[PATCH] media: imx-jpeg: Add pm-sleep support for imx-jpeg

[Ming Qian]

Wait finishing jpeg job before system sleep,
otherwise the encoding/decoding can't be resumed after suspend.

Signed-off-by: Ming Qian <ming.qian at nxp.com>
---
 .../media/platform/nxp/imx-jpeg/mxc-jpeg.c    | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
index ccc26372e178..3df51d866011 100644
--- a/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
+++ b/drivers/media/platform/nxp/imx-jpeg/mxc-jpeg.c
@@ -2356,9 +2356,33 @@ static int mxc_jpeg_runtime_suspend(struct device *dev)
 }
 #endif
 
+#ifdef CONFIG_PM_SLEEP
+static int mxc_jpeg_suspend(struct device *dev)
+{
+	struct mxc_jpeg_dev *jpeg = dev_get_drvdata(dev);
+
+	v4l2_m2m_suspend(jpeg->m2m_dev);
+	return pm_runtime_force_suspend(dev);
+}
+
+static int mxc_jpeg_resume(struct device *dev)
+{
+	struct mxc_jpeg_dev *jpeg = dev_get_drvdata(dev);
+	int ret;
+
+	ret = pm_runtime_force_resume(dev);
+	if (ret < 0)
+		return ret;
+
+	v4l2_m2m_resume(jpeg->m2m_dev);
+	return ret;
+}
+#endif
+
 static const struct dev_pm_ops	mxc_jpeg_pm_ops = {
 	SET_RUNTIME_PM_OPS(mxc_jpeg_runtime_suspend,
 			   mxc_jpeg_runtime_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(mxc_jpeg_suspend, mxc_jpeg_resume)
 };
 
 static int mxc_jpeg_remove(struct platform_device *pdev)
-- 
2.33.0