From bf517d6fec719980fe3b7acd9670a68442a372b7 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Thu, 10 Aug 2017 15:08:06 +0300 Subject: [PATCH] mmc: core: Add mmc_retune_hold_now() mmc_return_hold() / mmc_retune_release() are used around a group of commands to prevent re-tuning between the commands. Re-tuning can still happen before the first command. In some cases, re-tuning must be prevented entirely. Add mmc_retune_hold_now() for that purpose. It is added in preparation for CQE support where it will be used by CQE recovery. Signed-off-by: Adrian Hunter Reviewed-by: Linus Walleij Signed-off-by: Ulf Hansson --- drivers/mmc/core/host.c | 6 ++++++ drivers/mmc/core/host.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 1503412f826c..ad88deb2e8f3 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -111,6 +111,12 @@ void mmc_retune_hold(struct mmc_host *host) host->hold_retune += 1; } +void mmc_retune_hold_now(struct mmc_host *host) +{ + host->retune_now = 0; + host->hold_retune += 1; +} + void mmc_retune_release(struct mmc_host *host) { if (host->hold_retune) diff --git a/drivers/mmc/core/host.h b/drivers/mmc/core/host.h index fb6a76a03833..77d6f60d1bf9 100644 --- a/drivers/mmc/core/host.h +++ b/drivers/mmc/core/host.h @@ -19,6 +19,7 @@ void mmc_unregister_host_class(void); void mmc_retune_enable(struct mmc_host *host); void mmc_retune_disable(struct mmc_host *host); void mmc_retune_hold(struct mmc_host *host); +void mmc_retune_hold_now(struct mmc_host *host); void mmc_retune_release(struct mmc_host *host); int mmc_retune(struct mmc_host *host); void mmc_retune_pause(struct mmc_host *host); -- 2.20.1