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Message-Id: <174340449998.221709.10827817044945834716.b4-ty@linaro.org>
Date: Mon, 31 Mar 2025 09:01:39 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: linux-amlogic@...ts.infradead.org, 
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, jbrunet@...libre.com, khilman@...libre.com, 
 christianshewitt@...il.com
Subject: Re: [PATCH 0/7] dts: amlogic: enable UART RX and TX pull up by
 default

Hi,

On Sat, 29 Mar 2025 19:58:48 +0100, Martin Blumenstingl wrote:
> On the LibreELEC forum there have been reports that Odroid-C2 does not
> boot when UART is left disconnected [0]. It turns out that this can be
> solved by enabling the SoCs pull-up resistor on the UART RX and TX
> pads [1].
> It's not clear whether that specific Odroid-C2 board has a broken
> resistor, the resistor is not populated (either by accident or on
> purpose) or if there's another reason.
> 
> [...]

Thanks, Applied to https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux.git (v6.16/arm64-dt)

[1/7] ARM: dts: amlogic: meson8: enable UART RX and TX pull up by default
      https://git.kernel.org/amlogic/c/cfd9d2466ed2891bacb6319bcf9af55f21d0263e
[2/7] ARM: dts: amlogic: meson8b: enable UART RX and TX pull up by default
      https://git.kernel.org/amlogic/c/7374b06e8099ce7345ff3afd4bb756dde25971c1
[3/7] arm64: dts: amlogic: gxbb: enable UART RX and TX pull up by default
      https://git.kernel.org/amlogic/c/b00fe005612080772fe4f00c61e2fcdd2dea18f0
[4/7] arm64: dts: amlogic: gxl: enable UART RX and TX pull up by default
      https://git.kernel.org/amlogic/c/bbeb3017f1596a0551ba0ee40866f8b4e0ca2d3e
[5/7] arm64: dts: amlogic: g12: enable UART RX and TX pull up by default
      https://git.kernel.org/amlogic/c/867c3760da4ebd760115f17eca0b4bd3b668941c
[6/7] arm64: dts: amlogic: axg: enable UART RX and TX pull up by default
      https://git.kernel.org/amlogic/c/48d5da715331f2fd5e17e64f9e75e74248223b66
[7/7] arm64: dts: amlogic: a1: enable UART RX and TX pull up by default
      https://git.kernel.org/amlogic/c/b85aae3714e65d7b92a6c2c28f62cf66393dfcac

These changes has been applied on the intermediate git tree [1].

The v6.16/arm64-dt branch will then be sent via a formal Pull Request to the Linux SoC maintainers
for inclusion in their intermediate git branches in order to be sent to Linus during
the next merge window, or sooner if it's a set of fixes.

In the cases of fixes, those will be merged in the current release candidate
kernel and as soon they appear on the Linux master branch they will be
backported to the previous Stable and Long-Stable kernels [2].

The intermediate git branches are merged daily in the linux-next tree [3],
people are encouraged testing these pre-release kernels and report issues on the
relevant mailing-lists.

If problems are discovered on those changes, please submit a signed-off-by revert
patch followed by a corrective changeset.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux.git
[2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
[3] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git

-- 
Neil


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