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Re: [PATCH] MIPS: BCM47XX: fix compile error in wgt634u.c

To: Hauke Mehrtens <>
Subject: Re: [PATCH] MIPS: BCM47XX: fix compile error in wgt634u.c
From: Florian Fainelli <>
Date: Wed, 12 Dec 2012 10:13:39 +0100
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Hello Hauke,

Le 12/12/12 02:10, Hauke Mehrtens a écrit :
After the new GPIO handling for the bcm47xx target was introduced
wgt634u.c was not changed.
This patch fixes the following compile error:

arch/mips/bcm47xx/wgt634u.c: In function ‘gpio_interrupt’:
arch/mips/bcm47xx/wgt634u.c:119:2: error: implicit declaration of function 
‘gpio_polarity’ [-Werror=implicit-function-declaration]
arch/mips/bcm47xx/wgt634u.c: In function ‘wgt634u_init’:
arch/mips/bcm47xx/wgt634u.c:153:4: error: implicit declaration of function 
‘gpio_intmask’ [-Werror=implicit-function-declaration]

Thanks for fixing this. We should probably remove this wgt634u file some day or the other as it was an ad-hoc hack for this single device while we actually need a general solution for all BCM47xx boards out there.

Reported-by: Ralf Baechle <>
Signed-off-by: Hauke Mehrtens <>
  arch/mips/bcm47xx/wgt634u.c |    8 ++++++--
  1 file changed, 6 insertions(+), 2 deletions(-)

I am planing to remove this entire file, but I haven't come up with
code adding support for most of the boards found in the wild.

diff --git a/arch/mips/bcm47xx/wgt634u.c b/arch/mips/bcm47xx/wgt634u.c
index e9f9ec8..6c28f6d 100644
--- a/arch/mips/bcm47xx/wgt634u.c
+++ b/arch/mips/bcm47xx/wgt634u.c
@@ -11,6 +11,7 @@
  #include <linux/leds.h>
  #include <linux/mtd/physmap.h>
  #include <linux/ssb/ssb.h>
+#include <linux/ssb/ssb_embedded.h>
  #include <linux/interrupt.h>
  #include <linux/reboot.h>
  #include <linux/gpio.h>
@@ -116,7 +117,8 @@ static irqreturn_t gpio_interrupt(int irq, void *ignored)

        /* Interrupt are level triggered, revert the interrupt polarity
           to clear the interrupt. */
-       gpio_polarity(WGT634U_GPIO_RESET, state);
+       ssb_gpio_polarity(&bcm47xx_bus.ssb, 1 << WGT634U_GPIO_RESET,
+                         state ? 1 << WGT634U_GPIO_RESET : 0);

        if (!state) {
                printk(KERN_INFO "Reset button pressed");
@@ -150,7 +152,9 @@ static int __init wgt634u_init(void)
                                 gpio_interrupt, IRQF_SHARED,
                                 "WGT634U GPIO", &bcm47xx_bus.ssb.chipco)) {
-                       gpio_intmask(WGT634U_GPIO_RESET, 1);
+                       ssb_gpio_intmask(&bcm47xx_bus.ssb,
+                                        1 << WGT634U_GPIO_RESET,
+                                        1 << WGT634U_GPIO_RESET);

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