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Commit 6f53912f authored by Rafał Miłecki's avatar Rafał Miłecki Committed by John W. Linville
Browse files

bcma: allow enabling PLL 



Signed-off-by: default avatarRafał Miłecki <zajec5@gmail.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 7424dd0d

drivers/bcma/core.c

+25 −0
Original line number Diff line number Diff line
@@ -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);

include/linux/bcma/bcma.h

+2 −0
Original line number Diff line number Diff line
@@ -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_ */