From: Igor Velkov <iav@iav.lv>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Dafna Hirschfeld <dafna@fastmail.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Nicolas Dufresne <nicolas.dufresne@collabora.com>,
Hans Verkuil <hverkuil@kernel.org>,
Heiko Stuebner <heiko@sntech.de>,
linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Igor Velkov <iav@iav.lv>
Subject: Re: [PATCH] media: rkisp1: Depend on PM
Date: Tue, 03 Nov 2026 01:25:45 +0200 [thread overview]
Message-ID: <20261103-rkisp1-pm-reply-2@iav.lv> (raw)
In-Reply-To: <20261102231206.GA3559911@killaraus.ideasonboard.com>
On Tue, Nov 03, 2026, Laurent Pinchart wrote:
> What does the driver bind to when running on a system that has PM=n ? On
> which platform can that happen ?
None that I can name: the nodes exist only on Rockchip and i.MX8 boards,
and those select PM. The patch came out of the rkvdec thread, where Nicolas
pointed out that with PM=n the first MMIO access can hang and asked to
check similar drivers [1]; rkisp1 and rga had the same pattern. If that
case is not worth guarding, I'll drop it.
[1] https://lore.kernel.org/r/8aafdbbf04a0d939c6b4d7d5577d97bb58d1c439.camel@collabora.com
next prev parent reply other threads:[~2026-11-02 23:26 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-02 17:49 Igor Velkov via B4 Relay
2026-11-02 22:33 ` Laurent Pinchart
2026-11-03 0:55 ` Igor Velkov
2026-11-02 23:12 ` Laurent Pinchart
2026-11-02 23:25 ` Igor Velkov [this message]
2026-11-02 23:42 ` Laurent Pinchart
2026-11-02 23:46 ` Nicolas Dufresne
2026-11-03 0:01 ` Igor Velkov
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