diff options
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_lut.c | 25 | ||||
| -rw-r--r-- | drivers/media/platform/vsp1/vsp1_lut.h | 3 |
2 files changed, 18 insertions, 10 deletions
diff --git a/drivers/media/platform/vsp1/vsp1_lut.c b/drivers/media/platform/vsp1/vsp1_lut.c index 9619b9a43be4..dc31de9602ba 100644 --- a/drivers/media/platform/vsp1/vsp1_lut.c +++ b/drivers/media/platform/vsp1/vsp1_lut.c @@ -52,7 +52,9 @@ static int lut_set_table(struct vsp1_lut *lut, struct v4l2_ctrl *ctrl) vsp1_dl_fragment_write(dlb, VI6_LUT_TABLE + 4 * i, ctrl->p_new.p_u32[i]); + spin_lock_irq(&lut->lock); swap(lut->lut, dlb); + spin_unlock_irq(&lut->lock); vsp1_dl_fragment_free(dlb); return 0; @@ -184,20 +186,21 @@ static void lut_configure(struct vsp1_entity *entity, struct vsp1_dl_list *dl, bool full) { struct vsp1_lut *lut = to_lut(&entity->subdev); + struct vsp1_dl_body *dlb; + unsigned long flags; - if (!full) + if (full) { + vsp1_lut_write(lut, dl, VI6_LUT_CTRL, VI6_LUT_CTRL_EN); return; - - vsp1_lut_write(lut, dl, VI6_LUT_CTRL, VI6_LUT_CTRL_EN); - - mutex_lock(lut->ctrls.lock); - - if (lut->lut) { - vsp1_dl_list_add_fragment(dl, lut->lut); - lut->lut = NULL; } - mutex_unlock(lut->ctrls.lock); + spin_lock_irqsave(&lut->lock, flags); + dlb = lut->lut; + lut->lut = NULL; + spin_unlock_irqrestore(&lut->lock, flags); + + if (dlb) + vsp1_dl_list_add_fragment(dl, dlb); } static const struct vsp1_entity_operations lut_entity_ops = { @@ -217,6 +220,8 @@ struct vsp1_lut *vsp1_lut_create(struct vsp1_device *vsp1) if (lut == NULL) return ERR_PTR(-ENOMEM); + spin_lock_init(&lut->lock); + lut->entity.ops = &lut_entity_ops; lut->entity.type = VSP1_ENTITY_LUT; diff --git a/drivers/media/platform/vsp1/vsp1_lut.h b/drivers/media/platform/vsp1/vsp1_lut.h index 021898fc0ce5..f8c4e8f0a79d 100644 --- a/drivers/media/platform/vsp1/vsp1_lut.h +++ b/drivers/media/platform/vsp1/vsp1_lut.h @@ -13,6 +13,8 @@ #ifndef __VSP1_LUT_H__ #define __VSP1_LUT_H__ +#include <linux/spinlock.h> + #include <media/media-entity.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-subdev.h> @@ -29,6 +31,7 @@ struct vsp1_lut { struct v4l2_ctrl_handler ctrls; + spinlock_t lock; struct vsp1_dl_body *lut; }; |