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| author | Baolin Wang <baolin.wang7@gmail.com> | 2020-02-24 17:08:49 +0800 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-03-24 14:35:42 +0100 |
| commit | 55fc7d93a55b70c016982f9d9cba02ac789d88c6 (patch) | |
| tree | c1f2411b4c2af34ef0a6bae2f9443e39ef0316e2 /drivers/mmc | |
| parent | 6660d0ae1255ab2142dc3c6c790f3f309f0676bd (diff) | |
| download | linux-55fc7d93a55b70c016982f9d9cba02ac789d88c6.tar.gz linux-55fc7d93a55b70c016982f9d9cba02ac789d88c6.tar.bz2 linux-55fc7d93a55b70c016982f9d9cba02ac789d88c6.zip | |
mmc: sdhci-sprd: Set the missing MMC_CAP_WAIT_WHILE_BUSY flag
The Spreadtrum host controller supports HW busy detection for commands with
R1B responses, but also for I/O operations. This means when the host gets a
transfer complete event, that always indicates the busy signal is released.
Let's inform the mmc core about this, via setting the corresponding
MMC_CAP_WAIT_WHILE_BUSY flag, as to remove some redundant software busy
polling.
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/96f16647f6a6e8cb058c44e46c61b122df027059.1582535202.git.baolin.wang7@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-sprd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci-sprd.c b/drivers/mmc/host/sdhci-sprd.c index d3462237bca2..2ab42c59e4f8 100644 --- a/drivers/mmc/host/sdhci-sprd.c +++ b/drivers/mmc/host/sdhci-sprd.c @@ -556,7 +556,7 @@ static int sdhci_sprd_probe(struct platform_device *pdev) sdhci_sprd_voltage_switch; host->mmc->caps = MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED | - MMC_CAP_ERASE | MMC_CAP_CMD23; + MMC_CAP_ERASE | MMC_CAP_CMD23 | MMC_CAP_WAIT_WHILE_BUSY; ret = mmc_of_parse(host->mmc); if (ret) goto pltfm_free; |