diff options
| author | Patrick McHardy <kaber@trash.net> | 2011-01-19 23:51:37 +0100 |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2011-01-19 23:51:37 +0100 |
| commit | 14f0290ba44de6ed435fea24bba26e7868421c66 (patch) | |
| tree | 449d32e4848007e3edbcab14fa8e09fdc66608ed /drivers/gpio/wm8994-gpio.c | |
| parent | f5c88f56b35599ab9ff2d3398e0153e4cd4a4c82 (diff) | |
| parent | a5db219f4cf9f67995eabd53b81a1232c82f5852 (diff) | |
Merge branch 'master' of /repos/git/net-next-2.6
Diffstat (limited to 'drivers/gpio/wm8994-gpio.c')
| -rw-r--r-- | drivers/gpio/wm8994-gpio.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/gpio/wm8994-gpio.c b/drivers/gpio/wm8994-gpio.c index 618398e4ed8..c822baacd8f 100644 --- a/drivers/gpio/wm8994-gpio.c +++ b/drivers/gpio/wm8994-gpio.c @@ -35,6 +35,29 @@ static inline struct wm8994_gpio *to_wm8994_gpio(struct gpio_chip *chip) return container_of(chip, struct wm8994_gpio, gpio_chip); } +static int wm8994_gpio_request(struct gpio_chip *chip, unsigned offset) +{ + struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip); + struct wm8994 *wm8994 = wm8994_gpio->wm8994; + + switch (wm8994->type) { + case WM8958: + switch (offset) { + case 1: + case 2: + case 3: + case 4: + case 6: + return -EINVAL; + } + break; + default: + break; + } + + return 0; +} + static int wm8994_gpio_direction_in(struct gpio_chip *chip, unsigned offset) { struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip); @@ -136,6 +159,7 @@ static void wm8994_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) static struct gpio_chip template_chip = { .label = "wm8994", .owner = THIS_MODULE, + .request = wm8994_gpio_request, .direction_input = wm8994_gpio_direction_in, .get = wm8994_gpio_get, .direction_output = wm8994_gpio_direction_out, |