ARM: ux500: move PM-related PRCMU functions to machine

We are trying to decompose and decentralize the code in
the DB8500 PRCMU out into subdrivers. The code moved in
this patch concerns a group of functions used for
decoupling and recoupling the IRQs from the GIC. During
sleep and idle the Ux500 system will transfer all IRQ
handling to the PRCMU using these functions.

Basically we are left with the two alternatives of code
placement as:

- arch/arm/mach-ux500/pm.c - this because the code is
  closely related to the GIC, and takes ownership of
  some of the registers from the PRCMU related to this
  PM functionality.

- drivers/mfd/db8500-prcmu-pm.c - because the code is
  affecting stuff in the PRCMU register range. But then
  this code needs to remap and handle GIC registers.

This patch implementation is taking the first approach.

Currently the cpuidle driver is the only piece of code
using this set of functions, but it will later also be
used by the suspend/resume code which is currently under
review.

The header file is moved to:
<linux/platform_data/arm-ux500-pm.h>
The function prototypes need to be placed in a globally
visible header since the CPUidle code is planned to move
out to drivers/cpuidle.

Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Acked-by: Rickard Andersson <rickard.andersson@stericsson.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 0 insertions, 22 deletions

diff --git a/drivers/mfd/dbx500-prcmu-regs.h b/drivers/mfd/dbx500-prcmu-regs.h
index 439254d23d5..d14836ed211 100644
--- a/drivers/mfd/dbx500-prcmu-regs.h
+++ b/drivers/mfd/dbx500-prcmu-regs.h
@@ -74,33 +74,11 @@
 #define PRCM_A9PL_FORCE_CLKEN_PRCM_A9PL_FORCE_CLKEN BIT(0)
 #define PRCM_A9PL_FORCE_CLKEN_PRCM_A9AXI_FORCE_CLKEN BIT(1)
 
-/* ARM WFI Standby signal register */
-#define PRCM_ARM_WFI_STANDBY    (prcmu_base + 0x130)
-#define PRCM_ARM_WFI_STANDBY_WFI0               0x08
-#define PRCM_ARM_WFI_STANDBY_WFI1               0x10
-#define PRCM_IOCR		(prcmu_base + 0x310)
-#define PRCM_IOCR_IOFORCE			0x1
-
 /* CPU mailbox registers */
 #define PRCM_MBOX_CPU_VAL	(prcmu_base + 0x0fc)
 #define PRCM_MBOX_CPU_SET	(prcmu_base + 0x100)
 #define PRCM_MBOX_CPU_CLR	(prcmu_base + 0x104)
 
-/* Dual A9 core interrupt management unit registers */
-#define PRCM_A9_MASK_REQ	(prcmu_base + 0x328)
-#define PRCM_A9_MASK_REQ_PRCM_A9_MASK_REQ	0x1
-
-#define PRCM_A9_MASK_ACK	(prcmu_base + 0x32c)
-#define PRCM_ARMITMSK31TO0	(prcmu_base + 0x11c)
-#define PRCM_ARMITMSK63TO32	(prcmu_base + 0x120)
-#define PRCM_ARMITMSK95TO64	(prcmu_base + 0x124)
-#define PRCM_ARMITMSK127TO96	(prcmu_base + 0x128)
-#define PRCM_POWER_STATE_VAL	(prcmu_base + 0x25C)
-#define PRCM_ARMITVAL31TO0	(prcmu_base + 0x260)
-#define PRCM_ARMITVAL63TO32	(prcmu_base + 0x264)
-#define PRCM_ARMITVAL95TO64	(prcmu_base + 0x268)
-#define PRCM_ARMITVAL127TO96	(prcmu_base + 0x26C)
-
 #define PRCM_HOSTACCESS_REQ	(prcmu_base + 0x334)
 #define PRCM_HOSTACCESS_REQ_HOSTACCESS_REQ 0x1
 #define PRCM_HOSTACCESS_REQ_WAKE_REQ	BIT(16)