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spi: slave-mt27xx: fix controller deregistration

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Make sure to deregister the controller before disabling underlying
resources like clocks (by disabling runtime PM) during driver unbind.

Fixes: 805be7ddf3 ("spi: mediatek: add spi slave for Mediatek MT2712")
Cc: stable@vger.kernel.org	# 4.20
Cc: Leilk Liu <leilk.liu@mediatek.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260410081757.503099-16-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Johan Hovold
2026-04-10 10:17:45 +02:00
committed by Mark Brown
parent 0f25236694
commit ab840cbda4
1 changed files with 9 additions and 1 deletions
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10
drivers/spi/spi-slave-mt27xx.c
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@@ -453,7 +453,7 @@ static int mtk_spi_slave_probe(struct platform_device *pdev)
pm_runtime_enable(&pdev->dev);
ret = devm_spi_register_controller(&pdev->dev, ctlr);
ret = spi_register_controller(ctlr);
clk_disable_unprepare(mdata->spi_clk);
if (ret) {
dev_err(&pdev->dev,
@@ -473,7 +473,15 @@ static int mtk_spi_slave_probe(struct platform_device *pdev)
static void mtk_spi_slave_remove(struct platform_device *pdev)
{
struct spi_controller *ctlr = platform_get_drvdata(pdev);
spi_controller_get(ctlr);
spi_unregister_controller(ctlr);
pm_runtime_disable(&pdev->dev);
spi_controller_put(ctlr);
}
#ifdef CONFIG_PM_SLEEP