From mboxrd@z Thu Jan 1 00:00:00 1970 From: ulf.hansson@linaro.org (Ulf Hansson) Date: Fri, 4 Mar 2016 13:33:30 +0100 Subject: [RFC PATCH 0/8] PM / Domains: Add support for removing PM domains In-Reply-To: <1457090634-14785-1-git-send-email-jonathanh@nvidia.com> References: <1457090634-14785-1-git-send-email-jonathanh@nvidia.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 4 March 2016 at 12:23, Jon Hunter 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 > Jon, thanks for posting this! My initial impressions is the I like the ideas for where you moves this. I will review it in more details as soon as I can (travelling next week). Kind regards Uffe