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Subject[PATCH v1 1/4] drm/mediatek: config component output by device node port
Date
From: Bibby Hsieh <bibby.hsieh@mediatek.com>

We can select output component by decive node port.
Main path default output component is DSI.
External path default output component is DPI.

Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_drm_drv.c | 41 ++++++++++++++++++++++----
drivers/gpu/drm/mediatek/mtk_drm_drv.h | 4 +--
2 files changed, 37 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 57ce4708ef1b..d3e86426dc65 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -22,7 +22,9 @@
#include <drm/drm_probe_helper.h>
#include <linux/component.h>
#include <linux/iommu.h>
+#include <linux/of.h>
#include <linux/of_address.h>
+#include <linux/of_graph.h>
#include <linux/of_platform.h>
#include <linux/pm_runtime.h>

@@ -134,7 +136,7 @@ static const struct drm_mode_config_funcs mtk_drm_mode_config_funcs = {
.atomic_commit = mtk_atomic_commit,
};

-static const enum mtk_ddp_comp_id mt2701_mtk_ddp_main[] = {
+static enum mtk_ddp_comp_id mt2701_mtk_ddp_main[] = {
DDP_COMPONENT_OVL0,
DDP_COMPONENT_RDMA0,
DDP_COMPONENT_COLOR0,
@@ -142,12 +144,12 @@ static const enum mtk_ddp_comp_id mt2701_mtk_ddp_main[] = {
DDP_COMPONENT_DSI0,
};

-static const enum mtk_ddp_comp_id mt2701_mtk_ddp_ext[] = {
+static enum mtk_ddp_comp_id mt2701_mtk_ddp_ext[] = {
DDP_COMPONENT_RDMA1,
DDP_COMPONENT_DPI0,
};

-static const enum mtk_ddp_comp_id mt2712_mtk_ddp_main[] = {
+static enum mtk_ddp_comp_id mt2712_mtk_ddp_main[] = {
DDP_COMPONENT_OVL0,
DDP_COMPONENT_COLOR0,
DDP_COMPONENT_AAL0,
@@ -157,7 +159,7 @@ static const enum mtk_ddp_comp_id mt2712_mtk_ddp_main[] = {
DDP_COMPONENT_PWM0,
};

-static const enum mtk_ddp_comp_id mt2712_mtk_ddp_ext[] = {
+static enum mtk_ddp_comp_id mt2712_mtk_ddp_ext[] = {
DDP_COMPONENT_OVL1,
DDP_COMPONENT_COLOR1,
DDP_COMPONENT_AAL1,
@@ -173,7 +175,7 @@ static const enum mtk_ddp_comp_id mt2712_mtk_ddp_third[] = {
DDP_COMPONENT_PWM2,
};

-static const enum mtk_ddp_comp_id mt8173_mtk_ddp_main[] = {
+static enum mtk_ddp_comp_id mt8173_mtk_ddp_main[] = {
DDP_COMPONENT_OVL0,
DDP_COMPONENT_COLOR0,
DDP_COMPONENT_AAL0,
@@ -184,7 +186,7 @@ static const enum mtk_ddp_comp_id mt8173_mtk_ddp_main[] = {
DDP_COMPONENT_PWM0,
};

-static const enum mtk_ddp_comp_id mt8173_mtk_ddp_ext[] = {
+static enum mtk_ddp_comp_id mt8173_mtk_ddp_ext[] = {
DDP_COMPONENT_OVL1,
DDP_COMPONENT_COLOR1,
DDP_COMPONENT_GAMMA,
@@ -479,6 +481,7 @@ static int mtk_drm_probe(struct platform_device *pdev)

/* Iterate over sibling DISP function blocks */
for_each_child_of_node(dev->of_node->parent, node) {
+ struct device_node *port, *ep, *remote;
const struct of_device_id *of_id;
enum mtk_ddp_comp_type comp_type;
int comp_id;
@@ -538,6 +541,32 @@ static int mtk_drm_probe(struct platform_device *pdev)

private->ddp_comp[comp_id] = comp;
}
+
+ if (comp_type != MTK_DSI && comp_type != MTK_DPI) {
+ port = of_graph_get_port_by_id(node, 0);
+ if (!port)
+ continue;
+ ep = of_get_child_by_name(port, "endpoint");
+ of_node_put(port);
+ if (!ep)
+ continue;
+ remote = of_graph_get_remote_port_parent(ep);
+ of_node_put(ep);
+ if (!remote)
+ continue;
+ of_id = of_match_node(mtk_ddp_comp_dt_ids, remote);
+ if (!of_id)
+ continue;
+ comp_type = (enum mtk_ddp_comp_type)of_id->data;
+ for (i = 0; i < private->data->main_len - 1; i++)
+ if (private->data->main_path[i] == comp_id)
+ private->data->main_path[i + 1] =
+ mtk_ddp_comp_get_id(node, comp_type);
+ for (i = 0; i < private->data->ext_len - 1; i++)
+ if (private->data->ext_path[i] == comp_id)
+ private->data->ext_path[i + 1] =
+ mtk_ddp_comp_get_id(node, comp_type);
+ }
}

if (!private->mutex_node) {
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
index ecc00ca3221d..256a3ff2e66e 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
@@ -29,9 +29,9 @@ struct drm_property;
struct regmap;

struct mtk_mmsys_driver_data {
- const enum mtk_ddp_comp_id *main_path;
+ enum mtk_ddp_comp_id *main_path;
unsigned int main_len;
- const enum mtk_ddp_comp_id *ext_path;
+ enum mtk_ddp_comp_id *ext_path;
unsigned int ext_len;
const enum mtk_ddp_comp_id *third_path;
unsigned int third_len;
--
2.17.1
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