+++ /dev/null
-From 0eda4c5c7704363f665f4ccf0327349faad245a4 Mon Sep 17 00:00:00 2001
-From: Caleb Connolly <caleb.connolly@linaro.org>
-Date: Fri, 29 Apr 2022 23:08:56 +0100
-Subject: [PATCH] spmi: add a helper to look up an SPMI device from a device
- node
-
-The helper function spmi_device_from_of() takes a device node and
-returns the SPMI device associated with it.
-This is like of_find_device_by_node but for SPMI devices.
-
-Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
-Acked-by: Stephen Boyd <sboyd@kernel.org>
-Link: https://lore.kernel.org/r/20220429220904.137297-2-caleb.connolly@linaro.org
-Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
----
- drivers/spmi/spmi.c | 17 +++++++++++++++++
- include/linux/spmi.h | 3 +++
- 2 files changed, 20 insertions(+)
-
---- a/drivers/spmi/spmi.c
-+++ b/drivers/spmi/spmi.c
-@@ -388,6 +388,23 @@ static struct bus_type spmi_bus_type = {
- };
-
- /**
-+ * spmi_device_from_of() - get the associated SPMI device from a device node
-+ *
-+ * @np: device node
-+ *
-+ * Returns the struct spmi_device associated with a device node or NULL.
-+ */
-+struct spmi_device *spmi_device_from_of(struct device_node *np)
-+{
-+ struct device *dev = bus_find_device_by_of_node(&spmi_bus_type, np);
-+
-+ if (dev)
-+ return to_spmi_device(dev);
-+ return NULL;
-+}
-+EXPORT_SYMBOL_GPL(spmi_device_from_of);
-+
-+/**
- * spmi_controller_alloc() - Allocate a new SPMI device
- * @ctrl: associated controller
- *
---- a/include/linux/spmi.h
-+++ b/include/linux/spmi.h
-@@ -164,6 +164,9 @@ static inline void spmi_driver_unregiste
- module_driver(__spmi_driver, spmi_driver_register, \
- spmi_driver_unregister)
-
-+struct device_node;
-+
-+struct spmi_device *spmi_device_from_of(struct device_node *np);
- int spmi_register_read(struct spmi_device *sdev, u8 addr, u8 *buf);
- int spmi_ext_register_read(struct spmi_device *sdev, u8 addr, u8 *buf,
- size_t len);