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openmptcprouter/root/target/linux/mediatek/patches-5.4/0181-drm-Add-get_possible_crtc.patch
Ycarus (Yannick Chabanois) 8b04e8ac65 Add patches for BPI-R2
2020-04-20 09:45:14 +02:00

84 lines
2.9 KiB
Diff

From 452b508468a46ef0fe7357fab6b000c52fd047d3 Mon Sep 17 00:00:00 2001
From: Stu Hsieh <stu.hsieh@mediatek.com>
Date: Fri, 16 Nov 2018 16:33:00 +0100
Subject: [PATCH] drm: Add get_possible_crtc API for dpi, dsi
Test: build pass and run ok
Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 40 +++++++++++++++++++++
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 2 ++
2 files changed, 42 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index efa85973e46b..29796e78b26a 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -237,6 +237,22 @@ static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
[DDP_COMPONENT_WDMA1] = { MTK_DISP_WDMA, 1, NULL },
};
+static bool mtk_drm_find_comp_in_ddp(struct mtk_ddp_comp ddp_comp,
+ const enum mtk_ddp_comp_id *path,
+ unsigned int path_len)
+{
+ unsigned int i;
+
+ if (path == NULL)
+ return false;
+
+ for (i = 0U; i < path_len; i++)
+ if (ddp_comp.id == path[i])
+ return true;
+
+ return false;
+}
+
int mtk_ddp_comp_get_id(struct device_node *node,
enum mtk_ddp_comp_type comp_type)
{
@@ -252,6 +268,30 @@ int mtk_ddp_comp_get_id(struct device_node *node,
return -EINVAL;
}
+unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm,
+ struct mtk_ddp_comp ddp_comp)
+{
+ struct mtk_drm_private *private = drm->dev_private;
+ unsigned int ret;
+
+ if (mtk_drm_find_comp_in_ddp(ddp_comp, private->data->main_path,
+ private->data->main_len) == true) {
+ ret = BIT(0);
+ } else if (mtk_drm_find_comp_in_ddp(ddp_comp,
+ private->data->ext_path,
+ private->data->ext_len) == true) {
+ ret = BIT(1);
+ } else if (mtk_drm_find_comp_in_ddp(ddp_comp,
+ private->data->third_path,
+ private->data->third_len) == true) {
+ ret = BIT(2);
+ } else {
+ DRM_INFO("Failed to find comp in ddp table\n");
+ ret = 0;
+ }
+ return ret;
+}
+
int mtk_ddp_comp_init(struct device *dev, struct device_node *node,
struct mtk_ddp_comp *comp, enum mtk_ddp_comp_id comp_id,
const struct mtk_ddp_comp_funcs *funcs)
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
index 0ad287f427cc..97be111c3e52 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -160,6 +160,8 @@ static inline void mtk_ddp_gamma_set(struct mtk_ddp_comp *comp,
int mtk_ddp_comp_get_id(struct device_node *node,
enum mtk_ddp_comp_type comp_type);
+unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm,
+ struct mtk_ddp_comp ddp_comp);
int mtk_ddp_comp_init(struct device *dev, struct device_node *comp_node,
struct mtk_ddp_comp *comp, enum mtk_ddp_comp_id comp_id,
const struct mtk_ddp_comp_funcs *funcs);