mmc: rtsx_pci_sdmmc: implement sdmmc_card_busy function

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commit 1226102201 upstream.

rtsx_pci_sdmmc does not have an sdmmc_card_busy function, so any voltage
switches cause a kernel warning, "mmc0: cannot verify signal voltage
switch."

Copy the sdmmc_card_busy function from rtsx_pci_usb to rtsx_pci_sdmmc to
fix this.

Fixes: ff984e57d3 ("mmc: Add realtek pcie sdmmc host driver")
Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Tested-by: Ricky WU <ricky_wu@realtek.com>
Reviewed-by: Ricky WU <ricky_wu@realtek.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Matthew Schwartz 2025-12-29 12:45:26 -08:00 • committed by Greg Kroah-Hartman

parent e6f103a22b

commit ec5eccf560

1 changed files with 41 additions and 0 deletions

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drivers/mmc/host/rtsx_pci_sdmmc.c

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