linux-kernel - Re: [PATCH] spi: cadence-quadspi: Fix clock enable underflows due to runtime PM

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Message-ID: <8c6b5d14-ffc9-41e6-94ff-431f381a39cd@sirena.org.uk>
Date: Thu, 4 Dec 2025 13:44:44 +0000
From: Mark Brown <broonie@...nel.org>
To: Francesco Dolcini <francesco@...cini.it>
Cc: Siddharth Vadapalli <s-vadapalli@...com>, Anurag Dutta <a-dutta@...com>,
	linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Subject: Re: [PATCH] spi: cadence-quadspi: Fix clock enable underflows due to
 runtime PM

On Thu, Dec 04, 2025 at 01:28:05PM +0000, Mark Brown wrote:

> issue and test directly rather than working blind, I've also noticed
> that we're getting

> [   15.430306] cadence-qspi 13010000.spi: Runtime PM usage count underflow!

> even in normal operation (on that system anyway) so the runtime PM
> handling is definitely unhappy.

Ah, I applied a patch the other day fixing that one.

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