SmartReflex and SRF code should use opp_find_opp_by_opp_id() to find
OPP entries by the OPP ID. This hides OPP layer details from SR/SRF code
and also allows the removal of the open-coded OPP traversal.
---
arch/arm/mach-omap2/resource34xx.c | 30 ++++++++--------
arch/arm/mach-omap2/smartreflex.c | 66 ++++++++++++++++++++++++++++--------
2 files changed, 66 insertions(+), 30 deletions(-)
diff --git a/arch/arm/mach-omap2/resource34xx.c
b/arch/arm/mach-omap2/resource34xx.c
index baa33c4..05e70b7 100644
--- a/arch/arm/mach-omap2/resource34xx.c
+++ b/arch/arm/mach-omap2/resource34xx.c
@@ -25,6 +25,7 @@
#include <plat/powerdomain.h>
#include <plat/clockdomain.h>
#include <plat/omap34xx.h>
+#include <plat/opp_twl_tps.h>
#include "smartreflex.h"
#include "resource34xx.h"
@@ -157,10 +158,6 @@ static int curr_vdd1_opp;
static int curr_vdd2_opp;
static DEFINE_MUTEX(dvfs_mutex);
-/* Introducing deprecated function because we got to.. */
-#define IS_OPP_TERMINATOR(opps, i) (!(opps)[(i)].enabled && \
- !(opps)[(i)].rate && !(opps)[(i)].vsel)
-
/**
* opp_to_freq - convert OPPID to frequency (DEPRECATED)
* @freq: return frequency back to caller
@@ -175,20 +172,17 @@ static DEFINE_MUTEX(dvfs_mutex);
static int __deprecated opp_to_freq(unsigned long *freq,
const struct omap_opp *opps, u8 opp_id)
{
- int i = 1;
+ struct omap_opp *opp;
BUG_ON(!freq || !opps);
- /* The first entry is a dummy one, loop till we hit terminator */
- while (!IS_OPP_TERMINATOR(opps, i)) {
- if (opps[i].enabled && (opps[i].opp_id == opp_id)) {
- *freq = opps[i].rate;
- return 0;
- }
- i++;
- }
+ opp = opp_find_by_opp_id(opps, opp_id);
+ if (!opp)
+ return -EINVAL;
- return -EINVAL;
+ *freq = opp_get_freq(opp);
+
+ return 0;
}
/**
@@ -365,18 +359,22 @@ static int program_opp(int res, struct omap_opp *opp, int
target_level,
else {
u8 vc, vt;
struct omap_opp *oppx;
+ unsigned long uvdc;
+
/*
* transitioning from good to good OPP
* none of the following should fail..
*/
oppx = opp_find_freq_exact(opp, freq, true);
BUG_ON(IS_ERR(oppx));
- vt = oppx->vsel;
+ uvdc = opp_get_voltage(oppx);
+ vt = omap_twl_uv_to_vsel(uvdc);
BUG_ON(opp_to_freq(&freq, opp, current_level));
oppx = opp_find_freq_exact(opp, freq, true);
BUG_ON(IS_ERR(oppx));
- vc = oppx->vsel;
+ uvdc = opp_get_voltage(oppx);
+ vc = omap_twl_uv_to_vsel(uvdc);
/* ok to scale.. */
sr_voltagescale_vcbypass(t_opp, c_opp, vt, vc);
diff --git a/arch/arm/mach-omap2/smartreflex.c
b/arch/arm/mach-omap2/smartreflex.c
index 50332ae..e086f2d 100644
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -31,6 +31,7 @@
#include <plat/control.h>
#include <plat/clock.h>
#include <plat/omap-pm.h>
+#include <plat/opp_twl_tps.h>
#include "prm.h"
#include "smartreflex.h"
@@ -282,15 +283,20 @@ static void sr_configure_vp(int srid)
{
u32 vpconfig;
u32 vsel;
+ int uvdc;
u32 target_opp_no;
+ struct omap_opp *opp;
if (srid == SR1) {
target_opp_no = get_vdd1_opp();
if (!target_opp_no)
- /* Assume Nominal OPP as current OPP unknown */
- vsel = mpu_opps[VDD1_OPP3].vsel;
- else
- vsel = mpu_opps[target_opp_no].vsel;
+ target_opp_no = VDD1_OPP3;
+
+ opp = opp_find_by_opp_id(mpu_opps, target_opp_no);
+ BUG_ON(!opp); /* XXX ugh */
+
+ uvdc = opp_get_voltage(opp);
+ vsel = omap_twl_uv_to_vsel(uvdc);
vpconfig = PRM_VP1_CONFIG_ERROROFFSET |
PRM_VP1_CONFIG_ERRORGAIN |
@@ -333,10 +339,13 @@ static void sr_configure_vp(int srid)
