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authorJeffy Chen <jeffy.chen@rock-chips.com>2017-08-07 15:40:19 +0300
committerMark Brown <broonie@kernel.org>2017-08-07 18:44:10 +0300
commit6a06e895b262621a81b3b08126b4bc5e1b8eef05 (patch)
tree37dbfd044624568eb6c630a5cfb0d33d04841005 /drivers/spi/spi-rockchip.c
parent43de979ddc099c57858b243619c66e2f663a2f97 (diff)
downloadlinux-6a06e895b262621a81b3b08126b4bc5e1b8eef05.tar.xz
spi: rockchip: Fix clock handling in remove
We are assuming clocks enabled when calling rockchip_spi_remove, which is not always true. Those clocks might already been disabled by the runtime PM at that time. Call pm_runtime_get_sync before trying to disable clocks to avoid that. Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-rockchip.c')
-rw-r--r--drivers/spi/spi-rockchip.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 5497650992c7..a75fd9bb76de 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -816,11 +816,15 @@ static int rockchip_spi_remove(struct platform_device *pdev)
struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
struct rockchip_spi *rs = spi_master_get_devdata(master);
- pm_runtime_disable(&pdev->dev);
+ pm_runtime_get_sync(&pdev->dev);
clk_disable_unprepare(rs->spiclk);
clk_disable_unprepare(rs->apb_pclk);
+ pm_runtime_put_noidle(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
+ pm_runtime_set_suspended(&pdev->dev);
+
if (rs->dma_tx.ch)
dma_release_channel(rs->dma_tx.ch);
if (rs->dma_rx.ch)