github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-06 05:27:07 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

spi: microchip-core-qspi: fix controller deregistration

Browse Source 
Make sure to deregister the controller before disabling underlying
resources like interrupts during driver unbind.

Fixes: 8596124c4c ("spi: microchip-core-qspi: Add support for microchip fpga qspi controllers")
Cc: stable@vger.kernel.org	# 6.1
Cc: Naga Sureshkumar Relli <nagasuresh.relli@microchip.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20260409120419.388546-19-johan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Johan Hovold 2026-04-09 14:04:17 +02:00 committed by Mark Brown
parent 77953c76be
commit e6464140d4
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 8 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/spi/spi-microchip-core-qspi.c
View File

@ -692,7 +692,7 @@ static int mchp_coreqspi_probe(struct platform_device *pdev)
return -ENOMEM;
qspi = spi_controller_get_devdata(ctlr);
platform_set_drvdata(pdev, qspi);
platform_set_drvdata(pdev, ctlr);
qspi->regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(qspi->regs))
@ -732,7 +732,7 @@ static int mchp_coreqspi_probe(struct platform_device *pdev)
ctlr->num_chipselect = 2;
ctlr->use_gpio_descriptors = true;
ret = devm_spi_register_controller(&pdev->dev, ctlr);
ret = spi_register_controller(ctlr);
if (ret)
return dev_err_probe(&pdev->dev, ret,
"spi_register_controller failed\n");
@ -742,9 +742,13 @@ static int mchp_coreqspi_probe(struct platform_device *pdev)
static void mchp_coreqspi_remove(struct platform_device *pdev)
{
struct mchp_coreqspi *qspi = platform_get_drvdata(pdev);
u32 control = readl_relaxed(qspi->regs + REG_CONTROL);
struct spi_controller *ctlr = platform_get_drvdata(pdev);
struct mchp_coreqspi *qspi = spi_controller_get_devdata(ctlr);
u32 control;
spi_unregister_controller(ctlr);
control = readl_relaxed(qspi->regs + REG_CONTROL);
mchp_coreqspi_disable_ints(qspi);
control &= ~CONTROL_ENABLE;
writel_relaxed(control, qspi->regs + REG_CONTROL);