Hi,
On Tue, Aug 27, 2024 at 11:57:36AM GMT, Louis Chauvet wrote:
> The current VKMS driver uses non-managed function to create connectors. It
> is not an issue yet, but in order to support multiple devices easily,
> convert this code to use drm and device managed helpers.
>
> Signed-off-by: Louis Chauvet <louis.chauvet@xxxxxxxxxxx>
> ---
> drivers/gpu/drm/vkms/vkms_drv.h | 1 -
> drivers/gpu/drm/vkms/vkms_output.c | 22 ++++++++++++----------
> 2 files changed, 12 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h
> index 5e46ea5b96dc..9a3c6c34d1f6 100644
> --- a/drivers/gpu/drm/vkms/vkms_drv.h
> +++ b/drivers/gpu/drm/vkms/vkms_drv.h
> @@ -99,7 +99,6 @@ struct vkms_crtc_state {
> struct vkms_output {
> struct drm_crtc crtc;
> struct drm_encoder encoder;
> - struct drm_connector connector;
> struct drm_writeback_connector wb_connector;
> struct hrtimer vblank_hrtimer;
> ktime_t period_ns;
> diff --git a/drivers/gpu/drm/vkms/vkms_output.c b/drivers/gpu/drm/vkms/vkms_output.c
> index 5ce70dd946aa..4fe6b88e8081 100644
> --- a/drivers/gpu/drm/vkms/vkms_output.c
> +++ b/drivers/gpu/drm/vkms/vkms_output.c
> @@ -3,11 +3,11 @@
> #include "vkms_drv.h"
> #include <drm/drm_atomic_helper.h>
> #include <drm/drm_edid.h>
> +#include <drm/drm_managed.h>
> #include <drm/drm_probe_helper.h>
>
> static const struct drm_connector_funcs vkms_connector_funcs = {
> .fill_modes = drm_helper_probe_single_connector_modes,
> - .destroy = drm_connector_cleanup,
> .reset = drm_atomic_helper_connector_reset,
> .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
> .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
> @@ -50,7 +50,7 @@ int vkms_output_init(struct vkms_device *vkmsdev, int index)
> {
> struct vkms_output *output = &vkmsdev->output;
> struct drm_device *dev = &vkmsdev->drm;
> - struct drm_connector *connector = &output->connector;
> + struct drm_connector *connector;
> struct drm_encoder *encoder = &output->encoder;
> struct drm_crtc *crtc = &output->crtc;
> struct vkms_plane *primary, *cursor = NULL;
> @@ -80,8 +80,15 @@ int vkms_output_init(struct vkms_device *vkmsdev, int index)
> if (ret)
> return ret;
>
> - ret = drm_connector_init(dev, connector, &vkms_connector_funcs,
> - DRM_MODE_CONNECTOR_VIRTUAL);
> + connector = drmm_kzalloc(dev, sizeof(*connector), GFP_KERNEL);
> + if (!connector) {
> + DRM_ERROR("Failed to allocate connector\n");
> + ret = -ENOMEM;
> + goto err_connector;
> + }
> +
I think it would be worth explaining why you need to move to a separate
allocation for the connector now.
Maxime
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