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Commit a56a0878 authored by Andrey Filippov's avatar Andrey Filippov
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exported read/write bit fields, bit fields defines

parent bbd9ad73
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drivers/misc/ltc3589.c
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...@@ -18,7 +18,6 @@ ...@@ -18,7 +18,6 @@
*! along with this program. If not, see <http://www.gnu.org/licenses/>. *! along with this program. If not, see <http://www.gnu.org/licenses/>.
*/ */
#include <linux/i2c.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/module.h> #include <linux/module.h>
...@@ -26,7 +25,7 @@ ...@@ -26,7 +25,7 @@
#include <linux/mutex.h> #include <linux/mutex.h>
#include <linux/string.h> #include <linux/string.h>
#include <linux/of.h> #include <linux/of.h>
#include <linux/math64.h> #include <linux/i2c/ltc3589.h>
#define DRV_VERSION "1.0" #define DRV_VERSION "1.0"
#define SYSFS_PERMISSIONS 0644 /* default permissions for sysfs files */ #define SYSFS_PERMISSIONS 0644 /* default permissions for sysfs files */
...@@ -39,107 +38,6 @@ ...@@ -39,107 +38,6 @@
#define LAST_REG 0x33 #define LAST_REG 0x33
#define AWE_SCR1 0x07ff
#define AWE_SCR1_MODE_SD1 0x0703
#define AWE_SCR1_MODE_SD2 0x070c
#define AWE_SCR1_MODE_SD3 0x0730
#define AWE_SCR1_MODE_BB 0x0740
#define AWE_OVEN 0x10ff
#define AWE_OVEN_EN_SD1 0x1001
#define AWE_OVEN_EN_SD2 0x1002
#define AWE_OVEN_EN_SD3 0x1004
#define AWE_OVEN_EN_BB 0x1008
#define AWE_OVEN_EN_LDO2 0x1010
#define AWE_OVEN_EN_LDO3 0x1020
#define AWE_OVEN_EN_LDO4 0x1040
#define AWE_OVEN_ONLY 0x1080
#define AWE_SCR2 0x12ff
#define AWE_SCR2_NOWAIT_SD1 0x1201
#define AWE_SCR2_NOWAIT_SD2 0x1202
#define AWE_SCR2_NOWAIT_SD3 0x1204
#define AWE_SCR2_NOWAIT_BB 0x1208
#define AWE_SCR2_NOWAIT_LDO2 0x1210
#define AWE_SCR2_NOWAIT_LDO3 0x1220
#define AWE_SCR2_NOWAIT_LDO4 0x1240
#define AWE_SCR2_PGOOD_SHTDN_INH 0x1280
#define AWE_VCCR 0x20ff
#define AWE_VCCR_SLEW_SD1 0x2001 /* self clearing bit */
#define AWE_VCCR_REF_SEL_SD1 0x2002
#define AWE_VCCR_SLEW_SD2 0x2004 /* self clearing bit */
#define AWE_VCCR_REF_SEL_SD2 0x2008
#define AWE_VCCR_SLEW_SD3 0x2010 /* self clearing bit */
#define AWE_VCCR_REF_SEL_SD3 0x2020
#define AWE_VCCR_SLEW_LDO2 0x2040 /* self clearing bit */
#define AWE_VCCR_REF_SEL_LDO2 0x2080
#define AWE_CLIRQ 0x21ff
#define AWE_B1DTV1 0x23ff
#define AWE_B1DTV1_REF 0x231f
#define AWE_B1DTV1_PGMASK 0x2320
#define AWE_B1DTV1_DVDT 0x23c0
#define AWE_B1DTV2 0x24ff
#define AWE_B1DTV2_REF 0x241f
#define AWE_B1DTV2_CLKRATE 0x2420
#define AWE_B1DTV2_PHASE 0x2440
#define AWE_B1DTV2_KEEP_ALIVE 0x2480
#define AWE_VRRCR 0x25ff
#define AWE_VRRCR_SD1 0x2503
#define AWE_VRRCR_SD2 0x250c
#define AWE_VRRCR_SD3 0x2530
#define AWE_VRRCR_LDO2 0x25c0
#define AWE_B2DTV1 0x26ff
#define AWE_B2DTV1_REF 0x261f
#define AWE_B2DTV1_PGMASK 0x2620
#define AWE_B2DTV2 0x27ff
#define AWE_B2DTV2_REF 0x271f
#define AWE_B2DTV2_CLKRATE 0x2720
#define AWE_B2DTV2_PHASE 0x2740
#define AWE_B2DTV2_KEEP_ALIVE 0x2780
#define AWE_B3DTV1 0x29ff
#define AWE_B3DTV1_REF 0x291f
#define AWE_B3DTV1_PGMASK 0x2920
#define AWE_B3DTV2 0x2aff
#define AWE_B3DTV2_REF 0x2a1f
#define AWE_B3DTV2_CLKRATE 0x2a20
#define AWE_B3DTV2_PHASE 0x2a40
#define AWE_B3DTV2_KEEP_ALIVE 0x2a80
#define AWE_L2DTV1 0x32ff
#define AWE_L2DTV1_REF 0x321f
#define AWE_L2DTV1_PGMASK 0x3220
#define AWE_L2DTV1_KEEP_ALIVE 0x3280
#define AWE_L2DTV2 0x33ff
#define AWE_L2DTV2_REF 0x331f
#define AWE_L2DTV2_REF_LDO4 0x3360
#define AWE_L2DTV2_MODE_LDO4 0x3380
#define AWE_IRQSTAT 0x02ff
#define AWE_IRQSTAT_PGOOD_TIMOUT 0x0208
#define AWE_IRQSTAT_NEAR_UV 0x0210
