Hi,
On Fri, Oct 13, 2017 at 05:59:08PM +0300, Laurent Pinchart wrote:
> When merging the omapdrm and omapdss drivers there will be not omapdrm
> platform device anymore, and thus no associated probe and remove
> functions. To prepare for that, split all the initialization code from
> the probe function to make it usable without a platform device.
> Similarly, split the cleanup code from the remove function.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> ---
Reviewed-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxxxx>
-- Sebastian
> drivers/gpu/drm/omapdrm/omap_drv.c | 83 +++++++++++++++++++++++---------------
> drivers/gpu/drm/omapdrm/omap_drv.h | 2 +
> 2 files changed, 53 insertions(+), 32 deletions(-)
>
> diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
> index 2d15ea1d6c92..cbca70f80d8e 100644
> --- a/drivers/gpu/drm/omapdrm/omap_drv.c
> +++ b/drivers/gpu/drm/omapdrm/omap_drv.c
> @@ -542,24 +542,16 @@ static const struct soc_device_attribute omapdrm_soc_devices[] = {
> { /* sentinel */ }
> };
>
> -static int pdev_probe(struct platform_device *pdev)
> +static int omapdrm_init(struct omap_drm_private *priv, struct device *dev)
> {
> const struct soc_device_attribute *soc;
> - struct omap_drm_private *priv;
> struct drm_device *ddev;
> unsigned int i;
> int ret;
>
> - DBG("%s", pdev->name);
> -
> - if (omapdss_is_initialized() == false)
> - return -EPROBE_DEFER;
> + DBG("%s", dev_name(dev));
>
> - ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
> - if (ret) {
> - dev_err(&pdev->dev, "Failed to set the DMA mask\n");
> - return ret;
> - }
> + priv->dev = dev;
>
> omap_crtc_pre_init();
>
> @@ -567,13 +559,6 @@ static int pdev_probe(struct platform_device *pdev)
> if (ret)
> goto err_crtc_uninit;
>
> - /* Allocate and initialize the driver private structure. */
> - priv = kzalloc(sizeof(*priv), GFP_KERNEL);
> - if (!priv) {
> - ret = -ENOMEM;
> - goto err_disconnect_dssdevs;
> - }
> -
> priv->dispc_ops = dispc_get_ops();
>
> soc = soc_device_match(omapdrm_soc_devices);
> @@ -584,27 +569,27 @@ static int pdev_probe(struct platform_device *pdev)
> INIT_LIST_HEAD(&priv->obj_list);
>
> /* Allocate and initialize the DRM device. */
> - ddev = drm_dev_alloc(&omap_drm_driver, &pdev->dev);
> + ddev = drm_dev_alloc(&omap_drm_driver, priv->dev);
> if (IS_ERR(ddev)) {
> ret = PTR_ERR(ddev);
> - goto err_free_priv;
> + goto err_destroy_wq;
> }
>
> + priv->ddev = ddev;
> ddev->dev_private = priv;
> - platform_set_drvdata(pdev, ddev);
>
> omap_gem_init(ddev);
>
> ret = omap_modeset_init(ddev);
> if (ret) {
> - dev_err(&pdev->dev, "omap_modeset_init failed: ret=%d\n", ret);
> + dev_err(priv->dev, "omap_modeset_init failed: ret=%d\n", ret);
> goto err_free_drm_dev;
> }
>
> /* Initialize vblank handling, start with all CRTCs disabled. */
> ret = drm_vblank_init(ddev, priv->num_crtcs);
> if (ret) {
> - dev_err(&pdev->dev, "could not init vblank\n");
> + dev_err(priv->dev, "could not init vblank\n");
> goto err_cleanup_modeset;
> }
>
> @@ -637,20 +622,17 @@ static int pdev_probe(struct platform_device *pdev)
> err_free_drm_dev:
> omap_gem_deinit(ddev);
> drm_dev_unref(ddev);
> -err_free_priv:
> +err_destroy_wq:
> destroy_workqueue(priv->wq);
> - kfree(priv);
> -err_disconnect_dssdevs:
> omap_disconnect_dssdevs();
> err_crtc_uninit:
> omap_crtc_pre_uninit();
> return ret;
> }
>
> -static int pdev_remove(struct platform_device *pdev)
> +static void omapdrm_cleanup(struct omap_drm_private *priv)
> {
> - struct drm_device *ddev = platform_get_drvdata(pdev);
> - struct omap_drm_private *priv = ddev->dev_private;
> + struct drm_device *ddev = priv->ddev;
>
> DBG("");
>
> @@ -672,10 +654,45 @@ static int pdev_remove(struct platform_device *pdev)
> drm_dev_unref(ddev);
>
> destroy_workqueue(priv->wq);
> - kfree(priv);
>
> omap_disconnect_dssdevs();
> omap_crtc_pre_uninit();
> +}
> +
> +static int pdev_probe(struct platform_device *pdev)
> +{
> + struct omap_drm_private *priv;
> + int ret;
> +
> + if (omapdss_is_initialized() == false)
> + return -EPROBE_DEFER;
> +
> + ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
> + if (ret) {
> + dev_err(&pdev->dev, "Failed to set the DMA mask\n");
> + return ret;
> + }
> +
> + /* Allocate and initialize the driver private structure. */
> + priv = kzalloc(sizeof(*priv), GFP_KERNEL);
> + if (!priv)
> + return -ENOMEM;
> +
> + platform_set_drvdata(pdev, priv);
> +
> + ret = omapdrm_init(priv, &pdev->dev);
> + if (ret < 0)
> + kfree(priv);
> +
> + return ret;
> +}
> +
> +static int pdev_remove(struct platform_device *pdev)
> +{
> + struct omap_drm_private *priv = platform_get_drvdata(pdev);
> +
> + omapdrm_cleanup(priv);
> + kfree(priv);
>
> return 0;
> }
> @@ -719,7 +736,8 @@ static int omap_drm_resume_all_displays(void)
>
> static int omap_drm_suspend(struct device *dev)
> {
> - struct drm_device *drm_dev = dev_get_drvdata(dev);
> + struct omap_drm_private *priv = dev_get_drvdata(dev);
> + struct drm_device *drm_dev = priv->ddev;
>
> drm_kms_helper_poll_disable(drm_dev);
>
> @@ -732,7 +750,8 @@ static int omap_drm_suspend(struct device *dev)
>
> static int omap_drm_resume(struct device *dev)
> {
> - struct drm_device *drm_dev = dev_get_drvdata(dev);
> + struct omap_drm_private *priv = dev_get_drvdata(dev);
> + struct drm_device *drm_dev = priv->ddev;
>
> drm_modeset_lock_all(drm_dev);
> omap_drm_resume_all_displays();
> diff --git a/drivers/gpu/drm/omapdrm/omap_drv.h b/drivers/gpu/drm/omapdrm/omap_drv.h
> index 7bf008f02a77..2c06533a2d0a 100644
> --- a/drivers/gpu/drm/omapdrm/omap_drv.h
> +++ b/drivers/gpu/drm/omapdrm/omap_drv.h
> @@ -48,6 +48,8 @@
> struct omap_drm_usergart;
>
> struct omap_drm_private {
> + struct drm_device *ddev;
> + struct device *dev;
> u32 omaprev;
>
> const struct dispc_ops *dispc_ops;
> --
> Regards,
>
> Laurent Pinchart
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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