From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Mon, 23 Jan 2012 11:23:08 +0000 (+0200)
Subject: OMAPDSS: use sync versions of pm_runtime_put
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0eaf9f52e94f756147dbfe1faf1f77a02378dbf9;p=linux-beck.git

OMAPDSS: use sync versions of pm_runtime_put

omapdss doesn't work properly on system suspend. The problem seems to be
the fact that omapdss uses pm_runtime_put() functions when turning off
the hardware, and when system suspend is in process only sync versions
are allowed.

Using non-sync versions normally and sync versions when suspending would
need rather ugly hacks to convey the information of
suspending/not-suspending to different functions. Optimally the driver
wouldn't even need to care about this, and the PM layer would handle
syncing when suspend is in process.

This patch changes all omapdss's pm_runtime_put calls to
pm_runtime_put_sync. This fixes the suspend problem, and probably the
performance penalty of always using sync versions is negligible.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Kevin Hilman <khilman@ti.com>
---

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index a5ec7f37c185..e1626a1d5c45 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -401,7 +401,7 @@ void dispc_runtime_put(void)
 
 	DSSDBG("dispc_runtime_put\n");
 
-	r = pm_runtime_put(&dispc.pdev->dev);
+	r = pm_runtime_put_sync(&dispc.pdev->dev);
 	WARN_ON(r < 0);
 }
 
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 511ae2a7add8..04a89a7bbaf5 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -1079,7 +1079,7 @@ void dsi_runtime_put(struct platform_device *dsidev)
 
 	DSSDBG("dsi_runtime_put\n");
 
-	r = pm_runtime_put(&dsi->pdev->dev);
+	r = pm_runtime_put_sync(&dsi->pdev->dev);
 	WARN_ON(r < 0);
 }
 
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 17033457ee89..77c2b5a32b5d 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -720,7 +720,7 @@ void dss_runtime_put(void)
 
 	DSSDBG("dss_runtime_put\n");
 
-	r = pm_runtime_put(&dss.pdev->dev);
+	r = pm_runtime_put_sync(&dss.pdev->dev);
 	WARN_ON(r < 0);
 }
 
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index b4c270edb915..c39f9c3a92cf 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -176,7 +176,7 @@ static void hdmi_runtime_put(void)
 
 	DSSDBG("hdmi_runtime_put\n");
 
-	r = pm_runtime_put(&hdmi.pdev->dev);
+	r = pm_runtime_put_sync(&hdmi.pdev->dev);
 	WARN_ON(r < 0);
 }
 
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index 814bb9500dca..55f398014f33 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -140,7 +140,7 @@ static void rfbi_runtime_put(void)
 
 	DSSDBG("rfbi_runtime_put\n");
 
-	r = pm_runtime_put(&rfbi.pdev->dev);
+	r = pm_runtime_put_sync(&rfbi.pdev->dev);
 	WARN_ON(r < 0);
 }
 
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index b3e9f9091581..5c3d0f901510 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -401,7 +401,7 @@ static void venc_runtime_put(void)
 
 	DSSDBG("venc_runtime_put\n");
 
-	r = pm_runtime_put(&venc.pdev->dev);
+	r = pm_runtime_put_sync(&venc.pdev->dev);
 	WARN_ON(r < 0);
 }