in pmbus/max20730.c [107:294]
static ssize_t max20730_debugfs_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
int ret, len;
int *idxp = file->private_data;
int idx = *idxp;
struct max20730_debugfs_data *psu = to_psu(idxp, idx);
const struct pmbus_driver_info *info;
const struct max20730_data *data;
char tbuf[DEBUG_FS_DATA_MAX] = { 0 };
u16 val;
info = pmbus_get_driver_info(psu->client);
data = to_max20730_data(info);
switch (idx) {
case MAX20730_DEBUGFS_VOUT_MIN:
ret = VOLT_FROM_REG(data->mfr_voutmin * 10000);
len = scnprintf(tbuf, DEBUG_FS_DATA_MAX, "%d.%d\n",
ret / 10000, ret % 10000);
break;
case MAX20730_DEBUGFS_FREQUENCY:
val = (data->mfr_devset1 & MAX20730_MFR_DEVSET1_FSW_MASK)
>> MAX20730_MFR_DEVSET1_FSW_BIT_POS;
if (val == 0)
ret = 400;
else if (val == 1)
ret = 500;
else if (val == 2 || val == 3)
ret = 600;
else if (val == 4)
ret = 700;
else if (val == 5)
ret = 800;
else
ret = 900;
len = scnprintf(tbuf, DEBUG_FS_DATA_MAX, "%d\n", ret);
break;
case MAX20730_DEBUGFS_PG_DELAY:
val = (data->mfr_devset1 & MAX20730_MFR_DEVSET1_TSTAT_MASK)
>> MAX20730_MFR_DEVSET1_TSTAT_BIT_POS;
if (val == 0)
len = strlcpy(tbuf, "2000\n", DEBUG_FS_DATA_MAX);
else if (val == 1)
len = strlcpy(tbuf, "125\n", DEBUG_FS_DATA_MAX);
else if (val == 2)
len = strlcpy(tbuf, "62.5\n", DEBUG_FS_DATA_MAX);
else
len = strlcpy(tbuf, "32\n", DEBUG_FS_DATA_MAX);
break;
case MAX20730_DEBUGFS_INTERNAL_GAIN:
val = (data->mfr_devset1 & MAX20730_MFR_DEVSET1_RGAIN_MASK)
>> MAX20730_MFR_DEVSET1_RGAIN_BIT_POS;
if (data->id == max20734) {
/* AN6209 */
if (val == 0)
len = strlcpy(tbuf, "0.8\n", DEBUG_FS_DATA_MAX);
else if (val == 1)
len = strlcpy(tbuf, "3.2\n", DEBUG_FS_DATA_MAX);
else if (val == 2)
len = strlcpy(tbuf, "1.6\n", DEBUG_FS_DATA_MAX);
else
len = strlcpy(tbuf, "6.4\n", DEBUG_FS_DATA_MAX);
} else if (data->id == max20730 || data->id == max20710) {
/* AN6042 or AN6140 */
if (val == 0)
len = strlcpy(tbuf, "0.9\n", DEBUG_FS_DATA_MAX);
else if (val == 1)
len = strlcpy(tbuf, "3.6\n", DEBUG_FS_DATA_MAX);
else if (val == 2)
len = strlcpy(tbuf, "1.8\n", DEBUG_FS_DATA_MAX);
else
len = strlcpy(tbuf, "7.2\n", DEBUG_FS_DATA_MAX);
} else if (data->id == max20743) {
/* AN6042 */
if (val == 0)
len = strlcpy(tbuf, "0.45\n", DEBUG_FS_DATA_MAX);
else if (val == 1)
len = strlcpy(tbuf, "1.8\n", DEBUG_FS_DATA_MAX);
else if (val == 2)
len = strlcpy(tbuf, "0.9\n", DEBUG_FS_DATA_MAX);
else
len = strlcpy(tbuf, "3.6\n", DEBUG_FS_DATA_MAX);
} else {
len = strlcpy(tbuf, "Not supported\n", DEBUG_FS_DATA_MAX);
}
break;
case MAX20730_DEBUGFS_BOOT_VOLTAGE:
val = (data->mfr_devset1 & MAX20730_MFR_DEVSET1_VBOOT_MASK)
>> MAX20730_MFR_DEVSET1_VBOOT_BIT_POS;
if (val == 0)
len = strlcpy(tbuf, "0.6484\n", DEBUG_FS_DATA_MAX);
