From ea3488f4696fe22811eb19bee7088b732d3f8fe0 Mon Sep 17 00:00:00 2001 From: Hauke Mehrtens Date: Tue, 20 Nov 2012 22:24:28 +0000 Subject: 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: Hauke Mehrtens Patchwork: http://patchwork.linux-mips.org/patch/4586 Acked-by: Florian Fainelli --- drivers/bcma/driver_chipcommon.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'drivers') diff --git a/drivers/bcma/driver_chipcommon.c b/drivers/bcma/driver_chipcommon.c index c9b63d9..0945383 100644 --- a/drivers/bcma/driver_chipcommon.c +++ b/drivers/bcma/driver_chipcommon.c @@ -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) { -- cgit v1.1