 - on Euler connector

Signed-off-by: Andreas F?rber <afaerber@suse.de>
---
 arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
index c680ed385da3..db6c0f36999e 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
@@ -52,6 +52,10 @@
 
 	aliases {
 		serial0 = &uart0;
+		serial1 = &uart1;
+		serial2 = &uart2;
+		serial3 = &uart3;
+		serial4 = &uart4;
 	};
 
 	chosen {
-- 
2.10.2

[PATCH] arm64: dts: allwinner: pine64: Add remaining UART aliases

[Maxime Ripard]

On Fri, Apr 14, 2017 at 09:08:04PM +0200, Andreas F?rber wrote:
> Enabling uart2 node currently leads to a /dev/ttyS1 device, with ttyS0..4
> always present, causing confusion on the user's part.
> 
> dtc cannot resolve an overlay's &uart2 reference for strings, only for
> phandles, so it would need to hardcode the full node path.
> 
> Avoid this and enforce reliable numbering by adding serialX aliases for:
> 
> UART1 - on Wifi/BT connector
> UART2 - on Pi-2 connector
> UART3 - on Euler connector
> UART4 - on Euler connector
> 
> Signed-off-by: Andreas F?rber <afaerber@suse.de>

Applied, thanks

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 801 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20170418/c26970a1/attachment.sig>