diff options
| author | Johan Hovold <johan@kernel.org> | 2026-04-09 15:04:17 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-04-09 22:08:12 +0300 |
| commit | e6464140d439f2d42f072eb422a5b1fec470c5a6 (patch) | |
| tree | ce8ee6fcacadc79478f5aeb208a8c830ac288058 | |
| parent | 77953c76bec9af4191f8692a10225dd816208718 (diff) | |
| download | linux-e6464140d439f2d42f072eb422a5b1fec470c5a6.tar.xz | |
spi: microchip-core-qspi: fix controller deregistration
Make sure to deregister the controller before disabling underlying
resources like interrupts during driver unbind.
Fixes: 8596124c4c1b ("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>
| -rw-r--r-- | drivers/spi/spi-microchip-core-qspi.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/spi/spi-microchip-core-qspi.c b/drivers/spi/spi-microchip-core-qspi.c index aafe6cbf2aea..eab059fb0bc2 100644 --- a/drivers/spi/spi-microchip-core-qspi.c +++ b/drivers/spi/spi-microchip-core-qspi.c @@ -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); |