[PATCH 6/6] OMAPDSS: use runtime PM's autosuspend

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Use runtime PM's autosuspend support with delay of 100ms.

This will prevent the driver from turning the DSS modules off and on
multiple times e.g. when loading the module.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
---
 drivers/video/omap2/dss/dispc.c | 5 ++++-
 drivers/video/omap2/dss/dsi.c   | 5 ++++-
 drivers/video/omap2/dss/dss.c   | 5 ++++-
 drivers/video/omap2/dss/dss.h   | 2 ++
 drivers/video/omap2/dss/hdmi4.c | 5 ++++-
 drivers/video/omap2/dss/rfbi.c  | 5 ++++-
 drivers/video/omap2/dss/venc.c  | 5 ++++-
 7 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 58f3626..0643eb0 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -258,7 +258,8 @@ void dispc_runtime_put(void)
 
 	DSSDBG("dispc_runtime_put\n");
 
-	r = pm_runtime_put_sync(&dispc.pdev->dev);
+	pm_runtime_mark_last_busy(&dispc.pdev->dev);
+	r = pm_runtime_put_autosuspend(&dispc.pdev->dev);
 	WARN_ON(r < 0 && r != -ENOSYS);
 }
 EXPORT_SYMBOL(dispc_runtime_put);
@@ -3440,6 +3441,8 @@ static int __init omap_dispchw_probe(struct platform_device *pdev)
 	}
 
 	pm_runtime_enable(&pdev->dev);
+	pm_runtime_set_autosuspend_delay(&pdev->dev, DSS_AUTOSUSPEND_DELAY);
+	pm_runtime_use_autosuspend(&pdev->dev);
 
 	r = dispc_runtime_get();
 	if (r)
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 6b30a58..19e4cad 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -1110,7 +1110,8 @@ void dsi_runtime_put(struct platform_device *dsidev)
 
 	DSSDBG("dsi_runtime_put\n");
 
-	r = pm_runtime_put_sync(&dsi->pdev->dev);
+	pm_runtime_mark_last_busy(&dsi->pdev->dev);
+	r = pm_runtime_put_autosuspend(&dsi->pdev->dev);
 	WARN_ON(r < 0 && r != -ENOSYS);
 }
 
@@ -5416,6 +5417,8 @@ static int omap_dsihw_probe(struct platform_device *dsidev)
 		return r;
 
 	pm_runtime_enable(&dsidev->dev);
+	pm_runtime_set_autosuspend_delay(&dsidev->dev, DSS_AUTOSUSPEND_DELAY);
+	pm_runtime_use_autosuspend(&dsidev->dev);
 
 	r = dsi_runtime_get(dsidev);
 	if (r)
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index fa7bc00..d3b0122 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -689,7 +689,8 @@ static void dss_runtime_put(void)
 
 	DSSDBG("dss_runtime_put\n");
 
-	r = pm_runtime_put_sync(&dss.pdev->dev);
+	pm_runtime_mark_last_busy(&dss.pdev->dev);
+	r = pm_runtime_put_autosuspend(&dss.pdev->dev);
 	WARN_ON(r < 0 && r != -ENOSYS && r != -EBUSY);
 }
 
@@ -821,6 +822,8 @@ static int __init omap_dsshw_probe(struct platform_device *pdev)
 		goto err_setup_clocks;
 
 	pm_runtime_enable(&pdev->dev);
+	pm_runtime_set_autosuspend_delay(&pdev->dev, DSS_AUTOSUSPEND_DELAY);
+	pm_runtime_use_autosuspend(&pdev->dev);
 
 	r = dss_runtime_get();
 	if (r)
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index af83c4d..96505f0 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -73,6 +73,8 @@
 #define FLD_MOD(orig, val, start, end) \
 	(((orig) & ~FLD_MASK(start, end)) | FLD_VAL(val, start, end))
 
+#define DSS_AUTOSUSPEND_DELAY 100	/* in ms */
+
 enum dss_io_pad_mode {
 	DSS_IO_PAD_MODE_RESET,
 	DSS_IO_PAD_MODE_RFBI,
diff --git a/drivers/video/omap2/dss/hdmi4.c b/drivers/video/omap2/dss/hdmi4.c
index f1a45fe..f255641 100644
--- a/drivers/video/omap2/dss/hdmi4.c
+++ b/drivers/video/omap2/dss/hdmi4.c
@@ -77,7 +77,8 @@ static void hdmi_runtime_put(void)
 
 	DSSDBG("hdmi_runtime_put\n");
 
-	r = pm_runtime_put_sync(&hdmi.pdev->dev);
+	pm_runtime_mark_last_busy(&hdmi.pdev->dev);
+	r = pm_runtime_put_autosuspend(&hdmi.pdev->dev);
 	WARN_ON(r < 0 && r != -ENOSYS);
 }
 
@@ -631,6 +632,8 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev)
 	}
 
 	pm_runtime_enable(&pdev->dev);
+	pm_runtime_set_autosuspend_delay(&pdev->dev, DSS_AUTOSUSPEND_DELAY);
+	pm_runtime_use_autosuspend(&pdev->dev);
 
 	hdmi_init_output(pdev);
 
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index 74d3ed1..20dcbfb 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -147,7 +147,8 @@ static void rfbi_runtime_put(void)
 
 	DSSDBG("rfbi_runtime_put\n");
 
-	r = pm_runtime_put_sync(&rfbi.pdev->dev);
+	pm_runtime_mark_last_busy(&rfbi.pdev->dev);
+	r = pm_runtime_put_autosuspend(&rfbi.pdev->dev);
 	WARN_ON(r < 0 && r != -ENOSYS);
 }
 
@@ -981,6 +982,8 @@ static int omap_rfbihw_probe(struct platform_device *pdev)
 	clk_put(clk);
 
 	pm_runtime_enable(&pdev->dev);
+	pm_runtime_set_autosuspend_delay(&pdev->dev, DSS_AUTOSUSPEND_DELAY);
+	pm_runtime_use_autosuspend(&pdev->dev);
 
 	r = rfbi_runtime_get();
 	if (r)
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index e173961..bbd35bb 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -410,7 +410,8 @@ static void venc_runtime_put(void)
 
 	DSSDBG("venc_runtime_put\n");
 
-	r = pm_runtime_put_sync(&venc.pdev->dev);
+	pm_runtime_mark_last_busy(&venc.pdev->dev);
+	r = pm_runtime_put_autosuspend(&venc.pdev->dev);
 	WARN_ON(r < 0 && r != -ENOSYS);
 }
 
@@ -835,6 +836,8 @@ static int omap_venchw_probe(struct platform_device *pdev)
 		return r;
 
 	pm_runtime_enable(&pdev->dev);
+	pm_runtime_set_autosuspend_delay(&pdev->dev, DSS_AUTOSUSPEND_DELAY);
+	pm_runtime_use_autosuspend(&pdev->dev);
 
 	r = venc_runtime_get();
 	if (r)
-- 
1.8.3.2

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