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spi: bcmbca-hsspi: fix controller deregistration

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Make sure to deregister the controller before disabling underlying
resources like interrupts during driver unbind to allow SPI drivers to
do I/O during deregistration.

Note that clocks were also disabled before the recent commit
e532e21a24 ("spi: bcm63xx-hsspi: Simplify clock handling with
devm_clk_get_enabled()").

Fixes: a38a2233f2 ("spi: bcmbca-hsspi: Add driver for newer HSSPI controller")
Cc: stable@vger.kernel.org	# 6.3: deb269e039
Cc: stable@vger.kernel.org	# 6.3
Cc: William Zhang <william.zhang@broadcom.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260409120419.388546-8-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Johan Hovold
2026-04-09 14:04:06 +02:00
committed by Mark Brown
parent ab837c5189
commit c3d97c3320
1 changed files with 3 additions and 1 deletions
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4
drivers/spi/spi-bcmbca-hsspi.c
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@@ -538,7 +538,7 @@ static int bcmbca_hsspi_probe(struct platform_device *pdev)
return dev_err_probe(dev, ret, "couldn't register sysfs group\n");
/* register and we are done */
ret = devm_spi_register_controller(dev, host);
ret = spi_register_controller(host);
if (ret)
goto out_sysgroup_disable;
@@ -556,6 +556,8 @@ static void bcmbca_hsspi_remove(struct platform_device *pdev)
struct spi_controller *host = platform_get_drvdata(pdev);
struct bcmbca_hsspi *bs = spi_controller_get_devdata(host);
spi_unregister_controller(host);
/* reset the hardware and block queue progress */
__raw_writel(0, bs->regs + HSSPI_INT_MASK_REG);
sysfs_remove_group(&pdev->dev.kobj, &bcmbca_hsspi_group);