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drm/i915/icl+: Fix hotplug interrupt disabling after storm detection

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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>
References: https://gitlab.freedesktop.org/drm/intel/-/issues/351
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>
This commit is contained in:
Imre Deak 2020-06-12 15:17:31 +03:00 committed by Greg Kroah-Hartman
parent d814e4732c
commit 021935185e
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/i915/i915_irq.c
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@ -3500,6 +3500,7 @@ static void gen11_hpd_irq_setup(struct drm_i915_private *dev_priv)
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);