From mboxrd@z Thu Jan 1 00:00:00 1970 From: shawnguo@kernel.org (Shawn Guo) Date: Sun, 23 Oct 2016 22:03:23 +0800 Subject: [PATCH] ARM: dts: imx6sx: Fix LCDIF interrupt type In-Reply-To: <20161002164435.5812-1-marex@denx.de> References: <20161002164435.5812-1-marex@denx.de> Message-ID: <20161023140323.GW30578@tiger> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 > Cc: Lucas Stach > Cc: Fabio Estevam > Cc: Shawn Guo Applied, thanks.