提交 006fc51c 编写于 作者: N NeilBrown 提交者: Ulf Hansson

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: NNeilBrown <neilb@suse.de>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
上级 59b6c9e0
......@@ -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);
......
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