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| author | Jared Kangas <jkangas@redhat.com> | 2026-01-13 11:46:50 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-02-26 14:59:35 -0800 |
| commit | bda244871179543dd3be7d093236cb33b2fb1765 (patch) | |
| tree | a0e0e7159dd881420c51443b1490215a9afdff74 /drivers | |
| parent | 0832e88bc69f7ee2440b15d3d7d87070c26e31bb (diff) | |
| download | linux-bda244871179543dd3be7d093236cb33b2fb1765.tar.gz linux-bda244871179543dd3be7d093236cb33b2fb1765.tar.bz2 linux-bda244871179543dd3be7d093236cb33b2fb1765.zip | |
dmaengine: fsl-edma: don't explicitly disable clocks in .remove()
[ Upstream commit 666c53e94c1d0bf0bdf14c49505ece9ddbe725bc ]
The clocks in fsl_edma_engine::muxclk are allocated and enabled with
devm_clk_get_enabled(), which automatically cleans these resources up,
but these clocks are also manually disabled in fsl_edma_remove(). This
causes warnings on driver removal for each clock:
edma_module already disabled
WARNING: CPU: 0 PID: 418 at drivers/clk/clk.c:1200 clk_core_disable+0x198/0x1c8
[...]
Call trace:
clk_core_disable+0x198/0x1c8 (P)
clk_disable+0x34/0x58
fsl_edma_remove+0x74/0xe8 [fsl_edma]
[...]
---[ end trace 0000000000000000 ]---
edma_module already unprepared
WARNING: CPU: 0 PID: 418 at drivers/clk/clk.c:1059 clk_core_unprepare+0x1f8/0x220
[...]
Call trace:
clk_core_unprepare+0x1f8/0x220 (P)
clk_unprepare+0x34/0x58
fsl_edma_remove+0x7c/0xe8 [fsl_edma]
[...]
---[ end trace 0000000000000000 ]---
Fix these warnings by removing the unnecessary fsl_disable_clocks() call
in fsl_edma_remove().
Fixes: a9903de3aa16 ("dmaengine: fsl-edma: refactor using devm_clk_get_enabled")
Signed-off-by: Jared Kangas <jkangas@redhat.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260113-fsl-edma-clock-removal-v1-1-2025b49e7bcc@redhat.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/dma/fsl-edma-main.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c index 97583c7d51a2..093185768ad8 100644 --- a/drivers/dma/fsl-edma-main.c +++ b/drivers/dma/fsl-edma-main.c @@ -915,7 +915,6 @@ static void fsl_edma_remove(struct platform_device *pdev) of_dma_controller_free(np); dma_async_device_unregister(&fsl_edma->dma_dev); fsl_edma_cleanup_vchan(&fsl_edma->dma_dev); - fsl_disable_clocks(fsl_edma, fsl_edma->drvdata->dmamuxs); } static int fsl_edma_suspend_late(struct device *dev) |