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Date: Tue, 30 Apr 2019 13:13:57 +0200 From: Ulf Hansson <ulf.hansson@...aro.org> To: Ludovic Barre <ludovic.Barre@...com> Cc: Rob Herring <robh+dt@...nel.org>, Srinivas Kandagatla <srinivas.kandagatla@...aro.org>, Maxime Coquelin <mcoquelin.stm32@...il.com>, Alexandre Torgue <alexandre.torgue@...com>, Linux ARM <linux-arm-kernel@...ts.infradead.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, DTML <devicetree@...r.kernel.org>, "linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>, linux-stm32@...md-mailman.stormreply.com Subject: Re: [PATCH V2 0/5] mmc: mmci: add busy detect for stm32 sdmmc variant On Fri, 26 Apr 2019 at 09:46, Ludovic Barre <ludovic.Barre@...com> wrote: > > From: Ludovic Barre <ludovic.barre@...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. > > 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. Kind regards Uffe
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