2017년 07월 05일 00:18에 Daniel Vetter 이(가) 쓴 글:
> From: Thierry Reding <tred...@nvidia.com>
>
> The FB helper core now supports deferred setup, so the driver's custom
> implementation can be removed.
Reviewed-by: Inki Dae <inki....@samsung.com>
Tested-by: Inki Dae <inki....@samsung.com>
Thanks,
Inki Dae
>
> v2: Drop NULL check, drm_fb_helper_hotplug_event handles that already.
>
> Cc: Inki Dae <inki....@samsung.com>
> Cc: Joonyoung Shim <jy0922.s...@samsung.com>
> Cc: Seung-Woo Kim <sw0312....@samsung.com>
> Cc: Kyungmin Park <kyungmin.p...@samsung.com>
> Signed-off-by: Thierry Reding <tred...@nvidia.com> (v1)
> Signed-off-by: Daniel Vetter <daniel.vet...@ffwll.ch>
> ---
> drivers/gpu/drm/exynos/exynos_drm_drv.c | 6 ++++--
> drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 26 +-------------------------
> 2 files changed, 5 insertions(+), 27 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c
> b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> index 35a8dfc93836..cab9e12d7846 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> @@ -395,8 +395,9 @@ static int exynos_drm_bind(struct device *dev)
> /* init kms poll for handling hpd */
> drm_kms_helper_poll_init(drm);
>
> - /* force connectors detection */
> - drm_helper_hpd_irq_event(drm);
> + ret = exynos_drm_fbdev_init(drm);
> + if (ret)
> + goto err_cleanup_poll;
>
> /* register the DRM device */
> ret = drm_dev_register(drm, 0);
> @@ -407,6 +408,7 @@ static int exynos_drm_bind(struct device *dev)
>
> err_cleanup_fbdev:
> exynos_drm_fbdev_fini(drm);
> +err_cleanup_poll:
> drm_kms_helper_poll_fini(drm);
> exynos_drm_device_subdrv_remove(drm);
> err_unbind_all:
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> index 641531243e04..c3a068409b48 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
> @@ -183,24 +183,6 @@ static const struct drm_fb_helper_funcs
> exynos_drm_fb_helper_funcs = {
> .fb_probe = exynos_drm_fbdev_create,
> };
>
> -static bool exynos_drm_fbdev_is_anything_connected(struct drm_device *dev)
> -{
> - struct drm_connector *connector;
> - bool ret = false;
> -
> - mutex_lock(&dev->mode_config.mutex);
> - list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
> - if (connector->status != connector_status_connected)
> - continue;
> -
> - ret = true;
> - break;
> - }
> - mutex_unlock(&dev->mode_config.mutex);
> -
> - return ret;
> -}
> -
> int exynos_drm_fbdev_init(struct drm_device *dev)
> {
> struct exynos_drm_fbdev *fbdev;
> @@ -211,9 +193,6 @@ int exynos_drm_fbdev_init(struct drm_device *dev)
> if (!dev->mode_config.num_crtc || !dev->mode_config.num_connector)
> return 0;
>
> - if (!exynos_drm_fbdev_is_anything_connected(dev))
> - return 0;
> -
> fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL);
> if (!fbdev)
> return -ENOMEM;
> @@ -304,8 +283,5 @@ void exynos_drm_output_poll_changed(struct drm_device
> *dev)
> struct exynos_drm_private *private = dev->dev_private;
> struct drm_fb_helper *fb_helper = private->fb_helper;
>
> - if (fb_helper)
> - drm_fb_helper_hotplug_event(fb_helper);
> - else
> - exynos_drm_fbdev_init(dev);
> + drm_fb_helper_hotplug_event(fb_helper);
> }
>
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