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

dmaengine: stm32-dma: 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/20200129153628.29329-3-amelie.delaunay@st.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Etienne Carriere 2020-01-29 16:36:22 +01:00 committed by Vinod Koul
parent 05f8740a0e
commit 8cf1e0fc50
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-dma.c
View File

@ -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);