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staging: dwc2: add helper variable to simplify code 

Now a register is masked only in once place, instead of twice. This
makes the two uses of this value shorter so they no longer need to be
linewrapped.

Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Matthijs Kooijman 2013-04-29 19:42:00 +00:00 committed by Greg Kroah-Hartman
parent 37e1dcc25f
commit bcc5defa1a
1 changed files with 4 additions and 4 deletions
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8
drivers/staging/dwc2/hcd_intr.c
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@ -243,6 +243,7 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0,
u32 usbcfg;
u32 prtspd;
u32 hcfg;
u32 fslspclksel;
u32 hfir;
dev_vdbg(hsotg->dev, "%s(%p)\n", __func__, hsotg);
@ -274,6 +275,7 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0,
}
hcfg = readl(hsotg->regs + HCFG);
fslspclksel = hcfg & HCFG_FSLSPCLKSEL_MASK;
if (prtspd == HPRT0_SPD_LOW_SPEED &&
params->host_ls_low_power_phy_clk ==
@ -281,8 +283,7 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0,
/* 6 MHZ */
dev_vdbg(hsotg->dev,
"FS_PHY programming HCFG to 6 MHz\n");
if ((hcfg & HCFG_FSLSPCLKSEL_MASK) !=
HCFG_FSLSPCLKSEL_6_MHZ) {
if (fslspclksel != HCFG_FSLSPCLKSEL_6_MHZ) {
hcfg &= ~HCFG_FSLSPCLKSEL_MASK;
hcfg |= HCFG_FSLSPCLKSEL_6_MHZ;
writel(hcfg, hsotg->regs + HCFG);
@ -292,8 +293,7 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0,
/* 48 MHZ */
dev_vdbg(hsotg->dev,
"FS_PHY programming HCFG to 48 MHz\n");
if ((hcfg & HCFG_FSLSPCLKSEL_MASK) !=
HCFG_FSLSPCLKSEL_48_MHZ) {
if (fslspclksel != HCFG_FSLSPCLKSEL_48_MHZ) {
hcfg &= ~HCFG_FSLSPCLKSEL_MASK;
hcfg |= HCFG_FSLSPCLKSEL_48_MHZ;
writel(hcfg, hsotg->regs + HCFG);