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LF-300-1 media: mipi csi: make the csi clock usecount to 0 when it's not used 

Balance the clocks enable/disable to make sure clock use count is 0 when the
module is not used.
This applies for imx8mq.

Signed-off-by: Robby Cai <robby.cai@nxp.com>
Reviewed-by: Guoniu.zhou <guoniu.zhou@nxp.com>
(cherry picked from commit f7b9503f39836e6e84bd1302f3a9eeee9f87b060)
5.4-rM2-2.2.x-imx-squashed
Robby Cai 2019-12-05 17:50:31 +08:00
parent 7b246b74e8
commit 94716420dc
1 changed files with 1 additions and 7 deletions
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8
drivers/media/platform/imx8/mxc-mipi-csi2_yav.c
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@ -623,6 +623,7 @@ static int mipi_csi2_probe(struct platform_device *pdev)
csi2dev->running = 0;
csi2dev->flags = MXC_MIPI_CSI2_PM_POWERED;
pm_runtime_enable(&pdev->dev);
mipi_csi2_clk_disable(csi2dev);
return 0;
@ -678,7 +679,6 @@ static int __maybe_unused mipi_csi2_pm_suspend(struct device *dev)
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;
@ -693,12 +693,6 @@ static int __maybe_unused mipi_csi2_pm_resume(struct device *dev)
if (csi2dev->flags & MXC_MIPI_CSI2_PM_POWERED)
return 0;
ret = mipi_csi2_clk_enable(csi2dev);
if (ret < 0) {
dev_info(dev, "%s:%d fail\n", __func__, __LINE__);
return -EAGAIN;
}
csi2dev->flags |= MXC_MIPI_CSI2_PM_POWERED;
csi2dev->flags &= ~MXC_MIPI_CSI2_PM_SUSPENDED;