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spi: cadence: Probe and unbind fixes

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Several fixes from Johan for issues with unbind and error handling in
probe.
This commit is contained in:
Mark Brown
2026-05-01 10:14:39 +09:00
parent 4f12ee0a4d ecea4f0e9d
commit 8c0f9cd1df
1 changed files with 13 additions and 2 deletions
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15
drivers/spi/spi-cadence.c
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@@ -741,7 +741,6 @@ static int cdns_spi_probe(struct platform_device *pdev)
/* Set to default valid value */
ctlr->max_speed_hz = xspi->clk_rate / 4;
xspi->speed_hz = ctlr->max_speed_hz;
pm_runtime_put_autosuspend(&pdev->dev);
} else {
ctlr->mode_bits |= SPI_NO_CS;
ctlr->target_abort = cdns_target_abort;
@@ -752,12 +751,17 @@ static int cdns_spi_probe(struct platform_device *pdev)
goto clk_dis_all;
}
if (!spi_controller_is_target(ctlr))
pm_runtime_put_autosuspend(&pdev->dev);
return ret;
clk_dis_all:
if (!spi_controller_is_target(ctlr)) {
pm_runtime_disable(&pdev->dev);
pm_runtime_set_suspended(&pdev->dev);
pm_runtime_put_noidle(&pdev->dev);
pm_runtime_dont_use_autosuspend(&pdev->dev);
}
remove_ctlr:
spi_controller_put(ctlr);
@@ -776,16 +780,23 @@ static void cdns_spi_remove(struct platform_device *pdev)
{
struct spi_controller *ctlr = platform_get_drvdata(pdev);
struct cdns_spi *xspi = spi_controller_get_devdata(ctlr);
int ret = 0;
if (!spi_controller_is_target(ctlr))
ret = pm_runtime_get_sync(&pdev->dev);
spi_controller_get(ctlr);
spi_unregister_controller(ctlr);
cdns_spi_write(xspi, CDNS_SPI_ER, CDNS_SPI_ER_DISABLE);
if (ret >= 0)
cdns_spi_write(xspi, CDNS_SPI_ER, CDNS_SPI_ER_DISABLE);
if (!spi_controller_is_target(ctlr)) {
pm_runtime_disable(&pdev->dev);
pm_runtime_set_suspended(&pdev->dev);
pm_runtime_put_noidle(&pdev->dev);
pm_runtime_dont_use_autosuspend(&pdev->dev);
}
spi_controller_put(ctlr);