#define AWE_IRQSTAT_HARD_UV 0x0220
#define AWE_IRQSTAT_NEAR_THERM 0x0240
#define AWE_IRQSTAT_HARD_THERM 0x0280
#define AWE_PGSTAT 0x13ff
#define AWE_PGSTAT_LDO1 0x1301
#define AWE_PGSTAT_SD1 0x1302
#define AWE_PGSTAT_SD2 0x1304
#define AWE_PGSTAT_SD3 0x1308
#define AWE_PGSTAT_BB 0x1310
#define AWE_PGSTAT_LDO2 0x1320
#define AWE_PGSTAT_LDO3 0x1340
#define AWE_PGSTAT_LDO4 0x1380
struct ltc3589_cache_t { struct ltc3589_cache_t {
u8 flags; u8 flags;
...@@ -163,56 +61,56 @@ struct named_fields_t { ...@@ -163,56 +61,56 @@ struct named_fields_t {
}; };
static const struct named_fields_t status_fields[]={ static const struct named_fields_t status_fields[]={
{"power_good", AWE_PGSTAT}, {"power_good", LTC3589_AWE_PGSTAT},
{"pgood_ldo1", AWE_PGSTAT_LDO1}, {"pgood_ldo1", LTC3589_AWE_PGSTAT_LDO1},
{"pgood_sd1", AWE_PGSTAT_SD1}, {"pgood_sd1", LTC3589_AWE_PGSTAT_SD1},
{"pgood_sd2", AWE_PGSTAT_SD2}, {"pgood_sd2", LTC3589_AWE_PGSTAT_SD2},
{"pgood_sd3", AWE_PGSTAT_SD3}, {"pgood_sd3", LTC3589_AWE_PGSTAT_SD3},
{"pgood_bb", AWE_PGSTAT_BB}, {"pgood_bb", LTC3589_AWE_PGSTAT_BB},
{"pgood_ldo2", AWE_PGSTAT_LDO2}, {"pgood_ldo2", LTC3589_AWE_PGSTAT_LDO2},
{"pgood_ldo3", AWE_PGSTAT_LDO3}, {"pgood_ldo3", LTC3589_AWE_PGSTAT_LDO3},
{"pgood_ldo4", AWE_PGSTAT_LDO4}, {"pgood_ldo4", LTC3589_AWE_PGSTAT_LDO4},
{"irqstat", AWE_IRQSTAT}, {"irqstat", LTC3589_AWE_IRQSTAT},
{"irqstat_pgoot_timeout",AWE_IRQSTAT_PGOOD_TIMOUT}, {"irqstat_pgoot_timeout",LTC3589_AWE_IRQSTAT_PGOOD_TIMOUT},
{"irqstat_near_uv", AWE_IRQSTAT_NEAR_UV}, {"irqstat_near_uv", LTC3589_AWE_IRQSTAT_NEAR_UV},
{"irqstat_hard_uv", AWE_IRQSTAT_HARD_UV}, {"irqstat_hard_uv", LTC3589_AWE_IRQSTAT_HARD_UV},
{"irqstat_near_therm", AWE_IRQSTAT_NEAR_THERM}, {"irqstat_near_therm", LTC3589_AWE_IRQSTAT_NEAR_THERM},
{"irqstat_hard_therm", AWE_IRQSTAT_HARD_THERM}, {"irqstat_hard_therm", LTC3589_AWE_IRQSTAT_HARD_THERM},
}; };
static const struct named_fields_t named_fields[]={ static const struct named_fields_t named_fields[]={
{"ref1_sd1", AWE_B1DTV1_REF}, {"ref1_sd1", LTC3589_AWE_B1DTV1_REF},
{"ref2_sd1", AWE_B1DTV2_REF}, {"ref2_sd1", LTC3589_AWE_B1DTV2_REF},
{"ref1_sd2", AWE_B2DTV1_REF}, {"ref1_sd2", LTC3589_AWE_B2DTV1_REF},
{"ref2_sd2", AWE_B2DTV2_REF}, {"ref2_sd2", LTC3589_AWE_B2DTV2_REF},
{"ref1_sd3", AWE_B3DTV1_REF}, {"ref1_sd3", LTC3589_AWE_B3DTV1_REF},
{"ref2_sd3", AWE_B3DTV2_REF}, {"ref2_sd3", LTC3589_AWE_B3DTV2_REF},
{"ref1_ldo2", AWE_L2DTV1_REF}, {"ref1_ldo2", LTC3589_AWE_L2DTV1_REF},
{"ref2_ldo2", AWE_L2DTV2_REF}, {"ref2_ldo2", LTC3589_AWE_L2DTV2_REF},
{"ref_ldo4", AWE_B1DTV1_REF}, {"ref_ldo4", LTC3589_AWE_B1DTV1_REF},
{"dv_dt_sd1", AWE_B1DTV1_DVDT}, {"dv_dt_sd1", LTC3589_AWE_B1DTV1_DVDT},
{"pgood_mask_sd1", AWE_B1DTV1_PGMASK}, {"pgood_mask_sd1", LTC3589_AWE_B1DTV1_PGMASK},
{"pgood_mask_sd2", AWE_B2DTV1_PGMASK}, {"pgood_mask_sd2", LTC3589_AWE_B2DTV1_PGMASK},
{"pgood_mask_sd3", AWE_B3DTV1_PGMASK}, {"pgood_mask_sd3", LTC3589_AWE_B3DTV1_PGMASK},
{"pgood_mask_ldo21",AWE_L2DTV1_PGMASK}, {"pgood_mask_ldo21",LTC3589_AWE_L2DTV1_PGMASK},
{"clock_rate_sd1", AWE_B1DTV2_CLKRATE}, {"clock_rate_sd1", LTC3589_AWE_B1DTV2_CLKRATE},
{"clock_rate_sd2", AWE_B2DTV2_CLKRATE}, {"clock_rate_sd2", LTC3589_AWE_B2DTV2_CLKRATE},
{"clock_rate_sd3", AWE_B3DTV2_CLKRATE}, {"clock_rate_sd3", LTC3589_AWE_B3DTV2_CLKRATE},
{"clock_phase_sd1", AWE_B1DTV2_PHASE}, {"clock_phase_sd1", LTC3589_AWE_B1DTV2_PHASE},
{"clock_phase_sd2", AWE_B2DTV2_PHASE}, {"clock_phase_sd2", LTC3589_AWE_B2DTV2_PHASE},
{"clock_phase_sd3", AWE_B3DTV2_PHASE}, {"clock_phase_sd3", LTC3589_AWE_B3DTV2_PHASE},
{"keep_alive_sd1", AWE_B1DTV2_KEEP_ALIVE}, {"keep_alive_sd1", LTC3589_AWE_B1DTV2_KEEP_ALIVE},
