linux-kernel - Re: [PATCH v2] i2c: imx-lpi2c: Add runtime PM support for IRQ and clock management on i.MX8QXP/8QM

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Message-ID: <aW1zaXZsC_8KaM3N@zenone.zhora.eu>
Date: Mon, 19 Jan 2026 00:58:04 +0100
From: Andi Shyti <andi.shyti@...nel.org>
To: Carlos Song <carlos.song@....com>
Cc: frank.li@....com, aisheng.dong@....com, shawnguo@...nel.org, 
	s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com, 
	linux-i2c@...r.kernel.org, imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] i2c: imx-lpi2c: Add runtime PM support for IRQ and
 clock management on i.MX8QXP/8QM

Hi Carlos,

On Tue, Nov 25, 2025 at 04:47:18PM +0800, Carlos Song wrote:
> On i.MX8QXP/8QM SoCs, both the lvds/mipi and lvds/mipi-lpi2c power domains
> must enter low-power mode during runtime suspend to achieve deep power
> savings.
> 

...

> - Free its IRQ during runtime suspend and re-request it on resume.
> - Disable and unprepare all clocks during runtime suspend and prepare
>   and rne ble them on resume.
> 
> This enables the lvds/mipi domains to enter deep low-power mode,
> significantly reducing power consumption compared to active mode.
> 
> Signed-off-by: Carlos Song <carlos.song@....com>

merged to i2c/i2c-host.

Thanks,
Andi