diff options
| author | Grigor Tovmasyan <Grigor.Tovmasyan@synopsys.com> | 2018-08-29 21:01:31 +0400 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-10-02 10:50:09 +0300 |
| commit | f3a61e4e033e808e7ac1239b151ec46f833fff4a (patch) | |
| tree | 839c4b41320e6e6f5d4a2c44015fc38b0ebddc53 | |
| parent | 392af0232640abf7acd12754515f8363c4c0df67 (diff) | |
| download | linux-f3a61e4e033e808e7ac1239b151ec46f833fff4a.tar.bz2 | |
usb: dwc2: gadget: Add parameters for GREFCLK register
Added ref_clk_per and sof_cnt_wkup_alert parameters in
dwc2_core_params struct and set default values.
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| -rw-r--r-- | drivers/usb/dwc2/core.h | 18 | ||||
| -rw-r--r-- | drivers/usb/dwc2/params.c | 2 |
2 files changed, 20 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h index 2678dc9d559b..655f5274e801 100644 --- a/drivers/usb/dwc2/core.h +++ b/drivers/usb/dwc2/core.h @@ -393,6 +393,20 @@ enum dwc2_ep0_state { * 0 - No * 1 - Yes * @hird_threshold: Value of BESL or HIRD Threshold. + * @ref_clk_per: Indicates in terms of pico seconds the period + * of ref_clk. + * 62500 - 16MHz + * 58823 - 17MHz + * 52083 - 19.2MHz + * 50000 - 20MHz + * 41666 - 24MHz + * 33333 - 30MHz (default) + * 25000 - 40MHz + * @sof_cnt_wkup_alert: Indicates in term of number of SOF's after which + * the controller should generate an interrupt if the + * device had been in L1 state until that period. + * This is used by SW to initiate Remote WakeUp in the + * controller so as to sync to the uF number from the host. * @activate_stm_fs_transceiver: Activate internal transceiver using GGPIO * register. * 0 - Deactivate the transceiver (default) @@ -472,6 +486,10 @@ struct dwc2_core_params { u32 max_transfer_size; u32 ahbcfg; + /* GREFCLK parameters */ + u32 ref_clk_per; + u16 sof_cnt_wkup_alert; + /* Host parameters */ bool host_dma; bool dma_desc_enable; diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c index dd3c10d537e2..d150984406ee 100644 --- a/drivers/usb/dwc2/params.c +++ b/drivers/usb/dwc2/params.c @@ -303,6 +303,8 @@ static void dwc2_set_default_params(struct dwc2_hsotg *hsotg) p->max_packet_count = hw->max_packet_count; p->max_transfer_size = hw->max_transfer_size; p->ahbcfg = GAHBCFG_HBSTLEN_INCR << GAHBCFG_HBSTLEN_SHIFT; + p->ref_clk_per = 33333; + p->sof_cnt_wkup_alert = 100; if ((hsotg->dr_mode == USB_DR_MODE_HOST) || (hsotg->dr_mode == USB_DR_MODE_OTG)) { |