diff options
Diffstat (limited to 'drivers/gpu/drm/rockchip/rockchip_drm_vop.c')
| -rw-r--r-- | drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 7a1de09d45d8..d2d92cc4b420 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -519,7 +519,10 @@ static int vop_enable(struct drm_crtc *crtc) goto err_disable_aclk; } - memcpy(vop->regs, vop->regsbak, vop->len); + spin_lock(&vop->reg_lock); + for (i = 0; i < vop->len; i += 4) + writel_relaxed(vop->regsbak[i / 4], vop->regs + i); + /* * We need to make sure that all windows are disabled before we * enable the crtc. Otherwise we might try to scan from a destroyed @@ -529,10 +532,9 @@ static int vop_enable(struct drm_crtc *crtc) struct vop_win *vop_win = &vop->win[i]; const struct vop_win_data *win = vop_win->data; - spin_lock(&vop->reg_lock); VOP_WIN_SET(vop, win, enable, 0); - spin_unlock(&vop->reg_lock); } + spin_unlock(&vop->reg_lock); vop_cfg_done(vop); @@ -1404,7 +1406,8 @@ static int vop_initial(struct vop *vop) VOP_INTR_SET_TYPE(vop, clear, INTR_MASK, 1); VOP_INTR_SET_TYPE(vop, enable, INTR_MASK, 0); - memcpy(vop->regsbak, vop->regs, vop->len); + for (i = 0; i < vop->len; i += sizeof(u32)) + vop->regsbak[i / 4] = readl_relaxed(vop->regs + i); VOP_REG_SET(vop, misc, global_regdone_en, 1); VOP_REG_SET(vop, common, dsp_blank, 0); |