https://github.com/torvalds/linux
Revision 8fc24426f15d967d585af7062b7be3c46bbce571 authored by Takashi Iwai on 04 April 2013, 13:35:24 UTC, committed by Takashi Iwai on 04 April 2013, 13:35:39 UTC
This reverts commit 6ab317419c62850a71e2adfd1573e5ee87d8774f. The commit [6ab317419c: ALSA: hda - Allow power_save_controller option override DCAPS] changed the behavior of power_save_controller so that it can override the driver capability. This assumed that this option is rarely changed dynamically unlike power_save option. Too naive. It turned out that the user-space power-management tool tries to set power_save_controller option to 1 together with power_save option without knowing what's actually doing. This enabled forcibly the runtime PM of the controller, which is known to be broken om many chips thus disabled as default. So, the only sane fix is to revert this commit again. It was intended to ease debugging/testing for runtime PM enablement, but obviously we need another way for it. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=56171 Reported-and-tested-by: Nikita Tsukanov <keks9n@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
1 parent aeb3a97
Tip revision: 8fc24426f15d967d585af7062b7be3c46bbce571 authored by Takashi Iwai on 04 April 2013, 13:35:24 UTC
Revert "ALSA: hda - Allow power_save_controller option override DCAPS"
Revert "ALSA: hda - Allow power_save_controller option override DCAPS"
Tip revision: 8fc2442
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| arch | ||
| block | ||
| crypto | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .gitignore | -rw-r--r-- | 1.1 KB |
| .mailmap | -rw-r--r-- | 4.4 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 93.0 KB |
| Kbuild | -rw-r--r-- | 2.5 KB |
| Kconfig | -rw-r--r-- | 252 bytes |
| MAINTAINERS | -rw-r--r-- | 243.8 KB |
| Makefile | -rw-r--r-- | 47.0 KB |
| README | -rw-r--r-- | 18.3 KB |
| REPORTING-BUGS | -rw-r--r-- | 3.3 KB |
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