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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-07-27 18:03:58 +0300
committerLee Jones <lee.jones@linaro.org>2015-07-28 08:50:42 +0100
commitddef08dd00f5548f943422c86e4ffe67dd040b6c (patch)
tree359d5f96695c2ecd7442df32ba4083dc4db24e5b /lib/klist.c
parent712e960f0ee9337f3473ba3de2bcfc7e87b7c5a4 (diff)
Driver core: wakeup the parent device before trying probe
If the parent is still suspended when driver probe is attempted, the result may be failure. For example, if the parent is a PCI MFD device that has been suspended when we try to probe our device, any register reads will return 0xffffffff. To fix the problem, making sure the parent is always awake before attempting driver probe. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'lib/klist.c')
0 files changed, 0 insertions, 0 deletions