Hi,
On 29 August 2016 at 15:49, Daniel Vetter wrote:
> It's deprecated and only should be used by drivers which still use
> drm_platform_init, not by anyone else.
>
> And indeed it's entirely unused and can be nuked.
>
> This required a bit more fudging, but I guess kirin_dc_ops really
> wants to operate on the platform_device, not something else. Also
> bonus points for implementing abstraction, and then storing the vfunc
> in a global variable.
>
> v2: Don't break the build s badly :(
> Note that the cleanup function is a bit confused: ade_data was never
> set as drvdata, and calling drm_crtc_cleanup directly is a bug - this
> is called indirectly through drm_mode_config_cleanup, which calls into
> crtc->destroy, which already has the call to drm_crtc_cleanup. Which
> means we can just nuke it.
>
> Note this is the 2nd attempt after the first one failed and had to be
> reverted again in
>
> commit 9cd2e854d61ccfa51686f3ed7b0c917708fc641f
> Author: Daniel Vetter
> Date: Wed Aug 17 13:59:40 2016 +0200
>
> Revert "drm/hisilicon: Don't set drm_device->platformdev"
>
> Cc: Xinliang Liu
> Cc: Xinwei Kong
> Cc: Archit Taneja
> Cc: Sean Paul
> Signed-off-by: Daniel Vetter
> ---
> drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 11 +++
> drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c | 8 +++-
> drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h | 4 ++--
> 3 files changed, 8 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
> b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
> index 7e7a4d43d6b6..26022122bcd1 100644
> --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
> +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
> @@ -974,9 +974,9 @@ static int ade_dts_parse(struct platform_device *pdev,
> struct ade_hw_ctx *ctx)
> return 0;
> }
>
> -static int ade_drm_init(struct drm_device *dev)
> +static int ade_drm_init(struct platform_device *pdev)
> {
> - struct platform_device *pdev = dev->platformdev;
> + struct drm_device *dev = platform_get_drvdata(pdev);
if we can get the platformdev here, how about just get pdev here and
don't change the parameter of ade_drm_init :
- struct platform_device *pdev = dev->platformdev;
+ struct platform_device *pdev = o_platform_device(dev->dev);
Best,
-xinliang
> struct ade_data *ade;
> struct ade_hw_ctx *ctx;
> struct ade_crtc *acrtc;
> @@ -1035,13 +1035,8 @@ static int ade_drm_init(struct drm_device *dev)
> return 0;
> }
>
> -static void ade_drm_cleanup(struct drm_device *dev)
> +static void ade_drm_cleanup(struct platform_device *pdev)
> {
> - struct platform_device *pdev = dev->platformdev;
> - struct ade_data *ade = platform_get_drvdata(pdev);
> - struct drm_crtc *crtc = &ade->acrtc.base;
> -
> - drm_crtc_cleanup(crtc);
> }
>
> const struct kirin_dc_ops ade_dc_ops = {
> diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
> b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
> index 1fc2f502d20d..b9b8c25da5e3 100644
> --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
> +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
> @@ -41,7 +41,7 @@ static int kirin_drm_kms_cleanup(struct drm_device *dev)
> #endif
> drm_kms_helper_poll_fini(dev);
> drm_vblank_cleanup(dev);
> - dc_ops->cleanup(dev);
> + dc_ops->cleanup(to_platform_device(dev->dev));
> drm_mode_config_cleanup(dev);
> devm_kfree(dev->dev, priv);
> dev->dev_private = NULL;
> @@ -103,7 +103,7 @@ static int kirin_drm_kms_init(struct drm_device *dev)
> kirin_drm_mode_config_init(dev);
>
> /* display controller init */
> - ret = dc_ops->init(dev);
> + ret = dc_ops->init(to_platform_device(dev->dev));
> if (ret)
> goto err_mode_config_cleanup;
>
> @@ -137,7 +137,7 @@ static int kirin_drm_kms_init(struct drm_device *dev)
> err_unbind_all:
> component_unbind_all(dev->dev, dev);
> err_dc_cleanup:
> - dc_ops->cleanup(dev);
> + dc_ops->cleanup(to_platform_device(dev->dev));
> err_mode_config_cleanup:
> drm_mode_config_cleanup(dev);
> devm_kfree(dev->dev, priv);
> @@ -210,8 +210,6 @@ static int kirin_drm_bind(struct device *dev)
> if (!drm_dev)
> return -ENOMEM;
>
> - drm_dev->platformdev = to_platform_device(dev);
> -
> ret = kirin_drm_kms_init(drm_dev);
> if (ret)
> goto err_drm_dev_unref;
> diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h
> b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h
> index 1a07caf8e7f4..a0bb217c4c64 100644
> --- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h
> +++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.h
> @@ -15,8 +15,8 @@
>
> /* display controller init/cleanup ops */
> struct kirin_dc_ops {
> - int (*init)(struct drm_device *dev);
> - void (*cleanup)(struct drm_devic
