This is a note to let you know that I've just added the patch titled
drm/i915: Re-register PMIC bus access notifier on runtime resume
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-i915-re-register-pmic-bus-access-notifier-on-runtime-resume.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 294cf1af8cf2eb0d1eced377fdfb9a2d3f0e8b42 Mon Sep 17 00:00:00 2001
From: Hans de Goede <j.w.r.degoede@xxxxxxxxx>
Date: Tue, 14 Nov 2017 14:55:17 +0100
Subject: drm/i915: Re-register PMIC bus access notifier on runtime resume
From: Hans de Goede <j.w.r.degoede@xxxxxxxxx>
commit 294cf1af8cf2eb0d1eced377fdfb9a2d3f0e8b42 upstream.
intel_uncore_suspend() unregisters the uncore code's PMIC bus access
notifier and gets called on both normal and runtime suspend.
intel_uncore_resume_early() re-registers the notifier, but only on
normal resume. Add a new intel_uncore_runtime_resume() function which
only re-registers the notifier and call that on runtime resume.
Reported-by: Imre Deak <imre.deak@xxxxxxxxx>
Reviewed-by: Imre Deak <imre.deak@xxxxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20171114135518.15981-2-hdegoede@xxxxxxxxxx
(cherry picked from commit bedf4d79c3654921839b62246b0965ddb308b201)
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.c | 2 ++
drivers/gpu/drm/i915/intel_uncore.c | 6 ++++++
drivers/gpu/drm/i915/intel_uncore.h | 1 +
3 files changed, 9 insertions(+)
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -2591,6 +2591,8 @@ static int intel_runtime_resume(struct d
ret = vlv_resume_prepare(dev_priv, true);
}
+ intel_uncore_runtime_resume(dev_priv);
+
/*
* No point of rolling back things in case of an error, as the best
* we can do is to hope that things will still work (and disable RPM).
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -434,6 +434,12 @@ void intel_uncore_resume_early(struct dr
i915_check_and_clear_faults(dev_priv);
}
+void intel_uncore_runtime_resume(struct drm_i915_private *dev_priv)
+{
+ iosf_mbi_register_pmic_bus_access_notifier(
+ &dev_priv->uncore.pmic_bus_access_nb);
+}
+
void intel_uncore_sanitize(struct drm_i915_private *dev_priv)
{
i915.enable_rc6 = sanitize_rc6_option(dev_priv, i915.enable_rc6);
--- a/drivers/gpu/drm/i915/intel_uncore.h
+++ b/drivers/gpu/drm/i915/intel_uncore.h
@@ -121,6 +121,7 @@ bool intel_uncore_arm_unclaimed_mmio_det
void intel_uncore_fini(struct drm_i915_private *dev_priv);
void intel_uncore_suspend(struct drm_i915_private *dev_priv);
void intel_uncore_resume_early(struct drm_i915_private *dev_priv);
+void intel_uncore_runtime_resume(struct drm_i915_private *dev_priv);
u64 intel_uncore_edram_size(struct drm_i915_private *dev_priv);
void assert_forcewakes_inactive(struct drm_i915_private *dev_priv);
Patches currently in stable-queue which might be from j.w.r.degoede@xxxxxxxxx are
queue-4.14/drm-i915-re-register-pmic-bus-access-notifier-on-runtime-resume.patch
queue-4.14/drm-i915-fix-false-positive-assert_rpm_wakelock_held-in-i915_pmic_bus_access_notifier-v2.patch