} else if (srid == SR2) {
target_opp_no = get_vdd2_opp();
if (!target_opp_no)
- /* Assume Nominal OPP */
- vsel = l3_opps[VDD2_OPP3].vsel;
- else
- vsel = l3_opps[target_opp_no].vsel;
+ target_opp_no = VDD2_OPP3;
+
+ opp = opp_find_by_opp_id(l3_opps, target_opp_no);
+ BUG_ON(!opp); /* XXX ugh */
+
+ uvdc = opp_get_voltage(opp);
+ vsel = omap_twl_uv_to_vsel(uvdc);
vpconfig = PRM_VP2_CONFIG_ERROROFFSET |
PRM_VP2_CONFIG_ERRORGAIN |
@@ -428,6 +437,8 @@ static void sr_configure(struct omap_sr *sr)
static int sr_reset_voltage(int srid)
{
+ struct omap_opp *opp;
+ unsigned long uvdc;
u32 target_opp_no, vsel = 0;
u32 reg_addr = 0;
u32 loop_cnt = 0, retries_cnt = 0;
@@ -442,7 +453,14 @@ static int sr_reset_voltage(int srid)
pr_info("Current OPP unknown: Cannot reset voltage\n");
return 1;
}
- vsel = mpu_opps[target_opp_no].vsel;
+
+ opp = opp_find_by_opp_id(mpu_opps, target_opp_no);
+ if (!opp)
+ return 1;
+
+ uvdc = opp_get_voltage(opp);
+ vsel = omap_twl_uv_to_vsel(uvdc);
+
reg_addr = R_VDD1_SR_CONTROL;
prm_vp1_voltage = prm_read_mod_reg(OMAP3430_GR_MOD,
OMAP3_PRM_VP1_VOLTAGE_OFFSET);
@@ -453,7 +471,14 @@ static int sr_reset_voltage(int srid)
pr_info("Current OPP unknown: Cannot reset voltage\n");
return 1;
}
- vsel = l3_opps[target_opp_no].vsel;
+
+ opp = opp_find_by_opp_id(l3_opps, target_opp_no);
+ if (!opp)
+ return 1;
+
+ uvdc = opp_get_voltage(opp);
+ vsel = omap_twl_uv_to_vsel(uvdc);
+
reg_addr = R_VDD2_SR_CONTROL;
prm_vp2_voltage = prm_read_mod_reg(OMAP3430_GR_MOD,
OMAP3_PRM_VP2_VOLTAGE_OFFSET);
@@ -499,6 +524,9 @@ static int sr_reset_voltage(int srid)
static int sr_enable(struct omap_sr *sr, u32 target_opp_no)
{
u32 nvalue_reciprocal, v;
+ struct omap_opp *opp;
+ int uvdc;
+ char vsel;
if (!(mpu_opps && l3_opps)) {
pr_notice("VSEL values not found\n");
@@ -528,6 +556,10 @@ static int sr_enable(struct omap_sr *sr, u32 target_opp_no)
nvalue_reciprocal = sr->opp3_nvalue;
break;
}
+
+ opp = opp_find_by_opp_id(mpu_opps, target_opp_no);
+ if (!opp)
+ return false;
} else {
switch (target_opp_no) {
case 3:
@@ -543,6 +575,10 @@ static int sr_enable(struct omap_sr *sr, u32 target_opp_no)
nvalue_reciprocal = sr->opp3_nvalue;
break;
}
+
+ opp = opp_find_by_opp_id(l3_opps, target_opp_no);
+ if (!opp)
+ return false;
}
if (nvalue_reciprocal == 0) {
@@ -558,13 +594,16 @@ static int sr_enable(struct omap_sr *sr, u32
target_opp_no)
(ERRCONFIG_VPBOUNDINTEN | ERRCONFIG_VPBOUNDINTST),
(ERRCONFIG_VPBOUNDINTEN | ERRCONFIG_VPBOUNDINTST));
+ uvdc = opp_get_voltage(opp);
+ vsel = omap_twl_uv_to_vsel(uvdc);
+
if (sr->srid == SR1) {
/* set/latch init voltage */
v = prm_read_mod_reg(OMAP3430_GR_MOD,
OMAP3_PRM_VP1_CONFIG_OFFSET);
v &= ~(OMAP3430_INITVOLTAGE_MASK | OMAP3430_INITVDD);
- v |= mpu_opps[target_opp_no].vsel <<
- OMAP3430_INITVOLTAGE_SHIFT;
+
+ v |= vsel << OMAP3430_INITVOLTAGE_SHIFT;
prm_write_mod_reg(v, OMAP3430_GR_MOD,
OMAP3_PRM_VP1_CONFIG_OFFSET);
/* write1 to latch */
@@ -581,8 +620,7 @@ static int sr_enable(struct omap_sr *sr, u32 target_opp_no)
v = prm_read_mod_reg(OMAP3430_GR_MOD,
OMAP3_PRM_VP2_CONFIG_OFFSET);
v &= ~(OMAP3430_INITVOLTAGE_MASK | OMAP3430_INITVDD);
- v |= l3_opps[target_opp_no].vsel <<
- OMAP3430_INITVOLTAGE_SHIFT;
+ v |= vsel << OMAP3430_INITVOLTAGE_SHIFT;
prm_write_mod_reg(v, OMAP3430_GR_MOD,
OMAP3_PRM_VP2_CONFIG_OFFSET);
/* write1 to latch */
--
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