{"keep_alive_sd2", AWE_B2DTV2_KEEP_ALIVE}, {"keep_alive_sd2", LTC3589_AWE_B2DTV2_KEEP_ALIVE},
{"keep_alive_sd3", AWE_B3DTV2_KEEP_ALIVE}, {"keep_alive_sd3", LTC3589_AWE_B3DTV2_KEEP_ALIVE},
{"keep_alive_ldo2", AWE_L2DTV1_KEEP_ALIVE}, {"keep_alive_ldo2", LTC3589_AWE_L2DTV1_KEEP_ALIVE},
{"slew_rate_sd1", AWE_VRRCR_SD1}, {"slew_rate_sd1", LTC3589_AWE_VRRCR_SD1},
{"slew_rate_sd2", AWE_VRRCR_SD2}, {"slew_rate_sd2", LTC3589_AWE_VRRCR_SD2},
{"slew_rate_sd3", AWE_VRRCR_SD3}, {"slew_rate_sd3", LTC3589_AWE_VRRCR_SD3},
{"slew_rate_ldo2", AWE_VRRCR_LDO2}, {"slew_rate_ldo2", LTC3589_AWE_VRRCR_LDO2},
{"oven_ldo4", AWE_L2DTV2_MODE_LDO4}, {"oven_ldo4", LTC3589_AWE_L2DTV2_MODE_LDO4},
{"oven_only", AWE_OVEN_ONLY}, {"oven_only", LTC3589_AWE_OVEN_ONLY},
}; };
static const int volatile_registers[]={AWE_IRQSTAT_PGOOD_TIMOUT, AWE_PGSTAT_LDO1, AWE_VCCR,-1}; static const int volatile_registers[]={LTC3589_AWE_IRQSTAT_PGOOD_TIMOUT, LTC3589_AWE_PGSTAT_LDO1, LTC3589_AWE_VCCR,-1};
static const char * chn_names[]={"SD1","SD2","SD3","BB","LDO1","LDO2","LDO3","LDO4"}; static const char * chn_names[]={"SD1","SD2","SD3","BB","LDO1","LDO2","LDO3","LDO4"};
static const char * modes[]={"continuous","burst","pulse_skip","invalid"}; static const char * modes[]={"continuous","burst","pulse_skip","invalid"};
static const char * pwr_states[]={"power_off","power_on"}; static const char * pwr_states[]={"power_off","power_on"};
...@@ -277,6 +175,18 @@ static void ltc3589_init_of(struct i2c_client *client); ...@@ -277,6 +175,18 @@ static void ltc3589_init_of(struct i2c_client *client);
static int ltc3589_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id); static int ltc3589_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id);
static int ltc3589_i2c_remove(struct i2c_client *client); static int ltc3589_i2c_remove(struct i2c_client *client);
int read_field_ltc3589 (struct i2c_client *client, u32 awe)
{
return read_field (client, awe);
}
EXPORT_SYMBOL_GPL(read_field_ltc3589);
int write_field_ltc3589 (struct i2c_client *client, u8 data, u32 awe)
{
return write_field (client, data, awe);
}
EXPORT_SYMBOL_GPL(write_field_ltc3589);
/* raw access to i2c registers, need to set address (9 bits) first, then r/w data */ /* raw access to i2c registers, need to set address (9 bits) first, then r/w data */
static DEVICE_ATTR(invalidate_cache, SYSFS_PERMISSIONS & SYSFS_WRITEONLY, NULL, invalidate_cache_store); static DEVICE_ATTR(invalidate_cache, SYSFS_PERMISSIONS & SYSFS_WRITEONLY, NULL, invalidate_cache_store);
...@@ -588,7 +498,7 @@ static ssize_t power_wait_on_off_show (struct device *dev, struct device_attribu ...@@ -588,7 +498,7 @@ static ssize_t power_wait_on_off_show (struct device *dev, struct device_attribu
char * cp=buf; char * cp=buf;
u32 awe; u32 awe;
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
awe= ((strcmp(attr->attr.name,wait_states[0])==0) || (strcmp(attr->attr.name,wait_states[1])==0))?AWE_SCR2:AWE_OVEN; awe= ((strcmp(attr->attr.name,wait_states[0])==0) || (strcmp(attr->attr.name,wait_states[1])==0))?LTC3589_AWE_SCR2:LTC3589_AWE_OVEN;
invert=((strcmp(attr->attr.name,pwr_states[0])==0) || (strcmp(attr->attr.name,wait_states[0])==0))?0xff:0; invert=((strcmp(attr->attr.name,pwr_states[0])==0) || (strcmp(attr->attr.name,wait_states[0])==0))?0xff:0;
if (((rc=read_field(client,awe)))<0) return rc; if (((rc=read_field(client,awe)))<0) return rc;
rc=((rc & 0xf) | 0x10 | ((rc & 0x70)<<1)) ^ invert; rc=((rc & 0xf) | 0x10 | ((rc & 0x70)<<1)) ^ invert;
...@@ -605,7 +515,7 @@ static ssize_t power_wait_on_off_store(struct device *dev, struct device_attribu ...@@ -605,7 +515,7 @@ static ssize_t power_wait_on_off_store(struct device *dev, struct device_attribu
