Driver should ensure a device can be also used normally when runtime
PM is disabled. So enable the FIMC clock in probe() in such situation.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@xxxxxxxxxxx>
---
drivers/media/platform/exynos4-is/fimc-core.c | 29 +++++++++++++-----------
1 files changed, 16 insertions(+), 13 deletions(-)
diff --git a/drivers/media/platform/exynos4-is/fimc-core.c b/drivers/media/platform/exynos4-is/fimc-core.c
index f791569..a7dfd07 100644
--- a/drivers/media/platform/exynos4-is/fimc-core.c
+++ b/drivers/media/platform/exynos4-is/fimc-core.c
@@ -998,36 +998,39 @@ static int fimc_probe(struct platform_device *pdev)
ret = devm_request_irq(dev, res->start, fimc_irq_handler,
0, dev_name(dev), fimc);
- if (ret) {
+ if (ret < 0) {
dev_err(dev, "failed to install irq (%d)\n", ret);
- goto err_clk;
+ goto err_sclk;
}
ret = fimc_initialize_capture_subdev(fimc);
- if (ret)
- goto err_clk;
+ if (ret < 0)
+ goto err_sclk;
platform_set_drvdata(pdev, fimc);
pm_runtime_enable(dev);
- ret = pm_runtime_get_sync(dev);
- if (ret < 0)
- goto err_sd;
+
+ if (!pm_runtime_enabled(dev)) {
+ ret = clk_enable(fimc->clock[CLK_GATE]);
+ if (ret < 0)
+ goto err_sd;
+ }
+
/* Initialize contiguous memory allocator */
fimc->alloc_ctx = vb2_dma_contig_init_ctx(dev);
if (IS_ERR(fimc->alloc_ctx)) {
ret = PTR_ERR(fimc->alloc_ctx);
- goto err_pm;
+ goto err_gclk;
}
dev_dbg(dev, "FIMC.%d registered successfully\n", fimc->id);
-
- pm_runtime_put(dev);
return 0;
-err_pm:
- pm_runtime_put(dev);
+
+err_gclk:
+ clk_disable(fimc->clock[CLK_GATE]);
err_sd:
fimc_unregister_capture_subdev(fimc);
-err_clk:
+err_sclk:
clk_disable(fimc->clock[CLK_BUS]);
fimc_clk_put(fimc);
return ret;
--
1.7.4.1
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