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From: "Andreas Färber" <afaerber-l3A5Bk7waGM@public.gmane.org>
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Cc: "Andreas Färber" <afaerber-l3A5Bk7waGM@public.gmane.org>,
	"Maxime Ripard"
	<maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>,
	"Chen-Yu Tsai" <wens-jdAy2FN1RRM@public.gmane.org>,
	"Rob Herring" <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	"Mark Rutland" <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
	"Catalin Marinas" <catalin.marinas-5wv7dgnIgG8@public.gmane.org>,
	"Will Deacon" <will.deacon-5wv7dgnIgG8@public.gmane.org>,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH] arm64: dts: allwinner: pine64: Add remaining UART aliases
Date: Fri, 14 Apr 2017 21:08:04 +0200	[thread overview]
Message-ID: <20170414190804.21865-1-afaerber@suse.de> (raw)

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 Färber <afaerber-l3A5Bk7waGM@public.gmane.org>
---
 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

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             reply	other threads:[~2017-04-14 19:08 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-14 19:08 Andreas Färber [this message]
     [not found] ` <20170414190804.21865-1-afaerber-l3A5Bk7waGM@public.gmane.org>
2017-04-18  5:35   ` [PATCH] arm64: dts: allwinner: pine64: Add remaining UART aliases Maxime Ripard

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