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bcma: allow enabling PLL

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Signed-off-by: Rafał Miłecki <[email protected]>
Signed-off-by: John W. Linville <[email protected]>
This commit is contained in:
Rafał Miłecki 2011-07-17 01:06:05 +02:00 • committed by John W. Linville
commit 6f53912fc3
2 changed files with 27 additions and 0 deletions
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25
drivers/bcma/core.c
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@ -81,3 +81,28 @@ void bcma_core_set_clockmode(struct bcma_device *core,
}
}
EXPORT_SYMBOL_GPL(bcma_core_set_clockmode);
void bcma_core_pll_ctl(struct bcma_device *core, u32 req, u32 status, bool on)
{
u16 i;
WARN_ON(req & ~BCMA_CLKCTLST_EXTRESREQ);
WARN_ON(status & ~BCMA_CLKCTLST_EXTRESST);
if (on) {
bcma_set32(core, BCMA_CLKCTLST, req);
for (i = 0; i < 10000; i++) {
if ((bcma_read32(core, BCMA_CLKCTLST) & status) ==
status) {
i = 0;
break;
}
udelay(10);
}
if (i)
pr_err("PLL enable timeout\n");
} else {
pr_warn("Disabling PLL not supported yet!\n");
}
}
EXPORT_SYMBOL_GPL(bcma_core_pll_ctl);