diff options
Diffstat (limited to 'drivers/mmc/core/host.c')
| -rw-r--r-- | drivers/mmc/core/host.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 64b03d6eaf18..da08a17fbf6c 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -179,7 +179,7 @@ static void mmc_retune_timer(struct timer_list *t) int mmc_of_parse(struct mmc_host *host) { struct device *dev = host->parent; - u32 bus_width, drv_type; + u32 bus_width, drv_type, cd_debounce_delay_ms; int ret; bool cd_cap_invert, cd_gpio_invert = false; bool ro_cap_invert, ro_gpio_invert = false; @@ -230,11 +230,16 @@ int mmc_of_parse(struct mmc_host *host) } else { cd_cap_invert = device_property_read_bool(dev, "cd-inverted"); + if (device_property_read_u32(dev, "cd-debounce-delay-ms", + &cd_debounce_delay_ms)) + cd_debounce_delay_ms = 200; + if (device_property_read_bool(dev, "broken-cd")) host->caps |= MMC_CAP_NEEDS_POLL; ret = mmc_gpiod_request_cd(host, "cd", 0, true, - 0, &cd_gpio_invert); + cd_debounce_delay_ms, + &cd_gpio_invert); if (!ret) dev_info(host->parent, "Got CD GPIO\n"); else if (ret != -ENOENT && ret != -ENOSYS) |