int rc,mask,data; int rc,mask,data;
u32 awe; u32 awe;
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
awe= ((strcmp(attr->attr.name,wait_states[0])==0) || (strcmp(attr->attr.name,wait_states[1])==0))?AWE_SCR2:AWE_OVEN; awe= ((strcmp(attr->attr.name,wait_states[0])==0) || (strcmp(attr->attr.name,wait_states[1])==0))?LTC3589_AWE_SCR2:LTC3589_AWE_OVEN;
data=((strcmp(attr->attr.name,pwr_states[0])==0) || (strcmp(attr->attr.name,wait_states[0])==0))?0:0xff; data=((strcmp(attr->attr.name,pwr_states[0])==0) || (strcmp(attr->attr.name,wait_states[0])==0))?0:0xff;
mask=read_channel_mask(buf); mask=read_channel_mask(buf);
mask=(mask & 0xf) | ((mask >> 1) & 0x70); mask=(mask & 0xf) | ((mask >> 1) & 0x70);
...@@ -618,7 +528,7 @@ static ssize_t pgood_timeout_inhibit_show (struct device *dev, struct device_att ...@@ -618,7 +528,7 @@ static ssize_t pgood_timeout_inhibit_show (struct device *dev, struct device_att
{ {
int rc; int rc;
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
if (((rc=read_field(client,AWE_SCR2_PGOOD_SHTDN_INH)))<0) return rc; if (((rc=read_field(client,LTC3589_AWE_SCR2_PGOOD_SHTDN_INH)))<0) return rc;
return sprintf(buf, "%d\n",rc); return sprintf(buf, "%d\n",rc);
} }
static ssize_t pgood_timeout_inhibit_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) static ssize_t pgood_timeout_inhibit_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
...@@ -626,7 +536,7 @@ static ssize_t pgood_timeout_inhibit_store(struct device *dev, struct device_att ...@@ -626,7 +536,7 @@ static ssize_t pgood_timeout_inhibit_store(struct device *dev, struct device_att
int rc,data; int rc,data;
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
sscanf(buf, "%d", &data); sscanf(buf, "%d", &data);
if (((rc=write_field(client,data?1:0,AWE_SCR2_PGOOD_SHTDN_INH)))<0) return rc; if (((rc=write_field(client,data?1:0,LTC3589_AWE_SCR2_PGOOD_SHTDN_INH)))<0) return rc;
return count; return count;
} }
...@@ -635,7 +545,7 @@ static ssize_t mode_show (struct device *dev, struct device_attribute *attr, cha ...@@ -635,7 +545,7 @@ static ssize_t mode_show (struct device *dev, struct device_attribute *attr, cha
int rc,m,i; int rc,m,i;
char * cp=buf; char * cp=buf;
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
if (((rc=read_field(client,AWE_SCR1)))<0) return rc; if (((rc=read_field(client,LTC3589_AWE_SCR1)))<0) return rc;
for (m=0;m<ARRAY_SIZE(modes);m++) if (strcmp(attr->attr.name,modes[m])==0) break; for (m=0;m<ARRAY_SIZE(modes);m++) if (strcmp(attr->attr.name,modes[m])==0) break;
if (m>=ARRAY_SIZE(modes)) return -EINVAL; if (m>=ARRAY_SIZE(modes)) return -EINVAL;
for (i=0;i<4;i++) if (((rc>>(2*i)) & 3) == m) { for (i=0;i<4;i++) if (((rc>>(2*i)) & 3) == m) {
...@@ -656,7 +566,7 @@ static ssize_t mode_store(struct device *dev, struct device_attribute *attr, con ...@@ -656,7 +566,7 @@ static ssize_t mode_store(struct device *dev, struct device_attribute *attr, con
if (m>=ARRAY_SIZE(modes)) return -EINVAL; if (m>=ARRAY_SIZE(modes)) return -EINVAL;
mask=read_channel_mask(buf); mask=read_channel_mask(buf);
mask=((mask & 1)? 3:0) | ((mask & 2)? 0xc:0) | ((mask & 4)? 0x30:0) | ((mask & 8)? 0x40:0); mask=((mask & 1)? 3:0) | ((mask & 2)? 0xc:0) | ((mask & 4)? 0x30:0) | ((mask & 8)? 0x40:0);
awe = (AWE_SCR1 & 0xff00) | mask; awe = (LTC3589_AWE_SCR1 & 0xff00) | mask;
data= m | (m<<2) | (m<<4) | (m<<6); data= m | (m<<2) | (m<<4) | (m<<6);
if (((rc=write_field (client, data, awe)))<0) return rc; if (((rc=write_field (client, data, awe)))<0) return rc;
return count; return count;
