dmaengine: hsu: make the UART driver in control of selecting this driver

HSU (High Speed UART) DMA engine, like the name suggests, is
an integrated DMA engine for UART and UART alone. Therefore,
making the UART drivers responsible of selecting it and
removing the user selectable option for it. The UARTs with
this DMA engine can always select HSU_DMA when
SERIAL_8250_DMA option is enabled.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2 files changed, 4 insertions, 7 deletions

diff --git a/drivers/dma/hsu/Kconfig b/drivers/dma/hsu/Kconfig
index 2810dca70612..c70841731a80 100644
--- a/drivers/dma/hsu/Kconfig
+++ b/drivers/dma/hsu/Kconfig
@@ -5,10 +5,5 @@ config HSU_DMA
         select DMA_VIRTUAL_CHANNELS
 
 config HSU_DMA_PCI
-        tristate "High Speed UART DMA PCI driver"
-        depends on PCI
-        select HSU_DMA
-        help
-          Support the High Speed UART DMA on the platfroms that
-          enumerate it as a PCI device. For example, Intel Medfield
-          has integrated this HSU DMA controller.
+        tristate
+        depends on HSU_DMA && PCI
diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
index f4a689743aa2..e6f5e12a2d83 100644
--- a/drivers/tty/serial/8250/Kconfig
+++ b/drivers/tty/serial/8250/Kconfig
@@ -371,6 +371,8 @@ config SERIAL_8250_INGENIC
 config SERIAL_8250_MID
         tristate "Support for serial ports on Intel MID platforms"
         depends on SERIAL_8250 && PCI
+        select HSU_DMA if SERIAL_8250_DMA
+        select HSU_DMA_PCI if X86_INTEL_MID
         help
           Selecting this option will enable handling of the extra features
           present on the UART found on Intel Medfield SOC and various other