Unverified Commit b0b8d3ae authored by Biju Das's avatar Biju Das Committed by Mark Brown
Browse files

spi: rpc-if: Add write support for memory-mapped area 



Add write support for memory-mapped area as xSPI interface require
it.

Signed-off-by: default avatarBiju Das <biju.das.jz@bp.renesas.com>
Link: https://patch.msgid.link/20250424090000.136804-8-biju.das.jz@bp.renesas.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 798dc3f1

drivers/spi/spi-rpc-if.c

+15 −1
Original line number Diff line number Diff line
@@ -75,6 +75,19 @@ static bool rpcif_spi_mem_supports_op(struct spi_mem *mem, 
	return true;

}



static ssize_t xspi_spi_mem_dirmap_write(struct spi_mem_dirmap_desc *desc,

					 u64 offs, size_t len, const void *buf)

{

	struct rpcif *rpc = spi_controller_get_devdata(desc->mem->spi->controller);



	if (offs + desc->info.offset + len > U32_MAX)

		return -EINVAL;



	rpcif_spi_mem_prepare(desc->mem->spi, &desc->info.op_tmpl, &offs, &len);



	return xspi_dirmap_write(rpc->dev, offs, len, buf);

}



static ssize_t rpcif_spi_mem_dirmap_read(struct spi_mem_dirmap_desc *desc,

					 u64 offs, size_t len, void *buf)

{
@@ -103,7 +116,7 @@ static int rpcif_spi_mem_dirmap_create(struct spi_mem_dirmap_desc *desc) 
	if (!rpc->dirmap)

		return -EOPNOTSUPP;



	if (desc->info.op_tmpl.data.dir != SPI_MEM_DATA_IN)

	if (!rpc->xspi && desc->info.op_tmpl.data.dir != SPI_MEM_DATA_IN)

		return -EOPNOTSUPP;



	return 0;
@@ -125,6 +138,7 @@ static const struct spi_controller_mem_ops rpcif_spi_mem_ops = { 
	.exec_op	= rpcif_spi_mem_exec_op,

	.dirmap_create	= rpcif_spi_mem_dirmap_create,

	.dirmap_read	= rpcif_spi_mem_dirmap_read,

	.dirmap_write	= xspi_spi_mem_dirmap_write,

};



static int rpcif_spi_probe(struct platform_device *pdev)