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

[ Upstream commit 055e04830d ]

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 <naresh.kamboju@linaro.org>
Reported-by: Anders Roxell <anders.roxell@linaro.org>
Reported-by: Faiz Abbas <faiz_abbas@ti.com>
Cc: <stable@vger.kernel.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Tested-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Ulf Hansson 2020-03-24 19:07:37 +01:00 committed by Greg Kroah-Hartman
parent bf8b920f47
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;