Hello,
I sent out a few questions/suggestions earlier, regarding some trouble I was
having in supporting my SoC SATA controller under the libata / ahci_platform
driver:
http://article.gmane.org/gmane.linux.ide/52951/match=unbind+rmmod
I think I have identified a problem in libata's handling of hardware activity
at device removal/exit (relevant to my use-case of unbind or rmmod). This patch series:
(1) Allows ahci_platform to unbind a device from the driver. This is useful for
allowing total power-off of the device, for instance.
(2) Modifies libata-core so that ata_host_stop() is not called as a devres
cleanup function (after all driver-specific functions, including power-off)
The first two patches are relatively harmless and correct, I believe, where the
third patch is more significant and could use good review. I am sending code
because I hear no response to my standalone suggestions :) Please see my
previous email (URL above) and/or patch 3/3 for a more detailed description.
Thanks,
Brian
Brian Norris (3):
ahci_platform: enable hotplug unbinding
ahci_platform: convert to module_platform_driver
libata: don't perform HW activity in devres
drivers/ata/ahci_platform.c | 16 +++-------------
drivers/ata/libata-core.c | 18 +++---------------
2 files changed, 6 insertions(+), 28 deletions(-)
--
1.7.11.3
