Unverified Commit f0006897 authored by Miquel Raynal's avatar Miquel Raynal Committed by Mark Brown
Browse files

spi: spi-mem: Create macros for DTR operation 



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: default avatarMiquel 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: default avatarMark Brown <broonie@kernel.org>
parent d1f85873

include/linux/spi/spi-mem.h

+41 −0
Original line number Diff line number Diff line
@@ -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	{ }



/**