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mmc: sdhci: Let drivers decide whether to use mmc_retune_needed() with pm

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Devices might save and restore tuning values so that re-tuning might not be
needed after a pm transition.  Let drivers decide by pushing the
mmc_retune_needed() logic down to them.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Ludovic Desroches <ludovic.desroches@microchip.com>
This commit is contained in:
Adrian Hunter
2017-03-20 19:50:32 +02:00
committed by Ulf Hansson
parent 5a436cc0af
commit d38dcad4e7
15 changed files with 73 additions and 11 deletions
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6
drivers/mmc/host/sdhci-st.c
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@@ -463,8 +463,12 @@ static int sdhci_st_suspend(struct device *dev)
struct sdhci_host *host = dev_get_drvdata(dev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct st_mmc_platform_data *pdata = sdhci_pltfm_priv(pltfm_host);
int ret = sdhci_suspend_host(host);
int ret;
if (host->tuning_mode != SDHCI_TUNING_MODE_3)
mmc_retune_needed(host->mmc);
ret = sdhci_suspend_host(host);
if (ret)
goto out;