tree 9f83ee05a0436e1b646992ef7233ad5669b02672
parent 3a3672cc3769a43750dd9fea90ed7a7900cb227f
author Ley Foon Tan <ley.foon.tan@intel.com> 1619408105 +0800
committer Peng Fan <peng.fan@nxp.com> 1624334531 +0800

mmc: dw_mmc: Fixes data read when receiving DTO interrupt in FIFO mode

The data read is not working when using FIFO mode.

From DesignWare databook, when a Data_Transfer_Over (DTO) interrupt is
received, the software should read the remaining data from FIFO.

Add DTO interrupt checking on data read path and clear interrupts before
start reading from FIFO. So, it doesn't clear the next pending
interrupts unintentionally after read from FIFO.

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>