In case the card has been powered off, it seems silly to continue to allow the led to be updated. Instead let's forbid that, as it enables us to prevent runtime resuming the device and thus avoids wasting energy. Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx> --- drivers/mmc/host/rtsx_usb_sdmmc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/rtsx_usb_sdmmc.c b/drivers/mmc/host/rtsx_usb_sdmmc.c index 9a3ff22dd0fe..14b4a4e13fe6 100644 --- a/drivers/mmc/host/rtsx_usb_sdmmc.c +++ b/drivers/mmc/host/rtsx_usb_sdmmc.c @@ -1297,14 +1297,18 @@ static void rtsx_usb_update_led(struct work_struct *work) container_of(work, struct rtsx_usb_sdmmc, led_work); struct rtsx_ucr *ucr = host->ucr; - pm_runtime_get_sync(sdmmc_dev(host)); + pm_runtime_get_noresume(sdmmc_dev(host)); mutex_lock(&ucr->dev_mutex); + if (host->power_mode == MMC_POWER_OFF) + goto out; + if (host->led.brightness == LED_OFF) rtsx_usb_turn_off_led(ucr); else rtsx_usb_turn_on_led(ucr); +out: mutex_unlock(&ucr->dev_mutex); pm_runtime_put(sdmmc_dev(host)); } -- 2.17.0 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
