[PATCH 0/2] provide isr for card-detect interrupts

[jszhang@marvell.com (Jisheng Zhang)]

We found one issue on BG4CT platforms with GPIO for the card detect
interrupt: remove sdcard when there's read write access to the sdcard,
sometimes the card remove event can't be handled for a long time, so
the  system still think the sdcard is still plugged in. It turns out
that the sdhci_card_event() is missing in common slot gpio's card
detect isr. This should be common for all sdhci platforms.

We fix this issue by providing sdhci's own isr for card-detect
interrupts. In this own isr, we call sdhci_card_event() then process
the change of state.

patch1 is to prepare the fix in slot-gpio
patch2 is the real fix

Jisheng Zhang (2):
  mmc: slot-gpio: check cd_gpio before setting up cd_gpio_isr
  mmc: sdhci: provide isr for card-detect interrupts

 drivers/mmc/core/slot-gpio.c |  3 +++
 drivers/mmc/host/sdhci.c     | 12 ++++++++++++
 2 files changed, 15 insertions(+)

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2.11.0