Re: [PATCH] drm/exynos: remove ifdeferry from initialization code

From: Inki Dae
Date: Wed Oct 01 2014 - 02:11:20 EST

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On 2014ë 10ì 01ì 14:48, Inki Dae wrote:
> On 2014ë 09ì 30ì 20:29, Andrzej Hajda wrote:
>> Hi Inki,
>>
>> Gently ping.
>
> Hi Andrzej,
>
> I merged it to local repository to test. But now exynos drm doesn't work
> correctly since pulling drm-next of Dave regardless of your patch.
>
> Problems are,
> 1. error occurs when we try to test modetest with -v option from second
> times.
> 2. error occurs when we try to test unbind.
>
> Now we are checking these problems. Can you try to also check it?

In addition, we are testing it on trats2 board.

>
> Thanks,
> Inki Dae
>
>>
>> Andrzej
>>
>> On 09/10/2014 01:53 PM, Andrzej Hajda wrote:
>>> The patch replaces separate calls to driver (de)registration by
>>> loops over the array of drivers. As a result it significantly
>>> decreases number of ifdefs. Additionally it moves device registration
>>> related ifdefs to header file.
>>>
>>> Signed-off-by: Andrzej Hajda <a.hajda@xxxxxxxxxxx>
>>> ---
>>> Hi Inki,
>>>
>>> During testing your component match support patch [1] I have prepared patch
>>> removing most ifdefs from exynos_drm_drv.c. It is based on your patch, but
>>> I can rebase it if necessary.
>>>
>>> [1]: http://permalink.gmane.org/gmane.linux.kernel.samsung-soc/37031
>>>
>>> Regards
>>> Andrzej
>>> ---
>>> drivers/gpu/drm/exynos/exynos_drm_drv.c | 170 +++++++-------------------------
>>> drivers/gpu/drm/exynos/exynos_drm_drv.h | 25 +++--
>>> 2 files changed, 48 insertions(+), 147 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
>>> index b2c710a..a660e46 100644
>>> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
>>> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
>>> @@ -553,74 +553,54 @@ static const struct component_master_ops exynos_drm_ops = {
>>> .unbind = exynos_drm_unbind,
>>> };
>>>
>>> -static int exynos_drm_platform_probe(struct platform_device *pdev)
>>> -{
>>> - struct component_match *match;
>>> - int ret;
>>> -
>>> - pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
>>> - exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls);
>>> -
>>> +static struct platform_driver * const exynos_drm_drivers[] = {
>>> #ifdef CONFIG_DRM_EXYNOS_FIMD
>>> - ret = platform_driver_register(&fimd_driver);
>>> - if (ret < 0)
>>> - return ret;
>>> + &fimd_driver,
>>> #endif
>>> -
>>> #ifdef CONFIG_DRM_EXYNOS_DP
>>> - ret = platform_driver_register(&dp_driver);
>>> - if (ret < 0)
>>> - goto err_unregister_fimd_drv;
>>> + &dp_driver,
>>> #endif
>>> -
>>> #ifdef CONFIG_DRM_EXYNOS_DSI
>>> - ret = platform_driver_register(&dsi_driver);
>>> - if (ret < 0)
>>> - goto err_unregister_dp_drv;
>>> + &dsi_driver,
>>> #endif
>>> -
>>> #ifdef CONFIG_DRM_EXYNOS_HDMI
>>> - ret = platform_driver_register(&mixer_driver);
>>> - if (ret < 0)
>>> - goto err_unregister_dsi_drv;
>>> - ret = platform_driver_register(&hdmi_driver);
>>> - if (ret < 0)
>>> - goto err_unregister_mixer_drv;
>>> + &mixer_driver,
>>> + &hdmi_driver,
>>> #endif
>>> -
>>> #ifdef CONFIG_DRM_EXYNOS_G2D
>>> - ret = platform_driver_register(&g2d_driver);
>>> - if (ret < 0)
>>> - goto err_unregister_hdmi_drv;
>>> + &g2d_driver,
>>> #endif
>>> -
>>> #ifdef CONFIG_DRM_EXYNOS_FIMC
>>> - ret = platform_driver_register(&fimc_driver);
>>> - if (ret < 0)
>>> - goto err_unregister_g2d_drv;
>>> + &fimc_driver,
>>> #endif
>>> -
>>> #ifdef CONFIG_DRM_EXYNOS_ROTATOR
>>> - ret = platform_driver_register(&rotator_driver);
