[Linux-stm32] [PATCH 0/4] mmc: mmci: add busy detect for stm32 sdmmc variant

[Ludovic Barre]

From: Ludovic Barre <ludovic.barre at st.com>

This patch series adds busy detect for stm32 sdmmc variant.
Some adaptations are required:
-Avoid to check and poll busy status when is not expected.
-Clear busy status bit if busy_detect_flag and busy_detect_mask are
 different.
-Add hardware busy timeout with MMCIDATATIMER register.

Ludovic Barre (4):
  mmc: mmci: avoid fake busy polling
  mmc: mmci: fix clear of busy detect status
  mmc: mmci: add hardware busy timeout feature
  mmc: mmci: add busy detect for stm32 sdmmc variant

 drivers/mmc/host/mmci.c | 67 +++++++++++++++++++++++++++++++++++++++----------
 drivers/mmc/host/mmci.h |  3 +++
 2 files changed, 57 insertions(+), 13 deletions(-)

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2.7.4