Initial commit

target/linux/cns3xxx/patches-4.14/075-spi_support.patch

@@ -0,0 +1,51 @@
+--- a/drivers/spi/Kconfig
++++ b/drivers/spi/Kconfig
+@@ -206,6 +206,13 @@ config SPI_CLPS711X
+ 	  This enables dedicated general purpose SPI/Microwire1-compatible
+ 	  master mode interface (SSI1) for CLPS711X-based CPUs.
+ 
++config SPI_CNS3XXX
++	tristate "CNS3XXX SPI controller"
++	depends on ARCH_CNS3XXX && SPI_MASTER
++	select SPI_BITBANG
++	help
++	  This enables using the CNS3XXX SPI controller in master mode.
++
+ config SPI_COLDFIRE_QSPI
+ 	tristate "Freescale Coldfire QSPI controller"
+ 	depends on (M520x || M523x || M5249 || M525x || M527x || M528x || M532x)
+--- a/drivers/spi/Makefile
++++ b/drivers/spi/Makefile
+@@ -31,6 +31,7 @@ obj-$(CONFIG_SPI_BITBANG)		+= spi-bitban
+ obj-$(CONFIG_SPI_BUTTERFLY)		+= spi-butterfly.o
+ obj-$(CONFIG_SPI_CADENCE)		+= spi-cadence.o
+ obj-$(CONFIG_SPI_CLPS711X)		+= spi-clps711x.o
++obj-$(CONFIG_SPI_CNS3XXX)		+= spi-cns3xxx.o
+ obj-$(CONFIG_SPI_COLDFIRE_QSPI)		+= spi-coldfire-qspi.o
+ obj-$(CONFIG_SPI_DAVINCI)		+= spi-davinci.o
+ obj-$(CONFIG_SPI_DLN2)			+= spi-dln2.o
+--- a/include/linux/spi/spi.h
++++ b/include/linux/spi/spi.h
+@@ -799,6 +799,10 @@ struct spi_transfer {
+ 	u32		speed_hz;
+ 
+ 	struct list_head transfer_list;
++
++#ifdef CONFIG_ARCH_CNS3XXX
++	unsigned	last_in_message_list;
++#endif
+ };
+ 
+ /**
+--- a/drivers/spi/spi.c
++++ b/drivers/spi/spi.c
+@@ -1041,6 +1041,9 @@ static int spi_transfer_one_message(stru
+ 	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
+ 		trace_spi_transfer_start(msg, xfer);
+ 
++		xfer->last_in_message_list =
++			list_is_last(&xfer->transfer_list, &msg->transfers);
++
+ 		spi_statistics_add_transfer_stats(statm, xfer, ctlr);
+ 		spi_statistics_add_transfer_stats(stats, xfer, ctlr);
+