mfd: Add mfd_clone_cell(), convert cs5535-mfd/olpc-xo1 to it

Replace mfd_shared_platform_driver_register with mfd_clone_cell.  The
former was called by an mfd client, and registered both a platform driver
and device.  The latter is called by an mfd driver, and registers only a
platform device.

The downside of this is that mfd drivers need to be modified whenever
new clients are added that share a cell; the upside is that it fits
Linux's driver model better.  It's also simpler.

This also converts cs5535-mfd/olpc-xo1 from the old API.  cs5535-mfd
now creates the olpc-xo1-{acpi,pms} devices, while olpc-xo1 binds to
them via platform drivers.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 5 insertions, 6 deletions

diff --git a/arch/x86/platform/olpc/olpc-xo1.c b/arch/x86/platform/olpc/olpc-xo1.c
index 99513642a0e6..386e3a159cca 100644
--- a/arch/x86/platform/olpc/olpc-xo1.c
+++ b/arch/x86/platform/olpc/olpc-xo1.c
@@ -121,22 +121,21 @@ static int __init olpc_xo1_init(void)
 {
         int r;
 
-        r = mfd_shared_platform_driver_register(&cs5535_pms_drv, "cs5535-pms");
+        r = platform_driver_register(&cs5535_pms_drv);
         if (r)
                 return r;
 
-        r = mfd_shared_platform_driver_register(&cs5535_acpi_drv,
-                        "cs5535-acpi");
+        r = platform_driver_register(&cs5535_acpi_drv);
         if (r)
-                mfd_shared_platform_driver_unregister(&cs5535_pms_drv);
+                platform_driver_unregister(&cs5535_pms_drv);
 
         return r;
 }
 
 static void __exit olpc_xo1_exit(void)
 {
-        mfd_shared_platform_driver_unregister(&cs5535_acpi_drv);
-        mfd_shared_platform_driver_unregister(&cs5535_pms_drv);
+        platform_driver_unregister(&cs5535_acpi_drv);
+        platform_driver_unregister(&cs5535_pms_drv);
 }
 
 MODULE_AUTHOR("Daniel Drake <dsd@laptop.org>");