From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Mon, 11 Jun 2018 14:25:00 +0200
Subject: drm/exynos: Ensure suspended runtime PM state during system suspend
Git-commit: 7e915746de03e0e62d58491f22805cc5a80a581a
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Add calls to pm_runtime_force_{suspend,resume} as SYSTEM_SLEEP_PM_OPS for
all drivers for the real Exynos DRM hardware modules. This ensures that
the resources will be released for the system PM suspend/resume cycle.
Exynos DRM core already takes care of suspending the whole display pipeline
before PM callbacks of the real devices are called.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/exynos/exynos5433_drm_decon.c |    2 ++
 drivers/gpu/drm/exynos/exynos7_drm_decon.c    |    2 ++
 drivers/gpu/drm/exynos/exynos_dp.c            |    3 +++
 drivers/gpu/drm/exynos/exynos_drm_dsi.c       |    2 ++
 drivers/gpu/drm/exynos/exynos_drm_fimd.c      |    2 ++
 drivers/gpu/drm/exynos/exynos_drm_mic.c       |    2 ++
 drivers/gpu/drm/exynos/exynos_hdmi.c          |    2 ++
 drivers/gpu/drm/exynos/exynos_mixer.c         |    2 ++
 8 files changed, 17 insertions(+)

--- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
+++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
@@ -673,6 +673,8 @@ err:
 static const struct dev_pm_ops exynos5433_decon_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos5433_decon_suspend, exynos5433_decon_resume,
 			   NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				     pm_runtime_force_resume)
 };
 
 static const struct of_device_id exynos5433_decon_driver_dt_match[] = {
--- a/drivers/gpu/drm/exynos/exynos7_drm_decon.c
+++ b/drivers/gpu/drm/exynos/exynos7_drm_decon.c
@@ -832,6 +832,8 @@ static int exynos7_decon_resume(struct d
 static const struct dev_pm_ops exynos7_decon_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos7_decon_suspend, exynos7_decon_resume,
 			   NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 };
 
 struct platform_driver decon_driver = {
--- a/drivers/gpu/drm/exynos/exynos_dp.c
+++ b/drivers/gpu/drm/exynos/exynos_dp.c
@@ -16,6 +16,7 @@
 #include <linux/clk.h>
 #include <linux/of_graph.h>
 #include <linux/component.h>
+#include <linux/pm_runtime.h>
 #include <video/of_display_timing.h>
 #include <video/of_videomode.h>
 #include <video/videomode.h>
@@ -278,6 +279,8 @@ static int exynos_dp_resume(struct devic
 
 static const struct dev_pm_ops exynos_dp_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos_dp_suspend, exynos_dp_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 };
 
 static const struct of_device_id exynos_dp_match[] = {
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1863,6 +1863,8 @@ err_clk:
 
 static const struct dev_pm_ops exynos_dsi_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos_dsi_suspend, exynos_dsi_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 };
 
 struct platform_driver dsi_driver = {
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -1192,6 +1192,8 @@ static int exynos_fimd_resume(struct dev
 
 static const struct dev_pm_ops exynos_fimd_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos_fimd_suspend, exynos_fimd_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 };
 
 struct platform_driver fimd_driver = {
--- a/drivers/gpu/drm/exynos/exynos_drm_mic.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_mic.c
@@ -367,6 +367,8 @@ static int exynos_mic_resume(struct devi
 
 static const struct dev_pm_ops exynos_mic_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos_mic_suspend, exynos_mic_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 };
 
 static int exynos_mic_probe(struct platform_device *pdev)
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -2093,6 +2093,8 @@ static int __maybe_unused exynos_hdmi_re
 
 static const struct dev_pm_ops exynos_hdmi_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos_hdmi_suspend, exynos_hdmi_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 };
 
 struct platform_driver hdmi_driver = {
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -1271,6 +1271,8 @@ static int __maybe_unused exynos_mixer_r
 
 static const struct dev_pm_ops exynos_mixer_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos_mixer_suspend, exynos_mixer_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 };
 
 struct platform_driver mixer_driver = {