mmc: core: Fixup support for HW busy detection for HPI commands

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In case the host specify a max_busy_timeout, we need to validate that the
needed timeout for the HPI command conforms to that requirement. If that's
not the case, let's convert from a R1B response to a R1 response, as to
instruct the host to avoid HW busy detection.

Additionally, when R1B is used we must also inform the host about the busy
timeout for the command, so let's do that via updating cmd.busy_timeout.

Finally, when R1B is used and in case the host supports HW busy detection,
there should be no need for doing polling, so then skip that.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Baolin Wang <baolin.wang7@gmail.com>
Tested-by: Ludovic Barre <ludovic.barre@st.com>
Reviewed-by: Ludovic Barre <ludovic.barre@st.com>
Link: https://lore.kernel.org/r/20200204085449.32585-12-ulf.hansson@linaro.org

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This commit is contained in:

Ulf Hansson 2020-02-04 09:54:48 +01:00

parent 490ff95f8e

commit 892bf10014

1 changed files with 25 additions and 11 deletions

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drivers/mmc/core/mmc_ops.c

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