]> git.baikalelectronics.ru Git - kernel.git/commit
mmc: sdhci-tegra: Fix busy detection by enabling MMC_CAP_NEED_RSP_BUSY
authorUlf Hansson <ulf.hansson@linaro.org>
Tue, 24 Mar 2020 18:07:38 +0000 (19:07 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 1 Apr 2020 09:01:29 +0000 (11:01 +0200)
commitd7311617acf37ec10598bab8128c3cea85402255
treeac58dca56d25a1d14dadc657ebe1b7af00ad84af
parentb30054e53c84ec1d1ca979d20f2d77460c8131eb
mmc: sdhci-tegra: Fix busy detection by enabling MMC_CAP_NEED_RSP_BUSY

[ Upstream commit 794800ff661dabddcd6c05486b0ac19f8cc84aa8 ]

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>
drivers/mmc/host/sdhci-tegra.c