[PATCH v3 0/6] spi: cadence-xspi: Fixes and ACPI changes

[Paul Cercueil]

Hi Mark,

This is the v3 of my patchset that adds a few fixes to the cadence-xspi
driver, some cleanups, as well as a workaround for probing the Marvell
IP on firmwares that use the base string.

The workaround has been reworked to check the board's compatible string
on DTB and the DSDT table on ACPI.

I am not dismissing Jisheng Zhang's feedback, I had the new workaround
patch ready and thought I'd send it along - with the understanding that
if it's really a deal breaker then you'd skip this one and merge the
rest.

The v3 fixes the patch [6/6] which didn't build with !CONFIG_ACPI.

I also needed to send a v3 anyway because I didn't Cc linux-stable on my
fixes (patches 1-3). Oops.

Changes in v3:

- [6/6]: Wrap ACPI specific code with CONFIG_ACPI guards, as some of
         the functions and structs aren't defined without CONFIG_ACPI.

Changes in v2:

- [1/6] is a new patch to fix the error reporting in
        .transfer_one_message that you reported on the v1.
- [2/6] was adapted slightly to work on top of [1/6].
- [5/6] drops the error messages as devm_ioremap_resource() already
        prints errors.
- [6/6] Replace the workaround based on the presence of the "xfer"
        resource with one that identifies a Marvell SoC based on the
	board's compatible string on DTB, and the DSDT table on ACPI.

Cheers,
-Paul

Tanmay Jagdale (6):
  spi: cadence-xspi: Properly handle errors in .transfer_one_message
  spi: cadence-xspi: Reconfigure to STIG mode before SPI message
  spi: cadence-xspi: Inform SPI core about size transferred
  spi: cadence-xspi: Drop useless cdns_xspi->cur_cs
  spi: cadence-xspi: Rework resource discovery
  spi: cadence-xspi: Add workaround for old Marvell firmwares

 drivers/spi/spi-cadence-xspi.c | 161 ++++++++++++++++++++++-----------
 1 file changed, 108 insertions(+), 53 deletions(-)

-- 
2.47.3