linux-stable/include/linux/dma/k3-event-router.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 *  Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com
 */

#ifndef K3_EVENT_ROUTER_
#define K3_EVENT_ROUTER_

#include <linux/types.h>

struct k3_event_route_data {
	void *priv;
	int (*set_event)(void *priv, u32 event);
};

#endif /* K3_EVENT_ROUTER_ */
dmaengine: ti: Add support for k3 event routers In k3 architecture a DMA channel (in TR momde) can be triggered by global events, origination from different modules. The events for triggers can be sent from any module which is connected to PSI-L fabric, but the event number to be sent is DMA channel specific, it is only known after the channel itself is requested. The router operation needs to be split up: - route_allocate: configure the dma_spec for the DMA and store the configuration which is needed for the router's input - set_event: callback used by the DMA driver to set the event number for the channel and enable the routing Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/20201208090440.31792-16-peter.ujfalusi@ti.com Signed-off-by: Vinod Koul <vkoul@kernel.org> 2020-12-08 09:04:35 +00:00			`/* SPDX-License-Identifier: GPL-2.0 */`
			`/*`
			`* Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com`
			`*/`

			`#ifndef K3_EVENT_ROUTER_`
			`#define K3_EVENT_ROUTER_`

			`#include <linux/types.h>`

			`struct k3_event_route_data {`
			`void *priv;`
			`int (set_event)(void priv, u32 event);`
			`};`

			`#endif /* K3_EVENT_ROUTER_ */`