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Diffstat (limited to 'arch/arm/mach-omap2/smartreflex.c')
-rw-r--r--arch/arm/mach-omap2/smartreflex.c38
1 files changed, 18 insertions, 20 deletions
diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
index acef08d..20075de 100644
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -347,22 +347,23 @@ static void sr_v2_disable(struct omap_sr *sr)
sr_write_reg(sr, IRQSTATUS, IRQSTATUS_MCUDISABLEACKINT);
}
-static u32 sr_retrieve_nvalue(struct omap_sr *sr, u32 efuse_offs)
+static struct omap_sr_nvalue_table *sr_retrieve_nvalue_row(
+ struct omap_sr *sr, u32 efuse_offs)
{
int i;
if (!sr->nvalue_table) {
dev_warn(&sr->pdev->dev, "%s: Missing ntarget value table\n",
__func__);
- return 0;
+ return NULL;
}
for (i = 0; i < sr->nvalue_count; i++) {
if (sr->nvalue_table[i].efuse_offs == efuse_offs)
- return sr->nvalue_table[i].nvalue;
+ return &sr->nvalue_table[i];
}
- return 0;
+ return NULL;
}
/* Public Functions */
@@ -586,7 +587,7 @@ int sr_enable(struct voltagedomain *voltdm, unsigned long volt)
{
struct omap_volt_data *volt_data;
struct omap_sr *sr = _sr_lookup(voltdm);
- u32 nvalue_reciprocal;
+ struct omap_sr_nvalue_table *nvalue_row;
int ret;
if (IS_ERR(sr)) {
@@ -602,16 +603,16 @@ int sr_enable(struct voltagedomain *voltdm, unsigned long volt)
return PTR_ERR(volt_data);
}
- nvalue_reciprocal = sr_retrieve_nvalue(sr, volt_data->sr_efuse_offs);
+ nvalue_row = sr_retrieve_nvalue_row(sr, volt_data->sr_efuse_offs);
- if (!nvalue_reciprocal) {
- dev_warn(&sr->pdev->dev, "%s: NVALUE = 0 at voltage %ld\n",
- __func__, volt);
+ if (!nvalue_row) {
+ dev_warn(&sr->pdev->dev, "%s: failure getting SR data for this voltage %ld\n",
+ __func__, volt);
return -ENODATA;
}
/* errminlimit is opp dependent and hence linked to voltage */
- sr->err_minlimit = volt_data->sr_errminlimit;
+ sr->err_minlimit = nvalue_row->errminlimit;
pm_runtime_get_sync(&sr->pdev->dev);
@@ -624,7 +625,7 @@ int sr_enable(struct voltagedomain *voltdm, unsigned long volt)
if (ret)
return ret;
- sr_write_reg(sr, NVALUERECIPROCAL, nvalue_reciprocal);
+ sr_write_reg(sr, NVALUERECIPROCAL, nvalue_row->nvalue);
/* SRCONFIG - enable SR */
sr_modify_reg(sr, SRCONFIG, SRCONFIG_SRENABLE, SRCONFIG_SRENABLE);
@@ -872,7 +873,6 @@ static int __init omap_sr_probe(struct platform_device *pdev)
struct omap_sr_data *pdata = pdev->dev.platform_data;
struct resource *mem, *irq;
struct dentry *nvalue_dir;
- struct omap_volt_data *volt_data;
int i, ret = 0;
sr_info = kzalloc(sizeof(struct omap_sr), GFP_KERNEL);
@@ -990,12 +990,10 @@ static int __init omap_sr_probe(struct platform_device *pdev)
goto err_debugfs;
}
- omap_voltage_get_volttable(sr_info->voltdm, &volt_data);
- if (!volt_data) {
- dev_warn(&pdev->dev, "%s: %s: No Voltage table for the"
- " corresponding vdd. Cannot create debugfs"
- "entries for n-values\n",
- __func__, sr_info->name);
+ if (sr_info->nvalue_count == 0 || !sr_info->nvalue_table) {
+ dev_warn(&pdev->dev, "%s: %s: No Voltage table for the corresponding vdd. Cannot create debugfs entries for n-values\n",
+ __func__, sr_info->name);
+
ret = -ENODATA;
goto err_debugfs;
}
@@ -1003,8 +1001,8 @@ static int __init omap_sr_probe(struct platform_device *pdev)
for (i = 0; i < sr_info->nvalue_count; i++) {
char name[NVALUE_NAME_LEN + 1];
- snprintf(name, sizeof(name), "volt_%d",
- volt_data[i].volt_nominal);
+ snprintf(name, sizeof(name), "volt_%lu",
+ sr_info->nvalue_table[i].volt_nominal);
(void) debugfs_create_x32(name, S_IRUGO | S_IWUSR, nvalue_dir,
&(sr_info->nvalue_table[i].nvalue));
}
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