From 03ea6d6e9e1ff1b0222eb723eee5990d3511cc4d Mon Sep 17 00:00:00 2001 From: John Youn Date: Fri, 16 Feb 2018 14:12:28 +0400 Subject: [PATCH] usb: dwc2: Enable power down Enable the power down option based on the core capability. Signed-off-by: John Youn Signed-off-by: Vardan Mikayelyan Signed-off-by: Artur Petrosyan Signed-off-by: Grigor Tovmasyan Signed-off-by: Felipe Balbi --- 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 daf0f9ac7149..6c7588a2f485 100644 --- 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; -- 2.11.0