Using bulk clk functions simplifies the driver's code. Use devm_clk_bulk functions instead of iterating over an array of clks.
Signed-off-by: Maciej Purski m.purski@samsung.com --- drivers/media/platform/s5p-jpeg/jpeg-core.c | 45 ++++++++++++----------------- drivers/media/platform/s5p-jpeg/jpeg-core.h | 2 +- 2 files changed, 20 insertions(+), 27 deletions(-)
diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c b/drivers/media/platform/s5p-jpeg/jpeg-core.c index 79b63da..681a515 100644 --- a/drivers/media/platform/s5p-jpeg/jpeg-core.c +++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c @@ -2903,7 +2903,7 @@ static int s5p_jpeg_probe(struct platform_device *pdev) { struct s5p_jpeg *jpeg; struct resource *res; - int i, ret; + int ret;
/* JPEG IP abstraction struct */ jpeg = devm_kzalloc(&pdev->dev, sizeof(struct s5p_jpeg), GFP_KERNEL); @@ -2938,15 +2938,16 @@ static int s5p_jpeg_probe(struct platform_device *pdev) }
/* clocks */ - for (i = 0; i < jpeg->variant->num_clocks; i++) { - jpeg->clocks[i] = devm_clk_get(&pdev->dev, - jpeg->variant->clk_names[i]); - if (IS_ERR(jpeg->clocks[i])) { - dev_err(&pdev->dev, "failed to get clock: %s\n", - jpeg->variant->clk_names[i]); - return PTR_ERR(jpeg->clocks[i]); - } - } + jpeg->clocks = devm_clk_bulk_alloc(&pdev->dev, + jpeg->variant->num_clocks, + jpeg->variant->clk_names); + if (IS_ERR(jpeg->clocks)) + return PTR_ERR(jpeg->clocks); + + ret = devm_clk_bulk_get(&pdev->dev, jpeg->variant->num_clocks, + jpeg->clocks); + if (ret < 0) + return ret;
/* v4l2 device */ ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev); @@ -3047,7 +3048,6 @@ static int s5p_jpeg_probe(struct platform_device *pdev) static int s5p_jpeg_remove(struct platform_device *pdev) { struct s5p_jpeg *jpeg = platform_get_drvdata(pdev); - int i;
pm_runtime_disable(jpeg->dev);
@@ -3058,8 +3058,8 @@ static int s5p_jpeg_remove(struct platform_device *pdev) v4l2_device_unregister(&jpeg->v4l2_dev);
if (!pm_runtime_status_suspended(&pdev->dev)) { - for (i = jpeg->variant->num_clocks - 1; i >= 0; i--) - clk_disable_unprepare(jpeg->clocks[i]); + clk_bulk_disable_unprepare(jpeg->variant->num_clocks, + jpeg->clocks); }
return 0; @@ -3069,10 +3069,8 @@ static int s5p_jpeg_remove(struct platform_device *pdev) static int s5p_jpeg_runtime_suspend(struct device *dev) { struct s5p_jpeg *jpeg = dev_get_drvdata(dev); - int i;
- for (i = jpeg->variant->num_clocks - 1; i >= 0; i--) - clk_disable_unprepare(jpeg->clocks[i]); + clk_bulk_disable_unprepare(jpeg->variant->num_clocks, jpeg->clocks);
return 0; } @@ -3081,16 +3079,11 @@ static int s5p_jpeg_runtime_resume(struct device *dev) { struct s5p_jpeg *jpeg = dev_get_drvdata(dev); unsigned long flags; - int i, ret; - - for (i = 0; i < jpeg->variant->num_clocks; i++) { - ret = clk_prepare_enable(jpeg->clocks[i]); - if (ret) { - while (--i >= 0) - clk_disable_unprepare(jpeg->clocks[i]); - return ret; - } - } + int ret; + + ret = clk_bulk_prepare_enable(jpeg->variant->num_clocks, jpeg->clocks); + if (ret) + return ret;
spin_lock_irqsave(&jpeg->slock, flags);
diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.h b/drivers/media/platform/s5p-jpeg/jpeg-core.h index a46465e..dc6ed98 100644 --- a/drivers/media/platform/s5p-jpeg/jpeg-core.h +++ b/drivers/media/platform/s5p-jpeg/jpeg-core.h @@ -133,7 +133,7 @@ struct s5p_jpeg { void __iomem *regs; unsigned int irq; enum exynos4_jpeg_result irq_ret; - struct clk *clocks[JPEG_MAX_CLOCKS]; + struct clk_bulk_data *clocks; struct device *dev; struct s5p_jpeg_variant *variant; u32 irq_status;