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From: Nguyen An Hoan <na-hoan@jinso.co.jp>
To: linux-renesas-soc@vger.kernel.org, geert+renesas@glider.be,
	laurent.pinchart@ideasonboard.com,
	kieran.bingham+renesas@ideasonboard.com
Cc: kuninori.morimoto.gx@renesas.com,
	yoshihiro.shimoda.uh@renesas.com, h-inayoshi@jinso.co.jp,
	nv-dung@jinso.co.jp, na-hoan@jinso.co.jp, cv-dong@jinso.co.jp
Subject: [PATCH 2/2] drm: rcar-du: Add Standby Mode to suspend()
Date: Fri, 14 Dec 2018 16:25:18 +0900
Message-ID: <1544772318-17408-2-git-send-email-na-hoan@jinso.co.jp> (raw)
In-Reply-To: <1544772318-17408-1-git-send-email-na-hoan@jinso.co.jp>

From: Hoan Nguyen An <na-hoan@jinso.co.jp>

Enter Standby Mode before suspend by drm
We will not need to "Release from Module Standby Mode"
because after resume() is called, this is done.

Signed-off-by: Hoan Nguyen An <na-hoan@jinso.co.jp>
---
 drivers/gpu/drm/rcar-du/rcar_du_drv.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
index 32dba13..1ab3f56 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -426,6 +426,20 @@ static struct drm_driver rcar_du_driver = {
 static int rcar_du_pm_suspend(struct device *dev)
 {
 	struct rcar_du_device *rcdu = dev_get_drvdata(dev);
+	int ret;
+	unsigned int i = 0;
+
+	for (i = 0; i < rcdu->num_crtcs; i++)
+	{
+		struct rcar_du_crtc *rcrtc = &rcdu->crtcs[i];
+
+		ret = rcar_du_crtc_standby(rcrtc);
+		if(ret)
+		{
+			dev_err(dev, "failed to enter Standby mode\n");
+			return ret;
+		}
+	}
 
 	return drm_mode_config_helper_suspend(rcdu->ddev);
 }
-- 
2.7.4


  reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-14  7:25 [PATCH 1/2] drm: rcar-du: Add Standby Mode support Nguyen An Hoan
2018-12-14  7:25 ` Nguyen An Hoan [this message]
2018-12-14  8:15   ` [PATCH 2/2] drm: rcar-du: Add Standby Mode to suspend() Laurent Pinchart
2018-12-14  8:47 ` [PATCH 1/2] drm: rcar-du: Add Standby Mode support Sergei Shtylyov
2018-12-14 19:06 ` Geert Uytterhoeven

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