linux-kernel - Re: [PATCH v2 1/1] arm64: dts: lx2160a: Fix the compatible string of LX2160A UART

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Date:   Sat, 14 Aug 2021 12:47:04 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Leo Li <leoyang.li@....com>
Cc:     Zhen Lei <thunder.leizhen@...wei.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Kettenis <mark.kettenis@...all.nl>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/1] arm64: dts: lx2160a: Fix the compatible string of
 LX2160A UART

On Mon, Aug 09, 2021 at 10:52:04PM +0000, Leo Li wrote:
> 
> 
> > -----Original Message-----
> > From: Zhen Lei <thunder.leizhen@...wei.com>
> > Sent: Tuesday, June 15, 2021 8:16 AM
> > To: Shawn Guo <shawnguo@...nel.org>; Leo Li <leoyang.li@....com>; Rob
> > Herring <robh+dt@...nel.org>; Mark Kettenis <mark.kettenis@...all.nl>;
> > devicetree <devicetree@...r.kernel.org>; linux-arm-kernel <linux-arm-
> > kernel@...ts.infradead.org>; linux-kernel <linux-kernel@...r.kernel.org>
> > Cc: Zhen Lei <thunder.leizhen@...wei.com>
> > Subject: [PATCH v2 1/1] arm64: dts: lx2160a: Fix the compatible string of
> > LX2160A UART
> > 
> > Mark Kettenis told us that:
> > According to the NXP documentation, the LX2160A has a real PL011 UART.
> > 
> > Therefore, rewrite it to the compatible string of pl011. The property "current-
> > speed" specific to "arm,sbsa-uart" is also deleted.
> 
> Sorry that I missed the discussion on the v1.  But looks like this change breaks the LX2160 boot.  The AMBA matching doesn't seem to work.  And the console is not registered correctly.
> 
> [    0.639055] OF: amba_device_add() failed (-2) for /soc/serial@...0000
> [    0.645612] OF: amba_device_add() failed (-2) for /soc/serial@...0000

Patch dropped.

Shawn