From: andrew@lunn.ch (Andrew Lunn)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/3] arm64: dts: armada-3720-espressobin: wire up LED2
Date: Wed, 21 Mar 2018 14:19:30 +0100 [thread overview]
Message-ID: <20180321131930.GD11206@lunn.ch> (raw)
In-Reply-To: <20180321105005.18426-3-u.kleine-koenig@pengutronix.de>
On Wed, Mar 21, 2018 at 11:50:05AM +0100, Uwe Kleine-K?nig wrote:
> The led is connected to MPP1_2.
>
> Signed-off-by: Uwe Kleine-K?nig <u.kleine-koenig@pengutronix.de>
> ---
> Note the LED doesn't work for me on two different boards.
Do you have a board it does work with?
> But the voltage levels on one side of the LED changes from 1.76V to
> 0V when enabling the LED. So there is probably something fishy,
> don't know if it is hardware or software related.
I think we should not apply this patch until we get a better idea why
it does not work. Is 1.76V not enough? Is the LED mounted the wrong
way around? Not enough current?
Andrew
next prev parent reply other threads:[~2018-03-21 13:19 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-21 10:50 [PATCH 1/3] arm64: dts: marvell: armada-37xx: mark the gpio controllers as irq controller Uwe Kleine-König
2018-03-21 10:50 ` [PATCH 2/3] arm64: dts: armada-3720-espressobin: make use of switch irq line Uwe Kleine-König
2018-03-21 13:15 ` Andrew Lunn
2018-03-21 13:23 ` Uwe Kleine-König
2018-03-21 13:29 ` Andrew Lunn
2018-03-21 10:50 ` [PATCH 3/3] arm64: dts: armada-3720-espressobin: wire up LED2 Uwe Kleine-König
2018-03-21 13:19 ` Andrew Lunn [this message]
2018-03-21 14:06 ` Uwe Kleine-König
2020-08-28 18:39 ` Pali Rohár
2018-03-24 21:08 ` Gregory CLEMENT
2018-03-21 13:23 ` [PATCH 1/3] arm64: dts: marvell: armada-37xx: mark the gpio controllers as irq controller Andrew Lunn
2018-03-23 16:34 ` Gregory CLEMENT
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