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authorMark Brown <broonie@kernel.org>2018-10-21 17:00:17 +0100
committerMark Brown <broonie@kernel.org>2018-10-21 17:00:17 +0100
commit7b9734dbc5b042bb8d8d930797f346b280057c4e (patch)
treec4b5f1c1600e1a5f6fc0b17a56a89682f127e6e2 /include
parent4b51c747e4a52175e63d125db8365b38b06f0343 (diff)
parent5f143af7501e7c435c56e181a655493edaa92509 (diff)
Merge remote-tracking branch 'spi/topic/of' into spi-next
Diffstat (limited to 'include')
-rw-r--r--include/linux/spi/spi.h17
1 files changed, 16 insertions, 1 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 3de9958ca28b..6be77fa5ab90 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -1272,7 +1272,6 @@ spi_register_board_info(struct spi_board_info const *info, unsigned n)
{ return 0; }
#endif
-
/* If you're hotplugging an adapter with devices (parport, usb, etc)
* use spi_new_device() to describe each device. You can also call
* spi_unregister_device() to start making that device vanish, but
@@ -1304,6 +1303,22 @@ spi_transfer_is_last(struct spi_controller *ctlr, struct spi_transfer *xfer)
return list_is_last(&xfer->transfer_list, &ctlr->cur_msg->transfers);
}
+/* OF support code */
+#if IS_ENABLED(CONFIG_OF)
+
+/* must call put_device() when done with returned spi_device device */
+extern struct spi_device *
+of_find_spi_device_by_node(struct device_node *node);
+
+#else
+
+static inline struct spi_device *
+of_find_spi_device_by_node(struct device_node *node)
+{
+ return NULL;
+}
+
+#endif /* IS_ENABLED(CONFIG_OF) */
/* Compatibility layer */
#define spi_master spi_controller