>>> - if (ret < 0)
>>> - goto err_unregister_fimc_drv;
>>> + &rotator_driver,
>>> #endif
>>> -
>>> #ifdef CONFIG_DRM_EXYNOS_GSC
>>> - ret = platform_driver_register(&gsc_driver);
>>> - if (ret < 0)
>>> - goto err_unregister_rotator_drv;
>>> + &gsc_driver,
>>> #endif
>>> -
>>> #ifdef CONFIG_DRM_EXYNOS_IPP
>>> - ret = platform_driver_register(&ipp_driver);
>>> - if (ret < 0)
>>> - goto err_unregister_gsc_drv;
>>> + &ipp_driver,
>>> +#endif
>>> +};
>>> +
>>> +static int exynos_drm_platform_probe(struct platform_device *pdev)
>>> +{
>>> + struct component_match *match;
>>> + int ret, i;
>>> +
>>> + pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
>>> + exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls);
>>> +
>>> + for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) {
>>> + ret = platform_driver_register(exynos_drm_drivers[i]);
>>> + if (ret < 0)
>>> + goto err_unregister_drivers;
>>> + }
>>>
>>> ret = exynos_platform_device_ipp_register();
>>> if (ret < 0)
>>> - goto err_unregister_ipp_drv;
>>> -#endif
>>> + goto err_unregister_drivers;
>>>
>>> match = exynos_drm_match_add(&pdev->dev);
>>> if (IS_ERR(match)) {
>>> @@ -632,96 +612,24 @@ static int exynos_drm_platform_probe(struct platform_device *pdev)
>>> match);
>>>
>>> err_unregister_ipp_dev:
>>> -
>>> -#ifdef CONFIG_DRM_EXYNOS_IPP
>>> exynos_platform_device_ipp_unregister();
>>> -err_unregister_ipp_drv:
>>> - platform_driver_unregister(&ipp_driver);
>>> -err_unregister_gsc_drv:
>>> -#endif
>>>
>>> -#ifdef CONFIG_DRM_EXYNOS_GSC
>>> - platform_driver_unregister(&gsc_driver);
>>> -err_unregister_rotator_drv:
>>> -#endif
>>> +err_unregister_drivers:
>>> + while (--i >= 0)
>>> + platform_driver_unregister(exynos_drm_drivers[i]);
>>>
>>> -#ifdef CONFIG_DRM_EXYNOS_ROTATOR
>>> - platform_driver_unregister(&rotator_driver);
>>> -err_unregister_fimc_drv:
>>> -#endif
>>> -
>>> -#ifdef CONFIG_DRM_EXYNOS_FIMC
>>> - platform_driver_unregister(&fimc_driver);
>>> -err_unregister_g2d_drv:
>>> -#endif
>>> -
>>> -#ifdef CONFIG_DRM_EXYNOS_G2D
>>> - platform_driver_unregister(&g2d_driver);
>>> -err_unregister_hdmi_drv:
>>> -#endif
>>> -
>>> -#ifdef CONFIG_DRM_EXYNOS_HDMI
>>> - platform_driver_unregister(&hdmi_driver);
>>> -err_unregister_mixer_drv:
>>> - platform_driver_unregister(&mixer_driver);
>>> -err_unregister_dsi_drv:
>>> -#endif
>>> -
>>> -#ifdef CONFIG_DRM_EXYNOS_DSI
>>> - platform_driver_unregister(&dsi_driver);
>>> -err_unregister_dp_drv:
>>> -#endif
>>> -
>>> -#ifdef CONFIG_DRM_EXYNOS_DP
>>> - platform_driver_unregister(&dp_driver);
>>> -err_unregister_fimd_drv:
>>> -#endif
>>> -
>>> -#ifdef CONFIG_DRM_EXYNOS_FIMD
>>> - platform_driver_unregister(&fimd_driver);
>>> -#endif
>>> return ret;
>>> }
>>>
>>> static int exynos_drm_platform_remove(struct platform_device *pdev)
>>> {
>>> -#ifdef CONFIG_DRM_EXYNOS_IPP
>>> - exynos_platform_device_ipp_unregister();
>>> - platform_driver_unregister(&ipp_driver);
>>> -#endif
>>> -
>>> -#ifdef CONFIG_DRM_EXYNOS_GSC
>>> - platform_driver_unregister(&gsc_driver);
>>> -#endif
>>> -
>>> -#ifdef CONFIG_DRM_EXYNOS_ROTATOR
>>> - platform_driver_unregister(&rotator_driver);
>>> -#endif
>>> -
>>> -#ifdef CONFIG_DRM_EXYNOS_FIMC
>>> - platform_driver_unregister(&fimc_driver);
>>> -#endif
>>> -
>>> -#ifdef CONFIG_DRM_EXYNOS_G2D
>>> - platform_driver_unregister(&g2d_driver);
>>> -#endif
>>> -
>>> -#ifdef CONFIG_DRM_EXYNOS_HDMI
>>> - platform_driver_unregister(&mixer_driver);
>>> - platform_driver_unregister(&hdmi_driver);
>>> -#endif
>>> + int i;
>>>
>>> -#ifdef CONFIG_DRM_EXYNOS_FIMD
>>> - platform_driver_unregister(&fimd_driver);
