On Tue, Mar 27, 2018 at 10:29:03AM +0200, Daniel Vetter wrote:
On Mon, Mar 26, 2018 at 06:03:20PM +0100, Ayan Kumar Halder wrote:
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
Why exactly do you need late/early hooks? If you have dependencies with other devices, pls consider adding device_links instead. This here shouldn't be necessary. -Daniel
We need to late/early hooks to disable malidp interrupts and the clocks.
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
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-- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
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