Thread (3 messages) 3 messages, 3 authors, 2026-01-18

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

From: Andi Shyti <andi.shyti@kernel.org>
Date: 2026-01-18 23:58:09
Also in: imx, linux-i2c, lkml

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 <redacted>
merged to i2c/i2c-host.

Thanks,
Andi
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