static int __devinit pm8901_probe(struct platform_device *pdev)
{
int rc;
struct pm8901_platform_data *pdata = pdev->dev.platform_data;
const char *revision_name = "unknown";
struct pm8901_chip *pmic;
int revision;
if (pdata == NULL) {
pr_err("%s: No platform_data or IRQ.\n", __func__);
return -ENODEV;
}
pmic = kzalloc(sizeof *pmic, GFP_KERNEL);
if (pmic == NULL) {
pr_err("%s: kzalloc() failed.\n", __func__);
return -ENOMEM;
}
pmic->dev = &pdev->dev;
pm8901_drvdata.pm_chip_data = pmic;
platform_set_drvdata(pdev, &pm8901_drvdata);
/* Read PMIC chip revision */
rc = pm8901_readb(pmic->dev, PM8901_REG_REV, &pmic->revision);
if (rc)
pr_err("%s: Failed reading version register rc=%d.\n",
__func__, rc);
pr_info("%s: PMIC revision reg: %02X\n", __func__, pmic->revision);
revision = pm8xxx_get_revision(pmic->dev);
if (revision >= 0 && revision < ARRAY_SIZE(pm8901_rev_names))
revision_name = pm8901_rev_names[revision];
pr_info("%s: PMIC version: PM8901 rev %s\n", __func__, revision_name);
(void) memcpy((void *)&pmic->pdata, (const void *)pdata,
sizeof(pmic->pdata));
rc = pm8901_add_subdevices(pdata, pmic);
if (rc) {
pr_err("Cannot add subdevices rc=%d\n", rc);
goto err;
}
return 0;
err:
platform_set_drvdata(pdev, NULL);
kfree(pmic);
return rc;
}
static int pm8901_probe(struct platform_device *pdev)
{
int rc;
struct pm8901_platform_data *pdata = pdev->dev.platform_data;
struct pm8901_chip *pmic;
if (pdata == NULL) {
pr_err("%s: No platform_data or IRQ.\n", __func__);
return -ENODEV;
}
pmic = kzalloc(sizeof *pmic, GFP_KERNEL);
if (pmic == NULL) {
pr_err("%s: kzalloc() failed.\n", __func__);
return -ENOMEM;
}
pmic->dev = &pdev->dev;
pm8901_drvdata.pm_chip_data = pmic;
platform_set_drvdata(pdev, &pm8901_drvdata);
/* Read PMIC chip revision */
rc = pm8901_readb(pmic->dev, PM8901_REG_REV, &pmic->revision);
if (rc)
pr_err("%s: Failed reading version register rc=%d.\n",
__func__, rc);
pr_info("%s: PMIC REVISION = %X\n", __func__, pmic->revision);
(void) memcpy((void *)&pmic->pdata, (const void *)pdata,
sizeof(pmic->pdata));
rc = pm8901_add_subdevices(pdata, pmic);
if (rc) {
pr_err("Cannot add subdevices rc=%d\n", rc);
goto err;
}
//20120917. CR326086
rc = pm8xxx_preload_dVdd();
return 0;
err:
platform_set_drvdata(pdev, NULL);
kfree(pmic);
return rc;
}
static int __devinit pm8901_probe(struct platform_device *pdev)
{
int rc;
struct pm8901_platform_data *pdata = pdev->dev.platform_data;
const char *revision_name = "unknown";
struct pm8901_chip *pmic;
int revision;
if (pdata == NULL) {
pr_err("%s: No platform_data or IRQ.\n", __func__);
return -ENODEV;
}
pmic = kzalloc(sizeof *pmic, GFP_KERNEL);
if (pmic == NULL) {
pr_err("%s: kzalloc() failed.\n", __func__);
return -ENOMEM;
}
pmic->dev = &pdev->dev;
pm8901_drvdata.pm_chip_data = pmic;
platform_set_drvdata(pdev, &pm8901_drvdata);
/* Read PMIC chip revision */
rc = pm8901_readb(pmic->dev, PM8901_REG_REV, &pmic->revision);
if (rc)
pr_err("%s: Failed reading version register rc=%d.\n",
__func__, rc);
pr_info("%s: PMIC revision reg: %02X\n", __func__, pmic->revision);
revision = pm8xxx_get_revision(pmic->dev);
if (revision >= 0 && revision < ARRAY_SIZE(pm8901_rev_names))
revision_name = pm8901_rev_names[revision];
pr_info("%s: PMIC version: PM8901 rev %s\n", __func__, revision_name);
// This api is s/w workaround for PM8901's abnormal spike which could
// cause DDR problem on PCB. Because of the spike SS made new PCB for
// h/w workaround. This s/w workaround is for old PCBs. And If a target
// is new PCB, you should call a api to drop bypass voltage
// to 1.725 originally. But you don't need that here, bacause you've done
// that already at SBL3. So instead of calling api to drop bypass voltage
// here you just need to check if SBL3 bootloader includes the api.
// In other words this api has dependency with SBL3 change
if( pm8901_is_old_PCB_with_PM8901()==1 )
pm8901_preload_dVdd_old();
(void) memcpy((void *)&pmic->pdata, (const void *)pdata,
sizeof(pmic->pdata));
rc = pm8901_add_subdevices(pdata, pmic);
if (rc) {
pr_err("Cannot add subdevices rc=%d\n", rc);
goto err;
}
return 0;
err:
platform_set_drvdata(pdev, NULL);
kfree(pmic);
return rc;
}
