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Message-ID: <20151209142554.40fe61d3@bbrezillon>
Date: Wed, 9 Dec 2015 14:25:54 +0100
From: Boris Brezillon <boris.brezillon@...e-electrons.com>
To: Nicolas Iooss <nicolas.iooss_linux@....org>
Cc: David Airlie <airlied@...ux.ie>,
Jianwei Wang <jianwei.wang.chn@...il.com>,
Alison Wang <alison.wang@...escale.com>,
Mark Yao <mark.yao@...k-chips.com>,
Thierry Reding <thierry.reding@...il.com>,
Terje Bergström <tbergstrom@...dia.com>,
Stephen Warren <swarren@...dotorg.org>,
dri-devel@...ts.freedesktop.org, linux-tegra@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] drm: use dev_name as default unique name in
drm_dev_alloc()
On Tue, 8 Dec 2015 23:12:12 +0100
Nicolas Iooss <nicolas.iooss_linux@....org> wrote:
> The following code pattern exists in some DRM drivers:
>
> ddev = drm_dev_alloc(&driver, parent_dev);
> drm_dev_set_unique(ddev, dev_name(parent_dev));
>
> (Sometimes dev_name(ddev->dev) is used, which is the same.)
>
> As suggested in
> http://lists.freedesktop.org/archives/dri-devel/2015-December/096441.html,
> the unique name of a new DRM device can be set as dev_name(parent_dev)
> when parent_dev is not NULL (vgem is a special case).
>
> Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@....org>
[for atmel-hlcdc]
Acked-by: Boris Brezillon <boris.brezillon@...e-electrons.com>
> ---
> drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 4 ----
> drivers/gpu/drm/drm_drv.c | 9 +++++++++
> drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c | 1 -
> drivers/gpu/drm/nouveau/nouveau_drm.c | 4 ----
> drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 4 ----
> drivers/gpu/drm/tegra/drm.c | 1 -
> drivers/gpu/drm/vc4/vc4_drv.c | 2 --
> 7 files changed, 9 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
> index 244df0a440b7..fba4f72e7ae1 100644
> --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
> +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
> @@ -733,10 +733,6 @@ static int atmel_hlcdc_dc_drm_probe(struct platform_device *pdev)
> if (!ddev)
> return -ENOMEM;
>
> - ret = drm_dev_set_unique(ddev, dev_name(ddev->dev));
> - if (ret)
> - goto err_unref;
> -
> ret = atmel_hlcdc_dc_load(ddev);
> if (ret)
> goto err_unref;
> diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> index 20eaa0aae205..df749a6156e0 100644
> --- a/drivers/gpu/drm/drm_drv.c
> +++ b/drivers/gpu/drm/drm_drv.c
> @@ -633,8 +633,17 @@ struct drm_device *drm_dev_alloc(struct drm_driver *driver,
> }
> }
>
> + if (parent) {
> + ret = drm_dev_set_unique(dev, dev_name(parent));
> + if (ret)
> + goto err_setunique;
> + }
> +
> return dev;
>
> +err_setunique:
> + if (drm_core_check_feature(dev, DRIVER_GEM))
> + drm_gem_destroy(dev);
> err_ctxbitmap:
> drm_legacy_ctxbitmap_cleanup(dev);
> drm_ht_remove(&dev->map_hash);
> diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
> index 1930234ba5f1..fca97d3fc846 100644
> --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
> +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c
> @@ -363,7 +363,6 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev)
> fsl_dev->np = dev->of_node;
> drm->dev_private = fsl_dev;
> dev_set_drvdata(dev, fsl_dev);
> - drm_dev_set_unique(drm, dev_name(dev));
>
> ret = drm_dev_register(drm, 0);
> if (ret < 0)
> diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
> index 2d23f95f17ce..b3a563c44bcd 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_drm.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
> @@ -1046,10 +1046,6 @@ nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
> goto err_free;
> }
>
> - err = drm_dev_set_unique(drm, dev_name(&pdev->dev));
> - if (err < 0)
> - goto err_free;
> -
> drm->platformdev = pdev;
> platform_set_drvdata(pdev, drm);
>
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
> index 215d6c44af55..afbb7407c44f 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
> @@ -450,10 +450,6 @@ static int rockchip_drm_bind(struct device *dev)
> if (!drm)
> return -ENOMEM;
>
> - ret = drm_dev_set_unique(drm, dev_name(dev));
> - if (ret)
> - goto err_free;
> -
> ret = drm_dev_register(drm, 0);
> if (ret)
> goto err_free;
> diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c
> index 159ef515cab1..12e2d3ccbc9d 100644
> --- a/drivers/gpu/drm/tegra/drm.c
> +++ b/drivers/gpu/drm/tegra/drm.c
> @@ -991,7 +991,6 @@ static int host1x_drm_probe(struct host1x_device *dev)
> if (!drm)
> return -ENOMEM;
>
> - drm_dev_set_unique(drm, dev_name(&dev->dev));
> dev_set_drvdata(&dev->dev, drm);
>
> err = drm_dev_register(drm, 0);
> diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
> index d5db9e0f3b73..647772305e8f 100644
> --- a/drivers/gpu/drm/vc4/vc4_drv.c
> +++ b/drivers/gpu/drm/vc4/vc4_drv.c
> @@ -168,8 +168,6 @@ static int vc4_drm_bind(struct device *dev)
> vc4->dev = drm;
> drm->dev_private = vc4;
>
> - drm_dev_set_unique(drm, dev_name(dev));
> -
> drm_mode_config_init(drm);
> if (ret)
> goto unref;
--
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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