dmaengine: stm32-dma: use reset controller only at probe time (8cf1e0fc) · Commits · 戴 / test

drivers/dma/stm32-dma.c

+5 −5

Original line number	Diff line number	Diff line
		@@ -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);