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authorStefan Binding <sbinding@opensource.cirrus.com>2022-01-21 17:24:24 +0000
committerMark Brown <broonie@kernel.org>2022-02-01 17:38:46 +0000
commit000bee0ed70af79e610444096fb453430220960f (patch)
tree6884347260c04f07db2881cd1fb524043171f46f /include/linux/spi
parente3dc1399506f894110667ee5c66a6a70f06f3348 (diff)
spi: Create helper API to lookup ACPI info for spi device
This can then be used to find a spi resource inside an ACPI node, and allocate a spi device. Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20220121172431.6876-3-sbinding@opensource.cirrus.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/linux/spi')
-rw-r--r--include/linux/spi/spi.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 0346a3ff27fd..d159cef12f1a 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -16,6 +16,7 @@
#include <linux/gpio/consumer.h>
#include <uapi/linux/spi/spi.h>
+#include <linux/acpi.h>
struct dma_chan;
struct software_node;
@@ -759,6 +760,11 @@ extern int devm_spi_register_controller(struct device *dev,
struct spi_controller *ctlr);
extern void spi_unregister_controller(struct spi_controller *ctlr);
+#if IS_ENABLED(CONFIG_ACPI)
+extern struct spi_device *acpi_spi_device_alloc(struct spi_controller *ctlr,
+ struct acpi_device *adev);
+#endif
+
/*
* SPI resource management while processing a SPI message
*/