static int atomisp_suspend(struct device *dev)
{
struct atomisp_device *isp = (struct atomisp_device *)
dev_get_drvdata(dev);
int ret;
/*
* FIXME: Suspend is not supported by sensors. Abort if any video
* node was opened.
*/
if (isp->sw_contex.init == true)
return -EBUSY;
if (isp->sw_contex.isp_streaming) {
v4l2_err(&atomisp_dev,
"atomisp cannot suspend at this time.\n");
return -EINVAL;
}
/* save IUnit context */
atomisp_save_iunit_reg(isp);
/*Turn off the ISP d-phy */
ret = atomisp_ospm_dphy_down(isp);
if (ret)
v4l2_err(&atomisp_dev,
"fail to power off ISP\n");
else
pm_qos_update_request(&isp->pm_qos, PM_QOS_DEFAULT_VALUE);
return ret;
}
static int atomisp_runtime_suspend(struct device *dev)
{
struct atomisp_device *isp = (struct atomisp_device *)
dev_get_drvdata(dev);
int ret;
/* save IUnit context */
atomisp_save_iunit_reg(isp);
/*Turn off the ISP d-phy*/
ret = atomisp_ospm_dphy_down(isp);
if (!ret)
pm_qos_update_request(&isp->pm_qos, PM_QOS_DEFAULT_VALUE);
return ret;
}
static void atomisp_pci_shutdown(struct pci_dev *dev)
{
struct atomisp_device *isp = (struct atomisp_device *)
pci_get_drvdata(dev);
if (IS_ISP2400 && atomisp_mrfld_pre_power_down(isp))
return;
/*Turn off the ISP d-phy*/
if (atomisp_ospm_dphy_down(isp))
return;
pm_qos_update_request(&isp->pm_qos, PM_QOS_DEFAULT_VALUE);
if (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_VALLEYVIEW2)
pmu_nc_set_power_state(TNG_ISP_ISLAND, OSPM_ISLAND_DOWN,
MRFLD_ISPSSPM0);
};
static int atomisp_suspend(struct device *dev)
{
struct atomisp_device *isp = (struct atomisp_device *)
dev_get_drvdata(dev);
unsigned long flags;
int ret;
/* FIXME: currently only use subdev[0] in single stream mode */
struct atomisp_sub_device *isp_subdev = &isp->isp_subdev[0];
/*
* FIXME: Suspend is not supported by sensors. Abort if any video
* node was opened.
*/
if (atomisp_dev_users(isp))
return -EBUSY;
spin_lock_irqsave(&isp->lock, flags);
if (isp_subdev->streaming != ATOMISP_DEVICE_STREAMING_DISABLED) {
spin_unlock_irqrestore(&isp->lock, flags);
v4l2_err(&atomisp_dev,
"atomisp cannot suspend at this time.\n");
return -EINVAL;
}
spin_unlock_irqrestore(&isp->lock, flags);
/* Prepare for MRFLD IUNIT power down */
if (IS_ISP2400) {
ret = atomisp_mrfld_pre_power_down(isp);
if (ret)
return ret;
}
/*Turn off the ISP d-phy */
ret = atomisp_ospm_dphy_down(isp);
if (ret) {
dev_err(isp->dev, "fail to power off ISP\n");
return ret;
}
pm_qos_update_request(&isp->pm_qos, PM_QOS_DEFAULT_VALUE);
if (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_VALLEYVIEW2)
ret = pmu_nc_set_power_state(TNG_ISP_ISLAND, OSPM_ISLAND_DOWN,
MRFLD_ISPSSPM0);
return ret;
}
static int atomisp_runtime_suspend(struct device *dev)
{
struct atomisp_device *isp = (struct atomisp_device *)
dev_get_drvdata(dev);
int ret;
if (IS_ISP2400) {
ret = atomisp_mrfld_pre_power_down(isp);
if (ret)
return ret;
}
/*Turn off the ISP d-phy*/
ret = atomisp_ospm_dphy_down(isp);
if (ret)
return ret;
pm_qos_update_request(&isp->pm_qos, PM_QOS_DEFAULT_VALUE);
if (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_VALLEYVIEW2)
ret = pmu_nc_set_power_state(TNG_ISP_ISLAND, OSPM_ISLAND_DOWN,
MRFLD_ISPSSPM0);
return ret;
}
