Re: [PATCH 3/7] video: exynos_mipi_dsim: Use the generic PHY driver

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On Fri, OCT 25, 2013 06:57, Sylwester Nawrocki wrote:
> On 10/24/2013 05:57 PM, Kishon Vijay Abraham I wrote:
>> On Thursday 24 October 2013 09:12 PM, Sachin Kamat wrote:
>>> On 24 October 2013 20:00, Olof Johansson<olof@xxxxxxxxx>  wrote:
>>>> On Wed, Oct 16, 2013 at 9:28 AM, Kishon Vijay Abraham I<kishon@xxxxxx>  wrote:
>>>>> diff --git a/drivers/video/exynos/exynos_mipi_dsi.c b/drivers/video/exynos/exynos_mipi_dsi.c
>>>>> index 32e5406..00b3a52 100644
>>>>> --- a/drivers/video/exynos/exynos_mipi_dsi.c
>>>>> +++ b/drivers/video/exynos/exynos_mipi_dsi.c
>>>>> @@ -156,8 +157,7 @@ static int exynos_mipi_dsi_blank_mode(struct mipi_dsim_device *dsim, int power)
>>>>>                  exynos_mipi_regulator_enable(dsim);
>>>>>
>>>>>                  /* enable MIPI-DSI PHY. */
>>>>> -               if (dsim->pd->phy_enable)
>>>>> -                       dsim->pd->phy_enable(pdev, true);
>>>>> +               phy_power_on(dsim->phy);
>>>>>
>>>>>                  clk_enable(dsim->clock);
>>>>>
>>>>
>>>> This introduces the below with exynos_defconfig:
>>>>
>>>> ../../drivers/video/exynos/exynos_mipi_dsi.c: In function
>>>> 'exynos_mipi_dsi_blank_mode':
>>>> ../../drivers/video/exynos/exynos_mipi_dsi.c:144:26: warning: unused
>>>> variable 'pdev' [-Wunused-variable]
>>>>    struct platform_device *pdev = to_platform_device(dsim->dev);
>
> Sorry about missing that, I only noticed this warning recently and didn't
> get around to submit a patch.
>
>>> I have already submitted a patch to fix this [1]
>
> Thanks a lot guys for fixing this.
>
>>> [1] http://marc.info/?l=linux-fbdev&m=138233359617936&w=2
>>
>> Sorry, missed that :-(
>
> This MIPI DSIM driver is affectively a dead code in the mainline now, once
> Exynos become a dt-only platform. I guess it can be deleted for 3.14, once
> S5P gets converted to the device tree. The new driver using CDF is basically
> a complete rewrite. Or device tree support should be added to that driver,
> but I believe it doesn't make sense without CDF.
>

MIPI DSIM driver is not a dead code. There is a steady trickle of patches.
It's kind of late, but, I will update it as DT based drivers as soon as possible.
And Why do you think that DT support of existing MIPI DSIM is something less
than great?


> -- 
> Regards,
> Sylwester
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