drivers/fsi/fsi-master.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
3  * FSI master definitions. These comprise the core <--> master interface,
4  * to allow the core to interact with the (hardware-specific) masters.
24 #define FSI_MDLYR		0x4		/* R/W: delay */
33 #define FSI_MRESP0		0xd0		/* W: Port reset */
35 #define FSI_MRESB0		0x1d0		/* W: Reset bridge */
47 						/*   MSB=1, LSB=0 is 0.8 ms */
48 						/*   MSB=0, LSB=1 is 0.9 ms */
54 /* MRESB: Reset bridge */
55 #define FSI_MRESB_RST_GEN	0x80000000	/* General reset */
56 #define FSI_MRESB_RST_ERR	0x40000000	/* Error Reset */
58 /* MRESP: Reset port */
59 #define FSI_MRESP_RST_ALL_MASTER 0x20000000	/* Reset all FSI masters */
60 #define FSI_MRESP_RST_ALL_LINK	0x10000000	/* Reset all FSI port contr. */
61 #define FSI_MRESP_RST_MCR	0x08000000	/* Reset FSI master reg. */
62 #define FSI_MRESP_RST_PYE	0x04000000	/* Reset FSI parity error */
63 #define FSI_MRESP_RST_ALL	0xfc000000	/* Reset any error */
77  * These are used by low level masters that bit-bang out the protocol
81 #define	FSI_ECHO_DELAY_CLOCKS	16	/* Number clocks for echo delay */
82 #define	FSI_SEND_DELAY_CLOCKS	16	/* Number clocks for send delay */
101 #define FSI_CMD_SAME_AR		0x3	/* but only a 2-bit opcode... */
112 /* fsi-master definition and flags */
144  * ->dev in particular. The registration path performs a get_device(), which
149  * reference (via get_device()) on master->dev. In particular, if the device's
150  * ->release callback frees the fsi_master, then fsi_master_unregister will
154  * fails, dev->release will have been invoked.