[PATCH 0/4] mmc: sunxi: fixes and preparation for A523 UHS support

[Jernej Skrabec <jernej.skrabec@gmail.com>]

This series fixes a bug in the sunxi-mmc driver and paves the way for
SD card UHS-I support on the A523, which will follow in a later series
together with the A523 clock phases, delay-chain tuning and the PF bank
supply switch.

Patch 1 fixes the manual stop command error reporting: a successful
manual stop command is still reported as failed, while a failed one
stores the error in its response instead.

The remaining patches improve the DMA setup and error reporting, which
the UHS-I work builds upon: a DMA mask matching the shifted IDMA
addresses, IDMA descriptors built from the mapped DMA segments as the
DMA API requires, and CRC errors reported as -EILSEQ instead of
-ETIMEDOUT, so the MMC core can request retuning.

The series is based on mmc next, but depends on commit 5e32202f532d
("mmc: sunxi: fix clock and runtime PM leaks on probe failure") from
mmc fixes, which adds the error_disable_mmc label used by patch 2.

Tested on H3, H6 and H616 SoCs, on multiple boards, including Tanix TX6
and OrangePi Plus2E.

Best regards,
Jernej

Jernej Skrabec (4):
  mmc: sunxi: Report manual stop errors correctly
  mmc: sunxi: Set the IDMA DMA mask
  mmc: sunxi: Build IDMA descriptors from mapped SG list
  mmc: sunxi: Distinguish CRC and timeout errors

 drivers/mmc/host/sunxi-mmc.c | 122 +++++++++++++++++++++++------------
 1 file changed, 81 insertions(+), 41 deletions(-)


base-commit: fd9af27f6c2319713bb23832066585f8a59a1771
prerequisite-patch-id: 8d600908a2eb84acfcd034482dd6e345242f1464
-- 
2.43.0