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Subject[PATCH V6 0/3] mmc: mmci: add busy detect for stm32 sdmmc variant
From: Ludovic Barre <>

This patch series adds busy detect for stm32 sdmmc variant.
Some adaptations are required:
-On sdmmc the data timer is started on data transfert
and busy state, so we must add hardware busy timeout support.
-Add busy_complete callback at mmci_host_ops to allow to define
a specific busy completion by variant.
-Add sdmmc busy_complete callback.

-mmci_start_command: set datatimer only on rsp_busy flag
(remove host->mrq->data).
-move max_busy_timeout in set_ios callback.
-typo fix: err_msk, clks on one lines.

-Replaces !cmd->data to !host->mrq->data to avoid overwrite
of datatimer register by the first command (cmd23, without data) of
SBC request.

-Re-work with busy_complete callback
-In series, move "mmc: mmci: add hardware busy timeout feature" in
first to simplify busy_complete prototype with err_msk parameter.

-rebase on latest mmc next
-replace re-read by status parameter.

-mmci_cmd_irq cleanup in separate patch.
-simplify the busy_detect_flag exclude
-replace sdmmc specific comment in
"mmc: mmci: avoid fake busy polling in mmci_irq"
to focus on common behavior

Ludovic Barre (3):
mmc: mmci: add hardware busy timeout feature
mmc: mmci: add busy_complete callback
mmc: mmci: sdmmc: add busy_complete callback

drivers/mmc/host/mmci.c | 183 +++++++++++++++++-----------
drivers/mmc/host/mmci.h | 7 +-
drivers/mmc/host/mmci_stm32_sdmmc.c | 38 ++++++
3 files changed, 156 insertions(+), 72 deletions(-)


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