diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/bcma/core.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/bcma/core.c b/drivers/bcma/core.c index 0686b1b5f27a..2d8506dbca76 100644 --- a/drivers/bcma/core.c +++ b/drivers/bcma/core.c @@ -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); |