From: Shweta Gulati <shweta.gulati@xxxxxx>
This version of patch incorporates review comments which includes
shifting the code change in specific function 'omap3_iva_idle' and
removing iva_pwrdm from pwrst_list rather than checking all the pwrdms
in list to exclude iva_pwrdm.
The PM code should not set latency on IVA power state based on
the flag 'enable_off_mode'.This is taken care of in this version.
Signed-off-by: Sripathy Vishwanath <vishwanath.bs@xxxxxx>
Signed-off-by: Shweta Gulati <shweta.gulati@xxxxxx>
---
Index: linux-omap-pm/arch/arm/mach-omap2/pm34xx.c
===================================================================
--- linux-omap-pm.orig/arch/arm/mach-omap2/pm34xx.c
+++ linux-omap-pm/arch/arm/mach-omap2/pm34xx.c
@@ -786,6 +786,12 @@ static void __init omap3_iva_idle(void)
OMAP3430_RST2_IVA2 |
OMAP3430_RST3_IVA2,
OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL);
+ /* Put the IVA2 In Idle */
+ prm_rmw_mod_reg_bits(OMAP3430_LASTPOWERSTATEENTERED_MASK, 0,
+ OMAP3430_IVA2_MOD, OMAP2_PM_PWSTCTRL);
+ /* Make Clock transition Automatic*/
+ cm_rmw_mod_reg_bits(OMAP3430_CLKTRCTRL_IVA2_MASK, 0x3,
+ OMAP3430_IVA2_MOD, OMAP2_CM_CLKSTCTRL);
}
static void __init omap3_d2d_idle(void)
@@ -1074,8 +1080,11 @@ static int __init pwrdms_setup(struct po
if (!pwrst)
return -ENOMEM;
pwrst->pwrdm = pwrdm;
- pwrst->next_state = PWRDM_POWER_RET;
- list_add(&pwrst->node, &pwrst_list);
+ if (strcmp("iva2_pwrdm", pwrdm->name)) {
+ pwrst->next_state = PWRDM_POWER_RET;
+ list_add(&pwrst->node, &pwrst_list);
+ } else
+ pwrst->next_state = PWRDM_POWER_OFF;
if (pwrdm_has_hdwr_sar(pwrdm))
pwrdm_enable_hdwr_sar(pwrdm);
Index: linux-omap-pm/arch/arm/mach-omap2/resource34xx.c
===================================================================
--- linux-omap-pm.orig/arch/arm/mach-omap2/resource34xx.c
+++ linux-omap-pm/arch/arm/mach-omap2/resource34xx.c
@@ -140,7 +140,8 @@ int set_pd_latency(struct shared_resourc
}
if (!enable_off_mode && pd_lat_level == PD_LATENCY_OFF)
- pd_lat_level = PD_LATENCY_RET;
+ if (strcmp("iva2_pwrdm", pwrdm->name))
+ pd_lat_level = PD_LATENCY_RET;
resp->curr_level = pd_lat_level;
set_pwrdm_state(pwrdm, pd_lat_level);
--
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