Hi, This series fixes runtime PM for omap-ssi, so that the OMAP SoC can idle correctly. After applying the series, the SSI module correctly goes into idle if phonet0 interface is not configured or if it's used by ofono (*). Apart from me Pavel Machek did some testing of my devel branch [0] and reported, that he was able to get the phone into full idle. Note: I did my testing with kernel flashing over USB, so idle is broken. But I found the bit in cm_idlest1_core, that stands for SSI blocking status: 0x00800000 (documented as "reserved" in the public TRM). (*) "ifconfig phonet0 up" will result in blocking ssi module until modem setup has finished (data communication via phonet0 device), since it enables ssi wakelines. [0] https://git.kernel.org/cgit/linux/kernel/git/sre/linux-hsi.git/log/?h=runtime-pm-fixes -- Sebastian Sebastian Reichel (19): HSI: omap_ssi_port: remove useless newline HSI: omap_ssi: do not reset module HSI: ssi_protocol: avoid ssi_waketest call with held spinlock HSI: ssi_protocol: replace spin_lock with spin_lock_bh HSI: ssi_protocol: fix ssip_xmit invocation HSI: omap_ssi: convert cawake irq handler to thread HSI: omap_ssi_port: replace wkin_cken with atomic bitmap operations HSI: core: switch port event notifier from atomic to blocking HSI: omap_ssi_port: prepare start_tx/stop_tx for blocking pm_runtime calls HSI: omap_ssi_core: use pm_runtime_put instead of pm_runtime_put_sync HSI: omap_ssi_core: remove pm_runtime_get_sync call from tasklet HSI: omap_ssi_port: switch to threaded pio irq HSI: omap_ssi_port: avoid pm_runtime_get_sync in ssi_start_dma and ssi_start_pio HSI: omap_ssi_port: avoid calling runtime_pm_*_sync inside spinlock HSI: omap_ssi_port: replace pm_runtime_put_sync with non-sync variant HSI: omap_ssi_port: ensure clocks are kept enabled during transfer HSI: omap_ssi: call msg->complete() from process context HSI: omap_ssi_port: use rpm autosuspend API HSI: omap_ssi: drop pm_runtime_irq_safe drivers/hsi/clients/ssi_protocol.c | 110 +++++++++------- drivers/hsi/controllers/omap_ssi.h | 18 +-- drivers/hsi/controllers/omap_ssi_core.c | 46 +++---- drivers/hsi/controllers/omap_ssi_port.c | 226 ++++++++++++++++++-------------- drivers/hsi/hsi_core.c | 8 +- include/linux/hsi/hsi.h | 2 +- 6 files changed, 229 insertions(+), 181 deletions(-) -- 2.8.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html