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| author | Stefan Binding <sbinding@opensource.cirrus.com> | 2022-01-21 17:24:26 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-02-01 17:38:48 +0000 |
| commit | e612af7acef2459f1afd885f4107748995a05963 (patch) | |
| tree | f7383247760b2b99705a15725a9cf590d9fd31d2 /include/linux/spi/spi.h | |
| parent | 87e59b36e5e26122efd55d77adb9fac827987db0 (diff) | |
| download | lwn-e612af7acef2459f1afd885f4107748995a05963.tar.gz lwn-e612af7acef2459f1afd885f4107748995a05963.zip | |
spi: Add API to count spi acpi resources
Some ACPI nodes may have more than one Spi Resource.
To be able to handle these case, its necessary to have
a way of counting these resources.
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220121172431.6876-5-sbinding@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/spi/spi.h')
| -rw-r--r-- | include/linux/spi/spi.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index e5bbb9cbd3d7..394b4241d989 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -764,6 +764,7 @@ extern void spi_unregister_controller(struct spi_controller *ctlr); extern struct spi_device *acpi_spi_device_alloc(struct spi_controller *ctlr, struct acpi_device *adev, int index); +int acpi_spi_count_resources(struct acpi_device *adev); #endif /* |