ata: add new-style AHCI platform driver for DaVinci DA850 AHCI controller

Add the new ahci_da850 host driver.

Platform changes needed to make DaVinci DA850 SATA AHCI support
fully functional are in the separate "ARM: davinci: da850: update
SATA AHCI support" commit.

Please note that this driver doesn't have the superfluous clock
control code as clock is already handled by the generic AHCI
platform library code.

Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 12767ad098e0..6e3be7d78adc 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -97,6 +97,15 @@ config SATA_AHCI_PLATFORM
 
           If unsure, say N.
 
+config AHCI_DA850
+        tristate "DaVinci DA850 AHCI SATA support"
+        depends on ARCH_DAVINCI_DA850
+        help
+          This option enables support for the DaVinci DA850 SoC's
+          onboard AHCI SATA.
+
+          If unsure, say N.
+
 config AHCI_ST
         tristate "ST AHCI SATA support"
         depends on ARCH_STI