...@@ -667,7 +577,7 @@ static ssize_t reference_select_show (struct device *dev, struct device_attribut ...@@ -667,7 +577,7 @@ static ssize_t reference_select_show (struct device *dev, struct device_attribut
int rc,m,i,chn; int rc,m,i,chn;
char * cp=buf; char * cp=buf;
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
if (((rc=read_field(client,AWE_VCCR)))<0) return rc; if (((rc=read_field(client,LTC3589_AWE_VCCR)))<0) return rc;
for (m=0;m<ARRAY_SIZE(reference_sel);m++) if (strcmp(attr->attr.name,reference_sel[m])==0) break; for (m=0;m<ARRAY_SIZE(reference_sel);m++) if (strcmp(attr->attr.name,reference_sel[m])==0) break;
if (m>=ARRAY_SIZE(reference_sel)) return -EINVAL; if (m>=ARRAY_SIZE(reference_sel)) return -EINVAL;
for (i=0;i<4;i++) if (((rc>>(2*i+1)) & 1)==m){ for (i=0;i<4;i++) if (((rc>>(2*i+1)) & 1)==m){
...@@ -695,7 +605,7 @@ static ssize_t reference_select_store(struct device *dev, struct device_attribut ...@@ -695,7 +605,7 @@ static ssize_t reference_select_store(struct device *dev, struct device_attribut
mask=read_channel_mask(buf); mask=read_channel_mask(buf);
mask=((mask & 1)? 2:0) | ((mask & 2)? 0x8:0) | ((mask & 4)? 0x20:0) | ((mask & 0x20)? 0x80:0); mask=((mask & 1)? 2:0) | ((mask & 2)? 0x8:0) | ((mask & 4)? 0x20:0) | ((mask & 0x20)? 0x80:0);
awe = (AWE_VCCR & 0xff00) | mask; awe = (LTC3589_AWE_VCCR & 0xff00) | mask;
data= m?0xff:0; data= m?0xff:0;
if (((rc=write_field (client, data, awe)))<0) return rc; if (((rc=write_field (client, data, awe)))<0) return rc;
return count; return count;
...@@ -706,7 +616,7 @@ static ssize_t reference_select_go_show (struct device *dev, struct device_attri ...@@ -706,7 +616,7 @@ static ssize_t reference_select_go_show (struct device *dev, struct device_attri
int rc,i,chn; int rc,i,chn;
char * cp=buf; char * cp=buf;
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
if (((rc=read_field(client,AWE_VCCR)))<0) return rc; if (((rc=read_field(client,LTC3589_AWE_VCCR)))<0) return rc;
for (i=0;i<4;i++) if ((rc>>(2*i)) & 1){ for (i=0;i<4;i++) if ((rc>>(2*i)) & 1){
chn=i; chn=i;
if (i==3) chn=5 ; /* LDO2 */ if (i==3) chn=5 ; /* LDO2 */
...@@ -724,7 +634,7 @@ static ssize_t reference_select_go_store(struct device *dev, struct device_attri ...@@ -724,7 +634,7 @@ static ssize_t reference_select_go_store(struct device *dev, struct device_attri
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
mask=read_channel_mask(buf); mask=read_channel_mask(buf);
mask=((mask & 1)? 1:0) | ((mask & 2)? 0x4:0) | ((mask & 4)? 0x10:0) | ((mask & 0x20)? 0x40:0); mask=((mask & 1)? 1:0) | ((mask & 2)? 0x4:0) | ((mask & 4)? 0x10:0) | ((mask & 0x20)? 0x40:0);
awe = (AWE_VCCR & 0xff00) | mask; awe = (LTC3589_AWE_VCCR & 0xff00) | mask;
data= 0xff; data= 0xff;
if (((rc=write_field (client, data, awe)))<0) return rc; if (((rc=write_field (client, data, awe)))<0) return rc;
return count; return count;
...@@ -741,7 +651,7 @@ static ssize_t field_store(struct device *dev, struct device_attribute *attr, co ...@@ -741,7 +651,7 @@ static ssize_t field_store(struct device *dev, struct device_attribute *attr, co
int data; int data;
u32 awe; u32 awe;
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
for (i=0;i<ARRAY_SIZE(named_fields);i++) if (strcmp(attr->attr.name,named_fields[i].name==0)) { for (i=0;i<ARRAY_SIZE(named_fields);i++) if (strcmp(attr->attr.name,named_fields[i].name)==0) {
awe=named_fields[i].awe; awe=named_fields[i].awe;
dev_dbg(dev,"i=%d, field name=%s awe=0x%04x\n", i, named_fields[i].name, (int) awe); dev_dbg(dev,"i=%d, field name=%s awe=0x%04x\n", i, named_fields[i].name, (int) awe);
break; break;
