From d2f0cf89ca2deca59cc4ca0c80c14100831428db Mon Sep 17 00:00:00 2001 From: George Cherian Date: Wed, 16 Jul 2014 18:37:07 +0530 Subject: [PATCH] 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 Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/dwc3-omap.c | 44 ++++++++++++++++++++---------------- 1 file changed, 25 insertions(+), 19 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index 22fca6291ff5..6a90b96c9d14 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); -- 2.20.1