On 6/28/21 9:23 AM, Michal Simek wrote:

On 6/26/21 12:27 PM, Raviteja Narayanam wrote:

quoted

-Add 'standard mode' feature for reads > 255 bytes.
-Add 'smbus block read' functionality.
-Add 'xlnx,axi-iic-2.1' new IP version support.
-Switch to 'AXI I2C standard mode' for i2c reads in affected IP versions.
-Remove 'local_irq_save/restore' calls as discussed here: https://www.spinics.net/lists/linux-i2c/msg46483.html.
-Some trivial fixes.

Changes in v2:
-Grouped the commits as fixes first and then features.
-The first 4 commits fix the dynamic mode broken feature.
-Corrected the indentation in coding style issues.

Michal Simek (1):
   i2c: xiic: Fix coding style issues

Raviteja Narayanam (7):
   i2c: xiic: Fix Tx Interrupt path for grouped messages
   i2c: xiic: Add standard mode support for > 255 byte read transfers
   i2c: xiic: Switch to Xiic standard mode for i2c-read
   i2c: xiic: Remove interrupt enable/disable in Rx path
   dt-bindings: i2c: xiic: Add 'xlnx,axi-iic-2.1' to compatible
   i2c: xiic: Update compatible with new IP version
   i2c: xiic: Add smbus_block_read functionality

Shubhrajyoti Datta (2):
   i2c: xiic: Return value of xiic_reinit
   i2c: xiic: Fix the type check for xiic_wakeup

  .../bindings/i2c/xlnx,xps-iic-2.00.a.yaml     |   4 +-
  drivers/i2c/busses/i2c-xiic.c                 | 593 ++++++++++++++----
  2 files changed, 487 insertions(+), 110 deletions(-)

Acked-by: Michal Simek <redacted>

I just tested this patchset on next-20210716 and the XIIC failures are 
still present, see:

xiic-i2c a0010000.i2c: mmio a0010000 irq 36
xiic-i2c a0120000.i2c: mmio a0120000 irq 38
atmel_mxt_ts 3-004a: supply vdda not found, using dummy regulator
atmel_mxt_ts 3-004a: supply vdd not found, using dummy regulator

xiic-i2c a0120000.i2c: Timeout waiting at Tx empty

atmel_mxt_ts 3-004a: __mxt_read_reg: i2c transfer failed (-5)
atmel_mxt_ts 3-004a: mxt_bootloader_read: i2c recv failed (-5)
atmel_mxt_ts 3-004a: Trying alternate bootloader address
atmel_mxt_ts 3-004a: mxt_bootloader_read: i2c recv failed (-5)
atmel_mxt_ts: probe of 3-004a failed with error -5

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