diff options
| author | Sevak Arakelyan <sevaka@synopsys.com> | 2018-01-24 17:41:48 +0400 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-03-13 10:47:47 +0200 |
| commit | 6f80b6de0ecf65077b53c86967c714d42f4299e0 (patch) | |
| tree | 05f46180122561844154729d607cf997cd627445 /drivers/usb/dwc2/params.c | |
| parent | 391f8081d20bf1fcffc5556f94f3cf75c4d14e01 (diff) | |
usb: dwc2: Add core parameters for LPM support
Add lpm, lpm_clock_gating, besl, hird_threshold_en and hird_threshold
core parameters. These will indicate LPM and LPM Errata support
as well as chosen L1 sleeping mode for the core and PHY.
Signed-off-by: Sevak Arakelyan <sevaka@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc2/params.c')
| -rw-r--r-- | drivers/usb/dwc2/params.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c index f0f877c4528d..827f7f81a27c 100644 --- a/drivers/usb/dwc2/params.c +++ b/drivers/usb/dwc2/params.c @@ -279,6 +279,11 @@ static void dwc2_set_default_params(struct dwc2_hsotg *hsotg) p->uframe_sched = true; p->external_id_pin_ctl = false; p->hibernation = false; + p->lpm = true; + p->lpm_clock_gating = true; + p->besl = true; + p->hird_threshold_en = true; + p->hird_threshold = 4; p->max_packet_count = hw->max_packet_count; p->max_transfer_size = hw->max_transfer_size; p->ahbcfg = GAHBCFG_HBSTLEN_INCR << GAHBCFG_HBSTLEN_SHIFT; @@ -529,6 +534,13 @@ static void dwc2_check_params(struct dwc2_hsotg *hsotg) CHECK_BOOL(i2c_enable, hw->i2c_enable); CHECK_BOOL(acg_enable, hw->acg_enable); CHECK_BOOL(reload_ctl, (hsotg->hw_params.snpsid > DWC2_CORE_REV_2_92a)); + CHECK_BOOL(lpm, (hsotg->hw_params.snpsid >= DWC2_CORE_REV_2_80a)); + CHECK_BOOL(lpm, hw->lpm_mode); + CHECK_BOOL(lpm_clock_gating, hsotg->params.lpm); + CHECK_BOOL(besl, hsotg->params.lpm); + CHECK_BOOL(besl, (hsotg->hw_params.snpsid >= DWC2_CORE_REV_3_00a)); + CHECK_BOOL(hird_threshold_en, hsotg->params.lpm); + CHECK_RANGE(hird_threshold, 0, hsotg->params.besl ? 12 : 7, 0); CHECK_RANGE(max_packet_count, 15, hw->max_packet_count, hw->max_packet_count); @@ -707,6 +719,7 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg) hw->i2c_enable = !!(hwcfg3 & GHWCFG3_I2C); hw->total_fifo_size = (hwcfg3 & GHWCFG3_DFIFO_DEPTH_MASK) >> GHWCFG3_DFIFO_DEPTH_SHIFT; + hw->lpm_mode = !!(hwcfg3 & GHWCFG3_OTG_LPM_EN); /* hwcfg4 */ hw->en_multiple_tx_fifo = !!(hwcfg4 & GHWCFG4_DED_FIFO_EN); |