[PATCH] mmc: sdio: Fix sdio wait busy implement limitation

From	<jiajie.hao@mediatek.com>
Newsgroups	linux.kernel
Subject	[PATCH] mmc: sdio: Fix sdio wait busy implement limitation
Date	2017-04-17 10:10 +0200
Message-ID	<tx9Tr-6KB-7@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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The host may issue an I/O abort by writing to the CCCR at any time
during I/O read operation via CMD52. And host may need suspend
transcation during write busy stage in SDIO suspend/resume scenario.
From other side, a card may accept CMD52 during data transfer phase.

Previous implement would block issuing above command in busy stage.
It cause function driver can't implement as proper way and has no
opportunity to do some coverage in error case via I/O abort etc.

We need bypass some necessary operation during busy check stage.

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[PATCH] mmc: sdio: Fix sdio wait busy implement limitation  <jiajie.hao@mediatek.com> - 2017-04-17 10:10 +0200
  [PATCH] mmc: sdio: Fix sdio wait busy implement limitation <jiajie.hao@mediatek.com> - 2017-04-17 10:20 +0200
    答复: [PATCH] mmc: sdio: Fix sdio wait busy implement limitation Jiajie Hao (郝加节)          <jiajie.hao@mediatek.com> - 2017-04-17 10:40 +0200
    Re: [PATCH] mmc: sdio: Fix sdio wait busy implement limitation Ulf Hansson <ulf.hansson@linaro.org> - 2017-04-20 15:30 +0200
      Re: [PATCH] mmc: sdio: Fix sdio wait busy implement limitation Jiajie Hao <jiajie.hao@mediatek.com> - 2017-04-23 08:50 +0200

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