spi: Add Qualcomm QUP SPI controller support

Qualcomm Universal Peripheral (QUP) core is an AHB slave that
provides a common data path (an output FIFO and an input FIFO)
for serial peripheral interface (SPI) mini-core. SPI in master
mode supports up to 50MHz, up to four chip selects, programmable
data path from 4 bits to 32 bits and numerous protocol variants.

Cc: Alok Chauhan <alokc@codeaurora.org>
Cc: Gilad Avidov <gavidov@codeaurora.org>
Cc: Kiran Gunda <kgunda@codeaurora.org>
Cc: Sagar Dharia <sdharia@codeaurora.org>
Cc: dsneddon@codeaurora.org
Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index ba9310bc9acb..86c254d76406 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -381,6 +381,19 @@ config SPI_RSPI
         help
           SPI driver for Renesas RSPI blocks.
 
+config SPI_QUP
+        tristate "Qualcomm SPI controller with QUP interface"
+        depends on ARCH_MSM_DT
+        help
+          Qualcomm Universal Peripheral (QUP) core is an AHB slave that
+          provides a common data path (an output FIFO and an input FIFO)
+          for serial peripheral interface (SPI) mini-core. SPI in master
+          mode supports up to 50MHz, up to four chip selects, programmable
+          data path from 4 bits to 32 bits and numerous protocol variants.
+
+          This driver can also be built as a module.  If so, the module
+          will be called spi_qup.
+
 config SPI_S3C24XX
         tristate "Samsung S3C24XX series SPI"
         depends on ARCH_S3C24XX