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| author | Linus Walleij <linus.walleij@linaro.org> | 2017-01-30 16:39:20 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-01-30 16:39:20 +0300 |
| commit | 7f36f5d11cda050b118f76d774151427a18d15ef (patch) | |
| tree | 9d4fa3b830785b767525a5e6a065fe4297cd8112 /drivers/dma/pl330.c | |
| parent | 2b24efa8e5c5042b0f126c09622b3e9e3c86a4fa (diff) | |
| parent | 566cf877a1fcb6d6dc0126b076aad062054c2637 (diff) | |
| download | linux-7f36f5d11cda050b118f76d774151427a18d15ef.tar.xz | |
Merge tag 'v4.10-rc6' into devel
Linux 4.10-rc6
Resolved conflicts in:
drivers/pinctrl/pinctrl-amd.c
drivers/pinctrl/samsung/pinctrl-exynos.c
Diffstat (limited to 'drivers/dma/pl330.c')
| -rw-r--r-- | drivers/dma/pl330.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 87fd01539fcb..740bbb942594 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -448,6 +448,9 @@ struct dma_pl330_chan { /* for cyclic capability */ bool cyclic; + + /* for runtime pm tracking */ + bool active; }; struct pl330_dmac { @@ -2033,6 +2036,7 @@ static void pl330_tasklet(unsigned long data) _stop(pch->thread); spin_unlock(&pch->thread->dmac->lock); power_down = true; + pch->active = false; } else { /* Make sure the PL330 Channel thread is active */ spin_lock(&pch->thread->dmac->lock); @@ -2052,6 +2056,7 @@ static void pl330_tasklet(unsigned long data) desc->status = PREP; list_move_tail(&desc->node, &pch->work_list); if (power_down) { + pch->active = true; spin_lock(&pch->thread->dmac->lock); _start(pch->thread); spin_unlock(&pch->thread->dmac->lock); @@ -2166,6 +2171,7 @@ static int pl330_terminate_all(struct dma_chan *chan) unsigned long flags; struct pl330_dmac *pl330 = pch->dmac; LIST_HEAD(list); + bool power_down = false; pm_runtime_get_sync(pl330->ddma.dev); spin_lock_irqsave(&pch->lock, flags); @@ -2176,6 +2182,8 @@ static int pl330_terminate_all(struct dma_chan *chan) pch->thread->req[0].desc = NULL; pch->thread->req[1].desc = NULL; pch->thread->req_running = -1; + power_down = pch->active; + pch->active = false; /* Mark all desc done */ list_for_each_entry(desc, &pch->submitted_list, node) { @@ -2193,6 +2201,8 @@ static int pl330_terminate_all(struct dma_chan *chan) list_splice_tail_init(&pch->completed_list, &pl330->desc_pool); spin_unlock_irqrestore(&pch->lock, flags); pm_runtime_mark_last_busy(pl330->ddma.dev); + if (power_down) + pm_runtime_put_autosuspend(pl330->ddma.dev); pm_runtime_put_autosuspend(pl330->ddma.dev); return 0; @@ -2357,6 +2367,7 @@ static void pl330_issue_pending(struct dma_chan *chan) * updated on work_list emptiness status. */ WARN_ON(list_empty(&pch->submitted_list)); + pch->active = true; pm_runtime_get_sync(pch->dmac->ddma.dev); } list_splice_tail_init(&pch->submitted_list, &pch->work_list); |