diff mbox

[v7,17/22] mfd: omap-usb-host: clean up omap_usbhs_init()

Message ID 1358422231-24736-18-git-send-email-rogerq@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Roger Quadros Jan. 17, 2013, 11:30 a.m. UTC 
We split initializing revision 1 and revision 2 into different
functions. Initialization is now done dynamically so that only
the number of ports available on the system are initialized.

Signed-off-by: Roger Quadros <rogerq@ti.com>
---
 drivers/mfd/omap-usb-host.c |  122 +++++++++++++++++++++++++-----------------
 1 files changed, 73 insertions(+), 49 deletions(-)

Comments

Felipe Balbi Jan. 17, 2013, 11:48 a.m. UTC | #1 
Hi,

On Thu, Jan 17, 2013 at 01:30:26PM +0200, Roger Quadros wrote:
> +	if (is_omap_usbhs_rev1(omap))
> +		reg = omap_usbhs_rev1_hostconfig(omap, reg);
> +	else if (is_omap_usbhs_rev2(omap))
> +		reg = omap_usbhs_rev2_hostconfig(omap, reg);

Any way you could maybe:

rev = omap_usbhs_revision(omap)
switch(rev) {
case REV1:
	foo();
	break;
case REV2:
	bar();
	break;
default:	/* highest revision */
	baz();
}

could be done in a later patch however.
Roger Quadros Jan. 17, 2013, 12:13 p.m. UTC | #2 
On 01/17/2013 01:48 PM, Felipe Balbi wrote:
> Hi,
> 
> On Thu, Jan 17, 2013 at 01:30:26PM +0200, Roger Quadros wrote:
>> +	if (is_omap_usbhs_rev1(omap))
>> +		reg = omap_usbhs_rev1_hostconfig(omap, reg);
>> +	else if (is_omap_usbhs_rev2(omap))
>> +		reg = omap_usbhs_rev2_hostconfig(omap, reg);
> 
> Any way you could maybe:
> 
> rev = omap_usbhs_revision(omap)
> switch(rev) {
> case REV1:
> 	foo();
> 	break;
> case REV2:
> 	bar();
> 	break;
> default:	/* highest revision */
> 	baz();
> }
> 
> could be done in a later patch however.
> 
I'll fix it in this series.

--
cheers,
-roger
diff mbox

Patch

diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index fcace6f..ecde38d 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -358,6 +358,75 @@  static int usbhs_runtime_suspend(struct device *dev)
 	return 0;
 }
 
+static unsigned omap_usbhs_rev1_hostconfig(struct usbhs_hcd_omap *omap,
+						unsigned reg)
+{
+	struct usbhs_omap_platform_data	*pdata = omap->pdata;
+	int i;
+
+	for (i = 0; i < omap->nports; i++) {
+		switch (pdata->port_mode[i]) {
+		case OMAP_USBHS_PORT_MODE_UNUSED:
+			reg &= ~(OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS << i);
+			break;
+		case OMAP_EHCI_PORT_MODE_PHY:
+			if (pdata->single_ulpi_bypass)
+				break;
+
+			if (i == 0)
+				reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
+			else
+				reg &= ~(OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS
+								<< (i-1));
+			break;
+		default:
+			if (pdata->single_ulpi_bypass)
+				break;
+
+			if (i == 0)
+				reg |= OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
+			else
+				reg |= OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS
+								<< (i-1);
+			break;
+		}
+	}
+
+	if (pdata->single_ulpi_bypass) {
+		/* bypass ULPI only if none of the ports use PHY mode */
+		reg |= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
+
+		for (i = 0; i < omap->nports; i++) {
+			if (is_ehci_phy_mode(pdata->port_mode[i])) {
+				reg &= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
+				break;
+			}
+		}
+	}
+
+	return reg;
+}
+
+static unsigned omap_usbhs_rev2_hostconfig(struct usbhs_hcd_omap *omap,
+						unsigned reg)
+{
+	struct usbhs_omap_platform_data	*pdata = omap->pdata;
+	int i;
+
+	for (i = 0; i < omap->nports; i++) {
+		/* Clear port mode fields for PHY mode */
+		reg &= ~(OMAP4_P1_MODE_CLEAR << 2 * i);
+
+		if (is_ehci_tll_mode(pdata->port_mode[i]) ||
+				(is_ohci_port(pdata->port_mode[i])))
+			reg |= OMAP4_P1_MODE_TLL << 2 * i;
+		else if (is_ehci_hsic_mode(pdata->port_mode[i]))
+			reg |= OMAP4_P1_MODE_HSIC << 2 * i;
+	}
+
+	return reg;
+}
+
 static void omap_usbhs_init(struct device *dev)
 {
 	struct usbhs_hcd_omap		*omap = dev_get_drvdata(dev);
@@ -389,55 +458,10 @@  static void omap_usbhs_init(struct device *dev)
 	reg |= OMAP4_UHH_HOSTCONFIG_APP_START_CLK;
 	reg &= ~OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN;
 
