From 57da0c042f4af52614f4bd1a148155a299ae5cd8 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Wed, 4 May 2016 14:38:13 +0300 Subject: [PATCH] mmc: block: Pause re-tuning while switched to the RPMB partition Re-tuning is not possible when switched to the RPMB partition. However re-tuning should not be needed if re-tuning is done immediately before switching, a small set of operations is done, and then we immediately switch back to the main partition. A previous patch ensured that we immediately switch back to the main partition. This patch uses the new facility to "pause" re-tuning before switching to the RPMB partition, and to "unpause" it after switching from the RPMB partition. Signed-off-by: Adrian Hunter Signed-off-by: Ulf Hansson --- drivers/mmc/card/block.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index 48a5d2e04cea..33b98595d8d7 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -756,16 +756,25 @@ static inline int mmc_blk_part_switch(struct mmc_card *card, if (mmc_card_mmc(card)) { u8 part_config = card->ext_csd.part_config; + if (md->part_type == EXT_CSD_PART_CONFIG_ACC_RPMB) + mmc_retune_pause(card->host); + part_config &= ~EXT_CSD_PART_CONFIG_ACC_MASK; part_config |= md->part_type; ret = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_PART_CONFIG, part_config, card->ext_csd.part_time); - if (ret) + if (ret) { + if (md->part_type == EXT_CSD_PART_CONFIG_ACC_RPMB) + mmc_retune_unpause(card->host); return ret; + } card->ext_csd.part_config = part_config; + + if (main_md->part_curr == EXT_CSD_PART_CONFIG_ACC_RPMB) + mmc_retune_unpause(card->host); } main_md->part_curr = md->part_type; -- GitLab