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Message-ID: <Y74bEyUOT3mrAY+I@google.com>
Date: Tue, 10 Jan 2023 18:12:35 -0800
From: Benson Leung <bleung@...gle.com>
To: Prashant Malani <pmalani@...omium.org>
Cc: linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
bleung@...omium.org, stable@...r.kernel.org,
Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Guillaume Ranquet <granquet@...libre.com>,
Macpaul Lin <macpaul.lin@...iatek.com>,
Pablo Sun <pablo.sun@...iatek.com>
Subject: Re: [PATCH 2/3] usb: typec: altmodes/displayport: Fix pin assignment
calculation
On Wed, Jan 11, 2023 at 02:05:42AM +0000, Prashant Malani wrote:
> Commit c1e5c2f0cb8a ("usb: typec: altmodes/displayport: correct pin
> assignment for UFP receptacles") fixed the pin assignment calculation
> to take into account whether the peripheral was a plug or a receptacle.
>
> But the "pin_assignments" sysfs logic was not updated. Address this by
> using the macros introduced in the aforementioned commit in the sysfs
> logic too.
>
> Fixes: c1e5c2f0cb8a ("usb: typec: altmodes/displayport: correct pin assignment for UFP receptacles")
> Cc: stable@...r.kernel.org
> Cc: Heikki Krogerus <heikki.krogerus@...ux.intel.com>
> Signed-off-by: Prashant Malani <pmalani@...omium.org>
Reviewed-by: Benson Leung <bleung@...omium.org>
> ---
> drivers/usb/typec/altmodes/displayport.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c
> index f9d4a7648bc9..c0d65c93cefe 100644
> --- a/drivers/usb/typec/altmodes/displayport.c
> +++ b/drivers/usb/typec/altmodes/displayport.c
> @@ -427,9 +427,9 @@ static const char * const pin_assignments[] = {
> static u8 get_current_pin_assignments(struct dp_altmode *dp)
> {
> if (DP_CONF_CURRENTLY(dp->data.conf) == DP_CONF_DFP_D)
> - return DP_CAP_UFP_D_PIN_ASSIGN(dp->alt->vdo);
> + return DP_CAP_PIN_ASSIGN_DFP_D(dp->alt->vdo);
> else
> - return DP_CAP_DFP_D_PIN_ASSIGN(dp->alt->vdo);
> + return DP_CAP_PIN_ASSIGN_UFP_D(dp->alt->vdo);
> }
>
> static ssize_t
> --
> 2.39.0.314.g84b9a713c41-goog
>
--
Benson Leung
Staff Software Engineer
Chrome OS Kernel
Google Inc.
bleung@...gle.com
Chromium OS Project
bleung@...omium.org
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