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[5.8,100/255] i2c: core: Dont fail PRP0001 enumeration when no ID table exist

Message ID 20200901151005.506490372@linuxfoundation.org
State Superseded
Headers show
Series None | expand

Commit Message

Greg KH Sept. 1, 2020, 3:09 p.m. UTC 
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

[ Upstream commit e3cb82c6d6f6c27ab754e13ae29bdd6b949982e2 ]

When commit c64ffff7a9d1 ("i2c: core: Allow empty id_table in ACPI case
as well") fixed the enumeration of I²C devices on ACPI enabled platforms
when driver has no ID table, it missed the PRP0001 support.

i2c_device_match() and i2c_acpi_match_device() differently match
driver against given device. Use acpi_driver_match_device(), that is used
in the former, in i2c_device_probe() and don't fail PRP0001 enumeration
when no ID table exist.

Fixes: c64ffff7a9d1 ("i2c: core: Allow empty id_table in ACPI case as well")
BugLink: https://stackoverflow.com/q/63519678/2511795
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/i2c-core-base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 26f03a14a4781..4f09d4c318287 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -354,7 +354,7 @@  static int i2c_device_probe(struct device *dev)
 	 * or ACPI ID table is supplied for the probing device.
 	 */
 	if (!driver->id_table &&
-	    !i2c_acpi_match_device(dev->driver->acpi_match_table, client) &&
+	    !acpi_driver_match_device(dev, dev->driver) &&
 	    !i2c_of_match_device(dev->driver->of_match_table, client)) {
 		status = -ENODEV;
 		goto put_sync_adapter;