On 02/14/2014 12:07 PM, Lee Jones wrote:

quoted

Not all revisions have all the clocks so get the necessary clocks
based on hardware revision.

This should avoid un-necessary clk_get failure messages that were
observed earlier.

Be more strict and always fail on clk_get() error.

It might have been clearer if you'd broken these two pieces of
functionality changes into two different patches. In future it would
be preferred.

OK.

quoted

CC: Lee Jones <redacted>
CC: Samuel Ortiz <sameo-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Signed-off-by: Roger Quadros <redacted>
---
 drivers/mfd/omap-usb-host.c | 92 +++++++++++++++++++++++++++++++--------------
 1 file changed, 64 insertions(+), 28 deletions(-)

diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 0c3c9a0..60a3bed 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c

@@ -665,22 +665,41 @@ static int usbhs_omap_probe(struct platform_device *pdev)
 		goto err_mem;
 	}
 
-	need_logic_fck = false;
+	/* Set all clocks as invalid to begin with */
+	omap->ehci_logic_fck = omap->init_60m_fclk = ERR_PTR(-ENODEV);
+	omap->utmi_p1_gfclk = omap->utmi_p2_gfclk = ERR_PTR(-ENODEV);
+	omap->xclk60mhsp1_ck = omap->xclk60mhsp2_ck = ERR_PTR(-ENODEV);
+

For readability you should probably do these one per line.

OK.

quoted

 	for (i = 0; i < omap->nports; i++) {
-		if (is_ehci_phy_mode(i) || is_ehci_tll_mode(i) ||
-			is_ehci_hsic_mode(i))
-				need_logic_fck |= true;
+		omap->utmi_clk[i] = ERR_PTR(-ENODEV);
+		omap->hsic480m_clk[i] = ERR_PTR(-ENODEV);
+		omap->hsic60m_clk[i] = ERR_PTR(-ENODEV);
 	}
 
-	omap->ehci_logic_fck = ERR_PTR(-EINVAL);
-	if (need_logic_fck) {
-		omap->ehci_logic_fck = devm_clk_get(dev, "ehci_logic_fck");

Has this clock been renamed, or is it no longer required?

It is only for OMAP3 and it's actual name is "usbhost_120m_fck".
"ehci_logic_fck" is just an alias.

Perhaps you should be explicit in the commit log as to which clocks
you're removing.

quoted

-		if (IS_ERR(omap->ehci_logic_fck)) {
-			ret = PTR_ERR(omap->ehci_logic_fck);
-			dev_dbg(dev, "ehci_logic_fck failed:%d\n", ret);
+	/* for OMAP3 i.e. USBHS REV1 */
+	if (omap->usbhs_rev == OMAP_USBHS_REV1) {
+		need_logic_fck = false;
+		for (i = 0; i < omap->nports; i++) {
+			if (is_ehci_phy_mode(pdata->port_mode[i]) ||
+			    is_ehci_tll_mode(pdata->port_mode[i]) ||
+			    is_ehci_hsic_mode(pdata->port_mode[i]))
+
+				need_logic_fck |= true;
+		}
+
+		if (need_logic_fck) {
+			omap->ehci_logic_fck = clk_get(dev, "usbhost_120m_fck");

devm_clk_get()?

Indeed.

cheers,
-roger
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