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-rw-r--r--drivers/media/platform/exynos-gsc/gsc-core.c49
1 files changed, 14 insertions, 35 deletions
diff --git a/drivers/media/platform/exynos-gsc/gsc-core.c b/drivers/media/platform/exynos-gsc/gsc-core.c
index a6c47deba3b7..183c6e4e915f 100644
--- a/drivers/media/platform/exynos-gsc/gsc-core.c
+++ b/drivers/media/platform/exynos-gsc/gsc-core.c
@@ -1001,36 +1001,6 @@ static void *gsc_get_drv_data(struct platform_device *pdev)
return driver_data;
}
-static void gsc_clk_put(struct gsc_dev *gsc)
-{
- if (!IS_ERR(gsc->clock))
- clk_unprepare(gsc->clock);
-}
-
-static int gsc_clk_get(struct gsc_dev *gsc)
-{
- int ret;
-
- dev_dbg(&gsc->pdev->dev, "gsc_clk_get Called\n");
-
- gsc->clock = devm_clk_get(&gsc->pdev->dev, GSC_CLOCK_GATE_NAME);
- if (IS_ERR(gsc->clock)) {
- dev_err(&gsc->pdev->dev, "failed to get clock~~~: %s\n",
- GSC_CLOCK_GATE_NAME);
- return PTR_ERR(gsc->clock);
- }
-
- ret = clk_prepare(gsc->clock);
- if (ret < 0) {
- dev_err(&gsc->pdev->dev, "clock prepare failed for clock: %s\n",
- GSC_CLOCK_GATE_NAME);
- gsc->clock = ERR_PTR(-EINVAL);
- return ret;
- }
-
- return 0;
-}
-
static int gsc_m2m_suspend(struct gsc_dev *gsc)
{
unsigned long flags;
@@ -1098,7 +1068,6 @@ static int gsc_probe(struct platform_device *pdev)
init_waitqueue_head(&gsc->irq_queue);
spin_lock_init(&gsc->slock);
mutex_init(&gsc->lock);
- gsc->clock = ERR_PTR(-EINVAL);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
gsc->regs = devm_ioremap_resource(dev, res);
@@ -1111,9 +1080,19 @@ static int gsc_probe(struct platform_device *pdev)
return -ENXIO;
}
- ret = gsc_clk_get(gsc);
- if (ret)
+ gsc->clock = devm_clk_get(dev, GSC_CLOCK_GATE_NAME);
+ if (IS_ERR(gsc->clock)) {
+ dev_err(dev, "failed to get clock~~~: %s\n",
+ GSC_CLOCK_GATE_NAME);
+ return PTR_ERR(gsc->clock);
+ }
+
+ ret = clk_prepare(gsc->clock);
+ if (ret) {
+ dev_err(&gsc->pdev->dev, "clock prepare failed for clock: %s\n",
+ GSC_CLOCK_GATE_NAME);
return ret;
+ }
ret = devm_request_irq(dev, res->start, gsc_irq_handler,
0, pdev->name, gsc);
@@ -1148,7 +1127,7 @@ err_m2m:
err_v4l2:
v4l2_device_unregister(&gsc->v4l2_dev);
err_clk:
- gsc_clk_put(gsc);
+ clk_unprepare(gsc->clock);
return ret;
}
@@ -1161,7 +1140,7 @@ static int gsc_remove(struct platform_device *pdev)
vb2_dma_contig_clear_max_seg_size(&pdev->dev);
pm_runtime_disable(&pdev->dev);
- gsc_clk_put(gsc);
+ clk_unprepare(gsc->clock);
dev_dbg(&pdev->dev, "%s driver unloaded\n", pdev->name);
return 0;