This extension allows mux drivers to instruct i2c_mux_add_adapter to
call i2c_register_spd. First user of this feature will be gpio mux.
Signed-off-by: Heiner Kallweit <hkallweit1@xxxxxxxxx>
---
drivers/i2c/i2c-mux.c | 4 ++++
include/linux/i2c-mux.h | 1 +
2 files changed, 5 insertions(+)
diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c
index 57ff09f18..ada9c764f 100644
--- a/drivers/i2c/i2c-mux.c
+++ b/drivers/i2c/i2c-mux.c
@@ -22,6 +22,7 @@
#include <linux/acpi.h>
#include <linux/i2c.h>
#include <linux/i2c-mux.h>
+#include <linux/i2c-smbus.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
@@ -429,6 +430,9 @@ int i2c_mux_add_adapter(struct i2c_mux_core *muxc,
dev_info(&parent->dev, "Added multiplexed i2c bus %d\n",
i2c_adapter_id(&priv->adap));
+ if (muxc->register_spd)
+ i2c_register_spd(&priv->adap);
+
muxc->adapter[muxc->num_adapters++] = &priv->adap;
return 0;
diff --git a/include/linux/i2c-mux.h b/include/linux/i2c-mux.h
index 98ef73b7c..ec51d9bc4 100644
--- a/include/linux/i2c-mux.h
+++ b/include/linux/i2c-mux.h
@@ -21,6 +21,7 @@ struct i2c_mux_core {
unsigned int mux_locked:1;
unsigned int arbitrator:1;
unsigned int gate:1;
+ unsigned int register_spd:1;
void *priv;
--
2.43.0
