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mmc: sdhci-omap: Fix busy detection by enabling MMC_CAP_NEED_RSP_BUSY

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[ Upstream commit 055e04830d4544c57f2a5192a26c9e25915c29c0 ]

It has turned out that the sdhci-omap controller requires the R1B response,
for commands that has this response associated with them. So, converting
from an R1B to an R1 response for a CMD6 for example, leads to problems
with the HW busy detection support.

Fix this by informing the mmc core about the requirement, via setting the
host cap, MMC_CAP_NEED_RSP_BUSY.

Reported-by: Naresh Kamboju <[email protected]>
Reported-by: Anders Roxell <[email protected]>
Reported-by: Faiz Abbas <[email protected]>
Cc: <[email protected]>
Tested-by: Anders Roxell <[email protected]>
Tested-by: Faiz Abbas <[email protected]>
Signed-off-by: Ulf Hansson <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
This commit is contained in:
Ulf Hansson 2020-03-24 19:07:37 +01:00 • committed by Greg Kroah-Hartman
commit 71d89344af
1 changed files with 3 additions and 0 deletions
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3
drivers/mmc/host/sdhci-omap.c
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@ -1134,6 +1134,9 @@ static int sdhci_omap_probe(struct platform_device *pdev)
host->mmc_host_ops.execute_tuning = sdhci_omap_execute_tuning;
host->mmc_host_ops.enable_sdio_irq = sdhci_omap_enable_sdio_irq;
/* R1B responses is required to properly manage HW busy detection. */
mmc->caps |= MMC_CAP_NEED_RSP_BUSY;
ret = sdhci_setup_host(host);
if (ret)
goto err_put_sync;