firmware/imx/imx-scu.c

6  * Implementation of the SCU IPC functions using MUs (client side).
36 	/* SCU uses 4 Tx and 4 Rx channels */
43 	/* temporarily store the SCU msg */
93  * Get the default handle used by SCU
105 /* Callback called when the word of a message is ack-ed, eg read by SCU */
180 		 * SCU requires that all messages words are written  in imx_scu_ipc_write()
183 		 * different channels must be ensured by SCU API interface.  in imx_scu_ipc_write()
240 		 * Some special SCU firmware APIs do NOT have return value  in imx_scu_call_rpc()
242 		 * APIs are defined as void function in SCU firmware, so they  in imx_scu_call_rpc()
282 	sc_ipc->fast_ipc = of_device_is_compatible(args.np, "fsl,imx8-mu-scu");  in imx_scu_probe()
340 	dev_info(dev, "NXP i.MX SCU Initialized\n");  in imx_scu_probe()
346 	{ .compatible = "fsl,imx-scu", },
352 		.name = "imx-scu",
365 MODULE_DESCRIPTION("IMX SCU firmware protocol driver");