[POWERPC] PS3: Vuart rework

PS3 vuart updates to reflect the new PS3 unified device support.
 - Move vuart devices to the PS3 system bus.
 - Replace use of ps3_vuart_port_device with ps3_system_bus_device.
 - Make the PS3 vuart bus driver a loadable module.
 - Add remove() and shutdown() routines.
 - Move ps3_vuart_work into ps3_vuart_port_priv.tx_list.
 - Remove redundant spinlock ps3_vuart_work.lock.
 - No longer free ps3_vuart_port_device.priv on shutdown.
 - Cleanup Kconfig defs.
 - Export symbols needed for modular port drivers.
 - Arrange to use port numbers found in repository.
 - Fix bugs in ps3_vuart_read_async() and polled reading
 - Cleanup handling of shared interrupt with ps3_vuart_bus_interrupt_get()
   and ps3_vuart_bus_interrupt_put()
 - Add more comments to vuart.c.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

2 files changed, 10 insertions, 13 deletions

diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig
index 40f0008af4d..b5122a76481 100644
--- a/arch/powerpc/platforms/ps3/Kconfig
+++ b/arch/powerpc/platforms/ps3/Kconfig
@@ -73,18 +73,12 @@ config PS3_USE_LPAR_ADDR
 
 config PS3_VUART
         depends on PPC_PS3
-        bool "PS3 Virtual UART support" if PS3_ADVANCED
-        default y
-        help
-          Include support for the PS3 Virtual UART.
-
-          This support is required for several system services
-          including the System Manager and AV Settings.  In
-          general, all users will say Y.
+        tristate
 
 config PS3_PS3AV
+        depends on PPC_PS3
         tristate "PS3 AV settings driver" if PS3_ADVANCED
-        depends on PS3_VUART
+        select PS3_VUART
         default y
         help
           Include support for the PS3 AV Settings driver.
@@ -93,13 +87,14 @@ config PS3_PS3AV
           general, all users will say Y or M.
 
 config PS3_SYS_MANAGER
-        bool "PS3 System Manager driver" if PS3_ADVANCED
-        depends on PS3_VUART
-        default y
+        depends on PPC_PS3
+        tristate "PS3 System Manager driver" if PS3_ADVANCED
+        select PS3_VUART
+        default m
         help
           Include support for the PS3 System Manager.
 
           This support is required for system control.  In
-          general, all users will say Y.
+          general, all users will say Y or M.
 
 endmenu
diff --git a/arch/powerpc/platforms/ps3/interrupt.c b/arch/powerpc/platforms/ps3/interrupt.c
index 51141dc06f9..99a0826c8d9 100644
--- a/arch/powerpc/platforms/ps3/interrupt.c
+++ b/arch/powerpc/platforms/ps3/interrupt.c
@@ -564,6 +564,7 @@ int ps3_vuart_irq_setup(enum ps3_cpu_binding cpu, void* virt_addr_bmp,
 
         return result;
 }
+EXPORT_SYMBOL_GPL(ps3_vuart_irq_setup);
 
 int ps3_vuart_irq_destroy(unsigned int virq)
 {
@@ -583,6 +584,7 @@ int ps3_vuart_irq_destroy(unsigned int virq)
 
         return result;
 }
+EXPORT_SYMBOL_GPL(ps3_vuart_irq_destroy);
 
 /**
  * ps3_spe_irq_setup - Setup an spe virq.