From: Ayan Kumar Halder <ayan.halder@arm.com>
To: ayan.halder@arm.com, liviu.dudau@arm.com, brian.starkey@arm.com,
malidp@foss.arm.com, airlied@linux.ie,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Cc: nd@arm.com
Subject: [PATCH 8/8] drm/arm/malidp: Added the late system pm functions
Date: Mon, 26 Mar 2018 18:03:20 +0100 [thread overview]
Message-ID: <1522083800-30100-9-git-send-email-ayan.halder@arm.com> (raw)
In-Reply-To: <1522083800-30100-1-git-send-email-ayan.halder@arm.com>
malidp_pm_suspend_late checks if the runtime status is not suspended
and if so, invokes malidp_runtime_pm_suspend which disables the
display engine/core interrupts and the clocks. It sets the runtime status
as suspended. Subsequently, malidp_pm_resume_early will invoke
malidp_runtime_pm_resume which enables the clocks and the interrupts
(previously disabled) and sets the runtime status as active.
Signed-off-by: Ayan Kumar Halder <ayan.halder@arm.com>
Change-Id: I5f8c3d28f076314a1c9da2a46760a9c37039ccda
---
drivers/gpu/drm/arm/malidp_drv.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
index bd44a6d..f6124d8 100644
--- a/drivers/gpu/drm/arm/malidp_drv.c
+++ b/drivers/gpu/drm/arm/malidp_drv.c
@@ -766,8 +766,25 @@ static int __maybe_unused malidp_pm_resume(struct device *dev)
return 0;
}
+static int __maybe_unused malidp_pm_suspend_late(struct device *dev)
+{
+ if (!pm_runtime_status_suspended(dev)) {
+ malidp_runtime_pm_suspend(dev);
+ pm_runtime_set_suspended(dev);
+ }
+ return 0;
+}
+
+static int __maybe_unused malidp_pm_resume_early(struct device *dev)
+{
+ malidp_runtime_pm_resume(dev);
+ pm_runtime_set_active(dev);
+ return 0;
+}
+
static const struct dev_pm_ops malidp_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(malidp_pm_suspend, malidp_pm_resume) \
+ SET_LATE_SYSTEM_SLEEP_PM_OPS(malidp_pm_suspend_late, malidp_pm_resume_early) \
SET_RUNTIME_PM_OPS(malidp_runtime_pm_suspend, malidp_runtime_pm_resume, NULL)
};
--
2.7.4
next prev parent reply other threads:[~2018-03-26 17:04 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-26 17:03 [PATCH 0/8] drm/arm/malidp: Enhance support for system and runtime power management on malidp Ayan Kumar Halder
2018-03-26 17:03 ` [PATCH 1/8] drm/arm/malidp: Modified the prototype of malidp_de_irq_fini Ayan Kumar Halder
2018-03-26 17:03 ` [PATCH 2/8] drm/arm/malidp: Modified the prototype of malidp_se_irq_fini Ayan Kumar Halder
2018-03-26 17:03 ` [PATCH 3/8] drm/arm/malidp: Split malidp_de_irq_init Ayan Kumar Halder
2018-03-26 17:03 ` [PATCH 4/8] drm/arm/malidp: Split malidp_se_irq_init Ayan Kumar Halder
2018-03-26 17:03 ` [PATCH 5/8] drm/arm/malidp: Enable/disable interrupts in runtime pm Ayan Kumar Halder
2018-03-26 17:03 ` [PATCH 6/8] drm/arm/malidp: Enable/disable the scaling engine interrupts with memory writeback Ayan Kumar Halder
2018-03-26 17:03 ` [PATCH 7/8] drm/arm/malidp: Set the output_depth register in modeset Ayan Kumar Halder
2018-03-26 17:03 ` Ayan Kumar Halder [this message]
2018-03-27 8:29 ` [PATCH 8/8] drm/arm/malidp: Added the late system pm functions Daniel Vetter
2018-03-27 9:59 ` Ayan Halder
2018-03-27 11:09 ` Daniel Vetter
2018-04-06 19:02 ` Ayan Halder
2018-04-09 8:23 ` Daniel Vetter
2018-04-09 16:15 ` Brian Starkey
2018-04-13 15:44 ` Daniel Vetter
2018-04-13 16:02 ` Brian Starkey
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