spi: spi-mem: Add devm_spi_mem_dirmap_{create,destroy}()

Since direct mapping descriptors usually the same lifetime as the SPI
MEM device adding devm_ variants of the spi_mem_dirmap_{create,destroy}()
should greatly simplify error/remove path of spi-mem drivers making use
of the direct mapping API.

Signed-off-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h
index 3fe24500c5ee..3703d0dcac2e 100644
--- a/include/linux/spi/spi-mem.h
+++ b/include/linux/spi/spi-mem.h
@@ -330,6 +330,11 @@ ssize_t spi_mem_dirmap_read(struct spi_mem_dirmap_desc *desc,
 			    u64 offs, size_t len, void *buf);
 ssize_t spi_mem_dirmap_write(struct spi_mem_dirmap_desc *desc,
 			     u64 offs, size_t len, const void *buf);
+struct spi_mem_dirmap_desc *
+devm_spi_mem_dirmap_create(struct device *dev, struct spi_mem *mem,
+			   const struct spi_mem_dirmap_info *info);
+void devm_spi_mem_dirmap_destroy(struct device *dev,
+				 struct spi_mem_dirmap_desc *desc);
 
 int spi_mem_driver_register_with_owner(struct spi_mem_driver *drv,
 				       struct module *owner);