[PATCH v7 0/5] drm/xe: i2c support

[Rodrigo Vivi]

On Thu, Jul 10, 2025 at 12:46:07PM +0530, Raag Jadav wrote:
> Hi,
> 
> On behalf of Heikki, since he's on vacation.

ops, I'm really sorry that I had missed this.
The first think I did this morning was to merge his series,
changing while merging, once I heard he was out on vacation.

But thank you so much for sending this as well.

> 
> Changed since v6:
> - Fix SPDX checkpatch warning.
> 
> Changed since v5:
> - The modification to the dw_i2c_plat_probe() is split into its own
>   patch as proposed by Andi.
> - I removed completely the comment from the last patch in the series
>   ("drm/xe/xe_i2c: Add support for i2c in survivability mode").
> 
> Changed since v4:
> - Cleanups requested by Andy.
> - Casting the PCI power modes to make sparse happy - Raag.
> - Limiting the use of this thing to Battlemage again. But I'm not sure
>   if this is the correct thing to do.
> 
> Changed since v3:
> - Cleanups as requested by Rodrigo.
> - The licence is now changed, but still need confirmation for it!
> 
> Changed since v2:
> - Added dependency on regmap when i2c is enabled.
> 
> Changed since v1:
> - Now rebased on top of drm-tip.
> - No longer ignoring errors from xe_i2c_probe().
> - Cleanups pointed out by Lucas.
> 
> I've also included followup patches from Raag and Riana to this
> series.
> 
> Original cover letter:
> 
> Some of the future GPUs will provide access to the on-board Synopsys
> DesignWare I2C host adapter. The i2c is used to connect various
> microcontrollers. The initially supported microcontroller unit is
> called Add-In Management Controller (AMC).
> 
> Thanks,
> 
> Heikki Krogerus (3):
>   i2c: designware: Use polling by default when there is no irq resource
>   i2c: designware: Add quirk for Intel Xe
>   drm/xe: Support for I2C attached MCUs
> 
> Raag Jadav (1):
>   drm/xe/pm: Wire up suspend/resume for I2C controller
> 
> Riana Tauro (1):
>   drm/xe/xe_i2c: Add support for i2c in survivability mode
> 
>  drivers/gpu/drm/xe/Kconfig                  |   1 +
>  drivers/gpu/drm/xe/Makefile                 |   1 +
>  drivers/gpu/drm/xe/regs/xe_i2c_regs.h       |  20 ++
>  drivers/gpu/drm/xe/regs/xe_irq_regs.h       |   1 +
>  drivers/gpu/drm/xe/regs/xe_pmt.h            |   2 +-
>  drivers/gpu/drm/xe/regs/xe_regs.h           |   2 +
>  drivers/gpu/drm/xe/xe_device.c              |   5 +
>  drivers/gpu/drm/xe/xe_device_types.h        |   4 +
>  drivers/gpu/drm/xe/xe_i2c.c                 | 329 ++++++++++++++++++++
>  drivers/gpu/drm/xe/xe_i2c.h                 |  62 ++++
>  drivers/gpu/drm/xe/xe_irq.c                 |   2 +
>  drivers/gpu/drm/xe/xe_pm.c                  |   9 +
>  drivers/gpu/drm/xe/xe_survivability_mode.c  |  19 +-
>  drivers/i2c/busses/i2c-designware-platdrv.c |  18 +-
>  14 files changed, 460 insertions(+), 15 deletions(-)
>  create mode 100644 drivers/gpu/drm/xe/regs/xe_i2c_regs.h
>  create mode 100644 drivers/gpu/drm/xe/xe_i2c.c
>  create mode 100644 drivers/gpu/drm/xe/xe_i2c.h
> 
> -- 
> 2.34.1
>