iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

dmaengine: stm32-dmamux: use reset controller only at probe time

Browse Source 
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/20200128094158.20361-4-amelie.delaunay@st.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Etienne Carriere 2020-01-28 10:41:57 +01:00 committed by Vinod Koul
parent 57e9f3666a
commit d04d2f620d
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/dma/stm32-dmamux.c
View File

@ -35,7 +35,6 @@ struct stm32_dmamux {
struct stm32_dmamux_data {
struct dma_router dmarouter;
struct clk *clk;
struct reset_control *rst;
void __iomem *iomem;
u32 dma_requests; /* Number of DMA requests connected to DMAMUX */
u32 dmamux_requests; /* Number of DMA requests routed toward DMAs */
@ -182,6 +181,7 @@ static int stm32_dmamux_probe(struct platform_device *pdev)
struct stm32_dmamux_data *stm32_dmamux;
struct resource *res;
void __iomem *iomem;
struct reset_control *rst;
int i, count, ret;
u32 dma_req;
@ -265,11 +265,11 @@ static int stm32_dmamux_probe(struct platform_device *pdev)
return ret;
}
stm32_dmamux->rst = devm_reset_control_get(&pdev->dev, NULL);
if (!IS_ERR(stm32_dmamux->rst)) {
reset_control_assert(stm32_dmamux->rst);
rst = devm_reset_control_get(&pdev->dev, NULL);
if (!IS_ERR(rst)) {
reset_control_assert(rst);
udelay(2);
reset_control_deassert(stm32_dmamux->rst);
reset_control_deassert(rst);
}
stm32_dmamux->iomem = iomem;