Re: [PATCH V2 0/5] mmc: mmci: add busy detect for stm32 sdmmc variant

[Ludovic BARRE]

On 4/30/19 1:13 PM, Ulf Hansson wrote:
> On Fri, 26 Apr 2019 at 09:46, Ludovic Barre <ludovic.Barre@xxxxxx> wrote:
> > From: Ludovic Barre <ludovic.barre@xxxxxx>
> >
> > 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.
> >
> > V2:
> > -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 (5):
> >    mmc: mmci: cleanup mmci_cmd_irq for busy detect feature
> >    mmc: mmci: avoid fake busy polling in mmci_irq
> >    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 | 61 ++++++++++++++++++++++++++++++++++++++-----------
> >   drivers/mmc/host/mmci.h |  3 +++
> >   2 files changed, 51 insertions(+), 13 deletions(-)
> >
> > --
> > 2.7.4
>
> Ludovic, just wanted to let you know that I am reviewing and testing
> this series.
>
> However, while running some tests on Ux500 for validating the busy
> detection code, even without your series applied, I encounter some odd
> behaviors. I am looking into the problem to understand better and will
> let you know as soon as I have some more data to share.

Oops, don't hesitate to share your status, if I could help.

> Kind regards
> Uffe