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Date: Mon, 15 Aug 2011 19:43:06 -0700 From: Greg KH <gregkh@...e.de> To: linux-kernel@...r.kernel.org, stable@...nel.org Cc: stable-review@...nel.org, torvalds@...ux-foundation.org, akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk, Alex Deucher <alexander.deucher@....com>, Dave Airlie <airlied@...hat.com> Subject: [23/26] drm/radeon/kms: dont enable connectors that are off in the 3.0-stable review patch. If anyone has any objections, please let us know. ------------------ hotplug handler From: Alex Deucher <alexander.deucher@....com> commit 73104b5cfe3067d68f2c2de3f3d4d4964c55873e upstream. If we get a hotplug event on an connector that is off, don't attempt to turn it on or off, it should already be off. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=728228 Signed-off-by: Alex Deucher <alexander.deucher@....com> Signed-off-by: Dave Airlie <airlied@...hat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de> --- drivers/gpu/drm/radeon/radeon_connectors.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -60,6 +60,10 @@ void radeon_connector_hotplug(struct drm radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd); + /* if the connector is already off, don't turn it back on */ + if (connector->dpms != DRM_MODE_DPMS_ON) + return; + /* powering up/down the eDP panel generates hpd events which * can interfere with modesetting. */ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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