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mfd: lpc_ich: Only configure watchdog or GPIO when present 

Some chipsets don't currently have GPIO support enabled.  For these
chipsets don't go through the process of initializing the GPIO region.

Make the same change for the watchdog initialization for chipsets which
may not enable the WDT in the future.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Tested-by: Rajat Jain <rajatjain@juniper.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
hifive-unleashed-5.1
Peter Tyser 2014-03-10 16:34:52 -05:00 committed by Lee Jones
parent f5dccb1587
commit f0776b8ce0
1 changed files with 10 additions and 6 deletions
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16
drivers/mfd/lpc_ich.c
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@ -967,13 +967,17 @@ static int lpc_ich_probe(struct pci_dev *dev,
pci_set_drvdata(dev, priv);
ret = lpc_ich_init_wdt(dev);
if (!ret)
cell_added = true;
if (lpc_chipset_info[priv->chipset].iTCO_version) {
ret = lpc_ich_init_wdt(dev);
if (!ret)
cell_added = true;
}
ret = lpc_ich_init_gpio(dev);
if (!ret)
cell_added = true;
if (lpc_chipset_info[priv->chipset].gpio_version) {
ret = lpc_ich_init_gpio(dev);
if (!ret)
cell_added = true;
}
/*
* We only care if at least one or none of the cells registered