[PATCH 07/12] ARM: OMAP2+: PM: use power domain functional state in stats counters

From: Jean Pihet <redacted>

The PM code uses some counters to keep track of the power domains
transitions, in order to provide the information to drivers (in
pwrdm_get_context_loss_count) and to expose the information to
sysfs for debug purpose.

This patch provides the information for each functional state.

Signed-off-by: Jean Pihet <redacted>
[paul at pwsan.com: use PWRDM_FPWRSTS_COUNT due to functional power state offset;
 use powerdomain.c fn to convert func pwrsts to names; rename 'state' to
 'fpwrst' to indicate use of func pwrsts; convert remaining users of the
 non-func pwrst API; add some kerneldoc]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/pm-debug.c    |   42 ++++-----
 arch/arm/mach-omap2/powerdomain.c |  167 ++++++++++++++++++-------------------
 arch/arm/mach-omap2/powerdomain.h |   17 ++--
 3 files changed, 108 insertions(+), 118 deletions(-)

diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c
index 806a06b..72cf9e0 100644
--- a/arch/arm/mach-omap2/pm-debug.c
+++ b/arch/arm/mach-omap2/pm-debug.c

@@ -53,13 +53,6 @@ enum {
 	DEBUG_FILE_TIMERS,
 };
 
-static const char pwrdm_state_names[][PWRDM_MAX_PWRSTS] = {
-	"OFF",
-	"RET",
-	"INA",
-	"ON"
-};
-
 void pm_dbg_update_time(struct powerdomain *pwrdm, int prev)
 {
 	s64 t;

@@ -70,7 +63,7 @@ void pm_dbg_update_time(struct powerdomain *pwrdm, int prev)
 	/* Update timer for previous state */
 	t = sched_clock();
 
-	pwrdm->state_timer[prev] += t - pwrdm->timer;
+	pwrdm->fpwrst_timer[prev - PWRDM_FPWRST_OFFSET] += t - pwrdm->timer;
 
 	pwrdm->timer = t;
 }

@@ -79,6 +72,7 @@ static int clkdm_dbg_show_counter(struct clockdomain *clkdm, void *user)
 {
 	struct seq_file *s = (struct seq_file *)user;
 
+	/* XXX This needs to be implemented in a better way */