diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/omap_hsmmc.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 5167e55..9656726 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -1754,15 +1754,33 @@ static int omap_hsmmc_configure_wake_irq(struct omap_hsmmc_host *host) * and need to remux SDIO DAT1 to GPIO for wake-up from idle. */ if (host->pdata->controller_flags & OMAP_HSMMC_SWAKEUP_MISSING) { - ret = -ENODEV; - devm_free_irq(host->dev, host->wake_irq, host); - goto err; + struct pinctrl *p = devm_pinctrl_get(host->dev); + if (!p) { + ret = -ENODEV; + goto err_free_irq; + } + if (IS_ERR(pinctrl_lookup_state(p, PINCTRL_STATE_DEFAULT))) { + dev_info(host->dev, "missing default pinctrl state\n"); + devm_pinctrl_put(p); + ret = -EINVAL; + goto err_free_irq; + } + + if (IS_ERR(pinctrl_lookup_state(p, PINCTRL_STATE_IDLE))) { + dev_info(host->dev, "missing idle pinctrl state\n"); + devm_pinctrl_put(p); + ret = -EINVAL; + goto err_free_irq; + } + devm_pinctrl_put(p); } OMAP_HSMMC_WRITE(host->base, HCTL, OMAP_HSMMC_READ(host->base, HCTL) | IWE); return 0; +err_free_irq: + devm_free_irq(host->dev, host->wake_irq, host); err: dev_warn(host->dev, "no SDIO IRQ support, falling back to polling\n"); host->wake_irq = 0; |