...@@ -788,7 +698,7 @@ static ssize_t irq_show (struct device *dev, struct device_attribute *attr, char ...@@ -788,7 +698,7 @@ static ssize_t irq_show (struct device *dev, struct device_attribute *attr, char
{ {
int rc; int rc;
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
if (((rc=read_field(client,AWE_IRQSTAT)))<0) return rc; if (((rc=read_field(client,LTC3589_AWE_IRQSTAT)))<0) return rc;
return sprintf(buf,"%d\n",rc); return sprintf(buf,"%d\n",rc);
} }
...@@ -797,13 +707,13 @@ static ssize_t irq_show_txt (struct device *dev, struct device_attribute *attr, ...@@ -797,13 +707,13 @@ static ssize_t irq_show_txt (struct device *dev, struct device_attribute *attr,
int rc; int rc;
char * cp=buf; char * cp=buf;
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
if (((rc=read_field(client,AWE_IRQSTAT)))<0) return rc; if (((rc=read_field(client,LTC3589_AWE_IRQSTAT)))<0) return rc;
buf += sprintf(buf,"0x%02x",rc); buf += sprintf(buf,"0x%02x",rc);
if (rc & AWE_IRQSTAT_PGOOD_TIMOUT) buf += sprintf(buf,"PGOOD timeout"); if (rc & LTC3589_AWE_IRQSTAT_PGOOD_TIMOUT) buf += sprintf(buf,"PGOOD timeout");
if (rc & AWE_IRQSTAT_NEAR_UV) buf += sprintf(buf,", Near undervoltage"); if (rc & LTC3589_AWE_IRQSTAT_NEAR_UV) buf += sprintf(buf,", Near undervoltage");
if (rc & AWE_IRQSTAT_HARD_UV) buf += sprintf(buf,", Hard undervoltage"); if (rc & LTC3589_AWE_IRQSTAT_HARD_UV) buf += sprintf(buf,", Hard undervoltage");
if (rc & AWE_IRQSTAT_NEAR_THERM) buf += sprintf(buf,", Near undervoltage"); if (rc & LTC3589_AWE_IRQSTAT_NEAR_THERM) buf += sprintf(buf,", Near undervoltage");
if (rc & AWE_IRQSTAT_HARD_THERM) buf += sprintf(buf,", Hard undervoltage"); if (rc & LTC3589_AWE_IRQSTAT_HARD_THERM) buf += sprintf(buf,", Hard undervoltage");
buf += sprintf(buf,"\n"); buf += sprintf(buf,"\n");
return buf-cp; return buf-cp;
} }
...@@ -812,7 +722,7 @@ static ssize_t irq_store(struct device *dev, struct device_attribute *attr, cons ...@@ -812,7 +722,7 @@ static ssize_t irq_store(struct device *dev, struct device_attribute *attr, cons
{ {
int rc; int rc;
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
if (((rc=write_field (client, 0, AWE_CLIRQ)))<0) return rc; if (((rc=write_field (client, 0, LTC3589_AWE_CLIRQ)))<0) return rc;
return count; return count;
} }
static ssize_t pwr_bad_good_show (struct device *dev, struct device_attribute *attr, char *buf) static ssize_t pwr_bad_good_show (struct device *dev, struct device_attribute *attr, char *buf)
...@@ -820,7 +730,7 @@ static ssize_t pwr_bad_good_show (struct device *dev, struct device_attribute *a ...@@ -820,7 +730,7 @@ static ssize_t pwr_bad_good_show (struct device *dev, struct device_attribute *a
int rc,i,pg; int rc,i,pg;
char * cp=buf; char * cp=buf;
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
if (((rc=read_field(client,AWE_PGSTAT)))<0) return rc; if (((rc=read_field(client,LTC3589_AWE_PGSTAT)))<0) return rc;
pg=(rc & 0xe0) | ((rc>>1) & 0xff) | ((rc << 4) & 0x10); pg=(rc & 0xe0) | ((rc>>1) & 0xff) | ((rc << 4) & 0x10);
if (strstr(attr->attr.name,"bad")){ if (strstr(attr->attr.name,"bad")){
...@@ -835,7 +745,7 @@ static int get_chn_mode(struct device *dev, char *buf, int chn) /* 0..3 */ ...@@ -835,7 +745,7 @@ static int get_chn_mode(struct device *dev, char *buf, int chn) /* 0..3 */
int rc; int rc;
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
if ((chn<0) || (chn>3)) return 0; if ((chn<0) || (chn>3)) return 0;
if (((rc=read_field(client,AWE_SCR1)))<0) return rc; if (((rc=read_field(client,LTC3589_AWE_SCR1)))<0) return rc;
return sprintf (buf,"%s",modes[(rc >> (chn<<1)) &3]); return sprintf (buf,"%s",modes[(rc >> (chn<<1)) &3]);
} }
