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dmaengine: zynqmp_dma: use pm_runtime_resume_and_get() instead of pm_runtime_get_sync()
author
Radhey Shyam Pandey
<radhey.shyam.pandey@xilinx.com>
Tue, 10 May 2022 07:12:42 +0000
(12:42 +0530)
committer
Vinod Koul
<vkoul@kernel.org>
Mon, 16 May 2022 12:51:47 +0000
(18:21 +0530)
pm_runtime_resume_and_get() automatically handle dev->power.usage_count
decrement on errors, so prefer using it and also implement it's error
handling.
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Link:
https://lore.kernel.org/r/1652166762-18317-4-git-send-email-radhey.shyam.pandey@xilinx.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
drivers/dma/xilinx/zynqmp_dma.c
patch
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diff --git
a/drivers/dma/xilinx/zynqmp_dma.c
b/drivers/dma/xilinx/zynqmp_dma.c
index
915dbe6
..
dc299ab
100644
(file)
--- a/
drivers/dma/xilinx/zynqmp_dma.c
+++ b/
drivers/dma/xilinx/zynqmp_dma.c
@@
-1078,7
+1078,11
@@
static int zynqmp_dma_probe(struct platform_device *pdev)
pm_runtime_set_autosuspend_delay(zdev->dev, ZDMA_PM_TIMEOUT);
pm_runtime_use_autosuspend(zdev->dev);
pm_runtime_enable(zdev->dev);
- pm_runtime_get_sync(zdev->dev);
+ ret = pm_runtime_resume_and_get(zdev->dev);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "device wakeup failed.\n");
+ pm_runtime_disable(zdev->dev);
+ }
if (!pm_runtime_enabled(zdev->dev)) {
ret = zynqmp_dma_runtime_resume(zdev->dev);
if (ret)