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bcma: allow enabling PLL 

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Rafał Miłecki 2011-07-17 01:06:05 +02:00 committed by John W. Linville
parent 7424dd0d03
commit 6f53912fc3
2 changed files with 27 additions and 0 deletions
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25
drivers/bcma/core.c
View File

@ -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);

2
include/linux/bcma/bcma.h
View File

@ -260,5 +260,7 @@ extern void bcma_core_disable(struct bcma_device *core, u32 flags);
extern int bcma_core_enable(struct bcma_device *core, u32 flags);
extern void bcma_core_set_clockmode(struct bcma_device *core,
enum bcma_clkmode clkmode);
extern void bcma_core_pll_ctl(struct bcma_device *core, u32 req, u32 status,
bool on);
#endif /* LINUX_BCMA_H_ */