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drm/rockchip: vop2: add support write regs

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Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Change-Id: Ibea567b6cca31f7b6fe6b0a00b834b71dc26ec8e
This commit is contained in:
Sandy Huang
2024-07-22 10:52:09 +08:00
committed by Huang Jiachai
parent 20d88dd0fd
commit a94380efa6
1 changed files with 35 additions and 0 deletions
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35
drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
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@@ -7351,6 +7351,39 @@ static void vop2_crtc_active_regs_dump(struct drm_crtc *crtc, struct seq_file *s
}
}
static int vop2_crtc_regs_write(struct drm_crtc *crtc, phys_addr_t address, u32 val)
{
struct vop2_video_port *vp = to_vop2_video_port(crtc);
struct vop2 *vop2 = vp->vop2;
struct drm_crtc_state *cstate = crtc->state;
void __iomem *regs;
struct vop2_resource *resources[4] = {&vop2->base_res,
&vop2->lut_res,
&vop2->acm_res,
&vop2->sharp_res};
u32 offset = 0, i = 0, res_num = ARRAY_SIZE(resources);
if (!cstate->active) {
DRM_DEV_ERROR(vop2->dev, "Video port%d is disabled\n", vp->id);
return -EINVAL;
}
for (i = 0; i < res_num; i++) {
if (resources[i]->res && address >= resources[i]->res->start &&
address < resources[i]->res->end) {
regs = resources[i]->regs;
offset = address - resources[i]->res->start;
writel(val, regs + offset);
return 0;
}
}
DRM_ERROR("unsupported address: %pa\n", &address);
return -ENXIO;
}
static int vop2_gamma_show(struct seq_file *s, void *data)
{
struct drm_info_node *node = s->private;
@@ -7585,6 +7618,7 @@ static int vop2_crtc_debugfs_init(struct drm_minor *minor, struct drm_crtc *crtc
#if defined(CONFIG_ROCKCHIP_DRM_DEBUG)
rockchip_drm_add_dump_buffer(crtc, vop2->debugfs);
rockchip_drm_debugfs_add_color_bar(crtc, vop2->debugfs);
rockchip_drm_debugfs_add_regs_write(crtc, vop2->debugfs);
#endif
for (i = 0; i < ARRAY_SIZE(vop2_debugfs_files); i++)
vop2->debugfs_files[i].data = vop2;
@@ -7894,6 +7928,7 @@ static const struct rockchip_crtc_funcs private_crtc_funcs = {
.debugfs_dump = vop2_crtc_debugfs_dump,
.regs_dump = vop2_crtc_regs_dump,
.active_regs_dump = vop2_crtc_active_regs_dump,
.regs_write = vop2_crtc_regs_write,
.bandwidth = vop2_crtc_bandwidth,
.crtc_close = vop2_crtc_close,
.te_handler = vop2_crtc_te_handler,