From: Axel Haslam <ahaslam+rene...@baylibre.com> Some architectures may have intermediate power levels between on and off.
This patch set adds the ability to declare multiple states for a given generic power domain, the idea is that the deepest state will be entered which does not violate any of the device or sub-domain latency constraints. Changes since v9 *rebased on linux-next Changes since v8 * rebased to linux-pm next Changes since v7: * rebase to 4.3-rc5 * add genpd_init_simple (Lina's suggestion) for platforms that don't have multiple states and don't declare initial latencies. A default OFF state with initial 0 latencies will be used in this case. * Append Mark's patch to add "states" and "timings" to the genpd debugfs Changes since v6: * change int to unsigned int were appropriate. * spelling mistakes, and fix commit message for removal of latencies. Changes since v5: * rebase to 4.1-rc1 * Pass state array as an init argument on pm_genpd_init * declare a default OFF state with no latencies, that will be used if a null state argument is given. * set the deepest state when using sync_poweroff. * create and use name allocation function in the debug area instead of inline. Changes since v4: * move to power_on/off callbacks out of the state array Platforms can check the state_idx to know what state the power on/off corresponds to. * convert states to pointer, Dynamically allocate the states array to save memory on platforms with several power domains. * rename target_state to state_idx and remove init_state. Changes since v3: * remove old power on/off function at the end of the series so that compilation will not break in between. Changes since v2: * remove state argument and macros from save/restore callbacks. * added init_state for platforms to pass the initial state when the genpd is initially off. * convert current genpd users for the structure changes. Changes since v1: * split the changes so that the actual logic that selects the target state is a separate patch. * move the cached logic out of the state function and add it back to default_power_down_ok. * rename default_power_down_ok_state to power_down_ok_for_state Axel Haslam (5): PM / Domains: prepare for multiple states PM / Domains: core changes for multiple states PM / Domains: make governor select deepest state ARM: imx6: pm: declare pm domain latency on power_state struct. PM / Domains: remove old power on/off latencies. Marc Titinger (1): PM / Domains: add debugfs 'states' and 'timings' seq files arch/arm/mach-exynos/pm_domains.c | 2 +- arch/arm/mach-imx/gpc.c | 18 ++- arch/arm/mach-s3c64xx/pm.c | 4 +- arch/arm/mach-shmobile/pm-rmobile.c | 2 +- arch/arm/mach-ux500/pm_domains.c | 2 +- arch/arm/mach-zx/zx296702-pm-domain.c | 2 +- drivers/base/power/domain.c | 258 ++++++++++++++++++++++++++++++++-- drivers/base/power/domain_governor.c | 70 +++++---- drivers/clk/qcom/gdsc.c | 2 +- drivers/clk/shmobile/clk-mstp.c | 2 +- drivers/soc/dove/pmu.c | 2 +- drivers/soc/mediatek/mtk-scpsys.c | 2 +- drivers/soc/rockchip/pm_domains.c | 2 +- include/linux/pm_domain.h | 33 ++++- 14 files changed, 346 insertions(+), 55 deletions(-) -- 2.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
