This is a note to let you know that I've just added the patch titled
i2c: i801: Use a different adapter-name for IDF adapters
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
i2c-i801-use-a-different-adapter-name-for-idf-adapte.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 8ff10648ecba0ac334681d06a28e85ba5803a3ce
Author: Hans de Goede <hdegoede@xxxxxxxxxx>
Date: Mon Aug 12 22:39:48 2024 +0200
i2c: i801: Use a different adapter-name for IDF adapters
[ Upstream commit 43457ada98c824f310adb7bd96bd5f2fcd9a3279 ]
On chipsets with a second 'Integrated Device Function' SMBus controller use
a different adapter-name for the second IDF adapter.
This allows platform glue code which is looking for the primary i801
adapter to manually instantiate i2c_clients on to differentiate
between the 2.
This allows such code to find the primary i801 adapter by name, without
needing to duplicate the PCI-ids to feature-flags mapping from i2c-i801.c.
Reviewed-by: Pali Rohár <pali@xxxxxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Acked-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andi Shyti <andi.shyti@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 758bbb13b8be3..e983ad07c4951 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -1851,8 +1851,15 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
i801_add_tco(priv);
+ /*
+ * adapter.name is used by platform code to find the main I801 adapter
+ * to instantiante i2c_clients, do not change.
+ */
snprintf(priv->adapter.name, sizeof(priv->adapter.name),
- "SMBus I801 adapter at %04lx", priv->smba);
+ "SMBus %s adapter at %04lx",
+ (priv->features & FEATURE_IDF) ? "I801 IDF" : "I801",
+ priv->smba);
+
err = i2c_add_adapter(&priv->adapter);
if (err) {
platform_device_unregister(priv->tco_pdev);
