linux-kernel - [PATCH] drm/bridge: anx7625: use pm_runtime_force

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Date:   Tue, 28 Jun 2022 18:46:50 +0800
From:   Hsin-Yi Wang <hsinyi@...omium.org>
To:     Robert Foss <robert.foss@...aro.org>, Xin Ji <xji@...logixsemi.com>
Cc:     Andrzej Hajda <andrzej.hajda@...el.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Jonas Karlman <jonas@...boo.se>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Sam Ravnborg <sam@...nborg.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Maxime Ripard <maxime@...no.tech>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/bridge: anx7625: use pm_runtime_force_suspend(resume)

There's no need to check for IRQ or disable it in suspend.

Use pm_runtime_force_suspend(resume) to make sure anx7625 is powered off
correctly. Make the system suspend/resume and pm runtime suspend/resume
more consistant.

Signed-off-by: Hsin-Yi Wang <hsinyi@...omium.org>
---
 drivers/gpu/drm/bridge/analogix/anx7625.c | 33 ++---------------------
 1 file changed, 2 insertions(+), 31 deletions(-)

diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
index 3710fa9ee0acd..09688a1076037 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -2542,38 +2542,9 @@ static int __maybe_unused anx7625_runtime_pm_resume(struct device *dev)
 	return 0;
 }
 
-static int __maybe_unused anx7625_resume(struct device *dev)
-{
-	struct anx7625_data *ctx = dev_get_drvdata(dev);
-
-	if (!ctx->pdata.intp_irq)
-		return 0;
-
-	if (!pm_runtime_enabled(dev) || !pm_runtime_suspended(dev)) {
-		enable_irq(ctx->pdata.intp_irq);
-		anx7625_runtime_pm_resume(dev);
-	}
-
-	return 0;
-}
-
-static int __maybe_unused anx7625_suspend(struct device *dev)
-{
-	struct anx7625_data *ctx = dev_get_drvdata(dev);
-
-	if (!ctx->pdata.intp_irq)
-		return 0;
-
-	if (!pm_runtime_enabled(dev) || !pm_runtime_suspended(dev)) {
-		anx7625_runtime_pm_suspend(dev);
-		disable_irq(ctx->pdata.intp_irq);
-	}
-
-	return 0;
-}
-
 static const struct dev_pm_ops anx7625_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(anx7625_suspend, anx7625_resume)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 	SET_RUNTIME_PM_OPS(anx7625_runtime_pm_suspend,
 			   anx7625_runtime_pm_resume, NULL)
 };
-- 
2.37.0.rc0.161.g10f37bed90-goog