ABI: sysfs-bus-pci: add a alternative What fields
authorMauro Carvalho Chehab <mchehab+huawei@kernel.org>
Mon, 27 Sep 2021 13:59:43 +0000 (15:59 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 28 Sep 2021 10:48:15 +0000 (12:48 +0200)
There are some PCI ABI that aren't shown under:

/sys/bus/pci/drivers/.../

Because they're registered with a different class. That's
the case of, for instance:

/sys/bus/i2c/drivers/CHT Whiskey Cove PMIC/unbind

This one is not present under /sys/bus/pci:

$ find /sys/bus/pci -name 'CHT Whiskey Cove PMIC'

Although clearly this is provided by a PCI driver:

/sys/devices/pci0000:00/0000:00:02.0/i2c-4/subsystem/drivers/CHT Whiskey Cove PMIC/unbind

So, add an altertate What location in order to match bind/unbind
to such devices.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/15ba8c07f1b0fd7359106920c8e34a7b9af7aea6.1632750608.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Documentation/ABI/testing/sysfs-bus-pci

index 1eeac7f596722698e55e1da6450ac3437d0571eb..16afe3f59cbd832f76d831e9358a85b7c1e25ff5 100644 (file)
@@ -1,4 +1,5 @@
 What:          /sys/bus/pci/drivers/.../bind
+What:          /sys/devices/pciX/.../bind
 Date:          December 2003
 Contact:       linux-pci@vger.kernel.org
 Description:
@@ -14,6 +15,7 @@ Description:
                (Note: kernels before 2.6.28 may require echo -n).
 
 What:          /sys/bus/pci/drivers/.../unbind
+What:          /sys/devices/pciX/.../unbind
 Date:          December 2003
 Contact:       linux-pci@vger.kernel.org
 Description:
@@ -29,6 +31,7 @@ Description:
                (Note: kernels before 2.6.28 may require echo -n).
 
 What:          /sys/bus/pci/drivers/.../new_id
+What:          /sys/devices/pciX/.../new_id
 Date:          December 2003
 Contact:       linux-pci@vger.kernel.org
 Description:
@@ -47,6 +50,7 @@ Description:
                  # echo "8086 10f5" > /sys/bus/pci/drivers/foo/new_id
 
 What:          /sys/bus/pci/drivers/.../remove_id
+What:          /sys/devices/pciX/.../remove_id
 Date:          February 2009
 Contact:       Chris Wright <chrisw@sous-sol.org>
 Description: