summaryrefslogtreecommitdiffstats
path: root/drivers/dma/stm32-dma.c
diff options
context:
space:
mode:
authorEtienne Carriere <etienne.carriere@st.com>2020-01-29 16:36:22 +0100
committerVinod Koul <vkoul@kernel.org>2020-02-25 11:15:04 +0530
commit8cf1e0fc50fcc25021567bb2755580504c57c83a (patch)
tree90f6eff549d5b2bfd1b590fd0d86fa9d5ea89e5c /drivers/dma/stm32-dma.c
parent05f8740a0e6fcd97fe462c7012dff2eed821b529 (diff)
downloadlinux-8cf1e0fc50fcc25021567bb2755580504c57c83a.tar.bz2
dmaengine: stm32-dma: use reset controller only at probe time
Remove reset controller reference from device instance since it is used only at probe time. Signed-off-by: Etienne Carriere <etienne.carriere@st.com> Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com> Link: https://lore.kernel.org/r/20200129153628.29329-3-amelie.delaunay@st.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/stm32-dma.c')
-rw-r--r--drivers/dma/stm32-dma.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/dma/stm32-dma.c b/drivers/dma/stm32-dma.c
index 136deabd1aa3..e31414796ec4 100644
--- a/drivers/dma/stm32-dma.c
+++ b/drivers/dma/stm32-dma.c
@@ -207,7 +207,6 @@ struct stm32_dma_device {
struct dma_device ddev;
void __iomem *base;
struct clk *clk;
- struct reset_control *rst;
bool mem2mem;
struct stm32_dma_chan chan[STM32_DMA_MAX_CHANNELS];
};
@@ -1275,6 +1274,7 @@ static int stm32_dma_probe(struct platform_device *pdev)
struct dma_device *dd;
const struct of_device_id *match;
struct resource *res;
+ struct reset_control *rst;
int i, ret;
match = of_match_device(stm32_dma_of_match, &pdev->dev);
@@ -1309,11 +1309,11 @@ static int stm32_dma_probe(struct platform_device *pdev)
dmadev->mem2mem = of_property_read_bool(pdev->dev.of_node,
"st,mem2mem");
- dmadev->rst = devm_reset_control_get(&pdev->dev, NULL);
- if (!IS_ERR(dmadev->rst)) {
- reset_control_assert(dmadev->rst);
+ rst = devm_reset_control_get(&pdev->dev, NULL);
+ if (!IS_ERR(rst)) {
+ reset_control_assert(rst);
udelay(2);
- reset_control_deassert(dmadev->rst);
+ reset_control_deassert(rst);
}
dma_cap_set(DMA_SLAVE, dd->cap_mask);