diff options
| author |   Jules Maselbas <jmaselbas@kalray.eu> | 2019-04-05 15:35:31 +0200 |
|---|---|---|
| committer |   Felipe Balbi <felipe.balbi@linux.intel.com> | 2019-05-03 09:13:48 +0300 |
| commit | 707d80f0a3c5fb58e61404277f6b103955fac294 (patch) | |
| tree | afc62240db7e7cc7135c4bc4bb0edcbfb01a52c2 /drivers/usb/dwc2 | |
| parent | usb: dwc2: gadget: Remove duplicated phy init (diff) | |
| download | linux-dev-707d80f0a3c5fb58e61404277f6b103955fac294.tar.xz linux-dev-707d80f0a3c5fb58e61404277f6b103955fac294.zip | |
usb: dwc2: gadget: Replace phyif with phy_utmi_width
The phy utmi width information is already set in hsotg params,
phyif is only used in few places and I don't see any reason to
not use hsotg's params.
Moreover the utmi width was being forced to 16 bits by platform
initialization which doesn't take in account HW configuration.
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Jules Maselbas <jmaselbas@kalray.eu>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc2')
| -rw-r--r-- | drivers/usb/dwc2/core.h | 2 | ||||
| -rw-r--r-- | drivers/usb/dwc2/gadget.c | 20 | ||||
| -rw-r--r-- | drivers/usb/dwc2/platform.c | 5 |
3 files changed, 15 insertions, 12 deletions
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h index 764c78ebee28..8e3edf10d76d 100644 --- a/drivers/usb/dwc2/core.h +++ b/drivers/usb/dwc2/core.h @@ -871,7 +871,6 @@ struct dwc2_hregs_backup { * removed once all SoCs support usb transceiver. * @supplies: Definition of USB power supplies * @vbus_supply: Regulator supplying vbus. - * @phyif: PHY interface width * @lock: Spinlock that protects all the driver data structures * @priv: Stores a pointer to the struct usb_hcd * @queuing_high_bandwidth: True if multiple packets of a high-bandwidth @@ -1056,7 +1055,6 @@ struct dwc2_hsotg { struct dwc2_hsotg_plat *plat; struct regulator_bulk_data supplies[DWC2_NUM_SUPPLIES]; struct regulator *vbus_supply; - u32 phyif; spinlock_t lock; void *priv; diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 9b737c4e8f50..614f8c34d759 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -3314,20 +3314,28 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg, /* keep other bits untouched (so e.g. forced modes are not lost) */ usbcfg = dwc2_readl(hsotg, GUSBCFG); + /* remove the HNP/SRP */ usbcfg &= ~(GUSBCFG_TOUTCAL_MASK | GUSBCFG_PHYIF16 | GUSBCFG_SRPCAP | - GUSBCFG_HNPCAP | GUSBCFG_USBTRDTIM_MASK); + GUSBCFG_HNPCAP); + usbcfg |= GUSBCFG_TOUTCAL(7); if (hsotg->params.phy_type == DWC2_PHY_TYPE_PARAM_FS && (hsotg->params.speed == DWC2_SPEED_PARAM_FULL || hsotg->params.speed == DWC2_SPEED_PARAM_LOW)) { /* FS/LS Dedicated Transceiver Interface */ usbcfg |= GUSBCFG_PHYSEL; - } else { - /* set the PLL on, remove the HNP/SRP and set the PHY */ - val = (hsotg->phyif == GUSBCFG_PHYIF8) ? 9 : 5; - usbcfg |= hsotg->phyif | GUSBCFG_TOUTCAL(7) | - (val << GUSBCFG_USBTRDTIM_SHIFT); + } else if (hsotg->params.phy_type == DWC2_PHY_TYPE_PARAM_UTMI) { + if (hsotg->params.phy_utmi_width == 16) + usbcfg |= GUSBCFG_PHYIF16; + + /* Set turnaround time */ + usbcfg &= ~GUSBCFG_USBTRDTIM_MASK; + if (hsotg->params.phy_utmi_width == 16) + usbcfg |= 5 << GUSBCFG_USBTRDTIM_SHIFT; + else + usbcfg |= 9 << GUSBCFG_USBTRDTIM_SHIFT; } + dwc2_writel(hsotg, usbcfg, GUSBCFG); dwc2_hsotg_init_fifo(hsotg); diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c index c01fa8ffc0c8..d10a7f8daec3 100644 --- a/drivers/usb/dwc2/platform.c +++ b/drivers/usb/dwc2/platform.c @@ -230,9 +230,6 @@ static int dwc2_lowlevel_hw_init(struct dwc2_hsotg *hsotg) reset_control_deassert(hsotg->reset_ecc); - /* Set default UTMI width */ - hsotg->phyif = GUSBCFG_PHYIF16; - /* * Attempt to find a generic PHY, then look for an old style * USB PHY and then fall back to pdata @@ -280,7 +277,7 @@ static int dwc2_lowlevel_hw_init(struct dwc2_hsotg *hsotg) * width is 8-bit and set the phyif appropriately. */ if (phy_get_bus_width(hsotg->phy) == 8) - hsotg->phyif = GUSBCFG_PHYIF8; + hsotg->params.phy_utmi_width = 8; } /* Clock */ |