[RFC PATCH 0/8] PM / Domains: Add support for removing PM domains
From: Ulf Hansson <hidden>
Date: 2016-06-15 14:46:38
Also in:
linux-pm, linux-tegra
On 4 March 2016 at 12:23, Jon Hunter [off-list ref] wrote:
In order to safely remove PM domains there are a few changes that need to be made to ensure that no one is holding an external reference to a PM domain after it has been removed. One solution, implemented here, solves this by eliminating external references to PM domain. Another alternative would be to employ some reference counting for the PM domains, however, I did not see a good reason for allowing external references in the first place (as always there could be something that I have over-looked!). Jon Hunter (8): PM / Domains: Add new helper functions for device-tree ARM: EXYNOS: Remove calls to of_genpd_get_from_provider() staging: board: Remove calls to of_genpd_get_from_provider() PM / Domains: Don't expose generic_pm_domain structure PM / Domains: Verify the PM domain is present when adding a provider PM / Domains: Remove a provider by referencing the data pointer PM / Domains: Prepare for adding support to remove PM domains PM / Domains: Add support for removing PM domains arch/arm/mach-exynos/pm_domains.c | 23 +-- drivers/base/power/domain.c | 324 +++++++++++++++++++++++++++++++++++--- drivers/staging/board/board.c | 9 +- include/linux/pm_domain.h | 55 ++++--- 4 files changed, 348 insertions(+), 63 deletions(-) -- 2.1.4
Apologize for the long delay! I have looked through this now and I really like this! There were a few comments, but those should be easily taken care of. So please go ahead and re-spin a new version! There are a few outstanding genpd patches which I have posted a while ago but which isn't yet queued for 4.8. I don't know whether those will conflict with this series (if they get merged prior to this), but I guess it's better if you anyway base you series on Rafael's latest changes instead of on top of mine... Kind regards Uffe