From: Sowjanya Komatineni <skomatineni@nvidia.com>
Date: Wed, 11 Mar 2020 08:47:55 -0700
Subject: sdhci: tegra: Enable MMC_CAP_WAIT_WHILE_BUSY host capability
Git-commit: ff124c31ccd706c79c7a87c31a77b80fd89cd48b
Patch-mainline: v5.7-rc1
References: jsc#SLE-15847
Tegra sdhci host supports HW busy detection of the device busy
signaling over data0 lane.
So, this patch enables host capability MMC_CAP_wAIT_WHILE_BUSY.
Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Link: https://lore.kernel.org/r/1583941675-9884-2-git-send-email-skomatineni@nvidia.com
[Ulf: Lumped together the caps assignments]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
drivers/mmc/host/sdhci-tegra.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index fa8f6a4dcc7c..3e2c5101291d 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -1583,8 +1583,8 @@ static int sdhci_tegra_probe(struct platform_device *pdev)
if (tegra_host->soc_data->nvquirks & NVQUIRK_ENABLE_DDR50)
host->mmc->caps |= MMC_CAP_1_8V_DDR;
- /* R1B responses is required to properly manage HW busy detection. */
- host->mmc->caps |= MMC_CAP_NEED_RSP_BUSY;
+ /* HW busy detection is supported, but R1B responses are required. */
+ host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_NEED_RSP_BUSY;
tegra_sdhci_parse_dt(host);
--
2.26.2