static int get_chn_pwr(struct device *dev, char *buf, int chn) /* 0..7 */ static int get_chn_pwr(struct device *dev, char *buf, int chn) /* 0..7 */
...@@ -843,7 +753,7 @@ static int get_chn_pwr(struct device *dev, char *buf, int chn) /* 0..7 */ ...@@ -843,7 +753,7 @@ static int get_chn_pwr(struct device *dev, char *buf, int chn) /* 0..7 */
int rc; int rc;
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
if ((chn<0) || (chn>7)) return 0; if ((chn<0) || (chn>7)) return 0;
if (((rc=read_field(client,AWE_OVEN)))<0) return rc; if (((rc=read_field(client,LTC3589_AWE_OVEN)))<0) return rc;
rc=(rc & 0xf) | 0x10 | ((rc & 0x70)<<1); rc=(rc & 0xf) | 0x10 | ((rc & 0x70)<<1);
return sprintf (buf,"%s",pwr_states[(rc >> chn) & 1]); return sprintf (buf,"%s",pwr_states[(rc >> chn) & 1]);
} }
...@@ -852,7 +762,7 @@ static int get_chn_wait(struct device *dev, char *buf, int chn) /* 0..7 */ ...@@ -852,7 +762,7 @@ static int get_chn_wait(struct device *dev, char *buf, int chn) /* 0..7 */
int rc; int rc;
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
if ((chn<0) || (chn>7)) return 0; if ((chn<0) || (chn>7)) return 0;
if (((rc=read_field(client,AWE_SCR2)))<0) return rc; if (((rc=read_field(client,LTC3589_AWE_SCR2)))<0) return rc;
rc=(rc & 0xf) | 0x10 | ((rc & 0x70)<<1); rc=(rc & 0xf) | 0x10 | ((rc & 0x70)<<1);
return sprintf (buf,"%s",wait_states[(rc >> chn) & 1]); return sprintf (buf,"%s",wait_states[(rc >> chn) & 1]);
} }
...@@ -863,7 +773,7 @@ static int get_ref_sel_go(struct device *dev, char *buf, int chn) /* 0..7 */ ...@@ -863,7 +773,7 @@ static int get_ref_sel_go(struct device *dev, char *buf, int chn) /* 0..7 */
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
if ((chn<0) || ((chn>2) && (chn!=5))) return 0; if ((chn<0) || ((chn>2) && (chn!=5))) return 0;
if (chn==5) chn=3; if (chn==5) chn=3;
if (((rc=read_field(client,AWE_VCCR)))<0) return rc; if (((rc=read_field(client,LTC3589_AWE_VCCR)))<0) return rc;
rc =(rc >> (2*chn)) & 3; rc =(rc >> (2*chn)) & 3;
return sprintf (buf,"%s%s",reference_sel[(rc>>1)&1],(rc&1)?" (slewing)":""); return sprintf (buf,"%s%s",reference_sel[(rc>>1)&1],(rc&1)?" (slewing)":"");
} }
...@@ -1197,7 +1107,7 @@ static int ltc3589_i2c_probe(struct i2c_client *client, const struct i2c_device_ ...@@ -1197,7 +1107,7 @@ static int ltc3589_i2c_probe(struct i2c_client *client, const struct i2c_device_
int i,rc=0; int i,rc=0;
struct ltc3589_data_t *clientdata = NULL; struct ltc3589_data_t *clientdata = NULL;
/* initialize i2c ... */ /* initialize i2c ... */
if (read_field (client, AWE_IRQSTAT_PGOOD_TIMOUT)<0) { if (read_field (client, LTC3589_AWE_IRQSTAT_PGOOD_TIMOUT)<0) {
dev_err(&client->dev, "%s: chip not detected\n",id->name); dev_err(&client->dev, "%s: chip not detected\n",id->name);
return -EIO; return -EIO;
} }
......
include/linux/i2c/ltc3589.h 0 → 100644
View file @ a56a0878
/*!***************************************************************************
*! FILE NAME : ltc3589.c
*! DESCRIPTION: control of the Linear Technology LTC3589 8-channel voltage regulator
*! Copyright (C) 2013 Elphel, Inc.
*! -----------------------------------------------------------------------------**
*!
*! This program is free software: you can redistribute it and/or modify
*! it under the terms of the GNU General Public License as published by
*! the Free Software Foundation, either version 3 of the License, or
*! (at your option) any later version.
*!
*! This program is distributed in the hope that it will be useful,
*! but WITHOUT ANY WARRANTY; without even the implied warranty of
*! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
*! GNU General Public License for more details.
*!
