linux_dsm_epyc7002/drivers/ssb
Andrey Skvortsov 5580373fb2 SSB / B44: fix WOL for BCM4401
Wake On Lan was not working on laptop DELL Vostro 1500.
If WOL was turned on, BCM4401 was powered up in suspend mode. LEDs blinked.
But the laptop could not be woken up with the Magic Packet. The reason for
that was that PCIE was not enabled as a system wakeup source and
therefore the host PCI bridge was not powered up in suspend mode.
PCIE was not enabled in suspend by PM because no child devices were
registered as wakeup source during suspend process.
On laptop BCM4401 is connected through the SSB bus, that is connected to the
PCI-Express bus. SSB and B44 did not use standard PM wakeup functions
and did not forward wakeup settings to their parents.
To fix that B44 driver enables PM wakeup and registers new wakeup source
using device_set_wakeup_enable(). Wakeup is automatically reported to the parent SSB
bus via power.wakeup_path. SSB bus enables wakeup for the parent PCI bridge, if there is any
child devices with enabled wakeup functionality. All other steps are
done by PM core code.

Signed-off-by: Andrey Skvortsov <Andrej.Skvortzov@gmail.com>
Signed-off-by: Michael Buesch <m@bues.ch>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-12-04 11:32:46 -05:00
..
b43_pci_bridge.c ssb: add PCI ID 0x4351 2014-08-25 15:39:22 -04:00
driver_chipcommon_pmu.c ssb: implement ssb spuravoid for chipid BCM43222 2013-04-26 08:42:22 -04:00
driver_chipcommon_sflash.c ssb: fix sparse warnings in driver_chipcommon_sflash.c 2014-01-03 15:37:01 -05:00
driver_chipcommon.c ssb: Convert ssb_printk to ssb_<level> 2013-03-06 16:24:23 -05:00
driver_extif.c
driver_gige.c
driver_gpio.c driver:gpio remove all usage of gpio_remove retval in driver 2014-09-18 11:03:10 -07:00
driver_mipscore.c - Lots of cleanups from Artem, including deletion of some obsolete drivers 2013-05-09 10:15:46 -07:00
driver_pcicore.c ssb: Convert ssb_printk to ssb_<level> 2013-03-06 16:24:23 -05:00
embedded.c ssb: Convert ssb_printk to ssb_<level> 2013-03-06 16:24:23 -05:00
Kconfig ssb: gpio: add own IRQ domain 2014-01-24 22:39:54 +01:00
main.c ssb: gpio: add own IRQ domain 2014-01-24 22:39:54 +01:00
Makefile
pci.c ssb: extract power info from SPROM revs 4 and 5 2014-07-18 13:45:24 -04:00
pcihost_wrapper.c SSB / B44: fix WOL for BCM4401 2014-12-04 11:32:46 -05:00
pcmcia.c ssb: Convert ssb_printk to ssb_<level> 2013-03-06 16:24:23 -05:00
scan.c ssb: Convert ssb_printk to ssb_<level> 2013-03-06 16:24:23 -05:00
sdio.c
sprom.c ssb: sprom: replace strict_strtoul() with kstrtoul() 2013-06-03 00:39:46 -07:00
ssb_private.h ssb: register serial flash as platform device 2013-06-18 14:46:46 -04:00