-	if (is_omap_usbhs_rev1(omap)) {
-		if (pdata->port_mode[0] == OMAP_USBHS_PORT_MODE_UNUSED)
-			reg &= ~OMAP_UHH_HOSTCONFIG_P1_CONNECT_STATUS;
-		if (pdata->port_mode[1] == OMAP_USBHS_PORT_MODE_UNUSED)
-			reg &= ~OMAP_UHH_HOSTCONFIG_P2_CONNECT_STATUS;
-		if (pdata->port_mode[2] == OMAP_USBHS_PORT_MODE_UNUSED)
-			reg &= ~OMAP_UHH_HOSTCONFIG_P3_CONNECT_STATUS;
-
-		/* Bypass the TLL module for PHY mode operation */
-		if (pdata->single_ulpi_bypass) {
-			dev_dbg(dev, "OMAP3 ES version <= ES2.1\n");
-			if (is_ehci_phy_mode(pdata->port_mode[0]) ||
-				is_ehci_phy_mode(pdata->port_mode[1]) ||
-					is_ehci_phy_mode(pdata->port_mode[2]))
-				reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
-			else
-				reg |= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
-		} else {
-			dev_dbg(dev, "OMAP3 ES version > ES2.1\n");
-			if (is_ehci_phy_mode(pdata->port_mode[0]))
-				reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
-			else
-				reg |= OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS;
-			if (is_ehci_phy_mode(pdata->port_mode[1]))
-				reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
-			else
-				reg |= OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS;
-			if (is_ehci_phy_mode(pdata->port_mode[2]))
-				reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
-			else
-				reg |= OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS;
-		}
-	} else if (is_omap_usbhs_rev2(omap)) {
-		/* Clear port mode fields for PHY mode*/
-		reg &= ~OMAP4_P1_MODE_CLEAR;
-		reg &= ~OMAP4_P2_MODE_CLEAR;
-
-		if (is_ehci_tll_mode(pdata->port_mode[0]) ||
-			(is_ohci_port(pdata->port_mode[0])))
-			reg |= OMAP4_P1_MODE_TLL;
-		else if (is_ehci_hsic_mode(pdata->port_mode[0]))
-			reg |= OMAP4_P1_MODE_HSIC;
-
-		if (is_ehci_tll_mode(pdata->port_mode[1]) ||
-			(is_ohci_port(pdata->port_mode[1])))
-			reg |= OMAP4_P2_MODE_TLL;
-		else if (is_ehci_hsic_mode(pdata->port_mode[1]))
-			reg |= OMAP4_P2_MODE_HSIC;
-	}
+	if (is_omap_usbhs_rev1(omap))
+		reg = omap_usbhs_rev1_hostconfig(omap, reg);
+	else if (is_omap_usbhs_rev2(omap))
+		reg = omap_usbhs_rev2_hostconfig(omap, reg);
 
 	usbhs_write(omap->uhh_base, OMAP_UHH_HOSTCONFIG, reg);
 	dev_dbg(dev, "UHH setup done, uhh_hostconfig=%x\n", reg);