linux-kernel - Re: [PATCH] usb: typec: ucsi: fix UCSI on SM8550 & SM8650 Qualcomm devices

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Message-ID: <ZdxPg0+DHX7/zede@kuha.fi.intel.com>
Date: Mon, 26 Feb 2024 10:44:51 +0200
From: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To: Neil Armstrong <neil.armstrong@...aro.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH] usb: typec: ucsi: fix UCSI on SM8550 & SM8650 Qualcomm
 devices

On Fri, Feb 23, 2024 at 10:40:40AM +0100, Neil Armstrong wrote:
> On SM8550 and SM8650 Qualcomm platforms a call to UCSI_GET_PDOS for
> non-PD partners will cause a firmware crash with no
> easy way to recover from it.
> 
> Add UCSI_NO_PARTNER_PDOS quirk for those platform until we find
> a way to properly handle the crash.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>

Reviewed-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

> ---
>  drivers/usb/typec/ucsi/ucsi_glink.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/usb/typec/ucsi/ucsi_glink.c b/drivers/usb/typec/ucsi/ucsi_glink.c
> index 0bd3f6dee678..932e7bf69447 100644
> --- a/drivers/usb/typec/ucsi/ucsi_glink.c
> +++ b/drivers/usb/typec/ucsi/ucsi_glink.c
> @@ -302,6 +302,7 @@ static const struct of_device_id pmic_glink_ucsi_of_quirks[] = {
>  	{ .compatible = "qcom,sc8180x-pmic-glink", .data = (void *)UCSI_NO_PARTNER_PDOS, },
>  	{ .compatible = "qcom,sc8280xp-pmic-glink", .data = (void *)UCSI_NO_PARTNER_PDOS, },
>  	{ .compatible = "qcom,sm8350-pmic-glink", .data = (void *)UCSI_NO_PARTNER_PDOS, },
> +	{ .compatible = "qcom,sm8550-pmic-glink", .data = (void *)UCSI_NO_PARTNER_PDOS, },
>  	{}
>  };
>  
> 
> ---
> base-commit: 33e1d31873f87d119e5120b88cd350efa68ef276
> change-id: 20240223-topic-sm8550-upstream-ucsi-no-pdos-62fdad669f90
> 
> Best regards,
> -- 
> Neil Armstrong <neil.armstrong@...aro.org>

-- 
heikki