usb: dwc2: Enable power down

Enable the power down option based on the core capability.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com>
Signed-off-by: Artur Petrosyan <arturp@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index daf0f9ac714917a327d2ebb8e8bd599a1bc7ee20..6c7588a2f485a2b4dec8be9b092c1aabf85fdc7d 100644 (file)
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -252,6 +252,20 @@ static void dwc2_set_param_tx_fifo_sizes(struct dwc2_hsotg *hsotg)
                p->g_tx_fifo_size[i] = depth_average;
 }
 
+static void dwc2_set_param_power_down(struct dwc2_hsotg *hsotg)
+{
+       int val;
+
+       if (hsotg->hw_params.hibernation)
+               val = 2;
+       else if (hsotg->hw_params.power_optimized)
+               val = 1;
+       else
+               val = 0;
+
+       hsotg->params.power_down = val;
+}
+
 /**
  * dwc2_set_default_params() - Set all core parameters to their
  * auto-detected default values.
@@ -266,6 +280,7 @@ static void dwc2_set_default_params(struct dwc2_hsotg *hsotg)
        dwc2_set_param_phy_type(hsotg);
        dwc2_set_param_speed(hsotg);
        dwc2_set_param_phy_utmi_width(hsotg);
+       dwc2_set_param_power_down(hsotg);
        p->phy_ulpi_ddr = false;
        p->phy_ulpi_ext_vbus = false;
 
@@ -278,7 +293,6 @@ static void dwc2_set_default_params(struct dwc2_hsotg *hsotg)
        p->reload_ctl = (hw->snpsid >= DWC2_CORE_REV_2_92a);
        p->uframe_sched = true;
        p->external_id_pin_ctl = false;
-       p->power_down = false;
        p->lpm = true;
        p->lpm_clock_gating = true;
        p->besl = true;