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Message-id: <542B95C1.9070704@samsung.com>
Date: Wed, 01 Oct 2014 14:48:49 +0900
From: Inki Dae <inki.dae@...sung.com>
To: Andrzej Hajda <a.hajda@...sung.com>
Cc: Joonyoung Shim <jy0922.shim@...sung.com>,
Seung-Woo Kim <sw0312.kim@...sung.com>,
Kyungmin Park <kyungmin.park@...sung.com>,
David Airlie <airlied@...ux.ie>,
Kukjin Kim <kgene.kim@...sung.com>,
"open list:DRM DRIVERS FOR E..." <dri-devel@...ts.freedesktop.org>,
"moderated list:ARM/S5P EXYNOS AR..."
<linux-samsung-soc@...r.kernel.org>,
open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] drm/exynos: remove ifdeferry from initialization code
On 2014년 09월 30일 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?
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@...sung.com>
>> ---
>> 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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