diff mbox series

[5.4,303/314] drm/i915/icl+: Fix hotplug interrupt disabling after storm detection

Message ID 20200623195353.449491429@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman June 23, 2020, 7:58 p.m. UTC 
From: Imre Deak <imre.deak@intel.com>

commit a3005c2edf7e8c3478880db1ca84028a2b6819bb upstream.

Atm, hotplug interrupts on TypeC ports are left enabled after detecting
an interrupt storm, fix this.

Reported-by: Kunal Joshi <kunal1.joshi@intel.com>
Bugzilla: https://gitlab.freedesktop.org/drm/intel/-/issues/1964
Cc: Kunal Joshi <kunal1.joshi@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200612121731.19596-1-imre.deak@intel.com
(cherry picked from commit 587a87b9d7e94927edcdea018565bc1939381eb1)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/i915/i915_irq.c |    1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -3500,6 +3500,7 @@  static void gen11_hpd_irq_setup(struct d
 
 	val = I915_READ(GEN11_DE_HPD_IMR);
 	val &= ~hotplug_irqs;
+	val |= ~enabled_irqs & hotplug_irqs;
 	I915_WRITE(GEN11_DE_HPD_IMR, val);
 	POSTING_READ(GEN11_DE_HPD_IMR);