From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
To: jens.glathe@oldschoolsolutions.biz
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Abel Vesa <abelvesa@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Sebastian Reichel <sre@kernel.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-msm@vger.kernel.org, stable@vger.kernel.org,
"Dr. David Alan Gilbert" <dave@treblig.org>,
Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Subject: Re: [PATCH v3 1/3] usb: typec: mux: ps883x: support TYPEC_DP_STATE_F
Date: Fri, 18 Sep 2026 11:55:06 +0200 [thread overview]
Message-ID: <aq0KeqvmjpMdmfiO@black.igk.intel.com> (raw)
In-Reply-To: <20260916-ps883x-disable-usb4-v3-1-8f19386456d0@oldschoolsolutions.biz>
On Wed, Sep 16, 2026 at 09:36:32PM +0200, Jens Glathe via B4 Relay wrote:
> From: Jens Glathe <jens.glathe@oldschoolsolutions.biz>
>
> Several docks, including the Lenovo 40B0 and SSK SC220, still send the
> legacy TYPEC_DP_STATE_F mode request (deprecated since DisplayPort Alt
> Mode spec version 1.0b).
>
> Group it with TYPEC_DP_STATE_D.
>
> Assisted-by: Grok(xAI):4.6
> Signed-off-by: Jens Glathe <jens.glathe@oldschoolsolutions.biz>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
> ---
> drivers/usb/typec/mux/ps883x.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/usb/typec/mux/ps883x.c b/drivers/usb/typec/mux/ps883x.c
> index 64e0a61b776a1..a5696aef054ee 100644
> --- a/drivers/usb/typec/mux/ps883x.c
> +++ b/drivers/usb/typec/mux/ps883x.c
> @@ -207,6 +207,7 @@ static int ps883x_set(struct ps883x_retimer *retimer, struct typec_retimer_state
>
> switch (state->mode) {
> case TYPEC_DP_STATE_D:
> + case TYPEC_DP_STATE_F:
> cfg0 |= CONN_STATUS_0_USB_3_1_CONNECTED;
> fallthrough;
> case TYPEC_DP_STATE_C:
>
> --
> 2.53.0
>
--
heikki
next prev parent reply other threads:[~2026-09-18 9:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-16 19:36 [PATCH v3 0/3] usb: typec: ps883x: fixes for older Thunderbolt 4 / USB4 docks Jens Glathe via B4 Relay
2026-09-16 19:36 ` [PATCH v3 1/3] usb: typec: mux: ps883x: support TYPEC_DP_STATE_F Jens Glathe via B4 Relay
2026-09-18 9:55 ` Heikki Krogerus [this message]
2026-09-16 19:36 ` [PATCH v3 2/3] usb: typec: mux: ps883x: add a delay after writing config regs Jens Glathe via B4 Relay
2026-09-18 9:55 ` Heikki Krogerus
2026-09-16 19:36 ` [PATCH v3 3/3] usb: typec: mux: ps883x: disable USB4 on incomplete USB4 platforms Jens Glathe via B4 Relay
2026-09-18 9:56 ` Heikki Krogerus
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