Merge branch 'pxa-plat' into devel

* pxa-plat: (53 commits)
  [ARM] 4762/1: Basic support for Toradex Colibri module
  [ARM] pxa: fix mci_init functions returning -1
  [ARM] 4737/1: Refactor corgi_lcd to improve readability + bugfix
  [ARM] 4747/1: pcm027: support for pcm990 baseboard for phyCORE-PXA270
  [ARM] 4746/1: pcm027: network support for phyCORE-PXA270
  [ARM] 4745/1: pcm027: default configuration
  [ARM] 4744/1: pcm027: add support for phyCORE-PXA270 CPU module
  [NET] smc91x: Make smc91x use IRQ resource trigger flags
  [ARM] pxa: add default config for littleton
  [ARM] pxa: add basic support for Littleton (PXA3xx Form Factor Platform)
  [ARM] 4664/1: Add basic support for HTC Magician PDA phones
  [ARM] 4649/1: Base support for pxa-based Toshiba e-series PDAs.
  [ARM] pxa: skip registers saving/restoring if entering standby mode
  [ARM] pxa: fix PXA27x resume
  [ARM] pxa: Avoid fiddling with CKEN register on suspend
  [ARM] pxa: Add PXA3 standby code hooked into the IRQ wake scheme
  [ARM] pxa: Add zylonite MFP wakeup configurations
  [ARM] pxa: program MFPs for low power mode when suspending
  [ARM] pxa: make MFP configuration processor independent
  [ARM] pxa: remove un-used pxa3xx_mfp_set_xxx() functions
  ...

Conflicts:

	arch/arm/mach-pxa/ssp.c

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 18 insertions, 15 deletions

diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c
index a941c71c7d0..039194cbe47 100644
--- a/arch/arm/mach-pxa/pm.c
+++ b/arch/arm/mach-pxa/pm.c
@@ -38,34 +38,37 @@ int pxa_pm_enter(suspend_state_t state)
 		iwmmxt_task_disable(NULL);
 #endif
 
-	pxa_cpu_pm_fns->save(sleep_save);
+	/* skip registers saving for standby */
+	if (state != PM_SUSPEND_STANDBY) {
+		pxa_cpu_pm_fns->save(sleep_save);
+		/* before sleeping, calculate and save a checksum */
+		for (i = 0; i < pxa_cpu_pm_fns->save_size - 1; i++)
+			sleep_save_checksum += sleep_save[i];
+	}
 
 	/* Clear sleep reset status */
 	RCSR = RCSR_SMR;
 
-	/* before sleeping, calculate and save a checksum */
-	for (i = 0; i < pxa_cpu_pm_fns->save_size - 1; i++)
-		sleep_save_checksum += sleep_save[i];
-
 	/* *** go zzz *** */
 	pxa_cpu_pm_fns->enter(state);
 	cpu_init();
 
-	/* after sleeping, validate the checksum */
-	for (i = 0; i < pxa_cpu_pm_fns->save_size - 1; i++)
-		checksum += sleep_save[i];
+	if (state != PM_SUSPEND_STANDBY) {
+		/* after sleeping, validate the checksum */
+		for (i = 0; i < pxa_cpu_pm_fns->save_size - 1; i++)
+			checksum += sleep_save[i];
 
-	/* if invalid, display message and wait for a hardware reset */
-	if (checksum != sleep_save_checksum) {
+		/* if invalid, display message and wait for a hardware reset */
+		if (checksum != sleep_save_checksum) {
 #ifdef CONFIG_ARCH_LUBBOCK
-		LUB_HEXLED = 0xbadbadc5;
+			LUB_HEXLED = 0xbadbadc5;
 #endif
-		while (1)
-			pxa_cpu_pm_fns->enter(state);
+			while (1)
+				pxa_cpu_pm_fns->enter(state);
+		}
+		pxa_cpu_pm_fns->restore(sleep_save);
 	}
 
-	pxa_cpu_pm_fns->restore(sleep_save);
-
 	pr_debug("*** made it back from resume\n");
 
 	return 0;