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spi: fsl-espi: fix controller deregistration

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Make sure to deregister the controller before disabling runtime PM
(which can leave the controller disabled) to allow SPI device drivers to
do I/O during deregistration.

Fixes: e9abb4db8d ("spi: fsl-espi: add runtime PM")
Cc: stable@vger.kernel.org	# 4.3
Cc: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260409120419.388546-14-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Johan Hovold
2026-04-09 14:04:12 +02:00
committed by Mark Brown
parent f4838934b6
commit e506a700a7
1 changed files with 9 additions and 1 deletions
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10
drivers/spi/spi-fsl-espi.c
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@@ -718,7 +718,7 @@ static int fsl_espi_probe(struct device *dev, struct resource *mem,
pm_runtime_enable(dev);
pm_runtime_get_sync(dev);
ret = devm_spi_register_controller(dev, host);
ret = spi_register_controller(host);
if (ret < 0)
goto err_pm;
@@ -782,7 +782,15 @@ static int of_fsl_espi_probe(struct platform_device *ofdev)
static void of_fsl_espi_remove(struct platform_device *dev)
{
struct spi_controller *host = platform_get_drvdata(dev);
spi_controller_get(host);
spi_unregister_controller(host);
pm_runtime_disable(&dev->dev);
spi_controller_put(host);
}
#ifdef CONFIG_PM_SLEEP