On Tue, May 07, 2024 at 01:58:29PM +0200, Thomas Zimmermann wrote:
> Implement struct drm_client_funcs.unregister with the helpers
> drm_fbdev_helper_client_unregister() and remove the custom code
> from the driver. The generic helper is equivalent in functionality.
>
> Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
> ---
> drivers/gpu/drm/i915/display/intel_fbdev.c | 21 ++-------------------
> 1 file changed, 2 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c
> index bda702c2cab8e..f1b4543bffc02 100644
> --- a/drivers/gpu/drm/i915/display/intel_fbdev.c
> +++ b/drivers/gpu/drm/i915/display/intel_fbdev.c
> @@ -38,7 +38,6 @@
> #include <linux/vga_switcheroo.h>
>
> #include <drm/drm_crtc.h>
> -#include <drm/drm_crtc_helper.h>
> #include <drm/drm_fb_helper.h>
> #include <drm/drm_fourcc.h>
> #include <drm/drm_gem_framebuffer_helper.h>
> @@ -580,25 +579,9 @@ static int intel_fbdev_restore_mode(struct drm_i915_private *dev_priv)
> }
>
> /*
> - * Fbdev client and struct drm_client_funcs
> + * struct drm_client_funcs
> */
>
> -static void intel_fbdev_client_unregister(struct drm_client_dev *client)
> -{
> - struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
> - struct drm_device *dev = fb_helper->dev;
> - struct pci_dev *pdev = to_pci_dev(dev->dev);
> -
> - if (fb_helper->info) {
> - vga_switcheroo_client_fb_set(pdev, NULL);
> - drm_fb_helper_unregister_info(fb_helper);
> - } else {
> - drm_fb_helper_unprepare(fb_helper);
> - drm_client_release(&fb_helper->client);
The only real difference is that these 2 calls are inverted in the new
drm_fbdev_helper_client_unregister.
I feel that the releasing after the unprepare sounds more logical,
but if there's no actual issue with that and it is working for
everybody, let's do that.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Acked-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
(to get through drm-misc with everything else if you prefer)
> - kfree(fb_helper);
> - }
> -}
> -
> static int intel_fbdev_client_restore(struct drm_client_dev *client)
> {
> struct drm_i915_private *dev_priv = to_i915(client->dev);
> @@ -644,7 +627,7 @@ static int intel_fbdev_client_hotplug(struct drm_client_dev *client)
>
> static const struct drm_client_funcs intel_fbdev_client_funcs = {
> .owner = THIS_MODULE,
> - .unregister = intel_fbdev_client_unregister,
> + .unregister = drm_fbdev_helper_client_unregister,
> .restore = intel_fbdev_client_restore,
> .hotplug = intel_fbdev_client_hotplug,
> };
> --
> 2.44.0
>
