Merge series "spi: Add FSI-attached SPI controller driver" from Eddie…

… James <[email protected]>:

This series adds a dts binding and a driver for a new SPI controller that is
accessed over FSI bus.

Eddie James (2):
  dt-bindings: fsi: Add FSI2SPI bindings
  spi: Add FSI-attached SPI controller driver

 .../devicetree/bindings/fsi/ibm,fsi2spi.yaml  |  36 ++
 MAINTAINERS                                   |   7 +
 drivers/spi/Kconfig                           |   7 +
 drivers/spi/Makefile                          |   1 +
 drivers/spi/spi-fsi.c                         | 558 ++++++++++++++++++
 5 files changed, 609 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml
 create mode 100644 drivers/spi/spi-fsi.c

--
2.24.0

Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml

@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: (GPL-2.0-or-later)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/fsi/ibm,fsi2spi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: IBM FSI-attached SPI controllers
+
+maintainers:
+ - Eddie James <[email protected]>
+
+description: |
+  This binding describes an FSI CFAM engine called the FSI2SPI. Therefore this
+  node will always be a child of an FSI CFAM node; see fsi.txt for details on
+  FSI slave and CFAM nodes. This FSI2SPI engine provides access to a number of
+  SPI controllers.
+
+properties:
+  compatible:
+    enum:
+      - ibm,fsi2spi
+
+  reg:
+    items:
+      - description: FSI slave address
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    fsi2spi@1c00 {
+        compatible = "ibm,fsi2spi";
+        reg = <0x1c00 0x400>;
+    };

MAINTAINERS

@@ -6861,6 +6861,13 @@ S:	Maintained
 F:	drivers/i2c/busses/i2c-fsi.c
 F:	Documentation/devicetree/bindings/i2c/i2c-fsi.txt
 
+FSI-ATTACHED SPI DRIVER
+M:	Eddie James <[email protected]>
+L:	[email protected]
+S:	Maintained
+F:	drivers/spi/spi-fsi.c
+F:	Documentation/devicetree/bindings/fsi/ibm,fsi2spi.yaml
+
 FSNOTIFY: FILESYSTEM NOTIFICATION INFRASTRUCTURE
 M:	Jan Kara <[email protected]>
 R:	Amir Goldstein <[email protected]>

drivers/spi/Kconfig

@@ -271,6 +271,13 @@ config SPI_FALCON
 	  has only been tested with m25p80 type chips. The hardware has no
 	  support for other types of SPI peripherals.
 
+config SPI_FSI
+	tristate "FSI SPI driver"
+	depends on FSI
+	help
+	  This enables support for the driver for FSI bus attached SPI
+	  controllers.
+
 config SPI_FSL_LPSPI
 	tristate "Freescale i.MX LPSPI controller"
 	depends on ARCH_MXC || COMPILE_TEST

drivers/spi/Makefile

@@ -42,6 +42,7 @@ spi-dw-midpci-objs			:= spi-dw-pci.o spi-dw-mid.o
 obj-$(CONFIG_SPI_EFM32)			+= spi-efm32.o
 obj-$(CONFIG_SPI_EP93XX)		+= spi-ep93xx.o
 obj-$(CONFIG_SPI_FALCON)		+= spi-falcon.o
+obj-$(CONFIG_SPI_FSI)			+= spi-fsi.o
 obj-$(CONFIG_SPI_FSL_CPM)		+= spi-fsl-cpm.o
 obj-$(CONFIG_SPI_FSL_DSPI)		+= spi-fsl-dspi.o
 obj-$(CONFIG_SPI_FSL_LIB)		+= spi-fsl-lib.o