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authorVinod Koul <vinod.koul@intel.com>2017-05-04 13:38:10 +0300
committerVinod Koul <vinod.koul@intel.com>2017-05-04 13:38:10 +0300
commit3378e7a49fda9537d48953cd41cf7836c472ba2f (patch)
tree5e3fa26a0f83c91bf5115ad4295f74ac8ae8a056 /drivers
parentdd2b9ff8a9f992b4c85842e8b7c0b6f08f9e7e7c (diff)
parentdc7c733acb04307563da357af6118b12948c3f50 (diff)
downloadlinux-3378e7a49fda9537d48953cd41cf7836c472ba2f.tar.xz
Merge branch 'topic/qcom' into for-linus
Diffstat (limited to 'drivers')
-rw-r--r--drivers/dma/qcom/hidma.c15
-rw-r--r--drivers/dma/qcom/hidma_ll.c6
2 files changed, 21 insertions, 0 deletions
diff --git a/drivers/dma/qcom/hidma.c b/drivers/dma/qcom/hidma.c
index 3c982c96b4b7..5072a7d306d4 100644
--- a/drivers/dma/qcom/hidma.c
+++ b/drivers/dma/qcom/hidma.c
@@ -865,6 +865,20 @@ bailout:
return rc;
}
+static void hidma_shutdown(struct platform_device *pdev)
+{
+ struct hidma_dev *dmadev = platform_get_drvdata(pdev);
+
+ dev_info(dmadev->ddev.dev, "HI-DMA engine shutdown\n");
+
+ pm_runtime_get_sync(dmadev->ddev.dev);
+ if (hidma_ll_disable(dmadev->lldev))
+ dev_warn(dmadev->ddev.dev, "channel did not stop\n");
+ pm_runtime_mark_last_busy(dmadev->ddev.dev);
+ pm_runtime_put_autosuspend(dmadev->ddev.dev);
+
+}
+
static int hidma_remove(struct platform_device *pdev)
{
struct hidma_dev *dmadev = platform_get_drvdata(pdev);
@@ -908,6 +922,7 @@ MODULE_DEVICE_TABLE(of, hidma_match);
static struct platform_driver hidma_driver = {
.probe = hidma_probe,
.remove = hidma_remove,
+ .shutdown = hidma_shutdown,
.driver = {
.name = "hidma",
.of_match_table = hidma_match,
diff --git a/drivers/dma/qcom/hidma_ll.c b/drivers/dma/qcom/hidma_ll.c
index 6645bdf0d151..1530a661518d 100644
--- a/drivers/dma/qcom/hidma_ll.c
+++ b/drivers/dma/qcom/hidma_ll.c
@@ -499,6 +499,9 @@ int hidma_ll_enable(struct hidma_lldev *lldev)
lldev->trch_state = HIDMA_CH_ENABLED;
lldev->evch_state = HIDMA_CH_ENABLED;
+ /* enable irqs */
+ writel(ENABLE_IRQS, lldev->evca + HIDMA_EVCA_IRQ_EN_REG);
+
return 0;
}
@@ -596,6 +599,9 @@ int hidma_ll_disable(struct hidma_lldev *lldev)
lldev->trch_state = HIDMA_CH_SUSPENDED;
lldev->evch_state = HIDMA_CH_SUSPENDED;
+
+ /* disable interrupts */
+ writel(0, lldev->evca + HIDMA_EVCA_IRQ_EN_REG);
return 0;
}