]> git.hungrycats.org Git - linux/commitdiff
spi: Fix acpi deferred irq probe
authorStanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Fri, 22 Nov 2024 09:42:24 +0000 (10:42 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 9 Dec 2024 09:32:47 +0000 (10:32 +0100)
commit d24cfee7f63d6b44d45a67c5662bd1cc48e8b3ca upstream.

When probing spi device take care of deferred probe of ACPI irq gpio
similar like for OF/DT case.

>From practical standpoint this fixes issue with vsc-tp driver on
Dell XP 9340 laptop, which try to request interrupt with spi->irq
equal to -EPROBE_DEFER and fail to probe with the following error:

vsc-tp spi-INTC10D0:00: probe with driver vsc-tp failed with error -22

Suggested-by: Hans de Goede <hdegoede@redhat.com>
Fixes: 33ada67da352 ("ACPI / spi: attach GPIO IRQ from ACPI description to SPI device")
Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Alexis Lothoré <alexis.lothore@bootlin.com> # Dell XPS9320, ov01a10
Link: https://patch.msgid.link/20241122094224.226773-1-stanislaw.gruszka@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/spi/spi.c

index 5c57c7378ee708b58723eb763570cfb31e77a5f3..72e514cee056dd83bba748f8031a010bd449c989 100644 (file)
@@ -426,6 +426,16 @@ static int spi_probe(struct device *dev)
                        spi->irq = 0;
        }
 
+       if (has_acpi_companion(dev) && spi->irq < 0) {
+               struct acpi_device *adev = to_acpi_device_node(dev->fwnode);
+
+               spi->irq = acpi_dev_gpio_irq_get(adev, 0);
+               if (spi->irq == -EPROBE_DEFER)
+                       return -EPROBE_DEFER;
+               if (spi->irq < 0)
+                       spi->irq = 0;
+       }
+
        ret = dev_pm_domain_attach(dev, true);
        if (ret)
                return ret;
@@ -2706,9 +2716,6 @@ static acpi_status acpi_register_spi_device(struct spi_controller *ctlr,
        acpi_set_modalias(adev, acpi_device_hid(adev), spi->modalias,
                          sizeof(spi->modalias));
 
-       if (spi->irq < 0)
-               spi->irq = acpi_dev_gpio_irq_get(adev, 0);
-
        acpi_device_set_enumerated(adev);
 
        adev->power.flags.ignore_parent = true;