>>> -#endif
>>> + exynos_platform_device_ipp_unregister();
>>>
>>> -#ifdef CONFIG_DRM_EXYNOS_DSI
>>> - platform_driver_unregister(&dsi_driver);
>>> -#endif
>>> + for (i = ARRAY_SIZE(exynos_drm_drivers) - 1; i >= 0; --i)
>>> + platform_driver_unregister(exynos_drm_drivers[i]);
>>>
>>> -#ifdef CONFIG_DRM_EXYNOS_DP
>>> - platform_driver_unregister(&dp_driver);
>>> -#endif
>>> component_master_del(&pdev->dev, &exynos_drm_ops);
>>> return 0;
>>> }
>>> @@ -745,11 +653,9 @@ static int exynos_drm_init(void)
>>> if (IS_ERR(exynos_drm_pdev))
>>> return PTR_ERR(exynos_drm_pdev);
>>>
>>> -#ifdef CONFIG_DRM_EXYNOS_VIDI
>>> ret = exynos_drm_probe_vidi();
>>> if (ret < 0)
>>> goto err_unregister_pd;
>>> -#endif
>>>
>>> ret = platform_driver_register(&exynos_drm_platform_driver);
>>> if (ret)
>>> @@ -758,11 +664,9 @@ static int exynos_drm_init(void)
>>> return 0;
>>>
>>> err_remove_vidi:
>>> -#ifdef CONFIG_DRM_EXYNOS_VIDI
>>> exynos_drm_remove_vidi();
>>>
>>> err_unregister_pd:
>>> -#endif
>>> platform_device_unregister(exynos_drm_pdev);
>>>
>>> return ret;
>>> @@ -771,9 +675,9 @@ err_unregister_pd:
>>> static void exynos_drm_exit(void)
>>> {
>>> platform_driver_unregister(&exynos_drm_platform_driver);
>>> -#ifdef CONFIG_DRM_EXYNOS_VIDI
>>> +
>>> exynos_drm_remove_vidi();
>>> -#endif
>>> +
>>> platform_device_unregister(exynos_drm_pdev);
>>> }
>>>
>>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
>>> index 69a6fa3..76d5d02 100644
>>> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
>>> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
>>> @@ -324,15 +324,14 @@ int exynos_platform_device_hdmi_register(void);
>>> */
>>> void exynos_platform_device_hdmi_unregister(void);
>>>
>>> -/*
>>> - * this function registers exynos drm ipp platform device.
>>> - */
>>> +#ifdef CONFIG_DRM_EXYNOS_IPP
>>> int exynos_platform_device_ipp_register(void);
>>> -
>>> -/*
>>> - * this function unregisters exynos drm ipp platform device if it exists.
>>> - */
>>> void exynos_platform_device_ipp_unregister(void);
>>> +#else
>>> +static inline int exynos_platform_device_ipp_register(void) { return 0; }
>>> +static inline void exynos_platform_device_ipp_unregister(void) {}
>>> +#endif
>>> +
>>>
>>> #ifdef CONFIG_DRM_EXYNOS_DPI
>>> struct exynos_drm_display * exynos_dpi_probe(struct device *dev);
>>> @@ -343,15 +342,13 @@ exynos_dpi_probe(struct device *dev) { return NULL; }
>>> static inline int exynos_dpi_remove(struct device *dev) { return 0; }
>>> #endif
>>>
>>> -/*
>>> - * this function registers exynos drm vidi platform device/driver.
>>> - */
>>> +#ifdef CONFIG_DRM_EXYNOS_VIDI
>>> int exynos_drm_probe_vidi(void);
>>> -
>>> -/*
>>> - * this function unregister exynos drm vidi platform device/driver.
>>> - */
>>> void exynos_drm_remove_vidi(void);
>>> +#else
>>> +static inline int exynos_drm_probe_vidi(void) { return 0; }
>>> +static inline void exynos_drm_remove_vidi(void) {}
>>> +#endif
>>>
>>> /* This function creates a encoder and a connector, and initializes them. */
>>> int exynos_drm_create_enc_conn(struct drm_device *dev,
>>
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Next message: Ajay kumar: "Re: [PATCH] drm/exynos: remove ifdeferry from initialization code"
Previous message: Alexander Aring: "Re: [PATCH 1/1 net-next] ieee802154: fix __init functions"
In reply to: Inki Dae: "Re: [PATCH] drm/exynos: remove ifdeferry from initialization code"
Next in thread: Andrzej Hajda: "[PATCH] drm/exynos: fix vblank handling during dpms off"
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