Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Pi-Hsun Shih <pihsun@chromium.org>
Cc:     Pi-Hsun Shih <pihsun@chromium.org>,
        Tzung-Bi Shih <tzungbi@google.com>,
        Andrzej Hajda <a.hajda@samsung.com>,
        Neil Armstrong <narmstrong@baylibre.com>,
        Robert Foss <robert.foss@linaro.org>,
        Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
        Jonas Karlman <jonas@kwiboo.se>,
        Jernej Skrabec <jernej.skrabec@siol.net>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>, Xin Ji <xji@analogixsemi.com>,
        Sam Ravnborg <sam@ravnborg.org>,
        Hsin-Yi Wang <hsinyi@chromium.org>,
        dri-devel@lists.freedesktop.org (open list:DRM DRIVERS),
        linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 2/2] drm/bridge: anx7625: add suspend / resume hooks
Date:   Fri,  7 May 2021 14:35:48 +0800
Message-Id: <20210507063620.390280-2-pihsun@chromium.org>
In-Reply-To: <20210507063620.390280-1-pihsun@chromium.org>
References: <20210507063620.390280-1-pihsun@chromium.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
To:     unlisted-recipients:; (no To-header on input)
Precedence: bulk

Add suspend / resume hooks for anx7625 driver, that power off the device
on suspend and power on the device on resume if it was previously
powered.

Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Change-Id: I62122cc2a4eafdfce4859cbb419edc39875ebe3b
---
 drivers/gpu/drm/bridge/analogix/anx7625.c | 27 +++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
index 0d90cd63fc27..dd23db9bc3d4 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -1705,7 +1705,34 @@ 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))
+		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);
+
+	return 0;
+}
+
 static const struct dev_pm_ops anx7625_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(anx7625_suspend, anx7625_resume) \
 	SET_RUNTIME_PM_OPS(anx7625_runtime_pm_suspend, anx7625_runtime_pm_resume, NULL)
 };
 
-- 
2.31.1.607.g51e8a6a459-goog