ARM: OMAP3: PM: remove access to PRM_VOLTCTRL register

There is a solitary write to this register every wakeup from off-mode,
which isn't doing anything, so remove it.

Also note that modifying this register trashes any attempted
voltage scaling configuration and the change probably should
never have gotten merged in the first place.

Cc: Nishanth Menon <nm@ti.com>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
[tony@atomide.com: updated comments to describe regression]
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 1f3770a8a7286fd7650f76d46917408d0ff52b96..87099bb6de692771ce7d26a720f0bec5836d6beb 100644 (file)
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -330,10 +330,6 @@ void omap_sram_idle(void)
                        omap3_sram_restore_context();
                        omap2_sms_restore_context();
                }
-               if (core_next_state == PWRDM_POWER_OFF)
-                       omap2_prm_clear_mod_reg_bits(OMAP3430_AUTO_OFF_MASK,
-                                              OMAP3430_GR_MOD,
-                                              OMAP3_PRM_VOLTCTRL_OFFSET);
        }
        omap3_intc_resume_idle();