MLK-16977-2 media: v4l_cap: don't support suspend when camera is running

Don't support suspend/resume by checking if camera is running.

Signed-off-by: Robby Cai <robby.cai@nxp.com>

diff --git a/drivers/media/platform/imx8/mxc-mipi-csi2_yav.c b/drivers/media/platform/imx8/mxc-mipi-csi2_yav.c
index ac9a8c4..247b880 100644 (file)
--- a/drivers/media/platform/imx8/mxc-mipi-csi2_yav.c
+++ b/drivers/media/platform/imx8/mxc-mipi-csi2_yav.c
@@ -671,13 +671,14 @@ static int mipi_csi2_runtime_pm_suspend(struct device *dev)
 static int mipi_csi2_pm_suspend(struct device *dev)
 {
        struct mxc_mipi_csi2_dev *csi2dev = dev_get_drvdata(dev);
-       struct v4l2_subdev *sd = &csi2dev->sd;
 
        if (csi2dev->flags & MXC_MIPI_CSI2_PM_SUSPENDED)
                return 0;
 
-       if (csi2dev->running)
-               mipi_csi2_s_stream(sd, false);
+       if (csi2dev->running) {
+               dev_warn(dev, "running, prevent entering suspend.\n");
+               return -EAGAIN;
+       }
        mipi_csi2_clk_disable(csi2dev);
        csi2dev->flags &= ~MXC_MIPI_CSI2_PM_POWERED;
        csi2dev->flags |= MXC_MIPI_CSI2_PM_SUSPENDED;
@@ -688,7 +689,6 @@ static int mipi_csi2_pm_suspend(struct device *dev)
 static int mipi_csi2_pm_resume(struct device *dev)
 {
        struct mxc_mipi_csi2_dev *csi2dev = dev_get_drvdata(dev);
-       struct v4l2_subdev *sd = &csi2dev->sd;
        int ret;
 
        if (csi2dev->flags & MXC_MIPI_CSI2_PM_POWERED)
@@ -700,8 +700,6 @@ static int mipi_csi2_pm_resume(struct device *dev)
                return -EAGAIN;
        }
 
-       if (csi2dev->running)
-               mipi_csi2_s_stream(sd, true);
        csi2dev->flags |= MXC_MIPI_CSI2_PM_POWERED;
        csi2dev->flags &= ~MXC_MIPI_CSI2_PM_SUSPENDED;