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| author | Adrian Hunter <adrian.hunter@intel.com> | 2014-12-05 19:40:59 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2015-01-19 09:56:30 +0100 |
| commit | 63e415c64003fd62a302a1dc19f082e2c6f1b7cc (patch) | |
| tree | 87a6a228a7f2b2fc19c9e3f67b1339181b930f05 /drivers/mmc/core/core.c | |
| parent | fdb9de129e1d68e1b804bc9c8b3027bea9b88bc8 (diff) | |
| download | linux-63e415c64003fd62a302a1dc19f082e2c6f1b7cc.tar.bz2 | |
mmc: core: Simplify by adding mmc_execute_tuning()
For each MMC, SD and SDIO there is code that
holds the clock, calls ops->execute_tuning, and
releases the clock. Simplify the code a bit by
providing a separate function to do that.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/core/core.c')
| -rw-r--r-- | drivers/mmc/core/core.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 2cdb06e0643e..dc9eb013db5f 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1077,6 +1077,30 @@ void mmc_set_ungated(struct mmc_host *host) } #endif +int mmc_execute_tuning(struct mmc_card *card) +{ + struct mmc_host *host = card->host; + u32 opcode; + int err; + + if (!host->ops->execute_tuning) + return 0; + + if (mmc_card_mmc(card)) + opcode = MMC_SEND_TUNING_BLOCK_HS200; + else + opcode = MMC_SEND_TUNING_BLOCK; + + mmc_host_clk_hold(host); + err = host->ops->execute_tuning(host, opcode); + mmc_host_clk_release(host); + + if (err) + pr_err("%s: tuning execution failed\n", mmc_hostname(host)); + + return err; +} + /* * Change the bus mode (open drain/push-pull) of a host. */ |