The Rockchip VOP2 features an internal RGB output block, which can be
attached to the video port 2 of the VOP2. Add support for this output
block.
Signed-off-by: Michael Riesch <[email protected]>
---
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..f30037d161ae 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);
}
--
2.30.2
Hi Michael,
On Thu, Jan 19, 2023 at 03:39:10PM +0100, Michael Riesch wrote:
> The Rockchip VOP2 features an internal RGB output block, which can be
> attached to the video port 2 of the VOP2. Add support for this output
> block.
>
> Signed-off-by: Michael Riesch <[email protected]>
> ---
> v2:
> - move away from wrong assumption that the RGB block is always
> connected to video port 2 -> check devicetree to find RGB block
Traces of that assumption are still in the commmit message.
>
> drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 44 ++++++++++++++++++++
> 1 file changed, 44 insertions(+)
>
> +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) {
'0' seems to be a valid vp as well. Shouldn't this be 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;
> + }
> + }
> +
Sascha
--
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31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
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Hi Sascha,
On 1/19/23 16:17, Sascha Hauer wrote:
> Hi Michael,
>
> On Thu, Jan 19, 2023 at 03:39:10PM +0100, Michael Riesch wrote:
>> The Rockchip VOP2 features an internal RGB output block, which can be
>> attached to the video port 2 of the VOP2. Add support for this output
>> block.
>>
>> Signed-off-by: Michael Riesch <[email protected]>
>> ---
>> v2:
>> - move away from wrong assumption that the RGB block is always
>> connected to video port 2 -> check devicetree to find RGB block
>
> Traces of that assumption are still in the commmit message.
Oops, this needs fixing of course...
>> drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 44 ++++++++++++++++++++
>> 1 file changed, 44 insertions(+)
>>
>> +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) {
>
> '0' seems to be a valid vp as well. Shouldn't this be ret >= 0?
...and you are right of course. What a stupid mistake.
Will fix these in v3.
Best regards,
Michael
>
>> + 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;
>> + }
>> + }
>> +
>
> Sascha
>