Re: [PATCH V5 1/2] video: exynos_dp: Add device tree support to DP driver

On Tuesday, October 16, 2012 6:14 AM Sylwester Nawrocki wrote

On 10/15/2012 10:14 AM, Jingoo Han wrote:

quoted

On Saturday, October 13, 2012 6:44 AM Sylwester Nawrocki wrote

quoted

On 10/12/2012 10:47 PM, Ajay Kumar wrote:

quoted

This patch enables device tree based discovery support for DP driver.
The driver is modified to handle platform data in both the cases:
with DT and non-DT.

Signed-off-by: Ajay Kumar<redacted>
Acked-by: Jingoo Han<redacted>
---
   drivers/video/exynos/exynos_dp_core.c |  161 ++++++++++++++++++++++++++++++---
   drivers/video/exynos/exynos_dp_core.h |    2 +
   2 files changed, 149 insertions(+), 14 deletions(-)

...

quoted

quoted

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@@ -953,8 +1062,13 @@ static int __devexit exynos_dp_remove(struct platform_device *pdev)
   	struct exynos_dp_platdata *pdata = pdev->dev.platform_data;
   	struct exynos_dp_device *dp = platform_get_drvdata(pdev);

This doesn't belong to your patch, but the above 2 lines could be written as:

   	struct exynos_dp_device *dp = dev_get_drvdata(&pdev->dev);

Same in functions exynos_dp_suspend() and exynos_dp_resume().

No, above 2 lines cannot be reduced to 1 line, as you mentioned.
This is because it makes build error.

Sorry, my bad. It looks fine in case of exynos_dp_remove().

But at exynos_dp_suspend/resume() there is something like:


static int exynos_dp_suspend(struct device *dev)
{
	struct platform_device *pdev = to_platform_device(dev);
	struct exynos_dp_platdata *pdata = pdev->dev.platform_data;
	struct exynos_dp_device *dp = platform_get_drvdata(pdev);


You need only pdata and dp there. I think that simpler form would
do as well:

	struct exynos_dp_device *dp = dev_get_drvdata(dev);
	struct exynos_dp_platdata *pdata = dev->platform_data;

OK, I see.
I will accept your suggestion, because it is helpful to reduce
lines. Then, I will send v8 patch, soon.

Sorry, this is just a nitpicking.

BTW, shouldn't CONFIG_EXYNOS_VIDEO depend on ARCH_EXYNOS ?


--
Regards,
Sylwester
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