[PATCH v2 1/5] drm/rockchip: vop: Fix reset of state in duplicate state crtc funcs

From: Jonas Karlman
Date: Wed Jun 21 2023 - 18:33:23 EST


struct rockchip_crtc_state members such as output_type, output_bpc and
enable_afbc is always reset to zero in the atomic_duplicate_state crtc
funcs.

Fix this by using kmemdup on the subclass rockchip_crtc_state struct.

Fixes: 4e257d9eee23 ("drm/rockchip: get rid of rockchip_drm_crtc_mode_config")
Signed-off-by: Jonas Karlman <jonas@xxxxxxxxx>
Reviewed-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
v2:
- Collect r-b tag

drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index a530ecc4d207..60b23636a3fe 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -1614,7 +1614,8 @@ static struct drm_crtc_state *vop_crtc_duplicate_state(struct drm_crtc *crtc)
if (WARN_ON(!crtc->state))
return NULL;

- rockchip_state = kzalloc(sizeof(*rockchip_state), GFP_KERNEL);
+ rockchip_state = kmemdup(to_rockchip_crtc_state(crtc->state),
+ sizeof(*rockchip_state), GFP_KERNEL);
if (!rockchip_state)
return NULL;

--
2.41.0