diff options
| author | Vardan Mikayelyan <mvardan@synopsys.com> | 2016-11-14 19:17:03 -0800 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-11-18 13:54:50 +0200 |
| commit | 38e9002b85672352f8693c82192c8029586dd86d (patch) | |
| tree | 115f261b377c5a6aaadeac62167df603d1cb7f0f /drivers/usb/dwc2/hcd.c | |
| parent | 552d940f0bea0c010615b45ed7c64e7b3b103e6a (diff) | |
usb: dwc2: gadget: Add new core parameter for low speed
Added new core param for low speed, which can be used only when SNPSID
is equal to DWC2_CORE_FS_IOT. When LS mode is enabled, we are
restricting ep types and providing to upper layer only INTR and CTRL
endpoints.
Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc2/hcd.c')
| -rw-r--r-- | drivers/usb/dwc2/hcd.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index 2f807cff27e2..fb7f8e9784ee 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -230,9 +230,10 @@ static int dwc2_phy_init(struct dwc2_hsotg *hsotg, bool select_phy) u32 usbcfg; int retval = 0; - if (hsotg->params.speed == DWC2_SPEED_PARAM_FULL && + if ((hsotg->params.speed == DWC2_SPEED_PARAM_FULL || + hsotg->params.speed == DWC2_SPEED_PARAM_LOW) && hsotg->params.phy_type == DWC2_PHY_TYPE_PARAM_FS) { - /* If FS mode with FS PHY */ + /* If FS/LS mode with FS/LS PHY */ retval = dwc2_fs_phy_init(hsotg, select_phy); if (retval) return retval; @@ -2277,7 +2278,8 @@ static void dwc2_core_host_init(struct dwc2_hsotg *hsotg) /* Initialize Host Configuration Register */ dwc2_init_fs_ls_pclk_sel(hsotg); - if (hsotg->params.speed == DWC2_SPEED_PARAM_FULL) { + if (hsotg->params.speed == DWC2_SPEED_PARAM_FULL || + hsotg->params.speed == DWC2_SPEED_PARAM_LOW) { hcfg = dwc2_readl(hsotg->regs + HCFG); hcfg |= HCFG_FSLSSUPP; dwc2_writel(hcfg, hsotg->regs + HCFG); |