diff options
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 8d85ddc46011..18cc625d887f 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -357,6 +357,19 @@ struct spi_device *spi_alloc_device(struct spi_master *master) } EXPORT_SYMBOL_GPL(spi_alloc_device); +static void spi_dev_set_name(struct spi_device *spi) +{ + struct acpi_device *adev = ACPI_COMPANION(&spi->dev); + + if (adev) { + dev_set_name(&spi->dev, "spi-%s", acpi_dev_name(adev)); + return; + } + + dev_set_name(&spi->dev, "%s.%u", dev_name(&spi->master->dev), + spi->chip_select); +} + /** * spi_add_device - Add spi_device allocated with spi_alloc_device * @spi: spi_device to register @@ -383,9 +396,7 @@ int spi_add_device(struct spi_device *spi) } /* Set the bus ID string */ - dev_set_name(&spi->dev, "%s.%u", dev_name(&spi->master->dev), - spi->chip_select); - + spi_dev_set_name(spi); /* We need to make sure there's no other device with this * chipselect **BEFORE** we call setup(), else we'll trash @@ -1144,7 +1155,7 @@ static acpi_status acpi_spi_add_device(acpi_handle handle, u32 level, return AE_NO_MEMORY; } - ACPI_HANDLE_SET(&spi->dev, handle); + ACPI_COMPANION_SET(&spi->dev, adev); spi->irq = -1; INIT_LIST_HEAD(&resource_list); |