dma/stm32/stm32-mdma.c

8  * Driver for STM32 MDMA controller
35 #define STM32_MDMA_GISR0		0x0000 /* MDMA Int Status Reg 1 */
37 /* MDMA Channel x interrupt/status register */
46 /* MDMA Channel x interrupt flag clear register */
59 /* MDMA Channel x error status register */
68 /* MDMA Channel x control register */
89 /* MDMA Channel x transfer configuration register */
128 /* MDMA Channel x block number of data register */
139 /* MDMA Channel x source address register */
142 /* MDMA Channel x destination address register */
145 /* MDMA Channel x block repeat address update register */
152 /* MDMA Channel x link address register */
155 /* MDMA Channel x trigger and bus selection register */
162 /* MDMA Channel x mask address register */
165 /* MDMA Channel x mask data register */
201 	bool m2m_hw; /* True when MDMA is triggered by STM32 DMA */
231 	u32 request;	/* STM32 DMA channel stream id, triggering MDMA */
1304 	/* Check if user is requesting STM32 DMA to trigger MDMA */  in stm32_mdma_slave_config()
1585 	{ .compatible = "st,stm32h7-mdma", },
1608 		dev_warn(&pdev->dev, "MDMA defaulting on %i channels\n",  in stm32_mdma_probe()
1616 		dev_warn(&pdev->dev, "MDMA defaulting on %i request lines\n",  in stm32_mdma_probe()
1728 			"STM32 MDMA DMA OF registration failed %d\n", ret);  in stm32_mdma_probe()
1738 	dev_info(&pdev->dev, "STM32 MDMA driver registered\n");  in stm32_mdma_probe()
1814 		.name = "stm32-mdma",
1827 MODULE_DESCRIPTION("Driver for STM32 MDMA controller");