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usb: renesas_usbhs: Add a function to write the UGCTRL2 register

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To cleanup the code, this patch adds a function to write the UGCTRL2
register.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Yoshihiro Shimoda 2017-12-13 15:46:57 +09:00 committed by Felipe Balbi
parent 38d2b5fb75
commit 05e37b626f
1 changed files with 7 additions and 4 deletions
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11
drivers/usb/renesas_usbhs/rcar3.c
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@ -44,13 +44,17 @@ static u32 usbhs_read32(struct usbhs_priv *priv, u32 reg)
return ioread32(priv->base + reg);
}
static void usbhs_rcar3_set_ugctrl2(struct usbhs_priv *priv, u32 val)
{
usbhs_write32(priv, UGCTRL2, val | UGCTRL2_RESERVED_3);
}
static int usbhs_rcar3_power_ctrl(struct platform_device *pdev,
void __iomem *base, int enable)
{
struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
usbhs_write32(priv, UGCTRL2, UGCTRL2_RESERVED_3 | UGCTRL2_USB0SEL_OTG |
UGCTRL2_VBUSSEL);
usbhs_rcar3_set_ugctrl2(priv, UGCTRL2_USB0SEL_OTG | UGCTRL2_VBUSSEL);
if (enable) {
usbhs_bset(priv, LPSTS, LPSTS_SUSPM, LPSTS_SUSPM);
@ -73,8 +77,7 @@ static int usbhs_rcar3_power_and_pll_ctrl(struct platform_device *pdev,
if (enable) {
usbhs_write32(priv, UGCTRL, 0); /* release PLLRESET */
usbhs_write32(priv, UGCTRL2, UGCTRL2_RESERVED_3 |
UGCTRL2_USB0SEL_HSUSB);
usbhs_rcar3_set_ugctrl2(priv, UGCTRL2_USB0SEL_HSUSB);
usbhs_bset(priv, LPSTS, LPSTS_SUSPM, LPSTS_SUSPM);
do {