From: NeilBrown Date: Wed, 12 Nov 2014 03:55:19 +0000 (+1100) Subject: mmc: core: reset sdio card properly on resume. X-Git-Tag: v4.14-rc1~6400^2~28 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=006fc51cb3ab42960fa4f246c772ad12e45a3a9b;p=platform%2Fkernel%2Flinux-rpi.git mmc: core: reset sdio card properly on resume. mmc_sdio_power_restore() calls mmc_send_if_cond(host, host->card->ocr); ret = mmc_send_io_op_cond(host, 0, NULL); between mmc_go_idle() and mmc_sdio_init_card(). mmc_sdio_resume() needs to as well, else my libertas sdio wifi device doesn't resume properly from suspend. Signed-off-by: NeilBrown Signed-off-by: Ulf Hansson --- diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index f0ddb0d..fd0750b 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -980,8 +980,12 @@ static int mmc_sdio_resume(struct mmc_host *host) if (mmc_card_is_removable(host) || !mmc_card_keep_power(host)) { sdio_reset(host); mmc_go_idle(host); - err = mmc_sdio_init_card(host, host->card->ocr, host->card, - mmc_card_keep_power(host)); + mmc_send_if_cond(host, host->card->ocr); + err = mmc_send_io_op_cond(host, 0, NULL); + if (!err) + err = mmc_sdio_init_card(host, host->card->ocr, + host->card, + mmc_card_keep_power(host)); } else if (mmc_card_keep_power(host) && mmc_card_wake_sdio_irq(host)) { /* We may have switched to 1-bit mode during suspend */ err = sdio_enable_4bit_bus(host->card);