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authorMinas Harutyunyan <minas.harutyunyan@synopsys.com>2019-03-04 16:08:07 +0300
committerFelipe Balbi <felipe.balbi@linux.intel.com>2019-05-03 09:13:49 +0300
commit28b5c129ca6e585ec95c160ec4297bc6c6360b6f (patch)
treee26c3944b0b2812c0be19d708af733e568a30f23 /drivers
parent5799aecd64f2bb6c8175a2e86fbcb9e60d052221 (diff)
downloadlinux-28b5c129ca6e585ec95c160ec4297bc6c6360b6f.tar.xz
usb: dwc2: Set lpm mode parameters depend on HW configuration
If core not supported lpm, i.e. BCM2835 then confusing warnings seen in log. To avoid these warnings, added function dwc2_set_param_lpm() to set lpm and other lpm related parameters based on lpm support by core. Signed-off-by: Minas Harutyunyan <hminas@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/usb/dwc2/params.c23
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index 442113246cba..6900eea57526 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -285,6 +285,23 @@ static void dwc2_set_param_power_down(struct dwc2_hsotg *hsotg)
hsotg->params.power_down = val;
}
+static void dwc2_set_param_lpm(struct dwc2_hsotg *hsotg)
+{
+ struct dwc2_core_params *p = &hsotg->params;
+
+ p->lpm = hsotg->hw_params.lpm_mode;
+ if (p->lpm) {
+ p->lpm_clock_gating = true;
+ p->besl = true;
+ p->hird_threshold_en = true;
+ p->hird_threshold = 4;
+ } else {
+ p->lpm_clock_gating = false;
+ p->besl = false;
+ p->hird_threshold_en = false;
+ }
+}
+
/**
* dwc2_set_default_params() - Set all core parameters to their
* auto-detected default values.
@@ -303,6 +320,7 @@ static void dwc2_set_default_params(struct dwc2_hsotg *hsotg)
dwc2_set_param_speed(hsotg);
dwc2_set_param_phy_utmi_width(hsotg);
dwc2_set_param_power_down(hsotg);
+ dwc2_set_param_lpm(hsotg);
p->phy_ulpi_ddr = false;
p->phy_ulpi_ext_vbus = false;
@@ -315,11 +333,6 @@ 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->lpm = true;
- p->lpm_clock_gating = true;
- p->besl = true;
- p->hird_threshold_en = true;
- p->hird_threshold = 4;
p->ipg_isoc_en = false;
p->service_interval = false;
p->max_packet_count = hw->max_packet_count;