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gpio: exar: Fix iomap request 

The UART driver already maps the resource for us. Trying to do this here
only fails and leaves us with a non-working device.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Jan Kiszka 2017-05-02 08:42:40 +02:00
parent a39f2fe716
commit 8847f5f9ef
1 changed files with 3 additions and 7 deletions
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10
drivers/gpio/gpio-exar.c
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@ -125,14 +125,10 @@ static int gpio_exar_probe(struct platform_device *pdev)
int index, ret;
/*
* Map the pci device to get the register addresses.
* We will need to read and write those registers to control
* the GPIO pins.
* Using managed functions will save us from unmaping on exit.
* As the device is enabled using managed functions by the
* UART driver we can also use managed functions here.
* The UART driver must have mapped region 0 prior to registering this
* device - use it.
*/
p = pcim_iomap(pcidev, 0, 0);
p = pcim_iomap_table(pcidev)[0];
if (!p)
return -ENOMEM;