diff options
| author | Arnaud Patard <apatard@mandriva.com> | 2008-07-25 01:46:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-25 10:53:30 -0700 |
| commit | 60e540d617b40eb3d37f1dd99c97af588ff9b70b (patch) | |
| tree | f4887d37cb8e21ffa86abf43d489fdd4c426d734 /drivers/mfd/sm501.c | |
| parent | f61be273d3699d174bc1438e6804f9f9e52bb932 (diff) | |
| download | lwn-60e540d617b40eb3d37f1dd99c97af588ff9b70b.tar.gz lwn-60e540d617b40eb3d37f1dd99c97af588ff9b70b.zip | |
sm501: gpio dynamic registration for PCI devices
The SM501 PCI card requires a dyanmic gpio allocation as the number of
cards is not known at compile time. Fixup the platform data and
registration to deal with this.
Acked-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Arnaud Patard <apatard@mandriva.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/mfd/sm501.c')
| -rw-r--r-- | drivers/mfd/sm501.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c index be8713908125..c3e5a48f6148 100644 --- a/drivers/mfd/sm501.c +++ b/drivers/mfd/sm501.c @@ -996,12 +996,13 @@ static int __devinit sm501_gpio_register_chip(struct sm501_devdata *sm, { struct sm501_platdata *pdata = sm->platdata; struct gpio_chip *gchip = &chip->gpio; - unsigned base = pdata->gpio_base; + int base = pdata->gpio_base; memcpy(chip, &gpio_chip_template, sizeof(struct gpio_chip)); if (chip == &gpio->high) { - base += 32; + if (base > 0) + base += 32; chip->regbase = gpio->regs + SM501_GPIO_DATA_HIGH; gchip->label = "SM501-HIGH"; } else { @@ -1452,6 +1453,7 @@ static struct sm501_platdata_fb sm501_fb_pdata = { static struct sm501_platdata sm501_pci_platdata = { .init = &sm501_pci_initdata, .fb = &sm501_fb_pdata, + .gpio_base = -1, }; static int sm501_pci_probe(struct pci_dev *dev, |