From: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
The driver depended on CONFIG_PM to be functional. Let's remove that
dependency, by enable the runtime PM resourses during ->probe() and
update the device's runtime PM status to reflect this.
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
[mszyprow: rebased onto v4.9-rc4]
Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
---
drivers/media/platform/exynos-gsc/gsc-core.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c
index cb4e8bd..b5a99af 100644
--- a/drivers/media/platform/exynos-gsc/gsc-core.c
+++ b/drivers/media/platform/exynos-gsc/gsc-core.c
@@ -1072,7 +1072,7 @@ static int gsc_probe(struct platform_device *pdev)
return PTR_ERR(gsc->clock);
}
- ret = clk_prepare(gsc->clock);
+ ret = clk_prepare_enable(gsc->clock);
if (ret) {
dev_err(&gsc->pdev->dev, "clock prepare failed for clock: %s\n",
GSC_CLOCK_GATE_NAME);
@@ -1095,24 +1095,23 @@ static int gsc_probe(struct platform_device *pdev)
goto err_v4l2;
platform_set_drvdata(pdev, gsc);
- pm_runtime_enable(dev);
- ret = pm_runtime_get_sync(&pdev->dev);
- if (ret < 0)
- goto err_m2m;
+
+ gsc_hw_set_sw_reset(gsc);
+ gsc_wait_reset(gsc);
vb2_dma_contig_set_max_seg_size(dev, DMA_BIT_MASK(32));
dev_dbg(dev, "gsc-%d registered successfully\n", gsc->id);
- pm_runtime_put(dev);
+ pm_runtime_set_active(dev);
+ pm_runtime_enable(dev);
+
return 0;
-err_m2m:
- gsc_unregister_m2m_device(gsc);
err_v4l2:
v4l2_device_unregister(&gsc->v4l2_dev);
err_clk:
- clk_unprepare(gsc->clock);
+ clk_disable_unprepare(gsc->clock);
return ret;
}
--
1.9.1
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