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mmc: sdhci-tegra: Fix busy detection by enabling MMC_CAP_NEED_RSP_BUSY
[ Upstream commit d2f8bfa4bf
]
It has turned out that the sdhci-tegra 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: Bitan Biswas <bbiswas@nvidia.com>
Reported-by: Peter Geis <pgwipeout@gmail.com>
Suggested-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Cc: <stable@vger.kernel.org>
Tested-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Tested-By: Peter Geis <pgwipeout@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -502,6 +502,9 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
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if (tegra_host->soc_data->nvquirks & NVQUIRK_ENABLE_DDR50)
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host->mmc->caps |= MMC_CAP_1_8V_DDR;
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/* R1B responses is required to properly manage HW busy detection. */
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host->mmc->caps |= MMC_CAP_NEED_RSP_BUSY;
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tegra_host->power_gpio = devm_gpiod_get_optional(&pdev->dev, "power",
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GPIOD_OUT_HIGH);
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if (IS_ERR(tegra_host->power_gpio)) {
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