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author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-04-01 00:21:08 (GMT) |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-04-01 23:55:45 (GMT) |
commit | 29896178cff0cd6e4ee78edc26158cc197a6b504 (patch) | |
tree | f62b1b8dd16fc3cdd32a2fd36aef1a28d2529fcf /drivers | |
parent | 07961ac7c0ee8b546658717034fe692fd12eefa9 (diff) | |
download | linux-fsl-qoriq-29896178cff0cd6e4ee78edc26158cc197a6b504.tar.xz |
ACPI / SPI: Use parent's ACPI_HANDLE() in acpi_register_spi_devices()
The ACPI handle of struct spi_master's dev member should not be
set, because this causes that struct spi_master to be associated
with the ACPI device node corresponding to its parent as the
second "physical_device", which is incorrect (this happens during
the registration of struct spi_master). Consequently,
acpi_register_spi_devices() should use the ACPI handle of the
parent of the struct spi_master it is called for rather than that
struct spi_master's ACPI handle (which should be NULL).
Make that happen and modify the spi-pxa2xx driver, which currently is
the only driver for ACPI-enumerated SPI controller chips, not to set
the ACPI handle for the struct spi_master it creates.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/spi/spi-pxa2xx.c | 1 | ||||
-rw-r--r-- | drivers/spi/spi.c | 2 |
2 files changed, 1 insertions, 2 deletions
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c index 90b27a3..8104138 100644 --- a/drivers/spi/spi-pxa2xx.c +++ b/drivers/spi/spi-pxa2xx.c @@ -1168,7 +1168,6 @@ static int pxa2xx_spi_probe(struct platform_device *pdev) master->dev.parent = &pdev->dev; master->dev.of_node = pdev->dev.of_node; - ACPI_HANDLE_SET(&master->dev, ACPI_HANDLE(&pdev->dev)); /* the spi->mode bits understood by this driver: */ master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LOOP; diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index f996c60..5e073d8 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -984,7 +984,7 @@ static void acpi_register_spi_devices(struct spi_master *master) acpi_status status; acpi_handle handle; - handle = ACPI_HANDLE(&master->dev); + handle = ACPI_HANDLE(master->dev.parent); if (!handle) return; |