btashton commented on a change in pull request #2464:
URL: https://github.com/apache/incubator-nuttx/pull/2464#discussion_r534780697
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File path: drivers/mmcsd/mmcsd_sdio.c
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@@ -2645,7 +2645,7 @@ static int mmcsd_widebus(FAR struct mmcsd_state_s *priv)
priv->widebus = true;
SDIO_CLOCK(priv->dev, CLOCK_SD_TRANSFER_4BIT);
- usleep(MMCSD_CLK_DELAY);
+ up_udelay(MMCSD_CLK_DELAY);
Review comment:
Another quick useful test would be for you to run the sleep command from
nsh. That would give us some confidence that the context switching logic is
working correctly.
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