Re: [PATCH 0/3] usb: typec: ucsi: continue rework of command interface

From: Heikki Krogerus
Date: Tue Jan 28 2025 - 03:27:16 EST


On Fri, Jan 17, 2025 at 12:49:40PM +0200, Dmitry Baryshkov wrote:
> There are cases when UCSI drivers either want to mangle UCSI commands or
> its response or to completely emulate some of the commands in software.
> Currently code to handle such situations is split between sync_control(),
> read_cci() and read_message_in() callbacks.
>
> Make sync_control() also return CCI and MESSAGE_IN data, simplifying
> this kind of handling. This series reworks CCG driver and LG Gram
> quirks. If the approach is considered to be acceptable, it will be used
> to emulate AltMode support in the GLINK and Yoga C630 drivers: on these
> platforms DisplayPort AltMode is handled via the non-UCSI messages,
> however in the past reviewers suggested reusing UCSI displayport driver
> and just emulate necessary commands (mostly GET_CURRENT_CAM).

This is okay by me. For the lot:

Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>

> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
> ---
> Dmitry Baryshkov (3):
> usb: typec: ucsi: return CCI and message from sync_control callback
> usb: typec: ucsi: ccg: move command quirks to ucsi_ccg_sync_control()
> usb: typec: ucsi: acpi: move LG Gram quirk to ucsi_gram_sync_control()
>
> drivers/usb/typec/ucsi/ucsi.c | 19 ++++++-----
> drivers/usb/typec/ucsi/ucsi.h | 6 ++--
> drivers/usb/typec/ucsi/ucsi_acpi.c | 29 +++++------------
> drivers/usb/typec/ucsi/ucsi_ccg.c | 67 ++++++++++++++++++--------------------
> 4 files changed, 56 insertions(+), 65 deletions(-)
> ---
> base-commit: e7bb221a638962d487231ac45a6699fb9bb8f9fa
> change-id: 20250116-ucsi-merge-commands-f2f6f5c93466
>
> Best regards,
> --
> Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>

--
heikki