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spi: spi-mem: Create macros for DTR operation

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We do have macros for defining command, address, dummy and data
cycles. We also have a .dtr flag that implies sampling the bus on both
edges, but there are currently no macros enabling it. We might make use
of such macros, so let's create:
- SPI_MEM_DTR_OP_CMD
- SPI_MEM_DTR_OP_ADDR
- SPI_MEM_DTR_OP_DUMMY
- SPI_MEM_DTR_OP_DATA_OUT
- SPI_MEM_DTR_OP_DATA_OUT

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://patch.msgid.link/20241224-winbond-6-11-rc1-quad-support-v2-19-ad218dbc406f@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Miquel Raynal 2024-12-24 18:06:04 +01:00 committed by Mark Brown
parent d1f85873d2
commit f0006897a9
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1 changed files with 41 additions and 0 deletions
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41
include/linux/spi/spi-mem.h
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@ -20,6 +20,14 @@
.opcode = __opcode, \
}
#define SPI_MEM_DTR_OP_CMD(__opcode, __buswidth) \
{ \
.nbytes = 1, \
.opcode = __opcode, \
.buswidth = __buswidth, \
.dtr = true, \
}
#define SPI_MEM_OP_ADDR(__nbytes, __val, __buswidth) \
{ \
.nbytes = __nbytes, \
@ -27,6 +35,14 @@
.val = __val, \
}
#define SPI_MEM_DTR_OP_ADDR(__nbytes, __val, __buswidth) \
{ \
.nbytes = __nbytes, \
.val = __val, \
.buswidth = __buswidth, \
.dtr = true, \
}
#define SPI_MEM_OP_NO_ADDR { }
#define SPI_MEM_OP_DUMMY(__nbytes, __buswidth) \
@ -35,6 +51,13 @@
.buswidth = __buswidth, \
}
#define SPI_MEM_DTR_OP_DUMMY(__nbytes, __buswidth) \
{ \
.nbytes = __nbytes, \
.buswidth = __buswidth, \
.dtr = true, \
}
#define SPI_MEM_OP_NO_DUMMY { }
#define SPI_MEM_OP_DATA_IN(__nbytes, __buf, __buswidth) \
@ -45,6 +68,15 @@
.buf.in = __buf, \
}
#define SPI_MEM_DTR_OP_DATA_IN(__nbytes, __buf, __buswidth) \
{ \
.dir = SPI_MEM_DATA_IN, \
.nbytes = __nbytes, \
.buf.in = __buf, \
.buswidth = __buswidth, \
.dtr = true, \
}
#define SPI_MEM_OP_DATA_OUT(__nbytes, __buf, __buswidth) \
{ \
.buswidth = __buswidth, \
@ -53,6 +85,15 @@
.buf.out = __buf, \
}
#define SPI_MEM_DTR_OP_DATA_OUT(__nbytes, __buf, __buswidth) \
{ \
.dir = SPI_MEM_DATA_OUT, \
.nbytes = __nbytes, \
.buf.out = __buf, \
.buswidth = __buswidth, \
.dtr = true, \
}
#define SPI_MEM_OP_NO_DATA { }
/**