tree 9b46c1b75b4244d3c19b6edc1db6d8388c9c0d24
parent a9f7be509af90fa5f2c308867ad3b0bd48532c6e
author Stephan Gerhold <stephan@gerhold.net> 1625583273 +0200
committer Peng Fan <peng.fan@nxp.com> 1627636381 +0800

mmc: arm_pl180_mmci: Don't bind to all arm, primecell devices

The arm,primecell compatible is used for lots of different types
of devices, e.g. I2C, SPI, coresight, ... We really should not bind
the MMC driver to all of them.

Looking through the device trees in U-Boot there seems to be always
a second compatible string for the pl180 device, either arm,pl180
(already listed) or arm,pl18x. Add the "arm,pl18x" compatible to the
list but remove the generic "arm,primecell".

Note that on Linux these compatibles cannot be found in drivers
because AMBA/primecell devices are matched based on their peripheral ID
instead of the compatible.

This fixes the following error messages when booting the ST-Ericsson
U8500 "stemmy" board with the arm_pl180_mmci driver enabled:

  MMC:   ptm@801ae000 - probe failed: -38
  ptm@801af000 - probe failed: -38
  funnel@801a6000 - probe failed: -38
  tpiu@80190000 - probe failed: -38
  etb@801a4000 - probe failed: -38

Cc: Patrice Chotard <patrice.chotard@st.com>
Fixes: 6f41d1a17e20 ("mmc: arm_pl180_mmci: Sync compatible with kernel")
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Tested-by: Patrice Chotard <patrice.chotard@foss.st.com> on stm32f769-disco
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>