diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/fbtft/fbtft-core.c | 51 |
1 files changed, 26 insertions, 25 deletions
diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c index a72e046..d2f547e 100644 --- a/drivers/staging/fbtft/fbtft-core.c +++ b/drivers/staging/fbtft/fbtft-core.c @@ -123,33 +123,34 @@ static int fbtft_request_gpios(struct fbtft_par *par) unsigned long flags; int ret; - if (pdata && pdata->gpios) { - gpio = pdata->gpios; - while (gpio->name[0]) { - flags = FBTFT_GPIO_NO_MATCH; - /* if driver provides match function, try it first, - if no match use our own */ - if (par->fbtftops.request_gpios_match) - flags = par->fbtftops.request_gpios_match(par, gpio); - if (flags == FBTFT_GPIO_NO_MATCH) - flags = fbtft_request_gpios_match(par, gpio); - if (flags != FBTFT_GPIO_NO_MATCH) { - ret = devm_gpio_request_one(par->info->device, - gpio->gpio, flags, - par->info->device->driver->name); - if (ret < 0) { - dev_err(par->info->device, - "%s: gpio_request_one('%s'=%d) failed with %d\n", - __func__, gpio->name, - gpio->gpio, ret); - return ret; - } - fbtft_par_dbg(DEBUG_REQUEST_GPIOS, par, - "%s: '%s' = GPIO%d\n", - __func__, gpio->name, gpio->gpio); + if (!(pdata && pdata->gpios)) + return 0; + + gpio = pdata->gpios; + while (gpio->name[0]) { + flags = FBTFT_GPIO_NO_MATCH; + /* if driver provides match function, try it first, + if no match use our own */ + if (par->fbtftops.request_gpios_match) + flags = par->fbtftops.request_gpios_match(par, gpio); + if (flags == FBTFT_GPIO_NO_MATCH) + flags = fbtft_request_gpios_match(par, gpio); + if (flags != FBTFT_GPIO_NO_MATCH) { + ret = devm_gpio_request_one(par->info->device, + gpio->gpio, flags, + par->info->device->driver->name); + if (ret < 0) { + dev_err(par->info->device, + "%s: gpio_request_one('%s'=%d) failed with %d\n", + __func__, gpio->name, + gpio->gpio, ret); + return ret; } - gpio++; + fbtft_par_dbg(DEBUG_REQUEST_GPIOS, par, + "%s: '%s' = GPIO%d\n", + __func__, gpio->name, gpio->gpio); } + gpio++; } return 0; |