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authorGeorge Cherian <george.cherian@ti.com>2014-07-16 18:37:07 +0530
committerFelipe Balbi <balbi@ti.com>2014-07-16 09:57:01 -0500
commitd2f0cf89ca2deca59cc4ca0c80c14100831428db (patch)
tree6446865fb8567184e64e860fb1284c97149c06d8 /drivers/usb
parent30fef1a97fb6551abb50b5208993726b878fe40f (diff)
downloadop-kernel-dev-d2f0cf89ca2deca59cc4ca0c80c14100831428db.zip
op-kernel-dev-d2f0cf89ca2deca59cc4ca0c80c14100831428db.tar.gz
usb: dwc3: omap: add dwc3_omap_set_utmi_mode() function
Move find and set the utmi mode to its own separate function. Improve code readability, decrease the dwc3_probe() size. Signed-off-by: George Cherian <george.cherian@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/dwc3/dwc3-omap.c44
1 files changed, 25 insertions, 19 deletions
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 22fca62..6a90b96 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -399,6 +399,30 @@ static void dwc3_omap_map_offset(struct dwc3_omap *omap)
}
}
+static void dwc3_omap_set_utmi_mode(struct dwc3_omap *omap)
+{
+ u32 reg;
+ struct device_node *node = omap->dev->of_node;
+ int utmi_mode = 0;
+
+ reg = dwc3_omap_read_utmi_status(omap);
+
+ of_property_read_u32(node, "utmi-mode", &utmi_mode);
+
+ switch (utmi_mode) {
+ case DWC3_OMAP_UTMI_MODE_SW:
+ reg |= USBOTGSS_UTMI_OTG_STATUS_SW_MODE;
+ break;
+ case DWC3_OMAP_UTMI_MODE_HW:
+ reg &= ~USBOTGSS_UTMI_OTG_STATUS_SW_MODE;
+ break;
+ default:
+ dev_dbg(omap->dev, "UNKNOWN utmi mode %d\n", utmi_mode);
+ }
+
+ dwc3_omap_write_utmi_status(omap, reg);
+}
+
static int dwc3_omap_probe(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
@@ -412,8 +436,6 @@ static int dwc3_omap_probe(struct platform_device *pdev)
int ret;
int irq;
- int utmi_mode = 0;
-
u32 reg;
void __iomem *base;
@@ -464,23 +486,7 @@ static int dwc3_omap_probe(struct platform_device *pdev)
}
dwc3_omap_map_offset(omap);
-
- reg = dwc3_omap_read_utmi_status(omap);
-
- of_property_read_u32(node, "utmi-mode", &utmi_mode);
-
- switch (utmi_mode) {
- case DWC3_OMAP_UTMI_MODE_SW:
- reg |= USBOTGSS_UTMI_OTG_STATUS_SW_MODE;
- break;
- case DWC3_OMAP_UTMI_MODE_HW:
- reg &= ~USBOTGSS_UTMI_OTG_STATUS_SW_MODE;
- break;
- default:
- dev_dbg(dev, "UNKNOWN utmi mode %d\n", utmi_mode);
- }
-
- dwc3_omap_write_utmi_status(omap, reg);
+ dwc3_omap_set_utmi_mode(omap);
/* check the DMA Status */
reg = dwc3_omap_readl(omap->base, USBOTGSS_SYSCONFIG);
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