mmc: rtsx_pci: Fix support for speed-modes that relies on tuning
The TX/RX register should not be treated the same way to allow for better support of tuning. Fix this by using a default initial value for TX. Signed-off-by: NRicky Wu <ricky_wu@realtek.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200316025232.1167-1-ricky_wu@realtek.com [Ulf: Updated changelog] Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org> Acked-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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