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authorDan O'Donovan <dan@emutex.com>2017-02-05 19:30:14 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-02-07 15:31:51 +0300
commit0c6543f6cda442f5497b2d59ac0dcdda45f4778c (patch)
tree5b5fd6e2f9ac75ecc1b4e9cc357f003d367b34d5 /drivers/spi/spi.c
parent622b307712f1d02048a7abbe376cf30f04c5b310 (diff)
downloadlinux-0c6543f6cda442f5497b2d59ac0dcdda45f4778c.tar.xz
spi: acpi: Initialize modalias from of_compatible
When using devicetree spi_device.modalias is set to the compatible string with the vendor prefix removed. For SPI devices described via ACPI the spi_device.modalias string is initialized by acpi_device_hid. When using ACPI and DT ids this string ends up something like "PRP0001". Change acpi_register_spi_device to use the of_compatible property if present. This makes it easier to instantiate spi drivers through ACPI with DT ids. Signed-off-by: Dan O'Donovan <dan@emutex.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/spi/spi.c')
-rw-r--r--drivers/spi/spi.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 656dd3e3220c..ad7f638a0a5b 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1722,13 +1722,15 @@ static acpi_status acpi_register_spi_device(struct spi_master *master,
return AE_OK;
}
+ 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;
- strlcpy(spi->modalias, acpi_device_hid(adev), sizeof(spi->modalias));
if (spi_add_device(spi)) {
adev->power.flags.ignore_parent = false;
dev_err(&master->dev, "failed to add SPI device %s from ACPI\n",