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yaml
---
r: 226665
b: refs/heads/master
c: 077fcec
h: refs/heads/master
i:
  226663: 0d463cc
v: v3
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Thara Gopinath authored and Kevin Hilman committed Dec 22, 2010
1 parent 4bec388 commit d451598
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Showing 3 changed files with 111 additions and 3 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: fbc319f67660ede23cc22f3af5df559693f8062e
refs/heads/master: 077fceca3a5db69791d64723ffba1caad2f03a08
46 changes: 44 additions & 2 deletions trunk/arch/arm/mach-omap2/smartreflex.c
Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,7 @@
#include "pm.h"

#define SMARTREFLEX_NAME_LEN 16
#define NVALUE_NAME_LEN 40
#define SR_DISABLE_TIMEOUT 200

struct omap_sr {
Expand Down Expand Up @@ -817,8 +818,9 @@ static int __init omap_sr_probe(struct platform_device *pdev)
struct omap_sr *sr_info = kzalloc(sizeof(struct omap_sr), GFP_KERNEL);
struct omap_sr_data *pdata = pdev->dev.platform_data;
struct resource *mem, *irq;
struct dentry *vdd_dbg_dir, *dbg_dir;
int ret = 0;
struct dentry *vdd_dbg_dir, *dbg_dir, *nvalue_dir;
struct omap_volt_data *volt_data;
int i, ret = 0;

if (!sr_info) {
dev_err(&pdev->dev, "%s: unable to allocate sr_info\n",
Expand Down Expand Up @@ -897,6 +899,46 @@ static int __init omap_sr_probe(struct platform_device *pdev)

(void) debugfs_create_file("autocomp", S_IRUGO | S_IWUGO, dbg_dir,
(void *)sr_info, &pm_sr_fops);
(void) debugfs_create_x32("errweight", S_IRUGO, dbg_dir,
&sr_info->err_weight);
(void) debugfs_create_x32("errmaxlimit", S_IRUGO, dbg_dir,
&sr_info->err_maxlimit);
(void) debugfs_create_x32("errminlimit", S_IRUGO, dbg_dir,
&sr_info->err_minlimit);

nvalue_dir = debugfs_create_dir("nvalue", dbg_dir);
if (IS_ERR(nvalue_dir)) {
dev_err(&pdev->dev, "%s: Unable to create debugfs directory"
"for n-values\n", __func__);
return PTR_ERR(nvalue_dir);
}

omap_voltage_get_volttable(sr_info->voltdm, &volt_data);
if (!volt_data) {
dev_warn(&pdev->dev, "%s: No Voltage table for the"
" corresponding vdd vdd_%s. Cannot create debugfs"
"entries for n-values\n",
__func__, sr_info->voltdm->name);
return -ENODATA;
}

for (i = 0; i < sr_info->nvalue_count; i++) {
char *name;
char volt_name[32];

name = kzalloc(NVALUE_NAME_LEN + 1, GFP_KERNEL);
if (!name) {
dev_err(&pdev->dev, "%s: Unable to allocate memory"
" for n-value directory name\n", __func__);
return -ENOMEM;
}

strcpy(name, "volt_");
sprintf(volt_name, "%d", volt_data[i].volt_nominal);
strcat(name, volt_name);
(void) debugfs_create_x32(name, S_IRUGO | S_IWUGO, nvalue_dir,
&(sr_info->nvalue_table[i].nvalue));
}

return ret;

Expand Down
66 changes: 66 additions & 0 deletions trunk/arch/arm/mach-omap2/voltage.c
Original file line number Diff line number Diff line change
Expand Up @@ -250,6 +250,47 @@ static void omap3_voltage_write_reg(u32 val, u16 mod, u8 offset)
omap2_prm_write_mod_reg(val, mod, offset);
}

/* Voltage debugfs support */
static int vp_volt_debug_get(void *data, u64 *val)
{
struct omap_vdd_info *vdd = (struct omap_vdd_info *) data;
u8 vsel;

if (!vdd) {
pr_warning("Wrong paramater passed\n");
return -EINVAL;
}

vsel = vdd->read_reg(vdd->vp_reg.prm_mod, vdd->vp_offs.voltage);
pr_notice("curr_vsel = %x\n", vsel);

if (!vdd->pmic_info->vsel_to_uv) {
pr_warning("PMIC function to convert vsel to voltage"
"in uV not registerd\n");
return -EINVAL;
}

*val = vdd->pmic_info->vsel_to_uv(vsel);
return 0;
}

static int nom_volt_debug_get(void *data, u64 *val)
{
struct omap_vdd_info *vdd = (struct omap_vdd_info *) data;

if (!vdd) {
pr_warning("Wrong paramater passed\n");
return -EINVAL;
}

*val = omap_voltage_get_nom_volt(&vdd->voltdm);

return 0;
}

DEFINE_SIMPLE_ATTRIBUTE(vp_volt_debug_fops, vp_volt_debug_get, NULL, "%llu\n");
DEFINE_SIMPLE_ATTRIBUTE(nom_volt_debug_fops, nom_volt_debug_get, NULL,
"%llu\n");
static void vp_latch_vsel(struct omap_vdd_info *vdd)
{
u32 vpconfig;
Expand Down Expand Up @@ -349,7 +390,32 @@ static void __init vdd_debugfs_init(struct omap_vdd_info *vdd)
pr_warning("%s: Unable to create debugfs directory for"
" vdd_%s\n", __func__, vdd->voltdm.name);
vdd->debug_dir = NULL;
return;
}

(void) debugfs_create_x16("vp_errorgain", S_IRUGO, vdd->debug_dir,
&(vdd->vp_reg.vpconfig_errorgain));
(void) debugfs_create_x16("vp_smpswaittimemin", S_IRUGO,
vdd->debug_dir,
&(vdd->vp_reg.vstepmin_smpswaittimemin));
(void) debugfs_create_x8("vp_stepmin", S_IRUGO, vdd->debug_dir,
&(vdd->vp_reg.vstepmin_stepmin));
(void) debugfs_create_x16("vp_smpswaittimemax", S_IRUGO,
vdd->debug_dir,
&(vdd->vp_reg.vstepmax_smpswaittimemax));
(void) debugfs_create_x8("vp_stepmax", S_IRUGO, vdd->debug_dir,
&(vdd->vp_reg.vstepmax_stepmax));
(void) debugfs_create_x8("vp_vddmax", S_IRUGO, vdd->debug_dir,
&(vdd->vp_reg.vlimitto_vddmax));
(void) debugfs_create_x8("vp_vddmin", S_IRUGO, vdd->debug_dir,
&(vdd->vp_reg.vlimitto_vddmin));
(void) debugfs_create_x16("vp_timeout", S_IRUGO, vdd->debug_dir,
&(vdd->vp_reg.vlimitto_timeout));
(void) debugfs_create_file("curr_vp_volt", S_IRUGO, vdd->debug_dir,
(void *) vdd, &vp_volt_debug_fops);
(void) debugfs_create_file("curr_nominal_volt", S_IRUGO,
vdd->debug_dir, (void *) vdd,
&nom_volt_debug_fops);
}

/* Voltage scale and accessory APIs */
Expand Down

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