Re: [PATCH v14 0/4] Add Intel LJCA device driver

[Hans de Goede <hdegoede@redhat.com>]

Hi,

On 9/4/23 07:44, Wentong Wu wrote:
> Add driver for Intel La Jolla Cove Adapter (LJCA) device. This
> IO-expander expands additional functions to the host system
> such as GPIO, I2C and SPI with USB host interface. We add 4
> drivers to support this device: a USB driver, a GPIO chip driver,
> a I2C controller driver and a SPI controller driver.
> 
> ---
> v14:
>  - fix build error: implicit declaration of function 'acpi_dev_clear_dependencies'
> 
> v13:
>  - make ljca-usb more robust with the help of Hans de Goede
>  - call acpi_dev_clear_dependencies() to mark _DEP ACPI dependencies on the I2C controller as satisfied, and patch is from Hans de Goede

Thank you I can confirm that v14 works well on my ThinkPad x1 yoga gen 8:

Tested-by: Hans de Goede <hdegoede@redhat.com>

Note I still have one small remark for patch 1/4, I'll reply to
the patch itself with the remark.

Regards,

Hans

> 
> v12:
>  - switch dev_err to dev_dbg for i2c-ljca driver
>  - avoid err printing because of calling usb_kill_urb when attempts to resubmit the rx urb
> 
> v11:
>  - switch dev_err to dev_dbg for i2c-ljca driver
>  - remove message length check because of defined quirk structure
>  - remove I2C_FUNC_SMBUS_EMUL support
> 
> v10:
>  - remove ljca_i2c_format_slave_addr
>  - remove memset before write write w_packet
>  - make ljca_i2c_stop void and print err message in case failure
>  - use dev_err_probe in ljca_i2c_probe function
> 
> v9:
>  - overhaul usb-ljca driver to make it more structured and easy understand
>  - fix memory leak issue for usb-ljca driver
>  - add spinlock to protect tx_buf and ex_buf
>  - change exported APIs for usb-ljca driver
>  - unify prefix for structures and functions for i2c-ljca driver
>  - unify prefix for structures and functions for spi-ljca driver
>  - unify prefix for structures and functions for gpio-ljca driver
>  - update gpio-ljca, i2c-ljca and spi-ljca drivers according to usb-ljca's changes
> 
> Wentong Wu (4):
>   usb: Add support for Intel LJCA device
>   i2c: Add support for Intel LJCA USB I2C driver
>   spi: Add support for Intel LJCA USB SPI driver
>   gpio: update Intel LJCA USB GPIO driver
> 
>  drivers/gpio/Kconfig          |   4 +-
>  drivers/gpio/gpio-ljca.c      | 246 +++++++------
>  drivers/i2c/busses/Kconfig    |  11 +
>  drivers/i2c/busses/Makefile   |   1 +
>  drivers/i2c/busses/i2c-ljca.c | 334 +++++++++++++++++
>  drivers/spi/Kconfig           |  11 +
>  drivers/spi/Makefile          |   1 +
>  drivers/spi/spi-ljca.c        | 297 +++++++++++++++
>  drivers/usb/misc/Kconfig      |  14 +
>  drivers/usb/misc/Makefile     |   1 +
>  drivers/usb/misc/usb-ljca.c   | 834 ++++++++++++++++++++++++++++++++++++++++++
>  include/linux/usb/ljca.h      | 113 ++++++
>  12 files changed, 1762 insertions(+), 105 deletions(-)
>  create mode 100644 drivers/i2c/busses/i2c-ljca.c
>  create mode 100644 drivers/spi/spi-ljca.c
>  create mode 100644 drivers/usb/misc/usb-ljca.c
>  create mode 100644 include/linux/usb/ljca.h
>