From: shawnguo@kernel.org (Shawn Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: dts: imx6sx: Fix LCDIF interrupt type
Date: Sun, 23 Oct 2016 22:03:23 +0800 [thread overview]
Message-ID: <20161023140323.GW30578@tiger> (raw)
In-Reply-To: <20161002164435.5812-1-marex@denx.de>
On Sun, Oct 02, 2016 at 06:44:35PM +0200, Marek Vasut wrote:
> The LCDIF interrupt should be triggered by the rising edge of the
> IRQ line because we only want the interrupt to trigger once per each
> frame. It seems the LCDIF IRQ line cannot be explicitly de-asserted
> by software, so the previous behavior before this patch, where the
> interrupt was triggered by level-high status of the IRQ line, caused
> the interrupt to fire again immediatelly after it was handled, which
> caused the system to lock up due to the high rate of interrupts.
>
> Signed-off-by: Marek Vasut <marex@denx.de>
> Cc: Lucas Stach <l.stach@pengutronix.de>
> Cc: Fabio Estevam <fabio.estevam@nxp.com>
> Cc: Shawn Guo <shawnguo@kernel.org>
Applied, thanks.
prev parent reply other threads:[~2016-10-23 14:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-02 16:44 [PATCH] ARM: dts: imx6sx: Fix LCDIF interrupt type Marek Vasut
2016-10-02 17:43 ` Fabio Estevam
2016-10-02 18:29 ` Marek Vasut
2016-10-10 13:35 ` Lucas Stach
2016-10-10 14:42 ` Marek Vasut
2016-10-23 14:03 ` Shawn Guo [this message]
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