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Commit ea3488f4 authored by Hauke Mehrtens's avatar Hauke Mehrtens Committed by John Crispin
Browse files

bcma: add bcma_chipco_gpio_pull{up,down} 



Add functions to access the GPIO registers for pullup and pulldown.
These are needed for handling gpio registration.

Signed-off-by: default avatarHauke Mehrtens <hauke@hauke-m.de>
Patchwork: http://patchwork.linux-mips.org/patch/4586


Acked-by: default avatarFlorian Fainelli <florian@openwrt.org>
parent ef85fb28

drivers/bcma/driver_chipcommon.c

+30 −0
Original line number Diff line number Diff line
@@ -145,6 +145,36 @@ u32 bcma_chipco_gpio_polarity(struct bcma_drv_cc *cc, u32 mask, u32 value) 
	return res;

}



u32 bcma_chipco_gpio_pullup(struct bcma_drv_cc *cc, u32 mask, u32 value)

{

	unsigned long flags;

	u32 res;



	if (cc->core->id.rev < 20)

		return 0;



	spin_lock_irqsave(&cc->gpio_lock, flags);

	res = bcma_cc_write32_masked(cc, BCMA_CC_GPIOPULLUP, mask, value);

	spin_unlock_irqrestore(&cc->gpio_lock, flags);



	return res;

}



u32 bcma_chipco_gpio_pulldown(struct bcma_drv_cc *cc, u32 mask, u32 value)

{

	unsigned long flags;

	u32 res;



	if (cc->core->id.rev < 20)

		return 0;



	spin_lock_irqsave(&cc->gpio_lock, flags);

	res = bcma_cc_write32_masked(cc, BCMA_CC_GPIOPULLDOWN, mask, value);

	spin_unlock_irqrestore(&cc->gpio_lock, flags);



	return res;

}



#ifdef CONFIG_BCMA_DRIVER_MIPS

void bcma_chipco_serial_init(struct bcma_drv_cc *cc)

{

include/linux/bcma/bcma_driver_chipcommon.h

+2 −0
Original line number Diff line number Diff line
@@ -606,6 +606,8 @@ u32 bcma_chipco_gpio_outen(struct bcma_drv_cc *cc, u32 mask, u32 value); 
u32 bcma_chipco_gpio_control(struct bcma_drv_cc *cc, u32 mask, u32 value);

u32 bcma_chipco_gpio_intmask(struct bcma_drv_cc *cc, u32 mask, u32 value);

u32 bcma_chipco_gpio_polarity(struct bcma_drv_cc *cc, u32 mask, u32 value);

u32 bcma_chipco_gpio_pullup(struct bcma_drv_cc *cc, u32 mask, u32 value);

u32 bcma_chipco_gpio_pulldown(struct bcma_drv_cc *cc, u32 mask, u32 value);



/* PMU support */

extern void bcma_pmu_init(struct bcma_drv_cc *cc);