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video: exynos_dp: Reset and initialize DP before requesting irq

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If DP is not reset properly before kernel bootup(in bootloader code),
there can be few pending interrupts, and sometimes they invoke
DP irq handler as soon as the irq handler is registered in DP probe.
So, we make the DP driver more robust by resetting and
initializing DP at the earliest and then registering the irq handler.

Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
This commit is contained in:
Ajay Kumar 2012-11-09 13:59:09 +09:00 committed by Jingoo Han
parent c30ffb904c
commit 22ce19cb43
1 changed files with 7 additions and 7 deletions
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14
drivers/video/exynos/exynos_dp_core.c
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@ -1094,13 +1094,6 @@ static int __devinit exynos_dp_probe(struct platform_device *pdev)
INIT_WORK(&dp->hotplug_work, exynos_dp_hotplug); INIT_WORK(&dp->hotplug_work, exynos_dp_hotplug);
ret = devm_request_irq(&pdev->dev, dp->irq, exynos_dp_irq_handler, 0,
"exynos-dp", dp);
if (ret) {
dev_err(&pdev->dev, "failed to request irq\n");
return ret;
}
dp->video_info = pdata->video_info; dp->video_info = pdata->video_info;
if (pdev->dev.of_node) { if (pdev->dev.of_node) {
@ -1113,6 +1106,13 @@ static int __devinit exynos_dp_probe(struct platform_device *pdev)
exynos_dp_init_dp(dp); exynos_dp_init_dp(dp);
ret = devm_request_irq(&pdev->dev, dp->irq, exynos_dp_irq_handler, 0,
"exynos-dp", dp);
if (ret) {
dev_err(&pdev->dev, "failed to request irq\n");
return ret;
}
platform_set_drvdata(pdev, dp); platform_set_drvdata(pdev, dp);
return 0; return 0;