Hi Thierry,
Thank you for the patch, and sorry for the late reply.
On Monday 15 October 2012 20:03:42 Thierry Reding wrote:
> Platform device drivers usually use the driver-private data for their
> own purposes. Having it overwritten by drm_platform_init() is confusing
> and error-prone.
If you want to push drivers that way, you should get rid of the
pci_set_drvdata() call in core DRM as well. This would push device driver data
handling down to all drivers, so I'm not convinced it would actually make
things simpler.
> Signed-off-by: Thierry Reding <thierry.reding@xxxxxxxxxxxxxxxxx>
Tested-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
But I'm not convinced by the patch, as explained above.
> ---
> Note that I don't have any hardware to test the shmobile changes on so
> it would be good to get a Tested-by for that.
>
> drivers/gpu/drm/drm_platform.c | 1 -
> drivers/gpu/drm/shmobile/shmob_drm_drv.c | 12 +++++-------
> 2 files changed, 5 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_platform.c b/drivers/gpu/drm/drm_platform.c
> index aaeb6f8..b8a282e 100644
> --- a/drivers/gpu/drm/drm_platform.c
> +++ b/drivers/gpu/drm/drm_platform.c
> @@ -64,7 +64,6 @@ int drm_get_platform_dev(struct platform_device *platdev,
> }
>
> if (drm_core_check_feature(dev, DRIVER_MODESET)) {
> - dev_set_drvdata(&platdev->dev, dev);
> ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL);
> if (ret)
> goto err_g1;
> diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.c
> b/drivers/gpu/drm/shmobile/shmob_drm_drv.c index c71d493..1c350fc 100644
> --- a/drivers/gpu/drm/shmobile/shmob_drm_drv.c
> +++ b/drivers/gpu/drm/shmobile/shmob_drm_drv.c
> @@ -201,6 +201,8 @@ static int shmob_drm_load(struct drm_device *dev,
> unsigned long flags) goto done;
> }
>
> + platform_set_drvdata(pdev, sdev);
> +
> done:
> if (ret)
> shmob_drm_unload(dev);
> @@ -299,11 +301,9 @@ static struct drm_driver shmob_drm_driver = {
> #if CONFIG_PM_SLEEP
> static int shmob_drm_pm_suspend(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct drm_device *ddev = platform_get_drvdata(pdev);
> - struct shmob_drm_device *sdev = ddev->dev_private;
> + struct shmob_drm_device *sdev = dev_get_drvdata(dev);
>
> - drm_kms_helper_poll_disable(ddev);
> + drm_kms_helper_poll_disable(sdev->ddev);
> shmob_drm_crtc_suspend(&sdev->crtc);
>
> return 0;
> @@ -311,9 +311,7 @@ static int shmob_drm_pm_suspend(struct device *dev)
>
> static int shmob_drm_pm_resume(struct device *dev)
> {
> - struct platform_device *pdev = to_platform_device(dev);
> - struct drm_device *ddev = platform_get_drvdata(pdev);
> - struct shmob_drm_device *sdev = ddev->dev_private;
> + struct shmob_drm_device *sdev = dev_get_drvdata(dev);
>
> mutex_lock(&sdev->ddev->mode_config.mutex);
> shmob_drm_crtc_resume(&sdev->crtc);
--
Regards,
Laurent Pinchart
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