From: Peng Fan <peng.fan@oss.nxp.com>
To: Francesco Valla <francesco@valla.it>
Cc: "NXP i.MX U-Boot Team" <uboot-imx@nxp.com>,
u-boot@lists.denx.de, Fabio Estevam <festevam@gmail.com>,
Stefano Babic <sbabic@nabladev.com>,
Tom Rini <trini@konsulko.com>, Peng Fan <peng.fan@nxp.com>,
Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>,
Joseph Guo <qijian.guo@nxp.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
Fabian Pflug <f.pflug@pengutronix.de>
Subject: Re: [PATCH] imx93_frdm: clear and mask TCPC interrupts
Date: Wed, 7 Jan 2026 09:39:13 +0800 [thread overview]
Message-ID: <aV25QVMb5CNVN5sw@shlinux89> (raw)
In-Reply-To: <20260103-imx93_frdm_tcpc_fix-v1-1-d7ef892697eb@valla.it>
On Sat, Jan 03, 2026 at 10:22:12PM +0100, Francesco Valla wrote:
>One of the two on-board PTN5110 TCPC USB Power Delivery controller on
>the i.MX93 FRDM board shares its interrupt line whith the PCAL6524 power
>controller (GPIO3-27). Since the PTN5110 starts after POR with the
>interrupts enabled, this can lead to an interrupt storm on OS startup if
>only the driver for the PCAL6524 is loaded, because none is servicing
>(and clearing) the interrupt requests from the PTN5110.
>
>Maks and clear all interrupts as part uring board initialization; they
>can be re-enabled later by a proper OS driver if required.
>
>Co-developed-by: Joseph Guo <qijian.guo@nxp.com>
>Signed-off-by: Francesco Valla <francesco@valla.it>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
next prev parent reply other threads:[~2026-01-07 12:39 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-03 21:22 [PATCH] imx93_frdm: clear and mask TCPC interrupts Francesco Valla
2026-01-03 23:41 ` Fabio Estevam
2026-01-06 14:40 ` Thomas Petazzoni
2026-01-07 1:39 ` Peng Fan [this message]
2026-01-18 1:45 ` Fabio Estevam
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