OMAP3: GPIO fixes for off-mode

Off mode is now using the omap2 retention fix code for scanning GPIOs
during off-mode transitions. All the *non_wakeup_gpios variables
are now used for off-mode transition tracking on OMAP3. This patch fixes
cases where GPIO state changes are missed during off-mode.

Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index ea0000bc5358..5de07db636bd 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -376,14 +376,15 @@ void omap_sram_idle(void)
         core_next_state = pwrdm_read_next_pwrst(core_pwrdm);
         if (per_next_state < PWRDM_POWER_ON) {
                 omap_uart_prepare_idle(2);
-                omap2_gpio_prepare_for_retention();
                 if (per_next_state == PWRDM_POWER_OFF) {
                         if (core_next_state == PWRDM_POWER_ON) {
                                 per_next_state = PWRDM_POWER_RET;
                                 pwrdm_set_next_pwrst(per_pwrdm, per_next_state);
                                 per_state_modified = 1;
-                        } else
+                        } else {
+                                omap2_gpio_prepare_for_retention();
                                 omap3_per_save_context();
+                        }
                 }
         }
 
@@ -454,9 +455,10 @@ void omap_sram_idle(void)
         /* PER */
         if (per_next_state < PWRDM_POWER_ON) {
                 per_prev_state = pwrdm_read_prev_pwrst(per_pwrdm);
-                if (per_prev_state == PWRDM_POWER_OFF)
+                if (per_prev_state == PWRDM_POWER_OFF) {
                         omap3_per_restore_context();
-                omap2_gpio_resume_after_retention();
+                        omap2_gpio_resume_after_retention();
+                }
                 omap_uart_resume_idle(2);
                 if (per_state_modified)
                         pwrdm_set_next_pwrst(per_pwrdm, PWRDM_POWER_OFF);