[PATCH 14/15] usb: dwc2: Enable power down

[Vardan Mikayelyan]

From: John Youn <johny...@synopsys.com>

Enable the power down option based on the core capability.

Signed-off-by: John Youn <johny...@synopsys.com>
Signed-off-by: Vardan Mikayelyan <mvar...@synopsys.com>
---
 drivers/usb/dwc2/params.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index baa76bf..9480b8f 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -238,6 +238,20 @@ 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.
@@ -252,6 +266,7 @@ 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;
 
@@ -263,7 +278,6 @@ 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->max_packet_count = hw->max_packet_count;
        p->max_transfer_size = hw->max_transfer_size;
        p->ahbcfg = GAHBCFG_HBSTLEN_INCR4 << GAHBCFG_HBSTLEN_SHIFT;
-- 
1.9.1

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