Re: [PATCH v2 2/2] usb: typec: ucsi: itepd: Add DisplayPort alternate mode support

[Heikki Krogerus]

On Fri, Sep 18, 2026 at 06:03:44PM +0800, Amber Kao wrote:
> Add support for DisplayPort alternate mode. The driver retrieves
> the current alternate mode from the PPM, configures the Type-C mux
> and retimer accordingly, and reports HPD state and HPD IRQ events
> through the DRM auxiliary HPD bridge.
> 
> Signed-off-by: Amber Kao <ite_pd@xxxxxxxxxx>
> ---
>  drivers/usb/typec/ucsi/Kconfig      |   8 +-
>  drivers/usb/typec/ucsi/ucsi_itepd.c | 404 +++++++++++++++++++++++++++++++++++-
>  2 files changed, 400 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/usb/typec/ucsi/Kconfig b/drivers/usb/typec/ucsi/Kconfig
> index 0f10dac9b34b..c5eaf4967e4e 100644
> --- a/drivers/usb/typec/ucsi/Kconfig
> +++ b/drivers/usb/typec/ucsi/Kconfig
> @@ -105,11 +105,15 @@ config UCSI_HUAWEI_GAOKUN
>  	  called ucsi_huawei_gaokun.
>  
>  config UCSI_ITEPD
> -	tristate "UCSI Interface Driver for ITE IT8851/IT8853"
> +	tristate "UCSI Interface Driver for ITE IT885x and IT527x series"
>  	depends on I2C
> +	depends on DRM || !DRM
> +	select DRM_AUX_HPD_BRIDGE if DRM_BRIDGE && OF
>  	help
>  	  This driver enables UCSI support on platforms that expose an
> -	  ITE IT8851/IT8853 Type-C Power Delivery controller over an I2C interface.
> +	  ITE IT885x or IT527x series Type-C Power Delivery controller
> +	  over an I2C interface. It also supports DisplayPort alternate
> +	  mode, including HPD notification through the DRM bridge.

Please split this part into separate patch.

Thanks,

-- 
heikki