| Message ID | 20230124054706.3921383-6-michael.riesch@wolfvision.net (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/rockchip: vop2: add support for the rgb output block | expand |
On 1/24/23 06:47, Michael Riesch wrote: > The Rockchip VOP2 features an internal RGB output block, which can be > attached any video port of the VOP2. Add support for this output block. s/attached any/attached to any/ of course. Can this be fixed when the patch is applied? Michael > Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net> > --- > v3: > - fix commit messages (still assumed video port 2) > - fix condition to make 0 a valid video port > v2: > - move away from wrong assumption that the RGB block is always > connected to video port 2 -> check devicetree to find RGB block > > drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 44 ++++++++++++++++++++ > 1 file changed, 44 insertions(+) > > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c > index 06fcdfa7b885..f38ffd0ccd9f 100644 > --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c > @@ -39,6 +39,7 @@ > #include "rockchip_drm_gem.h" > #include "rockchip_drm_fb.h" > #include "rockchip_drm_vop2.h" > +#include "rockchip_rgb.h" > > /* > * VOP2 architecture > @@ -212,6 +213,9 @@ struct vop2 { > struct clk *hclk; > struct clk *aclk; > > + /* optional internal rgb encoder */ > + struct rockchip_rgb *rgb; > + > /* must be put at the end of the struct */ > struct vop2_win win[]; > }; > @@ -2393,6 +2397,25 @@ static void vop2_destroy_crtcs(struct vop2 *vop2) > } > } > > +static int vop2_find_rgb_encoder(struct vop2 *vop2) > +{ > + struct device_node *node = vop2->dev->of_node; > + struct device_node *endpoint; > + int i; > + > + for (i = 0; i < vop2->data->nr_vps; i++) { > + endpoint = of_graph_get_endpoint_by_regs(node, i, > + ROCKCHIP_VOP2_EP_RGB0); > + if (!endpoint) > + continue; > + > + of_node_put(endpoint); > + return i; > + } > + > + return -ENOENT; > +} > + > static struct reg_field vop2_cluster_regs[VOP2_WIN_MAX_REG] = { > [VOP2_WIN_ENABLE] = REG_FIELD(RK3568_CLUSTER_WIN_CTRL0, 0, 0), > [VOP2_WIN_FORMAT] = REG_FIELD(RK3568_CLUSTER_WIN_CTRL0, 1, 5), > @@ -2698,11 +2721,29 @@ static int vop2_bind(struct device *dev, struct device *master, void *data) > if (ret) > return ret; > > + ret = vop2_find_rgb_encoder(vop2); > + if (ret >= 0) { > + vop2->rgb = rockchip_rgb_init(dev, &vop2->vps[ret].crtc, > + vop2->drm, ret); > + if (IS_ERR(vop2->rgb)) { > + if (PTR_ERR(vop2->rgb) == -EPROBE_DEFER) { > + ret = PTR_ERR(vop2->rgb); > + goto err_crtcs; > + } > + vop2->rgb = NULL; > + } > + } > + > rockchip_drm_dma_init_device(vop2->drm, vop2->dev); > > pm_runtime_enable(&pdev->dev); > > return 0; > + > +err_crtcs: > + vop2_destroy_crtcs(vop2); > + > + return ret; > } > > static void vop2_unbind(struct device *dev, struct device *master, void *data) > @@ -2711,6 +2752,9 @@ static void vop2_unbind(struct device *dev, struct device *master, void *data) > > pm_runtime_disable(dev); > > + if (vop2->rgb) > + rockchip_rgb_fini(vop2->rgb); > + > vop2_destroy_crtcs(vop2); > } >
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c index 06fcdfa7b885..f38ffd0ccd9f 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c @@ -39,6 +39,7 @@ #include "rockchip_drm_gem.h" #include "rockchip_drm_fb.h" #include "rockchip_drm_vop2.h" +#include "rockchip_rgb.h" /* * VOP2 architecture @@ -212,6 +213,9 @@ struct vop2 { struct clk *hclk; struct clk *aclk; + /* optional internal rgb encoder */ + struct rockchip_rgb *rgb; + /* must be put at the end of the struct */ struct vop2_win win[]; }; @@ -2393,6 +2397,25 @@ static void vop2_destroy_crtcs(struct vop2 *vop2) } } +static int vop2_find_rgb_encoder(struct vop2 *vop2) +{ + struct device_node *node = vop2->dev->of_node; + struct device_node *endpoint; + int i; + + for (i = 0; i < vop2->data->nr_vps; i++) { + endpoint = of_graph_get_endpoint_by_regs(node, i, + ROCKCHIP_VOP2_EP_RGB0); + if (!endpoint) + continue; + + of_node_put(endpoint); + return i; + } + + return -ENOENT; +} + static struct reg_field vop2_cluster_regs[VOP2_WIN_MAX_REG] = { [VOP2_WIN_ENABLE] = REG_FIELD(RK3568_CLUSTER_WIN_CTRL0, 0, 0), [VOP2_WIN_FORMAT] = REG_FIELD(RK3568_CLUSTER_WIN_CTRL0, 1, 5), @@ -2698,11 +2721,29 @@ static int vop2_bind(struct device *dev, struct device *master, void *data) if (ret) return ret; + ret = vop2_find_rgb_encoder(vop2); + if (ret >= 0) { + vop2->rgb = rockchip_rgb_init(dev, &vop2->vps[ret].crtc, + vop2->drm, ret); + if (IS_ERR(vop2->rgb)) { + if (PTR_ERR(vop2->rgb) == -EPROBE_DEFER) { + ret = PTR_ERR(vop2->rgb); + goto err_crtcs; + } + vop2->rgb = NULL; + } + } + rockchip_drm_dma_init_device(vop2->drm, vop2->dev); pm_runtime_enable(&pdev->dev); return 0; + +err_crtcs: + vop2_destroy_crtcs(vop2); + + return ret; } static void vop2_unbind(struct device *dev, struct device *master, void *data) @@ -2711,6 +2752,9 @@ static void vop2_unbind(struct device *dev, struct device *master, void *data) pm_runtime_disable(dev); + if (vop2->rgb) + rockchip_rgb_fini(vop2->rgb); + vop2_destroy_crtcs(vop2); }
The Rockchip VOP2 features an internal RGB output block, which can be attached any video port of the VOP2. Add support for this output block. Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net> --- v3: - fix commit messages (still assumed video port 2) - fix condition to make 0 a valid video port v2: - move away from wrong assumption that the RGB block is always connected to video port 2 -> check devicetree to find RGB block drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 44 ++++++++++++++++++++ 1 file changed, 44 insertions(+)