diff options
| author |   Minas Harutyunyan <minas.harutyunyan@synopsys.com> | 2019-03-04 17:08:07 +0400 |
|---|---|---|
| committer |   Felipe Balbi <felipe.balbi@linux.intel.com> | 2019-05-03 09:13:49 +0300 |
| commit | 28b5c129ca6e585ec95c160ec4297bc6c6360b6f (patch) | |
| tree | e26c3944b0b2812c0be19d708af733e568a30f23 /drivers/usb | |
| parent | usb: dwc2: Fix channel disable flow (diff) | |
| download | linux-dev-28b5c129ca6e585ec95c160ec4297bc6c6360b6f.tar.xz linux-dev-28b5c129ca6e585ec95c160ec4297bc6c6360b6f.zip | |
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/usb')
| -rw-r--r-- | drivers/usb/dwc2/params.c | 23 |
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; |