/**
* dtvtuner_pm_dev_tuner_power_off() - power off dtvtuner pm device.
* @drvdata: [IN] driver data
*
* Return codes
* 0 - Success
*/
static int dtvtuner_pm_dev_tuner_power_off(
struct dtvtuner_pm_drvdata *drvdata
)
{
int ret = 0;
struct dtvtuner_pm_platform_data *pfdata =
drvdata->pdev->dev.platform_data;
msleep(D_DTVTUNER_DEVICE_RST_WAITTIME);
dtvtuner_pm_dev_gpio_put(pfdata->gpio_rst, 0);
msleep(D_DTVTUNER_DEVICE_RST_WAITTIME);
if (!IS_ERR_OR_NULL(reg_cfg)) {
dev_info(&drvdata->pdev->dev, "regulator_disable call\n");
ret = regulator_disable(reg_cfg);
if (ret) {
dev_err(&drvdata->pdev->dev, "regulator_disable error ret[%d]\n", ret);
}
regulator_put(reg_cfg);
reg_cfg = NULL;
}
dev_info(&drvdata->pdev->dev, "PowerOff\n");
return 0;
}
/**
* dtvtuner_pm_dev_tuner_HW_reset() - dtvtuner HW reset.
* @drvdata: [IN] driver data
*
* Return codes
* 0 - Success
*/
static int dtvtuner_pm_dev_tuner_HW_reset(
struct dtvtuner_pm_drvdata *drvdata
)
{
struct dtvtuner_pm_platform_data *pfdata =
drvdata->pdev->dev.platform_data;
// reset HW(H)
dtvtuner_pm_dev_gpio_put(pfdata->gpio_rst, 1);
dev_info(&drvdata->pdev->dev, "HW reset(H)\n");
msleep(D_DTVTUNER_DEVICE_RST_WAITTIME);
return 0;
}
static int dtvtuner_pm_dev_tuner_power_on(
struct dtvtuner_pm_drvdata *drvdata
)
{
int ret = 0;
struct dtvtuner_pm_platform_data *pfdata =
drvdata->pdev->dev.platform_data;
// power on
reg_cfg = regulator_get(NULL, pfdata->regulator_id);
if (IS_ERR(reg_cfg)) {
ret = PTR_ERR(reg_cfg);
dev_err(&drvdata->pdev->dev, "regulator_get error[%d]\n", ret);
goto out;
}
ret = regulator_set_voltage(reg_cfg, 1200000, 1400000);
if (ret) {
dev_err(&drvdata->pdev->dev, "regulator_set_voltage error ret[%d]\n", ret);
goto regulator_free;
}
ret = regulator_set_optimum_mode(reg_cfg, 150000);
if (ret < 0) {
dev_err(&drvdata->pdev->dev, "regulator_set_optimum_mode error ret[%d]\n", ret);
goto regulator_free;
}
ret = regulator_enable(reg_cfg);
if (ret) {
dev_err(&drvdata->pdev->dev, "regulator_enable error ret[%d]\n", ret);
goto regulator_free;
}
dev_info(&drvdata->pdev->dev, "PowerOn success\n");
// reset HW(L)
dtvtuner_pm_dev_gpio_put(pfdata->gpio_rst, 0);
dev_info(&drvdata->pdev->dev, "HW reset(L)\n");
msleep(D_DTVTUNER_DEVICE_RST_WAITTIME);
return 0;
regulator_free:
regulator_put(reg_cfg);
reg_cfg=NULL;
out:
return ret;
}