diff options
Diffstat (limited to 'target/linux/cns3xxx/patches-4.4/075-spi_support.patch')
| -rw-r--r-- | target/linux/cns3xxx/patches-4.4/075-spi_support.patch | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/target/linux/cns3xxx/patches-4.4/075-spi_support.patch b/target/linux/cns3xxx/patches-4.4/075-spi_support.patch new file mode 100644 index 0000000000..e539d1e16c --- /dev/null +++ b/target/linux/cns3xxx/patches-4.4/075-spi_support.patch @@ -0,0 +1,51 @@ +--- a/drivers/spi/Kconfig ++++ b/drivers/spi/Kconfig +@@ -183,6 +183,13 @@ 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 +@@ -26,6 +26,7 @@ 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 +@@ -698,6 +698,10 @@ 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 +@@ -933,6 +933,9 @@ 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, master); + spi_statistics_add_transfer_stats(stats, xfer, master); + |