ARM: mach-shmobile: Runtime PM V3

From: Magnus Damm <[email protected]>

This is the SH-Mobile ARM Runtime PM implementation V3. Only clocks are managed at this point. If Runtime PM is disabled then the clocks will be enabled before ->probe() and disabled after ->remove().

---
Depends on "Driver core: Add BUS_NOTIFY_BIND_DRIVER"
https://patchwork.kernel.org/patch/113865/

Changes since V2:
- make use of BUS_NOTIFY_BIND_DRIVER
- clean up runtime-pm-disabled using BUS_NOTIFY_UNBOUND_DRIVER

Changes since V1:
- use devres for per-device data
- support case of runtime pm disabled

 arch/arm/mach-shmobile/Makefile       |    2 
 arch/arm/mach-shmobile/clock-sh7372.c |    2 
 arch/arm/mach-shmobile/pm_runtime.c   |  169 +++++++++++++++++++++++++++++++++
 3 files changed, 171 insertions(+), 2 deletions(-)

@@ -3,7 +3,7 @@
 #
 
 # Common objects
-obj-y				:= timer.o console.o clock.o
+obj-y				:= timer.o console.o clock.o pm_runtime.o
 
 # CPU objects
 obj-$(CONFIG_ARCH_SH7367)	+= setup-sh7367.o clock-sh7367.o intc-sh7367.o

@@ -274,7 +274,7 @@ static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP201] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 1, 0), /* SCIFA3 */
 	[MSTP200] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 0, 0), /* SCIFA4 */
 	[MSTP329] = MSTP(&r_clk, SMSTPCR3, 29, 0), /* CMT10 */
-	[MSTP328] = MSTP(&div6_clks[DIV6_SPU], SMSTPCR3, 28, CLK_ENABLE_ON_INIT), /* FSIA */
+	[MSTP328] = MSTP(&div6_clks[DIV6_SPU], SMSTPCR3, 28, 0), /* FSIA */
 	[MSTP323] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 23, 0), /* IIC1 */
 	[MSTP322] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 22, 0), /* USB0 */
 	[MSTP314] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 14, 0), /* SDHI0 */