Messages in this thread | | | From | Srinivas Pandruvada <> | Subject | [RFC PATCH v2 0/2] ata: ahci: Enable DEVSLP by default on SLP_S0 support | Date | Thu, 12 Jul 2018 15:27:10 -0700 |
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One of the requirement for modern x86 system to enter lowest power mode (SLP_S0) is SATA IP block to be off. This is true even during when platform is suspended to idle and not only in opportunistic (runtime) suspend. This series is to enable DEVSLP by default.
v2 - As suggested by Hans, it is possible to have ASP with DEVSLP, so add a new state. - Removed usage of mem_sleep_current, instead just rely on low power idle flag. Don't feel good to EXPORT from core suspend code. - Depending host policy to decide if we enable DEVSLP by default.
Srinivas (1): ata: ahci: Enable DEVSLP by default on x86 with SLP_S0
Srinivas Pandruvada (1): ata: ahci: Support state with min power but Partial low power state
drivers/ata/ahci.c | 15 +++++++++++++++ drivers/ata/libahci.c | 6 +++++- drivers/ata/libata-core.c | 1 + drivers/ata/libata-scsi.c | 1 + include/linux/libata.h | 3 ++- 5 files changed, 24 insertions(+), 2 deletions(-)
-- 2.17.1
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