Some members of the drm_crtc structure have been deprecated in favor of
equivalent members in the drm_crtc_state structure. As reported by Ville
Syrjala [1], the VKMS driver was still using these deprecated fields. This
commit updates the VKMS driver to use the new drm_crtc_state fields
instead.

Additionally, this commit removes the call to
`drm_calc_timestamping_constants` in `vkms_enable_vblank` as it is
redundant. This calculation is already performed in
`vkms_atomic_commit_tail` by calling
`drm_atomic_helper_commit_modeset_disables`.

[1]:https://lore.kernel.org/all/20241002182200.15363-1-ville.syrj...@linux.intel.com/

Signed-off-by: Louis Chauvet <louis.chau...@bootlin.com>
---
 drivers/gpu/drm/vkms/vkms_composer.c  | 4 ++--
 drivers/gpu/drm/vkms/vkms_crtc.c      | 2 --
 drivers/gpu/drm/vkms/vkms_writeback.c | 4 ++--
 3 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/vkms/vkms_composer.c 
b/drivers/gpu/drm/vkms/vkms_composer.c
index 57a5769fc994..3f0977d746be 100644
--- a/drivers/gpu/drm/vkms/vkms_composer.c
+++ b/drivers/gpu/drm/vkms/vkms_composer.c
@@ -187,7 +187,7 @@ static void blend(struct vkms_writeback_job *wb,
 
        const struct pixel_argb_u16 background_color = { .a = 0xffff };
 
-       size_t crtc_y_limit = crtc_state->base.crtc->mode.vdisplay;
+       size_t crtc_y_limit = crtc_state->base.mode.vdisplay;
 
        /*
         * The planes are composed line-by-line to avoid heavy memory usage. It 
is a necessary
@@ -270,7 +270,7 @@ static int compose_active_planes(struct vkms_writeback_job 
*active_wb,
        if (WARN_ON(check_format_funcs(crtc_state, active_wb)))
                return -EINVAL;
 
-       line_width = crtc_state->base.crtc->mode.hdisplay;
+       line_width = crtc_state->base.mode.hdisplay;
        stage_buffer.n_pixels = line_width;
        output_buffer.n_pixels = line_width;
 
diff --git a/drivers/gpu/drm/vkms/vkms_crtc.c b/drivers/gpu/drm/vkms/vkms_crtc.c
index a40295c18b48..bbf080d32d2c 100644
--- a/drivers/gpu/drm/vkms/vkms_crtc.c
+++ b/drivers/gpu/drm/vkms/vkms_crtc.c
@@ -64,8 +64,6 @@ static int vkms_enable_vblank(struct drm_crtc *crtc)
        struct drm_vblank_crtc *vblank = drm_crtc_vblank_crtc(crtc);
        struct vkms_output *out = drm_crtc_to_vkms_output(crtc);
 
-       drm_calc_timestamping_constants(crtc, &crtc->mode);
-
        hrtimer_init(&out->vblank_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
        out->vblank_hrtimer.function = &vkms_vblank_simulate;
        out->period_ns = ktime_set(0, vblank->framedur_ns);
diff --git a/drivers/gpu/drm/vkms/vkms_writeback.c 
b/drivers/gpu/drm/vkms/vkms_writeback.c
index bc724cbd5e3a..999d5c01ea81 100644
--- a/drivers/gpu/drm/vkms/vkms_writeback.c
+++ b/drivers/gpu/drm/vkms/vkms_writeback.c
@@ -131,8 +131,8 @@ static void vkms_wb_atomic_commit(struct drm_connector 
*conn,
        struct drm_connector_state *conn_state = wb_conn->base.state;
        struct vkms_crtc_state *crtc_state = output->composer_state;
        struct drm_framebuffer *fb = connector_state->writeback_job->fb;
-       u16 crtc_height = crtc_state->base.crtc->mode.vdisplay;
-       u16 crtc_width = crtc_state->base.crtc->mode.hdisplay;
+       u16 crtc_height = crtc_state->base.mode.vdisplay;
+       u16 crtc_width = crtc_state->base.mode.hdisplay;
        struct vkms_writeback_job *active_wb;
        struct vkms_frame_info *wb_frame_info;
        u32 wb_format = fb->format->format;

---
base-commit: cbc1e8696fbea0010a73bf93534c712f9ad177db
change-id: 20241003-remove-legacy-a2683a7bbcd5

Best regards,
-- 
Louis Chauvet <louis.chau...@bootlin.com>

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