Hi Nobuhiro, Pavel,

This patch series adds SPI driver for the Renesas RPC-IF.
Alongside relevant changes for spi-mem have been also backported.
This enables accessing SPI flash chip connected to RPC-IF.

The series includes just the driver changes as the DTS/i changes are
currently being upstreamed [1]. The driver has been tested on RZ/G2{EM}
with all the required dts/i changes [2].

All the patches have been cherry picked from Linux 5.11-rc2.

[1] https://patchwork.kernel.org/project/linux-renesas-soc/list/?series=408139
[2] https://github.com/prabhakarlad/cip/commits/master

Cheers,
Prabhakar

Boris Brezillon (5):
spi: spi-mem: Add SPI_MEM_NO_DATA to the spi_mem_data_dir enum
spi: spi-mem: Split spi_mem_exec_op() code
spi: spi-mem: Add a new API to support direct mapping
spi: spi-mem: Fix spi_mem_dirmap_destroy() kerneldoc
spi: spi-mem: Fix a memory leak in spi_mem_dirmap_destroy()

Lad Prabhakar (4):
memory: renesas-rpc-if: Return correct value to the caller of
rpcif_manual_xfer()
memory: renesas-rpc-if: Fix unbalanced pm_runtime_enable in
rpcif_{enable,disable}_rpm
memory: renesas-rpc-if: Fix a node reference leak in rpcif_probe()
memory: renesas-rpc-if: Make rpcif_enable/disable_rpm() as static
inline

Lukas Wunner (1):
spi: rpc-if: Fix use-after-free on unbind

Naga Sureshkumar Relli (1):
spi: spi-mem: export spi_mem_default_supports_op()

Sergei Shtylyov (3):
dt-bindings: memory: document Renesas RPC-IF bindings
memory: add Renesas RPC-IF driver
spi: add Renesas RPC-IF driver

Tudor Ambarus (1):
spi: spi-mem: Compute length only when needed

YueHaibing (1):
spi: spi-mem: Fix passing zero to 'PTR_ERR' warning

Zhang Qilong (1):
spi: spi-mem: fix reference leak in spi_mem_access_start

.../memory-controllers/renesas,rpc-if.yaml | 88 +++
drivers/memory/Kconfig | 9 +
drivers/memory/Makefile | 1 +
drivers/memory/renesas-rpc-if.c | 593 ++++++++++++++++++
drivers/spi/Kconfig | 6 +
drivers/spi/Makefile | 1 +
drivers/spi/spi-mem.c | 282 ++++++++-
drivers/spi/spi-rpc-if.c | 211 +++++++
include/linux/spi/spi-mem.h | 93 +++
include/memory/renesas-rpc-if.h | 96 +++
10 files changed, 1353 insertions(+), 27 deletions(-)
create mode 100644 Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml
create mode 100644 drivers/memory/renesas-rpc-if.c
create mode 100644 drivers/spi/spi-rpc-if.c
create mode 100644 include/memory/renesas-rpc-if.h

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2.17.1