USB: otg/ulpi: extend the generic ulpi driver.

1) Introduce ulpi specific flags for control of the ulpi phy
2) Extend the generic ulpi driver with support for Function and
Interface control of upli phy
3) Update the platforms using the generic ulpi driver with new ulpi
flags
4) Remove the otg control flags not in use

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 117 insertions, 10 deletions

diff --git a/drivers/usb/otg/ulpi.c b/drivers/usb/otg/ulpi.c
index ef7dbe4..ccc8195 100644
--- a/drivers/usb/otg/ulpi.c
+++ b/drivers/usb/otg/ulpi.c
@@ -37,25 +37,106 @@ static unsigned int ulpi_ids[] = {
 	ULPI_ID(0x0424, 0x0006),        /* SMSC USB3319 */
 };
 
-static int ulpi_set_flags(struct otg_transceiver *otg)
+static int ulpi_set_otg_flags(struct otg_transceiver *otg)
 {
-	unsigned int flags = 0;
+	unsigned int flags = ULPI_OTG_CTRL_DP_PULLDOWN |
+			     ULPI_OTG_CTRL_DM_PULLDOWN;
 
-	if (otg->flags & USB_OTG_PULLUP_ID)
+	if (otg->flags & ULPI_OTG_ID_PULLUP)
 		flags |= ULPI_OTG_CTRL_ID_PULLUP;
 
-	if (otg->flags & USB_OTG_PULLDOWN_DM)
-		flags |= ULPI_OTG_CTRL_DM_PULLDOWN;
+	/*
+	 * ULPI Specification rev.1.1 default
+	 * for Dp/DmPulldown is enabled.
+	 */
+	if (otg->flags & ULPI_OTG_DP_PULLDOWN_DIS)
+		flags &= ~ULPI_OTG_CTRL_DP_PULLDOWN;
 
-	if (otg->flags & USB_OTG_PULLDOWN_DP)
-		flags |= ULPI_OTG_CTRL_DP_PULLDOWN;
+	if (otg->flags & ULPI_OTG_DM_PULLDOWN_DIS)
+		flags &= ~ULPI_OTG_CTRL_DM_PULLDOWN;
 
-	if (otg->flags & USB_OTG_EXT_VBUS_INDICATOR)
+	if (otg->flags & ULPI_OTG_EXTVBUSIND)
 		flags |= ULPI_OTG_CTRL_EXTVBUSIND;
 