*! You should have received a copy of the GNU General Public License
*! along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __LINUX_LTC3589_H
#define __LINUX_LTC3589_H
#include <linux/types.h>
#include <linux/device.h>
#include <linux/i2c.h>
int read_field_ltc3589 (struct i2c_client *client, u32 awe);
int write_field_ltc3589 (struct i2c_client *client, u8 data, u32 awe);
#define LTC3589_AWE_SCR1 0x07ff
#define LTC3589_AWE_SCR1_MODE_SD1 0x0703
#define LTC3589_AWE_SCR1_MODE_SD2 0x070c
#define LTC3589_AWE_SCR1_MODE_SD3 0x0730
#define LTC3589_AWE_SCR1_MODE_BB 0x0740
#define LTC3589_AWE_OVEN 0x10ff
#define LTC3589_AWE_OVEN_EN_SD1 0x1001
#define LTC3589_AWE_OVEN_EN_SD2 0x1002
#define LTC3589_AWE_OVEN_EN_SD3 0x1004
#define LTC3589_AWE_OVEN_EN_BB 0x1008
#define LTC3589_AWE_OVEN_EN_LDO2 0x1010
#define LTC3589_AWE_OVEN_EN_LDO3 0x1020
#define LTC3589_AWE_OVEN_EN_LDO4 0x1040
#define LTC3589_AWE_OVEN_ONLY 0x1080
#define LTC3589_AWE_SCR2 0x12ff
#define LTC3589_AWE_SCR2_NOWAIT_SD1 0x1201
#define LTC3589_AWE_SCR2_NOWAIT_SD2 0x1202
#define LTC3589_AWE_SCR2_NOWAIT_SD3 0x1204
#define LTC3589_AWE_SCR2_NOWAIT_BB 0x1208
#define LTC3589_AWE_SCR2_NOWAIT_LDO2 0x1210
#define LTC3589_AWE_SCR2_NOWAIT_LDO3 0x1220
#define LTC3589_AWE_SCR2_NOWAIT_LDO4 0x1240
#define LTC3589_AWE_SCR2_PGOOD_SHTDN_INH 0x1280
#define LTC3589_AWE_VCCR 0x20ff
#define LTC3589_AWE_VCCR_SLEW_SD1 0x2001 /* self clearing bit */
#define LTC3589_AWE_VCCR_REF_SEL_SD1 0x2002
#define LTC3589_AWE_VCCR_SLEW_SD2 0x2004 /* self clearing bit */
#define LTC3589_AWE_VCCR_REF_SEL_SD2 0x2008
#define LTC3589_AWE_VCCR_SLEW_SD3 0x2010 /* self clearing bit */
#define LTC3589_AWE_VCCR_REF_SEL_SD3 0x2020
#define LTC3589_AWE_VCCR_SLEW_LDO2 0x2040 /* self clearing bit */
#define LTC3589_AWE_VCCR_REF_SEL_LDO2 0x2080
#define LTC3589_AWE_CLIRQ 0x21ff
#define LTC3589_AWE_B1DTV1 0x23ff
#define LTC3589_AWE_B1DTV1_REF 0x231f
#define LTC3589_AWE_B1DTV1_PGMASK 0x2320
#define LTC3589_AWE_B1DTV1_DVDT 0x23c0
#define LTC3589_AWE_B1DTV2 0x24ff
#define LTC3589_AWE_B1DTV2_REF 0x241f
#define LTC3589_AWE_B1DTV2_CLKRATE 0x2420
#define LTC3589_AWE_B1DTV2_PHASE 0x2440
#define LTC3589_AWE_B1DTV2_KEEP_ALIVE 0x2480
#define LTC3589_AWE_VRRCR 0x25ff
#define LTC3589_AWE_VRRCR_SD1 0x2503
#define LTC3589_AWE_VRRCR_SD2 0x250c
#define LTC3589_AWE_VRRCR_SD3 0x2530
#define LTC3589_AWE_VRRCR_LDO2 0x25c0
#define LTC3589_AWE_B2DTV1 0x26ff
#define LTC3589_AWE_B2DTV1_REF 0x261f
#define LTC3589_AWE_B2DTV1_PGMASK 0x2620
#define LTC3589_AWE_B2DTV2 0x27ff
#define LTC3589_AWE_B2DTV2_REF 0x271f
#define LTC3589_AWE_B2DTV2_CLKRATE 0x2720
#define LTC3589_AWE_B2DTV2_PHASE 0x2740
#define LTC3589_AWE_B2DTV2_KEEP_ALIVE 0x2780
#define LTC3589_AWE_B3DTV1 0x29ff
#define LTC3589_AWE_B3DTV1_REF 0x291f
#define LTC3589_AWE_B3DTV1_PGMASK 0x2920
#define LTC3589_AWE_B3DTV2 0x2aff
#define LTC3589_AWE_B3DTV2_REF 0x2a1f
#define LTC3589_AWE_B3DTV2_CLKRATE 0x2a20
#define LTC3589_AWE_B3DTV2_PHASE 0x2a40
#define LTC3589_AWE_B3DTV2_KEEP_ALIVE 0x2a80
#define LTC3589_AWE_L2DTV1 0x32ff
#define LTC3589_AWE_L2DTV1_REF 0x321f
#define LTC3589_AWE_L2DTV1_PGMASK 0x3220
#define LTC3589_AWE_L2DTV1_KEEP_ALIVE 0x3280
#define LTC3589_AWE_L2DTV2 0x33ff
#define LTC3589_AWE_L2DTV2_REF 0x331f
#define LTC3589_AWE_L2DTV2_REF_LDO4 0x3360
#define LTC3589_AWE_L2DTV2_MODE_LDO4 0x3380
#define LTC3589_AWE_IRQSTAT 0x02ff
#define LTC3589_AWE_IRQSTAT_PGOOD_TIMOUT 0x0208
#define LTC3589_AWE_IRQSTAT_NEAR_UV 0x0210
#define LTC3589_AWE_IRQSTAT_HARD_UV 0x0220
#define LTC3589_AWE_IRQSTAT_NEAR_THERM 0x0240
#define LTC3589_AWE_IRQSTAT_HARD_THERM 0x0280
#define LTC3589_AWE_PGSTAT 0x13ff
#define LTC3589_AWE_PGSTAT_LDO1 0x1301
#define LTC3589_AWE_PGSTAT_SD1 0x1302
#define LTC3589_AWE_PGSTAT_SD2 0x1304
#define LTC3589_AWE_PGSTAT_SD3 0x1308
#define LTC3589_AWE_PGSTAT_BB 0x1310
#define LTC3589_AWE_PGSTAT_LDO2 0x1320
#define LTC3589_AWE_PGSTAT_LDO3 0x1340
#define LTC3589_AWE_PGSTAT_LDO4 0x1380
#endif /* __LINUX_LTC3589_H */
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