Re: [PATCH 6.18 190/333] drm/bridge: ti-sn65dsi86: Enable HPD polling if IRQ is not used

Greg Kroah-Hartman
2026-03-18T11:52:54Z

On Wed, Mar 18, 2026 at 08:37:54AM +0100, Francesco Dolcini wrote:
> Hello Greg,
>
> On Tue, Mar 17, 2026 at 05:33:39PM +0100, Greg Kroah-Hartman wrote:
> > 6.18-stable review patch. If anyone has any objections, please let me know.
> >
> > ------------------
> >
> > From: Franz Schnyder <franz.schnyder@toradex.com>
> >
> > commit 0b87d51690dd5131cbe9fbd23746b037aab89815 upstream.
> >
> > Fallback to polling to detect hotplug events on systems without
> > interrupts.
> >
> > On systems where the interrupt line of the bridge is not connected,
> > the bridge cannot notify hotplug events. Only add the
> > DRM_BRIDGE_OP_HPD flag if an interrupt has been registered
> > otherwise remain in polling mode.
> >
> > Fixes: 55e8ff842051 ("drm/bridge: ti-sn65dsi86: Add HPD for DisplayPort connector type")
> > Cc: stable@vger.kernel.org # 6.16: 9133bc3f0564: drm/bridge: ti-sn65dsi86: Add
> > Signed-off-by: Franz Schnyder <franz.schnyder@toradex.com>
> > Reviewed-by: Douglas Anderson <dianders@chromium.org>
> > [dianders: Adjusted Fixes/stable line based on discussion]
> > Signed-off-by: Douglas Anderson <dianders@chromium.org>
> > Link: https://patch.msgid.link/20260206123758.374555-1-fra.schnyder@gmail.com
> > Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>
> Please queue also commit 9133bc3f0564 ("drm/bridge: ti-sn65dsi86: Add
> support for DisplayPort mode with HPD"), it is a pre-requisite for this
> one.

Now queued up.

thanks,

greg k-h