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

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

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://patch.msgid.link/20250424090000.136804-8-biju.das.jz@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Biju Das 2025-04-24 09:59:55 +01:00 committed by Mark Brown
parent 798dc3f19c
commit b0b8d3aead
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GPG key ID: 24D68B725D5487D0
1 changed files with 15 additions and 1 deletions
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16
drivers/spi/spi-rpc-if.c
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@ -75,6 +75,19 @@ static bool rpcif_spi_mem_supports_op(struct spi_mem *mem,
return true; 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, static ssize_t rpcif_spi_mem_dirmap_read(struct spi_mem_dirmap_desc *desc,
u64 offs, size_t len, void *buf) 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) if (!rpc->dirmap)
return -EOPNOTSUPP; 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 -EOPNOTSUPP;
return 0; return 0;
@ -125,6 +138,7 @@ static const struct spi_controller_mem_ops rpcif_spi_mem_ops = {
.exec_op = rpcif_spi_mem_exec_op, .exec_op = rpcif_spi_mem_exec_op,
.dirmap_create = rpcif_spi_mem_dirmap_create, .dirmap_create = rpcif_spi_mem_dirmap_create,
.dirmap_read = rpcif_spi_mem_dirmap_read, .dirmap_read = rpcif_spi_mem_dirmap_read,
.dirmap_write = xspi_spi_mem_dirmap_write,
}; };
static int rpcif_spi_probe(struct platform_device *pdev) static int rpcif_spi_probe(struct platform_device *pdev)