else if (val == 1)
len = strlcpy(tbuf, "0.8984\n", DEBUG_FS_DATA_MAX);
else if (val == 2)
len = strlcpy(tbuf, "1.0\n", DEBUG_FS_DATA_MAX);
else
len = strlcpy(tbuf, "Invalid\n", DEBUG_FS_DATA_MAX);
break;
case MAX20730_DEBUGFS_OUT_V_RAMP_RATE:
val = (data->mfr_devset2 & MAX20730_MFR_DEVSET2_VRATE)
>> MAX20730_MFR_DEVSET2_VRATE_BIT_POS;
if (val == 0)
len = strlcpy(tbuf, "4\n", DEBUG_FS_DATA_MAX);
else if (val == 1)
len = strlcpy(tbuf, "2\n", DEBUG_FS_DATA_MAX);
else if (val == 2)
len = strlcpy(tbuf, "1\n", DEBUG_FS_DATA_MAX);
else
len = strlcpy(tbuf, "Invalid\n", DEBUG_FS_DATA_MAX);
break;
case MAX20730_DEBUGFS_OC_PROTECT_MODE:
ret = (data->mfr_devset2 & MAX20730_MFR_DEVSET2_OCPM_MASK)
>> MAX20730_MFR_DEVSET2_OCPM_BIT_POS;
len = scnprintf(tbuf, DEBUG_FS_DATA_MAX, "%d\n", ret);
break;
case MAX20730_DEBUGFS_SS_TIMING:
val = (data->mfr_devset2 & MAX20730_MFR_DEVSET2_SS_MASK)
>> MAX20730_MFR_DEVSET2_SS_BIT_POS;
if (val == 0)
len = strlcpy(tbuf, "0.75\n", DEBUG_FS_DATA_MAX);
else if (val == 1)
len = strlcpy(tbuf, "1.5\n", DEBUG_FS_DATA_MAX);
else if (val == 2)
len = strlcpy(tbuf, "3\n", DEBUG_FS_DATA_MAX);
else
len = strlcpy(tbuf, "6\n", DEBUG_FS_DATA_MAX);
break;
case MAX20730_DEBUGFS_IMAX:
ret = (data->mfr_devset2 & MAX20730_MFR_DEVSET2_IMAX_MASK)
>> MAX20730_MFR_DEVSET2_IMAX_BIT_POS;
len = scnprintf(tbuf, DEBUG_FS_DATA_MAX, "%d\n", ret);
break;
case MAX20730_DEBUGFS_OPERATION:
ret = i2c_smbus_read_byte_data(psu->client, PMBUS_OPERATION);
if (ret < 0)
return ret;
len = scnprintf(tbuf, DEBUG_FS_DATA_MAX, "%d\n", ret);
break;
case MAX20730_DEBUGFS_ON_OFF_CONFIG:
ret = i2c_smbus_read_byte_data(psu->client, PMBUS_ON_OFF_CONFIG);
if (ret < 0)
return ret;
len = scnprintf(tbuf, DEBUG_FS_DATA_MAX, "%d\n", ret);
break;
case MAX20730_DEBUGFS_SMBALERT_MASK:
ret = i2c_smbus_read_word_data(psu->client,
PMBUS_SMB_ALERT_MASK);
if (ret < 0)
return ret;
len = scnprintf(tbuf, DEBUG_FS_DATA_MAX, "%d\n", ret);
break;
case MAX20730_DEBUGFS_VOUT_MODE:
ret = i2c_smbus_read_byte_data(psu->client, PMBUS_VOUT_MODE);
if (ret < 0)
return ret;
len = scnprintf(tbuf, DEBUG_FS_DATA_MAX, "%d\n", ret);
break;
case MAX20730_DEBUGFS_VOUT_COMMAND:
ret = i2c_smbus_read_word_data(psu->client, PMBUS_VOUT_COMMAND);
if (ret < 0)
return ret;
ret = VOLT_FROM_REG(ret * 10000);
len = scnprintf(tbuf, DEBUG_FS_DATA_MAX,
"%d.%d\n", ret / 10000, ret % 10000);
break;
case MAX20730_DEBUGFS_VOUT_MAX:
ret = i2c_smbus_read_word_data(psu->client, PMBUS_VOUT_MAX);
if (ret < 0)
return ret;
ret = VOLT_FROM_REG(ret * 10000);
len = scnprintf(tbuf, DEBUG_FS_DATA_MAX,
"%d.%d\n", ret / 10000, ret % 10000);
break;
default:
len = strlcpy(tbuf, "Invalid\n", DEBUG_FS_DATA_MAX);
}
return simple_read_from_buffer(buf, count, ppos, tbuf, len);
}