[PATCH 1/1][SRU][N/P] i2c: i801: Hide Intel Birch Stream SoC TCO WDT

AceLan Kao acelan.kao at canonical.com
Thu Oct 23 03:16:27 UTC 2025


From: Chiasheng Lee <chiasheng.lee at linux.intel.com>

BugLink: https://bugs.launchpad.net/bugs/2121997

Hide the Intel Birch Stream SoC TCO WDT feature since it was removed.

On platforms with PCH TCO WDT, this redundant device might be rendering
errors like this:

[   28.144542] sysfs: cannot create duplicate filename '/bus/platform/devices/iTCO_wdt'

Fixes: 8c56f9ef25a3 ("i2c: i801: Add support for Intel Birch Stream SoC")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=220320
Signed-off-by: Chiasheng Lee <chiasheng.lee at linux.intel.com>
Cc: <stable at vger.kernel.org> # v6.7+
Reviewed-by: Mika Westerberg <mika.westerberg at linux.intel.com>
Reviewed-by: Jarkko Nikula <jarkko.nikula at linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti at kernel.org>
Link: https://lore.kernel.org/r/20250901125943.916522-1-chiasheng.lee@linux.intel.com
(cherry picked from commit 664596bd98bb251dd417dfd3f9b615b661e1e44a)
Signed-off-by: Chia-Lin Kao (AceLan) <acelan.kao at canonical.com>
---
 drivers/i2c/busses/i2c-i801.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 1661478381317..fbefffd9977d4 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -1045,7 +1045,7 @@ static const struct pci_device_id i801_ids[] = {
 	{ PCI_DEVICE_DATA(INTEL, METEOR_LAKE_P_SMBUS,		FEATURES_ICH5 | FEATURE_TCO_CNL) },
 	{ PCI_DEVICE_DATA(INTEL, METEOR_LAKE_SOC_S_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_CNL) },
 	{ PCI_DEVICE_DATA(INTEL, METEOR_LAKE_PCH_S_SMBUS,	FEATURES_ICH5 | FEATURE_TCO_CNL) },
-	{ PCI_DEVICE_DATA(INTEL, BIRCH_STREAM_SMBUS,		FEATURES_ICH5 | FEATURE_TCO_CNL) },
+	{ PCI_DEVICE_DATA(INTEL, BIRCH_STREAM_SMBUS,		FEATURES_ICH5)			 },
 	{ PCI_DEVICE_DATA(INTEL, ARROW_LAKE_H_SMBUS,		FEATURES_ICH5 | FEATURE_TCO_CNL) },
 	{ PCI_DEVICE_DATA(INTEL, PANTHER_LAKE_H_SMBUS,		FEATURES_ICH5 | FEATURE_TCO_CNL) },
 	{ PCI_DEVICE_DATA(INTEL, PANTHER_LAKE_P_SMBUS,		FEATURES_ICH5 | FEATURE_TCO_CNL) },
-- 
2.43.0




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