 	return otg_io_write(otg, flags, ULPI_OTG_CTRL);
 }
 
+static int ulpi_set_fc_flags(struct otg_transceiver *otg)
+{
+	unsigned int flags = 0;
+
+	/*
+	 * ULPI Specification rev.1.1 default
+	 * for XcvrSelect is Full Speed.
+	 */
+	if (otg->flags & ULPI_FC_HS)
+		flags |= ULPI_FUNC_CTRL_HIGH_SPEED;
+	else if (otg->flags & ULPI_FC_LS)
+		flags |= ULPI_FUNC_CTRL_LOW_SPEED;
+	else if (otg->flags & ULPI_FC_FS4LS)
+		flags |= ULPI_FUNC_CTRL_FS4LS;
+	else
+		flags |= ULPI_FUNC_CTRL_FULL_SPEED;
+
+	if (otg->flags & ULPI_FC_TERMSEL)
+		flags |= ULPI_FUNC_CTRL_TERMSELECT;
+
+	/*
+	 * ULPI Specification rev.1.1 default
+	 * for OpMode is Normal Operation.
+	 */
+	if (otg->flags & ULPI_FC_OP_NODRV)
+		flags |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING;
+	else if (otg->flags & ULPI_FC_OP_DIS_NRZI)
+		flags |= ULPI_FUNC_CTRL_OPMODE_DISABLE_NRZI;
+	else if (otg->flags & ULPI_FC_OP_NSYNC_NEOP)
+		flags |= ULPI_FUNC_CTRL_OPMODE_NOSYNC_NOEOP;
+	else
+		flags |= ULPI_FUNC_CTRL_OPMODE_NORMAL;
+
+	/*
+	 * ULPI Specification rev.1.1 default
+	 * for SuspendM is Powered.
+	 */
+	flags |= ULPI_FUNC_CTRL_SUSPENDM;
+
+	return otg_io_write(otg, flags, ULPI_FUNC_CTRL);
+}
+
+static int ulpi_set_ic_flags(struct otg_transceiver *otg)
+{
+	unsigned int flags = 0;
+
+	if (otg->flags & ULPI_IC_AUTORESUME)
+		flags |= ULPI_IFC_CTRL_AUTORESUME;
+
+	if (otg->flags & ULPI_IC_EXTVBUS_INDINV)
+		flags |= ULPI_IFC_CTRL_EXTERNAL_VBUS;
+
+	if (otg->flags & ULPI_IC_IND_PASSTHRU)
+		flags |= ULPI_IFC_CTRL_PASSTHRU;
+
+	if (otg->flags & ULPI_IC_PROTECT_DIS)
+		flags |= ULPI_IFC_CTRL_PROTECT_IFC_DISABLE;
+
+	return otg_io_write(otg, flags, ULPI_IFC_CTRL);
+}
+
+static int ulpi_set_flags(struct otg_transceiver *otg)
+{
+	int ret;
+
+	ret = ulpi_set_otg_flags(otg);
+	if (ret)
+		return ret;
+
+	ret = ulpi_set_ic_flags(otg);
+	if (ret)
+		return ret;
+
+	return ulpi_set_fc_flags(otg);
+}
+
 static int ulpi_init(struct otg_transceiver *otg)
 {
 	int i, vid, pid, ret;
@@ -80,6 +161,31 @@ static int ulpi_init(struct otg_transceiver *otg)
 	return -ENODEV;
 }
 
+static int ulpi_set_host(struct otg_transceiver *otg, struct usb_bus *host)
+{
+	unsigned int flags = otg_io_read(otg, ULPI_IFC_CTRL);
+
+	if (!host) {
+		otg->host = NULL;
+		return 0;
+	}
+
+	otg->host = host;
+
+	flags &= ~(ULPI_IFC_CTRL_6_PIN_SERIAL_MODE |
+		   ULPI_IFC_CTRL_3_PIN_SERIAL_MODE |
+		   ULPI_IFC_CTRL_CARKITMODE);
+
+	if (otg->flags & ULPI_IC_6PIN_SERIAL)
+		flags |= ULPI_IFC_CTRL_6_PIN_SERIAL_MODE;
+	else if (otg->flags & ULPI_IC_3PIN_SERIAL)
+		flags |= ULPI_IFC_CTRL_3_PIN_SERIAL_MODE;
+	else if (otg->flags & ULPI_IC_CARKIT)
+		flags |= ULPI_IFC_CTRL_CARKITMODE;
+
+	return otg_io_write(otg, flags, ULPI_IFC_CTRL);
+}
+
 static int ulpi_set_vbus(struct otg_transceiver *otg, bool on)
 {
 	unsigned int flags = otg_io_read(otg, ULPI_OTG_CTRL);
@@ -87,10 +193,10 @@ static int ulpi_set_vbus(struct otg_transceiver *otg, bool on)
 	flags &= ~(ULPI_OTG_CTRL_DRVVBUS | ULPI_OTG_CTRL_DRVVBUS_EXT);
 
 	if (on) {
-		if (otg->flags & USB_OTG_DRV_VBUS)
+		if (otg->flags & ULPI_OTG_DRVVBUS)
 			flags |= ULPI_OTG_CTRL_DRVVBUS;
 
-		if (otg->flags & USB_OTG_DRV_VBUS_EXT)
+		if (otg->flags & ULPI_OTG_DRVVBUS_EXT)
 			flags |= ULPI_OTG_CTRL_DRVVBUS_EXT;
 	}
 
@@ -111,6 +217,7 @@ otg_ulpi_create(struct otg_io_access_ops *ops,
 	otg->flags	= flags;
 	otg->io_ops	= ops;
 	otg->init	= ulpi_init;
+	otg->set_host	= ulpi_set_host;
 	otg->set_vbus	= ulpi_set_vbus;
 
 	return otg;